Post-merge fixes. Reformat. Optimize Imports.

# Conflicts:
#	build.gradle
#	gradle.properties
#	src/api/java/appeng/api/util/DimensionalCoord.java
#	src/main/java/appeng/block/paint/PaintSplotchesBakedModel.java
#	src/main/java/appeng/bootstrap/BlockDefinitionBuilder.java
#	src/main/java/appeng/client/gui/AEBaseScreen.java
#	src/main/java/appeng/client/gui/implementations/CraftAmountScreen.java
#	src/main/java/appeng/client/gui/implementations/CraftConfirmScreen.java
#	src/main/java/appeng/client/gui/implementations/CraftingStatusScreen.java
#	src/main/java/appeng/client/gui/implementations/InterfaceScreen.java
#	src/main/java/appeng/client/gui/implementations/InterfaceTerminalScreen.java
#	src/main/java/appeng/client/gui/implementations/LevelEmitterScreen.java
#	src/main/java/appeng/client/gui/implementations/NumberEntryWidget.java
#	src/main/java/appeng/client/gui/implementations/PriorityScreen.java
#	src/main/java/appeng/client/gui/widgets/IconButton.java
#	src/main/java/appeng/client/gui/widgets/NumberBox.java
#	src/main/java/appeng/client/gui/widgets/SettingToggleButton.java
#	src/main/java/appeng/client/gui/widgets/TabButton.java
#	src/main/java/appeng/client/render/DelegateBakedModel.java
#	src/main/java/appeng/client/render/DummyFluidDispatcherBakedModel.java
#	src/main/java/appeng/client/render/FacadeBakedItemModel.java
#	src/main/java/appeng/client/render/FacadeDispatcherBakedModel.java
#	src/main/java/appeng/client/render/cablebus/P2PTunnelFrequencyBakedModel.java
#	src/main/java/appeng/client/render/crafting/EncodedPatternBakedModel.java
#	src/main/java/appeng/client/render/model/AutoRotatingBakedModel.java
#	src/main/java/appeng/client/render/model/BiometricCardBakedModel.java
#	src/main/java/appeng/client/render/model/ColorApplicatorBakedModel.java
#	src/main/java/appeng/client/render/model/GlassBakedModel.java
#	src/main/java/appeng/client/render/model/MemoryCardBakedModel.java
#	src/main/java/appeng/client/render/model/SkyCompassBakedModel.java
#	src/main/java/appeng/client/render/tesr/ChestTileEntityRenderer.java
#	src/main/java/appeng/container/AEBaseContainer.java
#	src/main/java/appeng/container/ContainerLocator.java
#	src/main/java/appeng/container/guisync/SyncData.java
#	src/main/java/appeng/container/implementations/CellWorkbenchContainer.java
#	src/main/java/appeng/container/implementations/CondenserContainer.java
#	src/main/java/appeng/container/implementations/ContainerHelper.java
#	src/main/java/appeng/container/implementations/CraftConfirmContainer.java
#	src/main/java/appeng/container/implementations/CraftingCPUContainer.java
#	src/main/java/appeng/container/implementations/CraftingCPURecord.java
#	src/main/java/appeng/container/implementations/CraftingStatusContainer.java
#	src/main/java/appeng/container/implementations/IOPortContainer.java
#	src/main/java/appeng/container/implementations/InscriberContainer.java
#	src/main/java/appeng/container/implementations/InterfaceTerminalContainer.java
#	src/main/java/appeng/container/implementations/LevelEmitterContainer.java
#	src/main/java/appeng/container/implementations/MEMonitorableContainer.java
#	src/main/java/appeng/container/implementations/MolecularAssemblerContainer.java
#	src/main/java/appeng/container/implementations/PatternTermContainer.java
#	src/main/java/appeng/container/implementations/PriorityContainer.java
#	src/main/java/appeng/container/implementations/QuartzKnifeContainer.java
#	src/main/java/appeng/container/implementations/SpatialIOPortContainer.java
#	src/main/java/appeng/container/implementations/VibrationChamberContainer.java
#	src/main/java/appeng/container/implementations/WirelessTermContainer.java
#	src/main/java/appeng/core/AEConfig.java
#	src/main/java/appeng/core/AppEngBootstrap.java
#	src/main/java/appeng/core/Registration.java
#	src/main/java/appeng/core/api/definitions/ApiItems.java
#	src/main/java/appeng/core/features/registries/WorldGenRegistry.java
#	src/main/java/appeng/core/sync/network/NetworkHandler.java
#	src/main/java/appeng/core/worlddata/WorldData.java
#	src/main/java/appeng/datagen/providers/loot/BlockDropProvider.java
#	src/main/java/appeng/debug/ChunkLoaderBlockEntity.java
#	src/main/java/appeng/debug/ReplicatorCardItem.java
#	src/main/java/appeng/entity/GrowingCrystalEntity.java
#	src/main/java/appeng/fluids/client/gui/FluidLevelEmitterScreen.java
#	src/main/java/appeng/fluids/client/gui/FluidTerminalScreen.java
#	src/main/java/appeng/fluids/container/FluidConfigurableContainer.java
#	src/main/java/appeng/fluids/container/FluidInterfaceContainer.java
#	src/main/java/appeng/fluids/container/FluidLevelEmitterContainer.java
#	src/main/java/appeng/fluids/container/FluidTerminalContainer.java
#	src/main/java/appeng/fluids/util/AEFluidInventory.java
#	src/main/java/appeng/items/misc/CrystalSeedItem.java
#	src/main/java/appeng/items/misc/CrystalSeedRendering.java
#	src/main/java/appeng/items/storage/SpatialStorageCellItem.java
#	src/main/java/appeng/me/cluster/implementations/QuantumCluster.java
#	src/main/java/appeng/mixins/feature/ConfiguredFeaturesAccessor.java
#	src/main/java/appeng/mixins/spatial/BiomesMixin.java
#	src/main/java/appeng/mixins/spatial/DimensionTypeMixin.java
#	src/main/java/appeng/mixins/spatial/EntityMixin.java
#	src/main/java/appeng/mixins/spatial/SkyRenderMixin.java
#	src/main/java/appeng/mixins/structure/BiomeAccessor.java
#	src/main/java/appeng/mixins/structure/GenerationSettingsAccessor.java
#	src/main/java/appeng/parts/automation/FormationPlanePart.java
#	src/main/java/appeng/parts/automation/PlaneBakedModel.java
#	src/main/java/appeng/server/subcommands/SpatialStorageCommand.java
#	src/main/java/appeng/server/subcommands/TestMeteoritesCommand.java
#	src/main/java/appeng/server/subcommands/TestOreGenCommand.java
#	src/main/java/appeng/spatial/SpatialStorageBiome.java
#	src/main/java/appeng/spatial/SpatialStorageChunkGenerator.java
#	src/main/java/appeng/spatial/SpatialStorageDimensionIds.java
#	src/main/java/appeng/spatial/SpatialStorageHelper.java
#	src/main/java/appeng/util/Platform.java
#	src/main/java/appeng/worldgen/BiomeModifier.java
#	src/main/java/appeng/worldgen/meteorite/MeteoriteStructureStart.java
#	src/main/java/appeng/worldgen/meteorite/fallout/FalloutCopy.java
#	src/main/resources/assets/appliedenergistics2/textures/guis/states.png

.github/workflows/pull_requests.yml

@@ -2,7 +2,8 @@ name: 'Build PRs'
 
 on:
   pull_request:
-    branches: [ master ]
+    branches:
+      - '*'
 
 jobs:
   build:

build.gradle

@@ -47,84 +47,6 @@ repositories {
     }
 }
 
-sourceCompatibility = targetCompatibility = JavaVersion.VERSION_1_8
-compileJava {
-    sourceCompatibility = targetCompatibility = JavaVersion.VERSION_1_8
-    options.deprecation = false
-}
-
-// ensure everything uses UTF-8 and not some random codepage chosen by gradle
-compileJava.options.encoding = 'UTF-8'
-tasks.withType(JavaCompile) {
-    options.encoding = 'UTF-8'
-}
-
-// Create version number
-ext.pr = System.getenv('PR_NUMBER') ?: ""
-if (ext.pr) {
-  version = version + "+pr." + ext.pr
-}
-
-ext.branch = System.getenv('BRANCH') ?: ""
-if (ext.branch) {
-  version = version + "+branch." + ext.branch
-}
-
-ext.tag = System.getenv('TAG') ?: ""
-if (ext.tag && ext.tag.startsWith("fabric/v")) {
-  version = ext.tag.substring("fabric/v".length())
-  // Validate that the rest is a semver version
-  if (version ==~ /^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$/) {
-    println("::set-env name=VERSION::${version}")
-  } else {
-    throw new GradleException("Invalid semver: $version")
-  }
-}
-
-// Maven group and artifact name
-group = artifact_group
-archivesBaseName = artifact_basename
-
-sourceSets {
-    api
-    main {
-        compileClasspath += sourceSets.api.output
-        runtimeClasspath += sourceSets.api.output
-        resources {
-            srcDir 'src/generated/resources'
-        }
-    }
-    datagen {
-        compileClasspath += sourceSets.api.output
-        runtimeClasspath += sourceSets.api.output
-        compileClasspath += sourceSets.main.output
-        runtimeClasspath += sourceSets.main.output
-    }
-    test {
-        compileClasspath += sourceSets.api.output
-        runtimeClasspath += sourceSets.api.output
-    }
-    siteexport {
-        compileClasspath += sourceSets.api.output
-        runtimeClasspath += sourceSets.api.output
-        compileClasspath += sourceSets.main.output
-        runtimeClasspath += sourceSets.main.output
-    }
-}
-
-configurations {
-    apiCompile.extendsFrom(compileClasspath)
-    datagenCompile.extendsFrom(compileClasspath)
-    siteexportCompile.extendsFrom(compileClasspath)
-    siteexportRuntime.extendsFrom(runtimeClasspath)
-}
-
-apply from: 'gradle/scripts/spotless.gradle'
-
-minecraft {
-    accessWidener "src/main/resources/appliedenergistics2.accesswidener"
-}
-
 dependencies {
     minecraft "com.mojang:minecraft:${project.minecraft_version}"
     mappings "net.fabricmc:yarn:${project.yarn_mappings}:v2"
@@ -163,6 +85,87 @@ dependencies {
     // unit test dependencies
     testCompile "junit:junit:4.13"
 }
+group = artifact_group
+archivesBaseName = artifact_basename
+
+sourceCompatibility = targetCompatibility = JavaVersion.VERSION_1_8
+compileJava {
+    sourceCompatibility = targetCompatibility = JavaVersion.VERSION_1_8
+    options.deprecation = false
+}
+
+// ensure everything uses UTF-8 and not some random codepage chosen by gradle
+compileJava.options.encoding = 'UTF-8'
+tasks.withType(JavaCompile) {
+    options.encoding = 'UTF-8'
+}
+
+///////////////////
+// Version Number
+
+ext.pr = System.getenv('PR_NUMBER') ?: ""
+if (ext.pr) {
+  version = version + "+pr." + ext.pr
+}
+
+ext.branch = System.getenv('BRANCH') ?: ""
+if (ext.branch) {
+  version = version + "+branch." + ext.branch
+}
+
+ext.tag = System.getenv('TAG') ?: ""
+if (ext.tag && ext.tag.startsWith("fabric/v")) {
+  version = ext.tag.substring("fabric/v".length())
+  // Validate that the rest is a semver version
+  if (version ==~ /^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$/) {
+    println("::set-env name=VERSION::${version}")
+  } else {
+    throw new GradleException("Invalid semver: $version")
+  }
+}
+
+ext.isAlpha = project.version.contains("alpha")
+ext.isBeta = project.version.contains("beta")
+
+sourceSets {
+    api
+    main {
+        compileClasspath += sourceSets.api.output
+        runtimeClasspath += sourceSets.api.output
+        resources {
+            srcDir 'src/generated/resources'
+        }
+    }
+    datagen {
+        compileClasspath += sourceSets.api.output
+        runtimeClasspath += sourceSets.api.output
+        compileClasspath += sourceSets.main.output
+        runtimeClasspath += sourceSets.main.output
+    }
+    test {
+        compileClasspath += sourceSets.api.output
+        runtimeClasspath += sourceSets.api.output
+    }
+    siteexport {
+        compileClasspath += sourceSets.api.output
+        runtimeClasspath += sourceSets.api.output
+        compileClasspath += sourceSets.main.output
+        runtimeClasspath += sourceSets.main.output
+    }
+}
+
+configurations {
+    apiCompile.extendsFrom(compileClasspath)
+    datagenCompile.extendsFrom(compileClasspath)
+    siteexportCompile.extendsFrom(compileClasspath)
+    siteexportRuntime.extendsFrom(runtimeClasspath)
+}
+
+////////////////////
+// Forge/Minecraft
+minecraft {
+    accessWidener "src/main/resources/appliedenergistics2.accesswidener"
+}
 
 processResources {
     inputs.property "version", project.version
@@ -177,10 +180,76 @@ processResources {
     }
 }
 
-apply from: 'gradle/scripts/artifacts.gradle'
+//////////////
-apply from: 'gradle/scripts/curseforge.gradle'
+// Aritfacts
+processResources {
+    exclude '.cache'
+}
 
-// configure the maven publication
+jar {
+    finalizedBy 'remapJar'
+
+    from sourceSets.main.output.classesDirs
+    from sourceSets.api.output.classesDirs
+    from sourceSets.main.output.resourcesDir
+    from sourceSets.api.output.resourcesDir
+
+    manifest {
+        attributes([
+                "Specification-Title": "Applied Energistics 2",
+                "Specification-Vendor": "TeamAppliedEnergistics",
+                "Specification-Version": "${project.version}",
+                "Implementation-Title": "${project.name}",
+                "Implementation-Version": "${project.version}",
+                "Implementation-Vendor" :"TeamAppliedEnergistics",
+                "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ"),
+                "MixinConfigs": "appliedenergistics2.mixins.json"
+        ])
+    }
+}
+
+task javadocs(type: Javadoc) {
+    classpath = sourceSets.main.compileClasspath
+    source = sourceSets.api.java
+    include "appeng/api/**"
+
+    options.addStringOption('Xdoclint:none', '-quiet')
+    options.encoding = 'UTF-8'
+    options.charSet = 'UTF-8'
+}
+
+task javadocJar(type: Jar, dependsOn: javadocs) {
+    classifier = "javadoc"
+    from javadoc.destinationDir
+}
+// Loom will automatically attach sourcesJar to a RemapSourcesJar task and to the "build" task
+// if it is present.
+// If you remove this task, sources will not be generated.
+task sourcesJar(type: Jar, dependsOn: classes) {
+    classifier = "sources"
+    from sourceSets.main.allSource
+    from sourceSets.api.allSource
+}
+
+task apiJar(type: Jar) {
+    classifier = "api"
+    from sourceSets.api.output
+    include "appeng/api/**"
+
+    // TODO: when FG bug is fixed, remove allJava from the api jar.
+    // https://github.com/MinecraftForge/ForgeGradle/issues/369
+    // Gradle should be able to pull them from the -sources jar.
+    from sourceSets.api.allJava
+}
+
+artifacts {
+    archives javadocJar
+    archives sourcesJar
+    archives apiJar
+}
+
+//////////////////
+// Maven publish
 publishing {
     if (!version.endsWith("-SNAPSHOT")) {
         publications {
@@ -239,3 +308,64 @@ task runSiteExport(type: RunClientTask, dependsOn: downloadAssets, group: "ae2",
     classpath sourceSets.main.output
     classpath sourceSets.siteexport.output
 }
+
+/////////////
+// Spotless
+spotless {
+    java {
+        target 'src/*/java/appeng/**/*.java'
+
+        indentWithSpaces()
+        eclipse().configFile 'codeformat/codeformat.xml'
+        importOrderFile 'codeformat/ae2.importorder'
+    }
+    format 'json', {
+        target 'src/*/resources/**/*.json'
+        targetExclude 'src/generated/resources/**'
+        prettier().config(['parser': 'json'])
+    }
+}
+
+////////////////
+// Curse Forge
+if (System.getenv("CURSEFORGE") && !version.endsWith("-SNAPSHOT")) {
+    def cfReleaseType = "release"
+    if (ext.isAlpha) {
+      cfReleaseType = "alpha"
+    } else if (ext.isBeta) {
+      cfReleaseType = "beta"
+    }
+
+    curseforge {
+        apiKey = System.getenv("CURSEFORGE")
+        project {
+            id = project.curseforge_project
+            changelogType = "markdown"
+            changelog = System.getenv("CHANGELOG") ?: "Please visit our [releases](https://github.com/AppliedEnergistics/Applied-Energistics-2/releases) for a changelog"
+            releaseType = cfReleaseType
+            addGameVersion project.minecraft_version
+            addGameVersion "Fabric"
+            mainArtifact(remapJar.archiveFile) {
+                displayName = "${project.version} [FABRIC]"
+            }
+        }
+        options {
+            forgeGradleIntegration = false
+        }
+        afterEvaluate {
+            tasks.getByName("curseforge${project.curseforge_project}").dependsOn remapJar
+        }
+    }
+}
+
+////////////////
+// IntelliJ Project Import
+// The Mixin annotation process does not have an obfuscation source when running through the IntelliJ compiler,
+// thus we have to prevent it from being activated as part of importing this Gradle project into IntelliJ.
+if (System.getProperty("idea.sync.active") == "true") {
+    afterEvaluate {
+        tasks.withType(JavaCompile).all {
+            it.options.annotationProcessorPath = files()
+        }
+    }
+}

gradle.properties

@@ -3,24 +3,19 @@ version=0.0.0-SNAPSHOT
 artifact_group=appeng
 artifact_basename=appliedenergistics2-fabric
 
-kotlin.code.style=official
 org.gradle.jvmargs=-Xmx2G
 
 # Fabric Properties
 # Check these on https://modmuss50.me/fabric.html
 
-minecraft_version=1.16.2
+minecraft_version=1.16.3
-yarn_mappings=1.16.2+build.6
+yarn_mappings=1.16.3+build.11
-loader_version=0.9.2+build.206
+loader_version=0.9.3+build.207
 
 #Fabric api
-fabric_version=0.20.1+build.401-1.16
+fabric_version=0.21.0+build.407-1.16
 
-loom_version=0.4-SNAPSHOT
+loom_version=0.5-SNAPSHOT
-
-# Kotlin
-kotlin_version=1.3.61
-fabric_kotlin_version=1.3.61+build.1
 
 # Dependencies
 libblockattributes_version=0.8.0

gradle/scripts/artifacts.gradle

@@ -1,78 +0,0 @@
-/*
- * This file is part of Applied Energistics 2.
- * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
- *
- * Applied Energistics 2 is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Applied Energistics 2 is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
- */
-
-processResources {
-    exclude '.cache'
-}
-
-jar {
-    finalizedBy 'remapJar'
-
-    from sourceSets.main.output.classesDirs
-    from sourceSets.api.output.classesDirs
-    from sourceSets.main.output.resourcesDir
-    from sourceSets.api.output.resourcesDir
-
-    manifest {
-        attributes([
-                "Specification-Title": "Applied Energistics 2",
-                "Specification-Vendor": "TeamAppliedEnergistics",
-                "Specification-Version": "${project.version}",
-                "Implementation-Title": "${project.name}",
-                "Implementation-Version": "${project.version}",
-                "Implementation-Vendor" :"TeamAppliedEnergistics",
-                "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ"),
-        ])
-    }
-}
-
-task javadocs(type: Javadoc) {
-    classpath = sourceSets.main.compileClasspath
-    source = sourceSets.api.java
-    include "appeng/api/**"
-
-    options.addStringOption('Xdoclint:none', '-quiet')
-    options.encoding = 'UTF-8'
-    options.charSet = 'UTF-8'
-}
-
-task javadocJar(type: Jar, dependsOn: javadocs) {
-    classifier = "javadoc"
-    from javadoc.destinationDir
-}
-
-// Loom will automatically attach sourcesJar to a RemapSourcesJar task and to the "build" task
-// if it is present.
-// If you remove this task, sources will not be generated.
-task sourcesJar(type: Jar, dependsOn: classes) {
-    classifier = "sources"
-    from sourceSets.main.allSource
-    from sourceSets.api.allSource
-}
-
-task apiJar(type: Jar) {
-    classifier = "api"
-    from sourceSets.api.output
-    include "appeng/api/**"
-}
-
-artifacts {
-    archives javadocJar
-    archives sourcesJar
-    archives apiJar
-}

gradle/scripts/curseforge.gradle

@@ -1,50 +0,0 @@
-/*
- * This file is part of Applied Energistics 2.
- * Copyright (c) 2020, TeamAppliedEnergistics, All rights reserved.
- *
- * Applied Energistics 2 is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Applied Energistics 2 is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *g GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
- */
-
-def isAlpha = project.version.contains("alpha")
-def isBeta = project.version.contains("beta")
-
-def cfReleaseType = "release"
-if (isAlpha) {
-  cfReleaseType = "alpha"
-} else if (isBeta) {
-  cfReleaseType = "beta"
-}
-
-if (System.getenv("CURSEFORGE") && !version.endsWith("-SNAPSHOT")) {
-  curseforge {
-    apiKey = System.getenv("CURSEFORGE")
-    project {
-      id = project.curseforge_project
-      changelogType = "markdown"
-      changelog = System.getenv("CHANGELOG") ?: "Please visit our [releases](https://github.com/AppliedEnergistics/Applied-Energistics-2/releases) for a changelog"
-      releaseType = cfReleaseType
-      addGameVersion project.minecraft_version
-      addGameVersion "Fabric"
-      mainArtifact(remapJar.archiveFile) {
-        displayName = "${project.version} [FABRIC]"
-      }
-    }
-    options {
-      forgeGradleIntegration = false
-    }
-    afterEvaluate {
-      tasks.getByName("curseforge${project.curseforge_project}").dependsOn remapJar
-    }
-  }
-}

gradle/scripts/dependencies.gradle

@@ -1,42 +0,0 @@
-/*
- * This file is part of Applied Energistics 2.
- * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
- *
- * Applied Energistics 2 is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Applied Energistics 2 is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
- */
-
-repositories {
-    mavenLocal()
-
-    maven { // modmaven, maven proxy
-        name 'modmaven'
-        url "https://modmaven.k-4u.nl/"
-    }
-}
-
-dependencies {
-    minecraft "net.minecraftforge:forge:${minecraft_version}-${forge_version}"
-
-    // compile against provided APIs
-    compileOnly "mezz.jei:jei-${jei_minecraft_version}:${jei_version}:api"
-    compileOnly "mcjty.theoneprobe:TheOneProbe-${minecraft_release}:${minecraft_release}-${top_version}:api"
-
-    // Runtime, Mods
-    runtimeOnly fg.deobf("mezz.jei:jei-${jei_minecraft_version}:${jei_version}")
-    runtimeOnly fg.deobf("mcjty.theoneprobe:TheOneProbe-${minecraft_release}:${minecraft_release}-${top_version}")
-    //runtimeOnly fg.deobf("team.chisel.ctm:CTM:${ctm_version}")
-
-    // unit test dependencies
-    testCompile "junit:junit:4.13"
-}

gradle/scripts/spotless.gradle

@@ -1,32 +0,0 @@
-/*
- * This file is part of Applied Energistics 2.
- * Copyright (c) 2013 - 2020, AlgorithmX2, All rights reserved.
- *
- * Applied Energistics 2 is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Applied Energistics 2 is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *g GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
- */
-
-spotless {
-    java {
-        target 'src/*/java/appeng/**/*.java'
-
-        indentWithSpaces()
-        eclipse().configFile 'codeformat/codeformat.xml'
-        importOrderFile 'codeformat/ae2.importorder'
-    }
-    format 'json', {
-        target 'src/*/resources/**/*.json'
-        targetExclude 'src/generated/resources/**'
-        prettier().config(['parser': 'json'])
-    }
-}

settings.gradle

@@ -10,7 +10,6 @@ pluginManagement {
 
     plugins {
         id "fabric-loom" version loom_version
-        id "org.jetbrains.kotlin.jvm" version kotlin_version
     }
 
 }

src/api/java/appeng/api/crafting/ICraftingHelper.java

@@ -53,10 +53,10 @@ public interface ICraftingHelper {
      * @param stack If null, a new item will be created to hold the encoded pattern.
      *              Otherwise the given item must already contains an encoded
      *              pattern that will be overwritten.
-     * @throws IllegalArgumentException If either in or out contain only empty
-     *                                  ItemStacks.
      * @return A new encoded pattern, or the given stack with the pattern encoded in
      *         it.
+     * @throws IllegalArgumentException If either in or out contain only empty
+     *                                  ItemStacks.
      */
     ItemStack encodeProcessingPattern(@Nullable ItemStack stack, ItemStack[] in, ItemStack[] out);
 

src/api/java/appeng/api/networking/GridNotification.java

@@ -28,4 +28,9 @@ public enum GridNotification {
      * the visible connections for this node have changed, useful for cable.
      */
     CONNECTIONS_CHANGED,
+
+    /**
+     * the owner of the grid node has changed, and the node needs to be re-saved
+     */
+    OWNER_CHANGED
 }

src/api/java/appeng/api/networking/IGridBlock.java

@@ -87,7 +87,8 @@ public interface IGridBlock {
     AEColor getGridColor();
 
     /**
-     * Notifies your IGridBlock that changes were made to your connections
+     * Called by the {@link IGridNode} to notify its {@link IGridBlock} about
+     * events.
      */
     void onGridNotification(@Nonnull GridNotification notification);
 

src/main/java/appeng/block/networking/CableBusBlock.java

@@ -86,7 +86,7 @@ public class CableBusBlock extends AEBaseTileBlock<CableBusBlockEntity> implemen
 
     public CableBusBlock() {
         super(defaultProps(AEMaterials.GLASS).nonOpaque().dropsNothing().dynamicBounds()
-                .lightLevel(state -> state.get(LIGHT_LEVEL)));
+                .luminance(state -> state.get(LIGHT_LEVEL)));
         setDefaultState(getDefaultState().with(LIGHT_LEVEL, 0));
     }
 

src/main/java/appeng/block/paint/PaintSplotchesBakedModel.java

@@ -38,11 +38,11 @@ import appeng.helpers.Splotch;
  */
 class PaintSplotchesBakedModel implements BakedModel, FabricBakedModel {
 
-    private static final SpriteIdentifier TEXTURE_PAINT1 = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_PAINT1 = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "block/paint1"));
-    private static final SpriteIdentifier TEXTURE_PAINT2 = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_PAINT2 = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "block/paint2"));
-    private static final SpriteIdentifier TEXTURE_PAINT3 = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_PAINT3 = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "block/paint3"));
 
     private final Sprite[] textures;

src/main/java/appeng/block/qnb/QnbFormedBakedModel.java

@@ -36,18 +36,18 @@ import appeng.core.AppEng;
 
 class QnbFormedBakedModel implements BakedModel, FabricBakedModel {
 
-    private static final SpriteIdentifier TEXTURE_LINK = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_LINK = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "block/quantum_link"));
-    private static final SpriteIdentifier TEXTURE_RING = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_RING = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "block/quantum_ring"));
-    private static final SpriteIdentifier TEXTURE_RING_LIGHT = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_RING_LIGHT = new SpriteIdentifier(
-            new Identifier(AppEng.MOD_ID, "block/quantum_ring_light"));
+            SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE, new Identifier(AppEng.MOD_ID, "block/quantum_ring_light"));
     private static final SpriteIdentifier TEXTURE_RING_LIGHT_CORNER = new SpriteIdentifier(
-            SpriteAtlasTexture.BLOCK_ATLAS_TEX, new Identifier(AppEng.MOD_ID, "block/quantum_ring_light_corner"));
+            SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE, new Identifier(AppEng.MOD_ID, "block/quantum_ring_light_corner"));
-    private static final SpriteIdentifier TEXTURE_CABLE_GLASS = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_CABLE_GLASS = new SpriteIdentifier(
-            new Identifier(AppEng.MOD_ID, "part/cable/glass/transparent"));
+            SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE, new Identifier(AppEng.MOD_ID, "part/cable/glass/transparent"));
     private static final SpriteIdentifier TEXTURE_COVERED_CABLE = new SpriteIdentifier(
-            SpriteAtlasTexture.BLOCK_ATLAS_TEX, new Identifier(AppEng.MOD_ID, "part/cable/covered/transparent"));
+            SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE, new Identifier(AppEng.MOD_ID, "part/cable/covered/transparent"));
 
     private static final float DEFAULT_RENDER_MIN = 2.0f;
     private static final float DEFAULT_RENDER_MAX = 14.0f;

src/main/java/appeng/client/gui/AEBaseScreen.java

@@ -106,6 +106,7 @@ public abstract class AEBaseScreen<T extends AEBaseContainer> extends HandledScr
     private Stopwatch dbl_clickTimer = Stopwatch.createStarted();
     private ItemStack dbl_whichItem = ItemStack.EMPTY;
     private Slot bl_clicked;
+    private boolean handlingRightClick;
     protected final List<CustomSlotWidget> guiSlots = new ArrayList<>();
 
     public AEBaseScreen(T container, PlayerInventory playerInventory, Text title) {
@@ -284,12 +285,18 @@ public abstract class AEBaseScreen<T extends AEBaseContainer> extends HandledScr
     public boolean mouseClicked(final double xCoord, final double yCoord, final int btn) {
         this.drag_click.clear();
 
+        // Forward right-clicks as-if they were left-clicks
         if (btn == 1) {
-            for (final Object o : this.buttons) {
+            handlingRightClick = true;
-                final AbstractButtonWidget widget = (AbstractButtonWidget) o;
+            try {
-                if (widget.isMouseOver(xCoord, yCoord)) {
+                for (final Object o : this.buttons) {
-                    return super.mouseClicked(xCoord, yCoord, 0);
+                    final AbstractButtonWidget widget = (AbstractButtonWidget) o;
+                    if (widget.isMouseOver(xCoord, yCoord)) {
+                        return super.mouseClicked(xCoord, yCoord, 0);
+                    }
                 }
+            } finally {
+                handlingRightClick = false;
             }
         }
 
@@ -300,22 +307,36 @@ public abstract class AEBaseScreen<T extends AEBaseContainer> extends HandledScr
             }
         }
 
-        if (this.getScrollBar() != null) {
+        // Forward left mouse button down events to the scrollbar
-            this.getScrollBar().click(xCoord - this.x, yCoord - this.y);
+        if (btn == 0 && this.getScrollBar() != null) {
+            if (this.getScrollBar().mouseDown(xCoord - this.x, yCoord - this.y)) {
+                return true;
+            }
         }
 
         return super.mouseClicked(xCoord, yCoord, btn);
     }
 
     @Override
-    public boolean mouseDragged(double mouseX, double mouseY, int mouseButton, double dragX, double dragY) {
+    public boolean mouseReleased(double mouseX, double mouseY, int button) {
+        // Forward left mouse button up events to the scrollbar
+        if (button == 0 && this.getScrollBar() != null) {
+            if (this.getScrollBar().mouseUp(mouseX - this.x, mouseY - this.y)) {
+                return true;
+            }
+        }
 
+        return super.mouseReleased(mouseX, mouseY, button);
+    }
+
+    @Override
+    public boolean mouseDragged(double mouseX, double mouseY, int mouseButton, double dragX, double dragY) {
         final Slot slot = this.getSlot((int) mouseX, (int) mouseY);
         final ItemStack itemstack = getPlayer().inventory.getCursorStack();
 
         if (this.getScrollBar() != null) {
             // FIXME: Coordinate system of mouseX/mouseY is unclear
-            this.getScrollBar().click((int) mouseX - this.x, (int) mouseY - this.y);
+            this.getScrollBar().mouseDragged((int) mouseX - this.x, (int) mouseY - this.y);
         }
 
         if (slot instanceof FakeSlot && !itemstack.isEmpty()) {
@@ -622,15 +643,7 @@ public abstract class AEBaseScreen<T extends AEBaseContainer> extends HandledScr
     }
 
     protected Text getGuiDisplayName(final Text in) {
-        return this.hasCustomInventoryName() ? new LiteralText(this.getInventoryName()) : in;
+        return title.getString().isEmpty() ? in : title;
-    }
-
-    private boolean hasCustomInventoryName() {
-        return this.handler.getCustomName() != null;
-    }
-
-    private String getInventoryName() {
-        return this.handler.getCustomName();
     }
 
     /**
@@ -798,6 +811,11 @@ public abstract class AEBaseScreen<T extends AEBaseContainer> extends HandledScr
 
     public void tick() {
         super.tick();
+
+        if (this.getScrollBar() != null) {
+            this.getScrollBar().tick();
+        }
+
         for (Element child : children) {
             if (child instanceof ITickingWidget) {
                 ((ITickingWidget) child).tick();
@@ -805,6 +823,14 @@ public abstract class AEBaseScreen<T extends AEBaseContainer> extends HandledScr
         }
     }
 
+    /**
+     * Returns true while the current event being handled is a click of the right
+     * mouse button.
+     */
+    public boolean isHandlingRightClick() {
+        return handlingRightClick;
+    }
+
     public List<Rectangle> getExclusionZones() {
         return Lists.newArrayList(new Rectangle(x, y, backgroundWidth, backgroundHeight));
     }

src/main/java/appeng/client/gui/implementations/CraftAmountScreen.java

@@ -46,22 +46,28 @@ public class CraftAmountScreen extends AEBaseScreen<CraftAmountContainer> {
     public void init() {
         super.init();
 
-        this.amountToCraft = new NumberEntryWidget(this, 20, 30, 138, 62, NumberEntryType.CRAFT_ITEM_COUNT, value -> {
+        this.amountToCraft = new NumberEntryWidget(this, 20, 30, 138, 62, NumberEntryType.CRAFT_ITEM_COUNT);
-        });
         this.amountToCraft.setValue(1);
         this.amountToCraft.setTextFieldBounds(62, 57, 50);
         this.amountToCraft.setMinValue(1);
+        this.amountToCraft.setHideValidationIcon(true);
         this.amountToCraft.addButtons(children::add, this::addButton);
 
         this.next = this
                 .addButton(new ButtonWidget(this.x + 128, this.y + 51, 38, 20, GuiText.Next.text(), this::confirm));
+        this.amountToCraft.setOnConfirm(() -> this.confirm(this.next));
 
         subGui.addBackButton(this::addButton, 154, 0);
+
+        changeFocus(true);
     }
 
     private void confirm(ButtonWidget button) {
-        NetworkHandler.instance()
+        int amount = this.amountToCraft.getIntValue().orElse(0);
-                .sendToServer(new CraftRequestPacket((int) this.amountToCraft.getValue(), hasShiftDown()));
+        if (amount <= 0) {
+            return;
+        }
+        NetworkHandler.instance().sendToServer(new CraftRequestPacket(amount, hasShiftDown()));
     }
 
     @Override
@@ -77,23 +83,9 @@ public class CraftAmountScreen extends AEBaseScreen<CraftAmountContainer> {
         this.bindTexture("guis/craft_amt.png");
         drawTexture(matrices, offsetX, offsetY, 0, 0, this.backgroundWidth, this.backgroundHeight);
 
-        this.next.active = this.amountToCraft.getValue() > 0;
+        this.next.active = this.amountToCraft.getIntValue().orElse(0) > 0;
 
         this.amountToCraft.render(matrices, offsetX, offsetY, partialTicks);
     }
 
-    @Override
-    public boolean keyPressed(int keyCode, int scanCode, int p_keyPressed_3_) {
-        if (keyCode == 28) {
-            this.next.onPress();
-            return true;
-        } else {
-            return super.keyPressed(keyCode, scanCode, p_keyPressed_3_);
-        }
-    }
-
-    protected String getBackground() {
-        return "guis/craftAmt.png";
-    }
-
 }

src/main/java/appeng/client/gui/implementations/CraftConfirmScreen.java

@@ -25,6 +25,8 @@ import java.util.List;
 
 import com.mojang.blaze3d.systems.RenderSystem;
 
+import org.lwjgl.glfw.GLFW;
+
 import net.minecraft.client.gui.widget.ButtonWidget;
 import net.minecraft.client.util.math.MatrixStack;
 import net.minecraft.entity.player.PlayerInventory;
@@ -73,10 +75,6 @@ public class CraftConfirmScreen extends AEBaseScreen<CraftConfirmContainer> {
         this.setScrollBar(scrollbar);
     }
 
-    boolean isAutoStart() {
-        return this.handler.isAutoStart();
-    }
-
     @Override
     public void init() {
         super.init();
@@ -87,12 +85,14 @@ public class CraftConfirmScreen extends AEBaseScreen<CraftConfirmContainer> {
         this.addButton(this.start);
 
         this.selectCPU = new ButtonWidget(this.x + (219 - 180) / 2, this.y + this.backgroundHeight - 68, 180, 20,
-                GuiText.CraftingCPU.withSuffix(": ").append(GuiText.Automatic.text()), btn -> selectNextCpu());
+                getNextCpuButtonLabel(), btn -> selectNextCpu());
         this.selectCPU.active = false;
         this.addButton(this.selectCPU);
 
         addButton(new ButtonWidget(this.x + 6, this.y + this.backgroundHeight - 25, 50, 20, GuiText.Cancel.text(),
                 btn -> subGui.goBack()));
+
+        this.setScrollBar();
     }
 
     @Override
@@ -133,22 +133,22 @@ public class CraftConfirmScreen extends AEBaseScreen<CraftConfirmContainer> {
     }
 
     private void updateCPUButtonText() {
-        Text btnTextText = GuiText.CraftingCPU.withSuffix(": ").append(GuiText.Automatic.text());
+        this.selectCPU.setMessage(getNextCpuButtonLabel());
-        if (this.handler.getSelectedCpu() >= 0)// && status.selectedCpu < status.cpus.size() )
+    }
-        {
-            if (this.handler.getName() != null) {
-                final String name = this.handler.getName().asTruncatedString(20);
-                btnTextText = GuiText.CraftingCPU.withSuffix(": " + name);
-            } else {
-                btnTextText = GuiText.CraftingCPU.withSuffix(": #" + this.handler.getSelectedCpu());
-            }
-        }
 
+    private Text getNextCpuButtonLabel() {
         if (this.handler.hasNoCPU()) {
-            btnTextText = GuiText.NoCraftingCPUs.text();
+            return GuiText.NoCraftingCPUs.text();
         }
 
-        this.selectCPU.setMessage(btnTextText);
+        Text cpuName;
+        if (this.handler.cpuName == null) {
+            cpuName = GuiText.Automatic.text();
+        } else {
+            cpuName = this.handler.cpuName;
+        }
+
+        return GuiText.CraftingCPU.withSuffix(": ").append(cpuName);
     }
 
     private boolean isSimulation() {
@@ -440,7 +440,7 @@ public class CraftConfirmScreen extends AEBaseScreen<CraftConfirmContainer> {
     @Override
     public boolean keyPressed(int keyCode, int scanCode, int p_keyPressed_3_) {
         if (!this.checkHotbarKeys(keyCode, scanCode)) {
-            if (keyCode == 28) {
+            if (keyCode == GLFW.GLFW_KEY_ENTER || keyCode == GLFW.GLFW_KEY_KP_ENTER) {
                 this.start();
                 return true;
             }
@@ -449,7 +449,7 @@ public class CraftConfirmScreen extends AEBaseScreen<CraftConfirmContainer> {
     }
 
     private void selectNextCpu() {
-        final boolean backwards = getClient().mouse.wasRightButtonClicked();
+        final boolean backwards = isHandlingRightClick();
         NetworkHandler.instance().sendToServer(new ConfigValuePacket("Terminal.Cpu", backwards ? "Prev" : "Next"));
     }
 

src/main/java/appeng/client/gui/implementations/CraftingStatusScreen.java

@@ -44,12 +44,12 @@ public class CraftingStatusScreen extends CraftingCPUScreen<CraftingStatusContai
         super.init();
 
         this.selectCPU = new ButtonWidget(this.x + 8, this.y + this.backgroundHeight - 25, 150, 20,
-                GuiText.CraftingCPU.withSuffix(": ").append(GuiText.NoCraftingCPUs.text()), btn -> selectNextCpu());
+                getNextCpuButtonLabel(), btn -> selectNextCpu());
         this.addButton(this.selectCPU);
 
         subGui.addBackButton(btn -> {
             addButton(btn);
-            btn.setHideEdge(13);
+            btn.setHideEdge(true);
         }, 213, -4);
     }
 
@@ -60,23 +60,14 @@ public class CraftingStatusScreen extends CraftingCPUScreen<CraftingStatusContai
     }
 
     private void updateCPUButtonText() {
-        Text btnTextText = GuiText.NoCraftingJobs.text();
+        this.selectCPU.setMessage(getNextCpuButtonLabel());
-
+    }
-        if (this.handler.selectedCpu >= 0)// && status.selectedCpu < status.cpus.size() )
-        {
-            if (this.handler.myName != null) {
-                final String name = this.handler.myName.asTruncatedString(20);
-                btnTextText = GuiText.CPUs.withSuffix(": " + name);
-            } else {
-                btnTextText = GuiText.CPUs.withSuffix(": #" + this.handler.selectedCpu);
-            }
-        }
 
+    private Text getNextCpuButtonLabel() {
         if (this.handler.noCPU) {
-            btnTextText = GuiText.NoCraftingJobs.text();
+            return GuiText.NoCraftingJobs.text();
         }
-
+        return GuiText.CraftingCPU.withSuffix(": ").append(handler.cpuName);
-        this.selectCPU.setMessage(btnTextText);
     }
 
     @Override
@@ -84,9 +75,8 @@ public class CraftingStatusScreen extends CraftingCPUScreen<CraftingStatusContai
         return in; // the cup name is on the button
     }
 
-    // FIXME: Extract to separate class? Shared with GuiCraftConfirm
     private void selectNextCpu() {
-        final boolean backwards = client.mouse.wasRightButtonClicked();
+        final boolean backwards = isHandlingRightClick();
         NetworkHandler.instance().sendToServer(new ConfigValuePacket("Terminal.Cpu", backwards ? "Prev" : "Next"));
     }
 

src/main/java/appeng/client/gui/implementations/InterfaceScreen.java

@@ -87,7 +87,7 @@ public class InterfaceScreen extends UpgradeableScreen<InterfaceContainer> {
     }
 
     private void selectNextInterfaceMode() {
-        final boolean backwards = getClient().mouse.wasRightButtonClicked();
+        final boolean backwards = isHandlingRightClick();
         NetworkHandler.instance().sendToServer(new ConfigButtonPacket(Settings.INTERFACE_TERMINAL, backwards));
     }
 

src/main/java/appeng/client/gui/implementations/InterfaceTerminalScreen.java

@@ -70,8 +70,7 @@ public class InterfaceTerminalScreen extends AEBaseScreen<InterfaceTerminalConta
 
     public InterfaceTerminalScreen(InterfaceTerminalContainer container, PlayerInventory playerInventory, Text title) {
         super(container, playerInventory, title);
-        final Scrollbar scrollbar = new Scrollbar();
+        this.setScrollBar(new Scrollbar().setLeft(175).setTop(18).setHeight(106));
-        this.setScrollBar(scrollbar);
         this.backgroundWidth = 195;
         this.backgroundHeight = 222;
     }
@@ -80,10 +79,6 @@ public class InterfaceTerminalScreen extends AEBaseScreen<InterfaceTerminalConta
     public void init() {
         super.init();
 
-        this.getScrollBar().setLeft(175);
-        this.getScrollBar().setHeight(106);
-        this.getScrollBar().setTop(18);
-
         this.searchField = new AETextField(this.textRenderer, this.x + 104, this.y + 4, 65, 12);
         this.searchField.setHasBorder(false);
         this.searchField.setMaxLength(25);

src/main/java/appeng/client/gui/implementations/LevelEmitterScreen.java

@@ -34,8 +34,6 @@ import appeng.client.gui.widgets.ServerSettingToggleButton;
 import appeng.client.gui.widgets.SettingToggleButton;
 import appeng.container.implementations.LevelEmitterContainer;
 import appeng.core.localization.GuiText;
-import appeng.core.sync.network.NetworkHandler;
-import appeng.core.sync.packets.ConfigValuePacket;
 
 public class LevelEmitterScreen extends UpgradeableScreen<LevelEmitterContainer> {
 
@@ -51,15 +49,18 @@ public class LevelEmitterScreen extends UpgradeableScreen<LevelEmitterContainer>
     public void init() {
         super.init();
 
-        this.level = new NumberEntryWidget(this, 20, 17, 138, 62, NumberEntryType.LEVEL_ITEM_COUNT,
+        this.level = new NumberEntryWidget(this, 20, 17, 138, 62, NumberEntryType.LEVEL_ITEM_COUNT);
-                this::onLevelChange);
         this.level.setTextFieldBounds(25, 44, 75);
         this.level.addButtons(children::add, this::addButton);
-        handler.setTextField(this.level);
+        this.level.setValue(handler.getReportingValue());
+        this.level.setOnChange(this::saveReportingValue);
+        this.level.setOnConfirm(this::onClose);
+
+        this.changeFocus(true);
     }
 
-    private void onLevelChange(long level) {
+    private void saveReportingValue() {
-        NetworkHandler.instance().sendToServer(new ConfigValuePacket("LevelEmitter.Value", String.valueOf(level)));
+        this.level.getLongValue().ifPresent(handler::setReportingValue);
     }
 
     @Override

src/main/java/appeng/client/gui/implementations/MEMonitorableScreen.java

@@ -26,6 +26,7 @@ import net.minecraft.client.util.math.MatrixStack;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.item.ItemStack;
 import net.minecraft.screen.slot.Slot;
+import net.minecraft.text.LiteralText;
 import net.minecraft.text.Text;
 
 import me.shedaniel.math.Rectangle;
@@ -51,6 +52,7 @@ import appeng.client.gui.widgets.SettingToggleButton;
 import appeng.client.gui.widgets.TabButton;
 import appeng.client.me.InternalSlotME;
 import appeng.client.me.ItemRepo;
+import appeng.client.render.StackSizeRenderer;
 import appeng.container.implementations.CraftingStatusContainer;
 import appeng.container.implementations.MEMonitorableContainer;
 import appeng.container.slot.AppEngSlot;
@@ -237,7 +239,7 @@ public class MEMonitorableScreen<T extends MEMonitorableContainer> extends AEBas
         if (this.viewCell || this instanceof WirelessTermScreen) {
             this.craftingStatusBtn = this.addButton(new TabButton(this.x + 170, this.y - 4, 2 + 11 * 16,
                     GuiText.CraftingStatus.text(), this.itemRenderer, btn -> showCraftingStatus()));
-            this.craftingStatusBtn.setHideEdge(13);
+            this.craftingStatusBtn.setHideEdge(true);
         }
 
         this.isAutoFocus = SearchBoxMode.AUTOSEARCH == searchMode || SearchBoxMode.JEI_AUTOSEARCH == searchMode
@@ -283,6 +285,8 @@ public class MEMonitorableScreen<T extends MEMonitorableContainer> extends AEBas
         craftingGridOffsetX -= 25;
         craftingGridOffsetY -= 6;
 
+        this.setScrollBar();
+
     }
 
     @Override
@@ -292,6 +296,16 @@ public class MEMonitorableScreen<T extends MEMonitorableContainer> extends AEBas
 
         this.currentMouseX = mouseX;
         this.currentMouseY = mouseY;
+
+        // Show the number of active crafting jobs
+        if (this.craftingStatusBtn != null && handler.activeCraftingJobs != -1) {
+            // The stack size renderer expects a 16x16 slot, while the button is normally
+            // bigger
+            int x = this.craftingStatusBtn.x + (this.craftingStatusBtn.getWidth() - 16) / 2;
+            int y = this.craftingStatusBtn.y + (this.craftingStatusBtn.getHeight() - 16) / 2;
+            StackSizeRenderer.renderSizeLabel(textRenderer, x - this.x, y - this.y,
+                    new LiteralText(String.valueOf(handler.activeCraftingJobs)));
+        }
     }
 
     @Override
@@ -356,6 +370,7 @@ public class MEMonitorableScreen<T extends MEMonitorableContainer> extends AEBas
         if (this.searchField != null) {
             this.searchField.render(matrices, mouseX, mouseY, partialTicks);
         }
+
     }
 
     protected String getBackground() {

src/main/java/appeng/client/gui/implementations/NumberEntryWidget.java

@@ -2,41 +2,58 @@ package appeng.client.gui.implementations;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.OptionalInt;
+import java.util.OptionalLong;
 import java.util.function.Consumer;
-import java.util.function.LongConsumer;
 
 import net.minecraft.client.font.TextRenderer;
+import net.minecraft.client.gui.DrawableHelper;
 import net.minecraft.client.gui.Element;
 import net.minecraft.client.gui.widget.ButtonWidget;
 import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.text.LiteralText;
 import net.minecraft.text.Text;
+import net.minecraft.text.TranslatableText;
 
 import appeng.client.gui.AEBaseScreen;
 import appeng.client.gui.NumberEntryType;
-import appeng.client.gui.widgets.ITickingWidget;
+import appeng.client.gui.widgets.ConfirmableTextField;
-import appeng.client.gui.widgets.NumberBox;
+import appeng.client.gui.widgets.ValidationIcon;
 import appeng.core.AEConfig;
 
 /**
  * A utility widget that consists of a text-field to enter a number with
  * attached buttons to increment/decrement the number in fixed intervals.
  */
-public class NumberEntryWidget implements ITickingWidget {
+public class NumberEntryWidget extends DrawableHelper {
 
+    private static final Text INVALID_NUMBER = new TranslatableText("gui.appliedenergistics2.validation.InvalidNumber");
+    private static final String NUMBER_LESS_THAN_MIN_VALUE = "gui.appliedenergistics2.validation.NumberLessThanMinValue";
     private static final Text PLUS = Text.of("+");
     private static final Text MINUS = Text.of("-");
+    private static final int TEXT_COLOR_ERROR = 0xFF1900;
+    private static final int TEXT_COLOR_NORMAL = 0xFFFFFF;
 
     private final AEBaseScreen<?> parent;
 
     private final int x;
     private final int y;
 
-    private final NumberBox level;
+    private final ConfirmableTextField textField;
     private final NumberEntryType type;
     private List<ButtonWidget> buttons;
+    private long minValue;
+    private ValidationIcon validationIcon;
 
-    public NumberEntryWidget(AEBaseScreen<?> parent, int x, int y, int width, int height, NumberEntryType type,
+    // Called when the value changes
-            LongConsumer changeListener) {
+    private Runnable onChange;
+
+    // Called when the user presses enter while there's a valid number in the field
+    private Runnable onConfirm;
+
+    private boolean hideValidationIcon;
+
+    public NumberEntryWidget(AEBaseScreen<?> parent, int x, int y, int width, int height, NumberEntryType type) {
         this.parent = parent;
         this.x = x;
         this.y = y;
@@ -45,27 +62,50 @@ public class NumberEntryWidget implements ITickingWidget {
         TextRenderer font = parent.getClient().textRenderer;
         int inputX = parent.getX() + x;
         int inputY = parent.getY() + y;
-        this.level = new NumberBox(font, inputX, inputY, width, font.fontHeight, type.getInputType(), changeListener);
+        this.textField = new ConfirmableTextField(font, inputX, inputY, width, font.fontHeight, LiteralText.EMPTY);
-        this.level.setHasBorder(false);
+        this.textField.setHasBorder(false);
-        this.level.setMaxLength(16);
+        this.textField.setMaxLength(16);
-        this.level.setEditableColor(0xFFFFFF);
+        this.textField.setEditableColor(TEXT_COLOR_NORMAL);
-        this.level.setVisible(true);
+        this.textField.setVisible(true);
-        parent.setInitialFocus(this.level);
+        this.textField.setSelected(true);
+        parent.setInitialFocus(this.textField);
+        this.textField.setChangedListener(text -> {
+            validate();
+            if (onChange != null) {
+                this.onChange.run();
+            }
+        });
+        this.textField.setOnConfirm(() -> {
+            // Only confirm if it's actually valid
+            if (this.onConfirm != null && getLongValue().isPresent()) {
+                this.onConfirm.run();
+            }
+        });
+        validate();
+    }
+
+    public void setOnConfirm(Runnable callback) {
+        this.onConfirm = callback;
+    }
+
+    public void setOnChange(Runnable callback) {
+        this.onChange = callback;
     }
 
     public void setActive(boolean active) {
-        this.level.active = active;
+        this.textField.active = active;
         this.buttons.forEach(b -> b.active = active);
     }
 
     public void setTextFieldBounds(int x, int y, int width) {
-        this.level.x = parent.getX() + x;
+        this.textField.x = parent.getX() + x;
-        this.level.y = parent.getY() + y;
+        this.textField.y = parent.getY() + y;
-        this.level.setWidth(width);
+        this.textField.setWidth(width);
     }
 
     public void setMinValue(long minValue) {
-        this.level.setMinValue(minValue);
+        this.minValue = minValue;
+        validate();
     }
 
     public void addButtons(Consumer<Element> addChildren, Consumer<ButtonWidget> addButton) {
@@ -78,54 +118,116 @@ public class NumberEntryWidget implements ITickingWidget {
         int left = parent.getX() + x;
         int top = parent.getY() + y;
 
-        List<ButtonWidget> buttons = new ArrayList<>(8);
+        List<ButtonWidget> buttons = new ArrayList<>(9);
 
         buttons.add(new ButtonWidget(left, top, 22, 20, makeLabel(PLUS, a), btn -> addQty(a)));
         buttons.add(new ButtonWidget(left + 28, top, 28, 20, makeLabel(PLUS, b), btn -> addQty(b)));
         buttons.add(new ButtonWidget(left + 62, top, 32, 20, makeLabel(PLUS, c), btn -> addQty(c)));
         buttons.add(new ButtonWidget(left + 100, top, 38, 20, makeLabel(PLUS, d), btn -> addQty(d)));
 
+        // Need to add these now for sensible tab-order
+        buttons.forEach(addButton);
+
         // Placing this here will give a sensible tab order
-        addChildren.accept(this.level);
+        addChildren.accept(this.textField);
 
         buttons.add(new ButtonWidget(left, top + 42, 22, 20, makeLabel(MINUS, a), btn -> addQty(-a)));
         buttons.add(new ButtonWidget(left + 28, top + 42, 28, 20, makeLabel(MINUS, b), btn -> addQty(-b)));
         buttons.add(new ButtonWidget(left + 62, top + 42, 32, 20, makeLabel(MINUS, c), btn -> addQty(-c)));
         buttons.add(new ButtonWidget(left + 100, top + 42, 38, 20, makeLabel(MINUS, d), btn -> addQty(-d)));
 
+        // This element is not focusable
+        if (!hideValidationIcon) {
+            this.validationIcon = new ValidationIcon(left + 104, top + 27);
+            buttons.add(this.validationIcon);
+        }
+
+        // Add the rest to the tab order
+        buttons.subList(4, buttons.size()).forEach(addButton);
+
         this.buttons = buttons;
-        this.buttons.forEach(addButton);
+
+        // we need to re-validate because the icon may now be present and needs it's
+        // initial state
+        this.validate();
     }
 
-    private void addQty(final long i) {
+    /**
-        long currentValue = this.level.getValue();
+     * Returns the integer value currently in the text-field, if it is a valid
-        long minValue = this.level.getMinValue();
+     * number and is within the allowed min/max value.
-        this.level.setText(String.valueOf(Math.max(minValue, currentValue + i)));
+     */
+    public OptionalInt getIntValue() {
+        String text = textField.getText().trim();
+        try {
+            int value = Integer.parseInt(text, 10);
+            if (value < minValue) {
+                return OptionalInt.empty();
+            }
+            return OptionalInt.of(value);
+        } catch (NumberFormatException ignored) {
+            return OptionalInt.empty();
+        }
     }
 
-    public void render(MatrixStack matrices, int mouseX, int mouseY, float partialTicks) {
+    /**
-        this.level.render(matrices, mouseX, mouseY, partialTicks);
+     * Returns the long value currently in the text-field, if it is a valid number
-    }
+     * and is within the allowed min/max value.
-
+     */
-    public void setValue(long value, boolean skipNotify) {
+    public OptionalLong getLongValue() {
-        this.level.setValue(value, skipNotify);
+        String text = textField.getText().trim();
+        try {
+            long value = Long.parseLong(text, 10);
+            if (value < minValue) {
+                return OptionalLong.empty();
+            }
+            return OptionalLong.of(value);
+        } catch (NumberFormatException ignored) {
+            return OptionalLong.empty();
+        }
     }
 
     public void setValue(long value) {
-        setValue(value, false);
+        this.textField.setText(String.valueOf(Math.max(minValue, value)));
+        this.textField.setCursorToEnd();
+        this.textField.setSelectionStart(0);
+        validate();
     }
 
-    public long getValue() {
+    private void addQty(final long i) {
-        return level.getValue();
+        getLongValue().ifPresent(currentValue -> setValue(currentValue + i));
     }
 
-    @Override
+    public void render(MatrixStack matrices, int mouseX, int mouseY, float partialTicks) {
-    public void tick() {
+        this.textField.render(matrices, mouseX, mouseY, partialTicks);
-        this.level.tick();
+    }
+
+    private void validate() {
+        List<Text> validationErrors = new ArrayList<>();
+
+        String text = textField.getText().trim();
+        try {
+            long value = Long.parseLong(text, 10);
+            if (value < minValue) {
+                validationErrors.add(new TranslatableText(NUMBER_LESS_THAN_MIN_VALUE, minValue));
+            }
+        } catch (NumberFormatException ignored) {
+            validationErrors.add(INVALID_NUMBER);
+        }
+
+        boolean valid = validationErrors.isEmpty();
+        this.textField.setEditableColor(valid ? TEXT_COLOR_NORMAL : TEXT_COLOR_ERROR);
+        if (this.validationIcon != null) {
+            this.validationIcon.setValid(valid);
+            this.validationIcon.setTooltip(validationErrors);
+        }
     }
 
     private Text makeLabel(Text prefix, int amount) {
         return prefix.copy().append(String.valueOf(amount));
     }
 
+    public void setHideValidationIcon(boolean hideValidationIcon) {
+        this.hideValidationIcon = hideValidationIcon;
+    }
+
 }

src/main/java/appeng/client/gui/implementations/PriorityScreen.java

@@ -18,6 +18,8 @@
 
 package appeng.client.gui.implementations;
 
+import java.util.OptionalInt;
+
 import net.minecraft.client.util.math.MatrixStack;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.text.Text;
@@ -26,8 +28,6 @@ import appeng.client.gui.AEBaseScreen;
 import appeng.client.gui.NumberEntryType;
 import appeng.container.implementations.PriorityContainer;
 import appeng.core.localization.GuiText;
-import appeng.core.sync.network.NetworkHandler;
-import appeng.core.sync.packets.ConfigValuePacket;
 
 public class PriorityScreen extends AEBaseScreen<PriorityContainer> {
 
@@ -38,24 +38,38 @@ public class PriorityScreen extends AEBaseScreen<PriorityContainer> {
     public PriorityScreen(PriorityContainer container, PlayerInventory playerInventory, Text title) {
         super(container, playerInventory, title);
         this.subGui = new AESubScreen(this, container.getPriorityHost());
+
+        // This is the effective size of the background image
+        backgroundWidth = 175;
+        backgroundHeight = 128;
     }
 
     @Override
     public void init() {
         super.init();
 
-        this.priority = new NumberEntryWidget(this, 20, 30, 138, 62, NumberEntryType.PRIORITY, this::onPriorityChange);
+        this.priority = new NumberEntryWidget(this, 20, 30, 138, 62, NumberEntryType.PRIORITY);
         this.priority.setTextFieldBounds(62, 57, 50);
         this.priority.setMinValue(Integer.MIN_VALUE);
-        handler.setTextField(this.priority);
+        this.priority.setValue(this.handler.getPriorityValue());
         this.priority.addButtons(children::add, this::addButton);
 
         this.subGui.addBackButton(this::addButton, 154, 0);
+
+        this.priority.setOnChange(this::savePriority);
+        this.priority.setOnConfirm(() -> {
+            savePriority();
+            this.subGui.goBack();
+        });
+
+        changeFocus(true);
     }
 
-    private void onPriorityChange(long priority) {
+    private void savePriority() {
-        NetworkHandler.instance()
+        OptionalInt priority = this.priority.getIntValue();
-                .sendToServer(new ConfigValuePacket("PriorityHost.Priority", String.valueOf(priority)));
+        if (priority.isPresent()) {
+            handler.setPriority(priority.getAsInt());
+        }
     }
 
     @Override
@@ -66,13 +80,10 @@ public class PriorityScreen extends AEBaseScreen<PriorityContainer> {
     @Override
     public void drawBG(MatrixStack matrices, final int offsetX, final int offsetY, final int mouseX, final int mouseY,
             float partialTicks) {
-        this.bindTexture(getBackground());
+        this.bindTexture("guis/priority.png");
         drawTexture(matrices, offsetX, offsetY, 0, 0, this.backgroundWidth, this.backgroundHeight);
 
         this.priority.render(matrices, mouseX, mouseY, partialTicks);
     }
 
-    protected String getBackground() {
-        return "guis/priority.png";
-    }
 }

src/main/java/appeng/client/gui/widgets/ConfirmableTextField.java

@@ -0,0 +1,51 @@
+/*
+ * This file is part of Applied Energistics 2.
+ * Copyright (c) 2013 - 2015, AlgorithmX2, All rights reserved.
+ *
+ * Applied Energistics 2 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Applied Energistics 2 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
+ */
+
+package appeng.client.gui.widgets;
+
+import org.lwjgl.glfw.GLFW;
+
+import net.minecraft.client.font.TextRenderer;
+import net.minecraft.client.gui.widget.TextFieldWidget;
+import net.minecraft.text.Text;
+
+public class ConfirmableTextField extends TextFieldWidget {
+
+    private Runnable onConfirm;
+
+    public ConfirmableTextField(TextRenderer fontRenderer, int x, int y, int width, int height, Text text) {
+        super(fontRenderer, x, y, width, height, text);
+    }
+
+    @Override
+    public boolean keyPressed(int keyCode, int scanCode, int modifiers) {
+        if (isActive() && (keyCode == GLFW.GLFW_KEY_ENTER || keyCode == GLFW.GLFW_KEY_KP_ENTER)) {
+            if (this.onConfirm != null) {
+                this.onConfirm.run();
+            }
+            return true;
+        }
+
+        return super.keyPressed(keyCode, scanCode, modifiers);
+    }
+
+    public void setOnConfirm(Runnable onConfirm) {
+        this.onConfirm = onConfirm;
+    }
+
+}

src/main/java/appeng/client/gui/widgets/EventRepeater.java

@@ -0,0 +1,96 @@
+/*
+ * This file is part of Applied Energistics 2.
+ * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
+ *
+ * Applied Energistics 2 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Applied Energistics 2 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
+ */
+
+package appeng.client.gui.widgets;
+
+import java.time.Duration;
+
+/**
+ * This class can be used to implement repeating events such as holding down a
+ * button to fire an event repeatedly while the button is still being held, or
+ * repeatedly scrolling down a page, while the mouse is held down on the
+ * scrollbar.
+ */
+public class EventRepeater {
+
+    /**
+     * -1 if no repeat event is scheduled. Otherwise contains the
+     * {@link System#nanoTime()} at which the next event should occur.
+     */
+    private long nextEventTime = -1;
+
+    private EventCallback eventCallback = null;
+
+    private final long eventDelay; // In nanoseconds
+
+    private final long eventInterval; // In nanoseconds
+
+    public EventRepeater(Duration delay, Duration interval) {
+        this.eventDelay = delay.toNanos();
+        this.eventInterval = interval.toNanos();
+    }
+
+    public void tick() {
+        if (this.eventCallback == null) {
+            return; // No event scheduled
+        }
+
+        // Use nanoTime here because it is monotonically increasing, while
+        // System.currentTimeMillis is not
+        long nanoTime = System.nanoTime();
+        if (nanoTime < this.nextEventTime) {
+            return; // Event time not reached
+        }
+
+        // Before triggering, recompute the next event, since
+        // the event callback itself may reschedule/cancel, and
+        // we should not overwrite that
+        this.nextEventTime = nanoTime + this.eventInterval;
+        this.eventCallback.trigger();
+    }
+
+    /**
+     * Schedule the given callback to be called after a given initial delay, and
+     * then after the given interval repeatedly.
+     *
+     * <p>
+     * Replaces any previously queued callback.
+     */
+    public void repeat(EventCallback callback) {
+        long time = System.nanoTime();
+        this.eventCallback = callback;
+        this.nextEventTime = time + eventDelay;
+    }
+
+    public boolean isRepeating() {
+        return this.eventCallback != null;
+    }
+
+    /**
+     * Stop repeating the event.
+     */
+    public void stop() {
+        this.eventCallback = null;
+    }
+
+    @FunctionalInterface
+    public interface EventCallback {
+        void trigger();
+    }
+
+}

src/main/java/appeng/client/gui/widgets/IconButton.java

@@ -22,6 +22,7 @@ import com.mojang.blaze3d.systems.RenderSystem;
 
 import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.gui.widget.ButtonWidget;
+import net.minecraft.client.sound.SoundManager;
 import net.minecraft.client.texture.TextureManager;
 import net.minecraft.client.util.math.MatrixStack;
 import net.minecraft.text.LiteralText;
@@ -33,6 +34,10 @@ public abstract class IconButton extends ButtonWidget implements ITooltip {
 
     private boolean halfSize = false;
 
+    private boolean disableClickSound = false;
+
+    private boolean disableBackground = false;
+
     public IconButton(final int x, final int y, PressAction onPress) {
         super(x, y, 16, 16, LiteralText.EMPTY, onPress);
     }
@@ -42,6 +47,13 @@ public abstract class IconButton extends ButtonWidget implements ITooltip {
         this.active = vis;
     }
 
+    @Override
+    public void playDownSound(SoundManager soundManager) {
+        if (!disableClickSound) {
+            super.playDownSound(soundManager);
+        }
+    }
+
     @Override
     public void renderButton(MatrixStack matrices, final int mouseX, final int mouseY, float partial) {
 
@@ -72,7 +84,9 @@ public abstract class IconButton extends ButtonWidget implements ITooltip {
                 final int uv_y = iconIndex / 16;
                 final int uv_x = iconIndex - uv_y * 16;
 
-                drawTexture(matrices, 0, 0, 256 - 16, 256 - 16, 16, 16);
+                if (!disableBackground) {
+                    drawTexture(matrices, 0, 0, 256 - 16, 256 - 16, 16, 16);
+                }
                 drawTexture(matrices, 0, 0, uv_x * 16, uv_y * 16, 16, 16);
                 RenderSystem.popMatrix();
             } else {
@@ -85,12 +99,18 @@ public abstract class IconButton extends ButtonWidget implements ITooltip {
                 final int uv_y = iconIndex / 16;
                 final int uv_x = iconIndex - uv_y * 16;
 
-                drawTexture(matrices, this.x, this.y, 256 - 16, 256 - 16, 16, 16);
+                if (!disableBackground) {
+                    drawTexture(matrices, this.x, this.y, 256 - 16, 256 - 16, 16, 16);
+                }
                 drawTexture(matrices, this.x, this.y, uv_x * 16, uv_y * 16, 16, 16);
             }
             RenderSystem.enableDepthTest();
+            RenderSystem.color4f(1.0f, 1.0f, 1.0f, 1.0f);
+
+            if (isHovered()) {
+                renderToolTip(matrices, mouseX, mouseY);
+            }
         }
-        RenderSystem.color4f(1.0f, 1.0f, 1.0f, 1.0f);
     }
 
     protected abstract int getIconIndex();
@@ -133,4 +153,20 @@ public abstract class IconButton extends ButtonWidget implements ITooltip {
         this.halfSize = halfSize;
     }
 
+    public boolean isDisableClickSound() {
+        return disableClickSound;
+    }
+
+    public void setDisableClickSound(boolean disableClickSound) {
+        this.disableClickSound = disableClickSound;
+    }
+
+    public boolean isDisableBackground() {
+        return disableBackground;
+    }
+
+    public void setDisableBackground(boolean disableBackground) {
+        this.disableBackground = disableBackground;
+    }
+
 }

src/main/java/appeng/client/gui/widgets/NumberBox.java

@@ -1,153 +0,0 @@
-/*
- * This file is part of Applied Energistics 2.
- * Copyright (c) 2013 - 2015, AlgorithmX2, All rights reserved.
- *
- * Applied Energistics 2 is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Applied Energistics 2 is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
- */
-
-package appeng.client.gui.widgets;
-
-import java.util.function.LongConsumer;
-
-import net.minecraft.client.font.TextRenderer;
-import net.minecraft.client.gui.widget.TextFieldWidget;
-import net.minecraft.text.LiteralText;
-
-public class NumberBox extends TextFieldWidget {
-
-    private final LongConsumer changeListener;
-
-    private long lastValue;
-
-    private long minValue = 0;
-
-    private long maxValue;
-
-    public NumberBox(final TextRenderer fontRenderer, final int x, final int y, final int width, final int height,
-            final Class<?> type, LongConsumer changeListener) {
-        super(fontRenderer, x, y, width, height, new LiteralText("0"));
-        this.setText("0");
-        setChangedListener(this::handleTextChanged);
-        this.lastValue = 0;
-        this.changeListener = changeListener;
-        if (type == int.class || type == Integer.class) {
-            maxValue = Integer.MAX_VALUE;
-        } else {
-            maxValue = Long.MAX_VALUE;
-        }
-    }
-
-    // NOTE: This method MUST NOT BE NAMED like a method in the superclass because
-    // of a ForgeGradle remapping bug
-    // since it'll not remap this method's name, but it will remap the name of the
-    // method reference above.
-    private void handleTextChanged(String text) {
-        if (text.isEmpty()) {
-            setText("0"); // Will call onTextChanged recursively
-            return;
-        }
-
-        boolean canBeNegative = canBeNegative();
-        if (canBeNegative && text.equals("-")) {
-            // Allow this as a special case to make typing in a negative number easier
-            return;
-        }
-
-        StringBuilder sanitized = new StringBuilder(text);
-        boolean encounteredNonZero = false;
-        for (int i = 0; i < sanitized.length(); i++) {
-            char ch = sanitized.charAt(i);
-            if (canBeNegative && i == 0 && ch == '-') {
-                continue; // Allow leading minus sign
-            }
-            if (ch >= '1' && ch <= '9') {
-                encounteredNonZero = true;
-                continue;
-            }
-            if (ch != '0' || !encounteredNonZero) {
-                sanitized.deleteCharAt(i--);
-            }
-        }
-        if (sanitized.length() == 0) {
-            sanitized.append('0');
-        }
-        String sanitizedStr = sanitized.toString();
-        if (!sanitizedStr.equals(text)) {
-            setText(sanitizedStr); // Will call onTextChanged recursively
-            return;
-        }
-        if (getValue() < minValue) {
-            setText(String.valueOf(minValue)); // Will call onTextChanged recursively
-            return;
-        }
-        if (getValue() > maxValue) {
-            setText(String.valueOf(maxValue)); // Will call onTextChanged recursively
-            return;
-        }
-
-        reportChange();
-    }
-
-    private void reportChange() {
-        long value = getValue();
-        if (value != lastValue) {
-            lastValue = value;
-            changeListener.accept(value);
-        }
-    }
-
-    public void setValue(long value, boolean skipNotify) {
-        // This check avoid changing the cursor position needlessly
-        if (value == this.getValue()) {
-            return;
-        }
-
-        if (skipNotify) {
-            lastValue = value;
-        }
-        setText(String.valueOf(value));
-    }
-
-    public long getValue() {
-        if (getText().equals("-") && canBeNegative()) {
-            return lastValue; // Allow this as a special case to type in a negative number more easily
-        }
-
-        return Long.parseLong(getText());
-    }
-
-    @Override
-    public boolean keyPressed(int p_keyPressed_1_, int p_keyPressed_2_, int p_keyPressed_3_) {
-        if (super.keyPressed(p_keyPressed_1_, p_keyPressed_2_, p_keyPressed_3_)) {
-            return true;
-        }
-
-        // Swallow key presses for numbers because they would otherwise trigger the
-        // hotbar swapping unintentionally
-        return isFocused() && p_keyPressed_1_ >= '0' && p_keyPressed_1_ <= '9';
-    }
-
-    public void setMinValue(long minValue) {
-        this.minValue = minValue;
-    }
-
-    public long getMinValue() {
-        return minValue;
-    }
-
-    private boolean canBeNegative() {
-        return minValue < 0;
-    }
-
-}

src/main/java/appeng/client/gui/widgets/Scrollbar.java

@@ -18,18 +18,74 @@
 
 package appeng.client.gui.widgets;
 
-import com.mojang.blaze3d.systems.RenderSystem;
+import java.time.Duration;
 
 import net.minecraft.client.gui.DrawableHelper;
+import net.minecraft.client.util.Rect2i;
 import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.math.MathHelper;
 
 import appeng.client.gui.AEBaseScreen;
 
-public class Scrollbar implements IScrollSource {
+/**
+ * Implements a vertical scrollbar using Vanilla's scrollbar handle texture from
+ * the creative tab.
+ * <p>
+ * It is expected that the background of the UI contains a pre-baked scrollbar
+ * track border, and that the exact rectangle of that track is set on this
+ * object via {@link #setLeft(int)}, {@link #setTop(int)} and
+ * {@link #setHeight(int)}. While the width of the track can also be set, the
+ * drawn handle will use vanilla's sprite width (see {@link #HANDLE_WIDTH}.
+ */
+public class Scrollbar extends DrawableHelper implements IScrollSource {
 
+    /**
+     * Width of the scrollbar handle sprite in the source texture.
+     */
+    private static final int HANDLE_WIDTH = 12;
+
+    /**
+     * Height of the scrollbar handle sprite in the source texture.
+     */
+    private static final int HANDLE_HEIGHT = 15;
+
+    /**
+     * Texture containing the scrollbar handle sprites.
+     */
+    private static final Identifier TEXTURE = new Identifier("minecraft",
+            "textures/gui/container/creative_inventory/tabs.png");
+
+    /**
+     * Rectangle in the source texture that contains the sprite for an enabled
+     * handle.
+     */
+    private static final Rect2i ENABLED = new Rect2i(232, 0, HANDLE_WIDTH, HANDLE_HEIGHT);
+
+    /**
+     * Rectangle in the source texture that contains the sprite for a disabled
+     * handle.
+     */
+    private static final Rect2i DISABLED = new Rect2i(232 + HANDLE_WIDTH, 0, HANDLE_WIDTH, HANDLE_HEIGHT);
+
+    /**
+     * The screen x-coordinate of the scrollbar's inner track.
+     */
     private int displayX = 0;
+
+    /**
+     * The screen y-coordinate of the scrollbar's inner track.
+     */
     private int displayY = 0;
-    private int width = 12;
+
+    /**
+     * The inner width of the scrollbar track.
+     */
+    private int width = HANDLE_WIDTH;
+
+    /**
+     * The inner height of the scrollbar track.
+     */
     private int height = 16;
     private int pageSize = 1;
 
@@ -37,20 +93,58 @@ public class Scrollbar implements IScrollSource {
     private int minScroll = 0;
     private int currentScroll = 0;
 
-    private final DrawableHelper drawable = new DrawableHelper() {
+    /**
-    };
+     * True if the scrollbar's handle is currently being dragged.
+     */
+    private boolean dragging;
+    /**
+     * The y-coordinate relative to the upper edge of the scrollbar handle, where
+     * the user pressed the mouse button to drag. While dragging, this is applied as
+     * an offset to the effective scrollbar position.
+     */
+    private int dragYOffset;
 
+    private final EventRepeater eventRepeater = new EventRepeater(Duration.ofMillis(250), Duration.ofMillis(150));
+
+    /**
+     * Draws the handle of the scrollbar.
+     * <p>
+     * The GUI is assumed to already contain a prebaked scrollbar track in its
+     * background.
+     */
     public void draw(MatrixStack matrices, final AEBaseScreen<?> g) {
-        g.bindTexture("minecraft", "gui/container/creative_inventory/tabs.png");
+        setZOffset(g.getZOffset());
-        RenderSystem.color4f(1.0f, 1.0f, 1.0f, 1.0f);
 
-        drawable.setZOffset(g.getZOffset());
+        // Draw the track (nice for debugging)
+        // fill(matrices, displayX, displayY, this.displayX + width, this.displayY +
+        // height, 0xffff0000);
+
+        g.bindTexture(TEXTURE);
+
+        int yOffset;
+        Rect2i sourceRect;
         if (this.getRange() == 0) {
-            drawable.drawTexture(matrices, this.displayX, this.displayY, 232 + this.width, 0, this.width, 15);
+            yOffset = 0;
+            sourceRect = DISABLED;
         } else {
-            final int offset = (this.currentScroll - this.minScroll) * (this.height - 15) / this.getRange();
+            yOffset = getHandleYOffset();
-            drawable.drawTexture(matrices, this.displayX, offset + this.displayY, 232, 0, this.width, 15);
+            sourceRect = ENABLED;
         }
+
+        drawTexture(matrices, this.displayX, this.displayY + yOffset, sourceRect.getX(), sourceRect.getY(),
+                sourceRect.getWidth(), sourceRect.getHeight());
+    }
+
+    /**
+     * Returns the y-position of the scrollbar handle in relation to the upper edge
+     * of the scrollbar's track.
+     */
+    private int getHandleYOffset() {
+        if (getRange() == 0) {
+            return 0;
+        }
+        int availableHeight = this.height - HANDLE_HEIGHT;
+        return (this.currentScroll - this.minScroll) * availableHeight / this.getRange();
     }
 
     private int getRange() {
@@ -114,24 +208,96 @@ public class Scrollbar implements IScrollSource {
         return this.currentScroll;
     }
 
-    public void click(final double x, final double y) {
+    public boolean mouseDown(double x, double y) {
-        if (this.getRange() == 0) {
+        this.dragging = false;
+
+        // Clicks to the left or right of the scrollbar don't do anything
+        if (x < displayX || x >= displayX + width) {
+            return false;
+        }
+
+        // Clicks to the top or bottom don't do anything either
+        int relY = (int) Math.round(y - displayY);
+        if (relY < 0 || relY >= height) {
+            return false;
+        }
+
+        // Do nothing when there's no range, but swallow the event
+        if (getRange() == 0) {
+            return true;
+        }
+
+        int handleYOffset = getHandleYOffset();
+
+        if (relY < handleYOffset) {
+            // Clicks above the handle will page up, repeatedly
+            pageUp();
+            eventRepeater.repeat(this::pageUp);
+
+        } else if (relY < handleYOffset + HANDLE_HEIGHT) {
+            // Clicks on the handle will initiate dragging it
+            this.dragging = true;
+            this.dragYOffset = relY - handleYOffset;
+        } else {
+            // Clicks below the handle will page down, repeatedly
+            pageDown();
+            eventRepeater.repeat(this::pageDown);
+        }
+
+        return true;
+    }
+
+    public boolean mouseUp(double x, double y) {
+        this.dragging = false;
+        this.eventRepeater.stop();
+        return false;
+    }
+
+    public void mouseDragged(double x, double y) {
+        if (this.getRange() == 0 || !this.dragging || this.eventRepeater.isRepeating()) {
             return;
         }
 
-        if (x > this.displayX && x <= this.displayX + this.width) {
+        // Compute the position of the mouse (adjusted for where it grabbed the handle,
-            if (y > this.displayY && y <= this.displayY + this.height) {
+        // so as if it grabbed
-                this.currentScroll = (int) (y - this.displayY);
+        // the upper edge of it) within the scrollable area of the track (minus the
-                this.currentScroll = this.minScroll + ((this.currentScroll * 2 * this.getRange() / this.height));
+        // handle height).
-                this.currentScroll = (this.currentScroll + 1) >> 1;
+        double handleUpperEdgeY = y - this.displayY - this.dragYOffset;
-                this.applyRange();
+        double availableHeight = this.height - HANDLE_HEIGHT;
-            }
+        double position = MathHelper.clamp(handleUpperEdgeY / availableHeight, 0.0, 1.0);
-        }
+
+        this.currentScroll = this.minScroll + (int) Math.round(position * this.getRange());
+        this.applyRange();
     }
 
     public void wheel(double delta) {
+        // Do nothing when there's no range
+        if (getRange() == 0) {
+            return;
+        }
+
         delta = Math.max(Math.min(-delta, 1), -1);
         this.currentScroll += delta * this.pageSize;
         this.applyRange();
     }
+
+    /**
+     * Ticks the scrollbar for the purposes of input-repeats (since mouse-downs are
+     * not repeat-triggered), used to repeatedly page-up or page-down when the mouse
+     * is held in the area above or below the scrollbar handle.
+     */
+    public void tick() {
+        this.eventRepeater.tick();
+    }
+
+    private void pageUp() {
+        this.currentScroll -= this.pageSize;
+        this.applyRange();
+    }
+
+    private void pageDown() {
+        this.currentScroll += this.pageSize;
+        this.applyRange();
+    }
+
 }

src/main/java/appeng/client/gui/widgets/SettingToggleButton.java

@@ -25,6 +25,7 @@ import java.util.function.Predicate;
 import java.util.regex.Pattern;
 
 import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.screen.Screen;
 import net.minecraft.client.gui.widget.ButtonWidget;
 import net.minecraft.text.LiteralText;
 import net.minecraft.text.Text;
@@ -47,6 +48,7 @@ import appeng.api.config.StorageFilter;
 import appeng.api.config.TerminalStyle;
 import appeng.api.config.ViewItems;
 import appeng.api.config.YesNo;
+import appeng.client.gui.AEBaseScreen;
 import appeng.core.localization.ButtonToolTips;
 import appeng.util.EnumCycler;
 
@@ -89,9 +91,11 @@ public class SettingToggleButton<T extends Enum<T>> extends IconButton {
             registerApp(16 * 7, Settings.CONDENSER_OUTPUT, CondenserOutput.TRASH, ButtonToolTips.CondenserOutput,
                     ButtonToolTips.Trash);
             registerApp(16 * 7 + 1, Settings.CONDENSER_OUTPUT, CondenserOutput.MATTER_BALLS,
-                    ButtonToolTips.CondenserOutput, ButtonToolTips.MatterBalls);
+                    ButtonToolTips.CondenserOutput,
+                    ButtonToolTips.MatterBalls.text(CondenserOutput.MATTER_BALLS.requiredPower));
             registerApp(16 * 7 + 2, Settings.CONDENSER_OUTPUT, CondenserOutput.SINGULARITY,
-                    ButtonToolTips.CondenserOutput, ButtonToolTips.Singularity);
+                    ButtonToolTips.CondenserOutput,
+                    ButtonToolTips.Singularity.text(CondenserOutput.SINGULARITY.requiredPower));
 
             registerApp(16 * 9 + 1, Settings.ACCESS, AccessRestriction.READ, ButtonToolTips.IOMode,
                     ButtonToolTips.Read);
@@ -230,7 +234,13 @@ public class SettingToggleButton<T extends Enum<T>> extends IconButton {
     }
 
     private void triggerPress() {
-        boolean backwards = MinecraftClient.getInstance().mouse.wasRightButtonClicked();
+        boolean backwards = false;
+        // This isn't great, but we don't get any information about right-clicks
+        // otherwise
+        Screen currentScreen = MinecraftClient.getInstance().currentScreen;
+        if (currentScreen instanceof AEBaseScreen) {
+            backwards = ((AEBaseScreen<?>) currentScreen).isHandlingRightClick();
+        }
         onPress.handle(this, backwards);
     }
 

src/main/java/appeng/client/gui/widgets/TabButton.java

@@ -31,7 +31,7 @@ import net.minecraft.util.Identifier;
 public class TabButton extends ButtonWidget implements ITooltip {
     public static final Identifier TEXTURE_STATES = new Identifier("appliedenergistics2", "textures/guis/states.png");
     private final ItemRenderer itemRenderer;
-    private int hideEdge = 0;
+    private boolean hideEdge;
     private int myIcon = -1;
     private ItemStack myItem;
 
@@ -69,14 +69,17 @@ public class TabButton extends ButtonWidget implements ITooltip {
 
             RenderSystem.enableAlphaTest();
 
-            int uv_x = (this.hideEdge > 0 ? 11 : 13);
+            // Selects the button border from the sprite-sheet, where each type occupies a
+            // 2x2 slot
+            int uv_x = 8 + (this.hideEdge ? 0 : 2);
+            int uv_y = 12 + (this.isFocused() ? 2 : 0);
 
-            final int offsetX = this.hideEdge > 0 ? 1 : 0;
+            final int offsetX = this.hideEdge ? 1 : 0;
 
-            drawTexture(matrices, this.x, this.y, uv_x * 16, 0, 25, 22);
+            drawTexture(matrices, this.x, this.y, uv_x * 16, uv_y * 16, 25, 22);
 
             if (this.myIcon >= 0) {
-                final int uv_y = this.myIcon / 16;
+                uv_y = this.myIcon / 16;
                 uv_x = this.myIcon - uv_y * 16;
 
                 drawTexture(matrices, offsetX + this.x + 3, this.y + 3, uv_x * 16, uv_y * 16, 16, 16);
@@ -122,11 +125,11 @@ public class TabButton extends ButtonWidget implements ITooltip {
         return this.visible;
     }
 
-    public int getHideEdge() {
+    public boolean getHideEdge() {
         return this.hideEdge;
     }
 
-    public void setHideEdge(final int hideEdge) {
+    public void setHideEdge(final boolean hideEdge) {
         this.hideEdge = hideEdge;
     }
 }

src/main/java/appeng/client/gui/widgets/ValidationIcon.java

@@ -0,0 +1,64 @@
+package appeng.client.gui.widgets;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.text.Text;
+
+/**
+ * Displays a small icon that shows validation errors for some input control.
+ */
+public class ValidationIcon extends IconButton {
+
+    private final List<Text> tooltip = new ArrayList<>();
+
+    private boolean valid;
+
+    public ValidationIcon(int x, int y) {
+        super(x, y, btn -> {
+        });
+        setDisableBackground(true);
+        setDisableClickSound(true);
+        setHalfSize(true);
+    }
+
+    public void setValid(boolean valid) {
+        setVisibility(!valid);
+        if (valid) {
+            this.tooltip.clear();
+        }
+    }
+
+    public void setTooltip(List<Text> lines) {
+        this.tooltip.clear();
+        this.tooltip.addAll(lines);
+    }
+
+    @Override
+    protected int getIconIndex() {
+        return 16 * 8;
+    }
+
+    @Override
+    public boolean changeFocus(boolean flag) {
+        return false; // Cannot focus this element
+    }
+
+    @Override
+    public void renderToolTip(MatrixStack matrices, int mouseX, int mouseY) {
+        if (this.tooltip.isEmpty()) {
+            return;
+        }
+
+        MinecraftClient client = MinecraftClient.getInstance();
+        Screen screen = client.currentScreen;
+        if (screen == null) {
+            return;
+        }
+
+        screen.renderTooltip(matrices, this.tooltip, x, y);
+    }
+}

src/main/java/appeng/client/render/cablebus/CableBuilder.java

@@ -104,7 +104,7 @@ class CableBuilder {
                 throw new IllegalStateException("Cable type " + cableType + " does not support connections.");
         }
 
-        return new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+        return new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
                 new Identifier(AppEng.MOD_ID, textureFolder + color.name().toLowerCase(Locale.ROOT)));
     }
 

src/main/java/appeng/client/render/cablebus/CableCoreType.java

@@ -74,7 +74,7 @@ public enum CableCoreType {
     }
 
     public SpriteIdentifier getTexture(AEColor color) {
-        return new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+        return new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
                 new Identifier(AppEng.MOD_ID, this.textureFolder + "/" + color.name().toLowerCase(Locale.ROOT)));
     }
 

src/main/java/appeng/client/render/cablebus/P2PTunnelFrequencyModel.java

@@ -18,7 +18,7 @@ import appeng.core.AppEng;
 
 public class P2PTunnelFrequencyModel implements BasicUnbakedModel {
 
-    private static final SpriteIdentifier TEXTURE = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "part/p2p_tunnel_frequency"));
 
     @Nullable

src/main/java/appeng/client/render/cablebus/SmartCableTextures.java

@@ -47,7 +47,8 @@ public class SmartCableTextures {
                     new Identifier(AppEng.MOD_ID, "part/cable/smart/channels_12"), //
                     new Identifier(AppEng.MOD_ID, "part/cable/smart/channels_13"), //
                     new Identifier(AppEng.MOD_ID, "part/cable/smart/channels_14")//
-            }).map(e -> new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX, e)).toArray(SpriteIdentifier[]::new);
+            }).map(e -> new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE, e))
+            .toArray(SpriteIdentifier[]::new);
 
     // Textures used to display channels on smart cables. There's two sets of 5
     // textures each, and

src/main/java/appeng/client/render/crafting/CraftingCubeModel.java

@@ -115,7 +115,7 @@ public class CraftingCubeModel implements BasicUnbakedModel {
     }
 
     private static SpriteIdentifier texture(String name) {
-        return new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+        return new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
                 new Identifier(AppEng.MOD_ID, "block/crafting/" + name));
     }
 }

src/main/java/appeng/client/render/model/BiometricCardModel.java

@@ -25,7 +25,7 @@ import appeng.core.AppEng;
 public class BiometricCardModel implements BasicUnbakedModel {
 
     public static final Identifier MODEL_BASE = new Identifier(AppEng.MOD_ID, "item/biometric_card_base");
-    private static final SpriteIdentifier TEXTURE = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "item/biometric_card_hash"));
 
     @Override

src/main/java/appeng/client/render/model/ColorApplicatorModel.java

@@ -26,11 +26,11 @@ public class ColorApplicatorModel implements BasicUnbakedModel {
 
     private static final Identifier MODEL_BASE = new Identifier(AppEng.MOD_ID, "item/color_applicator_colored");
 
-    private static final SpriteIdentifier TEXTURE_DARK = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_DARK = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "item/color_applicator_tip_dark"));
-    private static final SpriteIdentifier TEXTURE_MEDIUM = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_MEDIUM = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "item/color_applicator_tip_medium"));
-    private static final SpriteIdentifier TEXTURE_BRIGHT = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_BRIGHT = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "item/color_applicator_tip_bright"));
 
     @Override

src/main/java/appeng/client/render/model/GlassBakedModel.java

@@ -62,13 +62,13 @@ class GlassBakedModel implements BakedModel, FabricBakedModel {
     private static final byte[][][] OFFSETS = generateOffsets();
 
     // Alternating textures based on position
-    static final SpriteIdentifier TEXTURE_A = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    static final SpriteIdentifier TEXTURE_A = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier("appliedenergistics2:block/glass/quartz_glass_a"));
-    static final SpriteIdentifier TEXTURE_B = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    static final SpriteIdentifier TEXTURE_B = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier("appliedenergistics2:block/glass/quartz_glass_b"));
-    static final SpriteIdentifier TEXTURE_C = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    static final SpriteIdentifier TEXTURE_C = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier("appliedenergistics2:block/glass/quartz_glass_c"));
-    static final SpriteIdentifier TEXTURE_D = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    static final SpriteIdentifier TEXTURE_D = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier("appliedenergistics2:block/glass/quartz_glass_d"));
 
     // Frame texture
@@ -81,7 +81,7 @@ class GlassBakedModel implements BakedModel, FabricBakedModel {
     private static SpriteIdentifier[] generateTexturesFrame() {
         return IntStream.range(1, 16).mapToObj(Integer::toBinaryString).map(s -> Strings.padStart(s, 4, '0'))
                 .map(s -> new Identifier("appliedenergistics2:block/glass/quartz_glass_frame" + s))
-                .map(rl -> new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX, rl))
+                .map(rl -> new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE, rl))
                 .toArray(SpriteIdentifier[]::new);
     }
 

src/main/java/appeng/client/render/model/MemoryCardModel.java

@@ -25,7 +25,7 @@ import appeng.core.AppEng;
 public class MemoryCardModel implements BasicUnbakedModel {
 
     public static final Identifier MODEL_BASE = new Identifier(AppEng.MOD_ID, "item/memory_card_base");
-    private static final SpriteIdentifier TEXTURE = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "item/memory_card_hash"));
 
     @Override

src/main/java/appeng/client/render/spatial/SpatialPylonModel.java

@@ -59,7 +59,7 @@ public class SpatialPylonModel implements BasicUnbakedModel {
     }
 
     private static SpriteIdentifier getTexturePath(SpatialPylonTextureType type) {
-        return new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+        return new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
                 new Identifier(AppEng.MOD_ID, "block/spatial_pylon/" + type.name().toLowerCase(Locale.ROOT)));
     }
 

src/main/java/appeng/client/render/tesr/InscriberTESR.java

@@ -38,7 +38,7 @@ public final class InscriberTESR extends BlockEntityRenderer<InscriberBlockEntit
 
     private static final float ITEM_RENDER_SCALE = 1.0f / 1.2f;
 
-    private static final SpriteIdentifier TEXTURE_INSIDE = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEX,
+    private static final SpriteIdentifier TEXTURE_INSIDE = new SpriteIdentifier(SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE,
             new Identifier(AppEng.MOD_ID, "block/inscriber_inside"));
 
     public static final ImmutableList<SpriteIdentifier> SPRITES = ImmutableList.of(TEXTURE_INSIDE);

src/main/java/appeng/container/AEBaseContainer.java

@@ -66,10 +66,8 @@ import appeng.container.slot.PlayerInvSlot;
 import appeng.core.AELog;
 import appeng.core.Api;
 import appeng.core.sync.network.NetworkHandler;
-import appeng.core.sync.packets.ConfigValuePacket;
 import appeng.core.sync.packets.InventoryActionPacket;
 import appeng.core.sync.packets.TargetItemStackPacket;
-import appeng.helpers.ICustomNameObject;
 import appeng.helpers.InventoryAction;
 import appeng.me.helpers.PlayerSource;
 import appeng.mixins.ScreenHandlerListeners;
@@ -88,11 +86,9 @@ public abstract class AEBaseContainer extends ScreenHandler {
     private final IGuiItemObject obj;
     private final HashMap<Integer, SyncData> syncData = new HashMap<>();
     private boolean isContainerValid = true;
-    private String customName;
     private ContainerLocator locator;
     private IMEInventoryHandler<IAEItemStack> cellInv;
     private IEnergySource powerSrc;
-    private boolean sentCustomName;
     private int ticksSinceCheck = 900;
     private IAEItemStack clientRequestedTargetItem = null;
 
@@ -317,9 +313,7 @@ public abstract class AEBaseContainer extends ScreenHandler {
 
     @Override
     public void sendContentUpdates() {
-        this.sendCustomName();
+        if (isServer()) {
-
-        if (Platform.isServer()) {
             if (this.tileEntity != null
                     && this.tileEntity.getWorld().getBlockEntity(this.tileEntity.getPos()) != this.tileEntity) {
                 this.setValidContainer(false);
@@ -886,43 +880,6 @@ public abstract class AEBaseContainer extends ScreenHandler {
         this.sendContentUpdates();
     }
 
-    private void sendCustomName() {
-        // FIXME: Trash this, this is handled by NamedContainerProvider now
-        if (!this.sentCustomName) {
-            this.sentCustomName = true;
-            if (Platform.isServer()) {
-                ICustomNameObject name = null;
-
-                if (this.part instanceof ICustomNameObject) {
-                    name = (ICustomNameObject) this.part;
-                }
-
-                if (this.tileEntity instanceof ICustomNameObject) {
-                    name = (ICustomNameObject) this.tileEntity;
-                }
-
-                if (this.obj instanceof ICustomNameObject) {
-                    name = (ICustomNameObject) this.obj;
-                }
-
-                if (this instanceof ICustomNameObject) {
-                    name = (ICustomNameObject) this;
-                }
-
-                if (name != null) {
-                    if (name.hasCustomInventoryName()) {
-                        this.setCustomName(name.getCustomInventoryName().getString());
-                    }
-
-                    if (this.getCustomName() != null) {
-                        NetworkHandler.instance().sendTo(new ConfigValuePacket("CustomName", this.getCustomName()),
-                                (ServerPlayerEntity) this.getPlayerInventory().player);
-                    }
-                }
-            }
-        }
-    }
-
     public void swapSlotContents(final int slotA, final int slotB) {
         final Slot a = this.getSlot(slotA);
         final Slot b = this.getSlot(slotB);
@@ -1012,14 +969,6 @@ public abstract class AEBaseContainer extends ScreenHandler {
         this.cellInv = cellInv;
     }
 
-    public String getCustomName() {
-        return this.customName;
-    }
-
-    public void setCustomName(final String customName) {
-        this.customName = customName;
-    }
-
     public PlayerInventory getPlayerInventory() {
         return this.invPlayer;
     }
@@ -1048,4 +997,18 @@ public abstract class AEBaseContainer extends ScreenHandler {
         this.powerSrc = powerSrc;
     }
 
+    /**
+     * Returns whether this container instance lives on the client.
+     */
+    protected boolean isClient() {
+        return invPlayer.player.getEntityWorld().isClient();
+    }
+
+    /**
+     * Returns whether this container instance lives on the server.
+     */
+    protected boolean isServer() {
+        return !isClient();
+    }
+
 }

src/main/java/appeng/container/guisync/SyncData.java

@@ -89,6 +89,8 @@ public class SyncData {
                 NetworkHandler.instance().sendTo(new ConfigValuePacket("SyncDat." + this.channel, json),
                         (ServerPlayerEntity) o);
             }
+            this.clientVersion = val;
+            return;
         }
 
         // Types other than Text must be non-null

src/main/java/appeng/container/implementations/CellWorkbenchContainer.java

@@ -50,7 +50,6 @@ import appeng.container.slot.RestrictedInputSlot;
 import appeng.core.Api;
 import appeng.tile.misc.CellWorkbenchBlockEntity;
 import appeng.util.EnumCycler;
-import appeng.util.Platform;
 import appeng.util.helpers.ItemHandlerUtil;
 import appeng.util.inv.WrapperSupplierItemHandler;
 import appeng.util.iterators.NullIterator;
@@ -143,7 +142,7 @@ public class CellWorkbenchContainer extends UpgradeableContainer {
     @Override
     public void sendContentUpdates() {
         final ItemStack is = this.workBench.getInventoryByName("cell").getInvStack(0);
-        if (Platform.isServer()) {
+        if (isServer()) {
             for (final ScreenHandlerListener listener : this.getListeners()) {
                 if (this.prevStack != is) {
                     // if the bars changed an item was probably made, so just send shit!

src/main/java/appeng/container/implementations/CondenserContainer.java

@@ -34,7 +34,6 @@ import appeng.container.interfaces.IProgressProvider;
 import appeng.container.slot.OutputSlot;
 import appeng.container.slot.RestrictedInputSlot;
 import appeng.tile.misc.CondenserBlockEntity;
-import appeng.util.Platform;
 
 public class CondenserContainer extends AEBaseContainer implements IProgressProvider {
 
@@ -76,13 +75,13 @@ public class CondenserContainer extends AEBaseContainer implements IProgressProv
 
     @Override
     public void sendContentUpdates() {
-        if (Platform.isServer()) {
+        if (isServer()) {
             final double maxStorage = this.condenser.getStorage();
             final double requiredEnergy = this.condenser.getRequiredPower();
 
             this.requiredEnergy = requiredEnergy == 0 ? (int) maxStorage : (int) Math.min(requiredEnergy, maxStorage);
             this.storedPower = (int) this.condenser.getStoredPower();
-            this.setOutput((CondenserOutput) this.condenser.getConfigManager().getSetting(Settings.CONDENSER_OUTPUT));
+            this.output = (CondenserOutput) this.condenser.getConfigManager().getSetting(Settings.CONDENSER_OUTPUT);
         }
 
         super.sendContentUpdates();
@@ -102,7 +101,4 @@ public class CondenserContainer extends AEBaseContainer implements IProgressProv
         return this.output;
     }
 
-    private void setOutput(final CondenserOutput output) {
-        this.output = output;
-    }
 }

src/main/java/appeng/container/implementations/ContainerHelper.java

@@ -1,5 +1,7 @@
 package appeng.container.implementations;
 
+import java.util.function.Function;
+
 import javax.annotation.Nullable;
 
 import net.fabricmc.fabric.api.screenhandler.v1.ExtendedScreenHandlerFactory;
@@ -12,9 +14,7 @@ import net.minecraft.screen.ScreenHandler;
 import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.text.LiteralText;
 import net.minecraft.text.Text;
-import net.minecraft.text.TranslatableText;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.World;
 
 import appeng.api.config.SecurityPermissions;
 import appeng.api.features.IWirelessTermHandler;
@@ -44,6 +44,8 @@ public final class ContainerHelper<C extends AEBaseContainer, I> {
 
     private final SecurityPermissions requiredPermission;
 
+    private Function<I, Text> containerTitleStrategy = this::getDefaultContainerTitle;
+
     public ContainerHelper(ContainerFactory<C, I> factory, Class<I> interfaceClass) {
         this(factory, interfaceClass, null);
     }
@@ -55,19 +57,47 @@ public final class ContainerHelper<C extends AEBaseContainer, I> {
         this.factory = factory;
     }
 
+    /**
+     * Specifies a custom strategy for obtaining a custom container name.
+     * <p>
+     * The stratgy should return {@link LiteralText#EMPTY} if there's no custom
+     * name.
+     */
+    public ContainerHelper<C, I> withContainerTitle(Function<I, Text> containerTitleStrategy) {
+        this.containerTitleStrategy = containerTitleStrategy;
+        return this;
+    }
+
     /**
      * Opens a container that is based around a single block entity. The tile
      * entity's position is encoded in the packet buffer.
      */
     public C fromNetwork(int windowId, PlayerInventory inv, PacketByteBuf packetBuf) {
+        return fromNetwork(windowId, inv, packetBuf, (accessObj, container, buffer) -> {
+        });
+    }
+
+    /**
+     * Same as {@link #open}, but allows or additional data to be read from the
+     * packet, and passed onto the container.
+     */
+    public C fromNetwork(int windowId, PlayerInventory inv, PacketByteBuf packetBuf,
+            InitialDataDeserializer<C, I> initialDataDeserializer) {
         I host = getHostFromLocator(inv.player, ContainerLocator.read(packetBuf));
         if (host != null) {
-            return factory.create(windowId, inv, host);
+            C container = factory.create(windowId, inv, host);
+            initialDataDeserializer.deserializeInitialData(host, container, packetBuf);
+            return container;
         }
         return null;
     }
 
     public boolean open(PlayerEntity player, ContainerLocator locator) {
+        return open(player, locator, (accessObj, buffer) -> {
+        });
+    }
+
+    public boolean open(PlayerEntity player, ContainerLocator locator, InitialDataSerializer<I> initialDataSerializer) {
         if (!(player instanceof ServerPlayerEntity)) {
             // Cannot open containers on the client or for non-players
             // FIXME logging?
@@ -84,9 +114,9 @@ public final class ContainerHelper<C extends AEBaseContainer, I> {
             return false;
         }
 
-        Text title = findContainerTitle(player.world, locator, accessInterface);
+        Text title = containerTitleStrategy.apply(accessInterface);
 
-        player.openHandledScreen(new HandlerFactory(locator, title, accessInterface));
+        player.openHandledScreen(new HandlerFactory(locator, title, accessInterface, initialDataSerializer));
 
         return true;
     }
@@ -99,15 +129,20 @@ public final class ContainerHelper<C extends AEBaseContainer, I> {
 
         private final Text title;
 
-        public HandlerFactory(ContainerLocator locator, Text title, I accessInterface) {
+        private final InitialDataSerializer<I> initialDataSerializer;
+
+        public HandlerFactory(ContainerLocator locator, Text title, I accessInterface,
+                InitialDataSerializer<I> initialDataSerializer) {
             this.locator = locator;
             this.title = title;
             this.accessInterface = accessInterface;
+            this.initialDataSerializer = initialDataSerializer;
         }
 
         @Override
         public void writeScreenOpeningData(ServerPlayerEntity player, PacketByteBuf buf) {
             locator.write(buf);
+            initialDataSerializer.serializeInitialData(accessInterface, buf);
         }
 
         @Override
@@ -127,28 +162,6 @@ public final class ContainerHelper<C extends AEBaseContainer, I> {
 
     }
 
-    private Text findContainerTitle(World world, ContainerLocator locator, I accessInterface) {
-
-        if (accessInterface instanceof ICustomNameObject) {
-            ICustomNameObject customNameObject = (ICustomNameObject) accessInterface;
-            if (customNameObject.hasCustomInventoryName()) {
-                return customNameObject.getCustomInventoryName();
-            }
-        }
-
-        // Use block name at position
-        // FIXME: this is not right, we'd need to check the part's item stack, or custom
-        // naming interface impl
-        // FIXME: Should move this up, because at this point, it's hard to know where
-        // the terminal host came from (part or tile)
-        if (locator.hasBlockPos()) {
-            return new TranslatableText(world.getBlockState(locator.getBlockPos()).getBlock().getTranslationKey());
-        }
-
-        return new LiteralText("Unknown");
-
-    }
-
     private I getHostFromLocator(PlayerEntity player, ContainerLocator locator) {
         if (locator.hasItemIndex()) {
             return getHostFromPlayerInventory(player, locator);
@@ -225,6 +238,24 @@ public final class ContainerHelper<C extends AEBaseContainer, I> {
         C create(int windowId, PlayerInventory playerInv, I accessObj);
     }
 
+    /**
+     * Strategy used to serialize initial data for opening the container on the
+     * client-side into the packet that is sent to the client.
+     */
+    @FunctionalInterface
+    public interface InitialDataSerializer<I> {
+        void serializeInitialData(I host, PacketByteBuf buffer);
+    }
+
+    /**
+     * Strategy used to deserialize initial data for opening the container on the
+     * client-side from the packet received by the server.
+     */
+    @FunctionalInterface
+    public interface InitialDataDeserializer<C, I> {
+        void deserializeInitialData(I host, C container, PacketByteBuf buffer);
+    }
+
     private boolean checkPermission(PlayerEntity player, Object accessInterface) {
 
         if (requiredPermission != null) {
@@ -235,4 +266,15 @@ public final class ContainerHelper<C extends AEBaseContainer, I> {
 
     }
 
+    private Text getDefaultContainerTitle(I accessInterface) {
+        if (accessInterface instanceof ICustomNameObject) {
+            ICustomNameObject customNameObject = (ICustomNameObject) accessInterface;
+            if (customNameObject.hasCustomInventoryName()) {
+                return customNameObject.getCustomInventoryName();
+            }
+        }
+
+        return LiteralText.EMPTY;
+    }
+
 }

src/main/java/appeng/container/implementations/CraftConfirmContainer.java

@@ -19,14 +19,8 @@
 package appeng.container.implementations;
 
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Collections;
 import java.util.concurrent.Future;
 
-import javax.annotation.Nullable;
-
-import com.google.common.collect.ImmutableSet;
-
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.network.PacketByteBuf;
@@ -66,9 +60,8 @@ import appeng.me.helpers.PlayerSource;
 import appeng.parts.reporting.CraftingTerminalPart;
 import appeng.parts.reporting.PatternTerminalPart;
 import appeng.parts.reporting.TerminalPart;
-import appeng.util.Platform;
 
-public class CraftConfirmContainer extends AEBaseContainer {
+public class CraftConfirmContainer extends AEBaseContainer implements CraftingCPUCyclingContainer {
 
     public static ScreenHandlerType<CraftConfirmContainer> TYPE;
 
@@ -83,98 +76,51 @@ public class CraftConfirmContainer extends AEBaseContainer {
         return helper.open(player, locator);
     }
 
-    private final ArrayList<CraftingCPURecord> cpus = new ArrayList<>();
+    private final CraftingCPUCycler cpuCycler;
+
+    private ICraftingCPU selectedCpu;
+
     private Future<ICraftingJob> job;
     private ICraftingJob result;
     @GuiSync(0)
     public long bytesUsed;
-    @GuiSync(1)
-    public long cpuBytesAvail;
-    @GuiSync(2)
-    public int cpuCoProcessors;
     @GuiSync(3)
     public boolean autoStart = false;
     @GuiSync(4)
     public boolean simulation = true;
-    @GuiSync(5)
+
-    public int selectedCpu = -1;
+    // Indicates whether any CPUs are available
     @GuiSync(6)
     public boolean noCPU = true;
+
+    // Properties of the currently selected crafting CPU, this can be null
+    // if no CPUs are available, or if an automatic one is selected
+    @GuiSync(1)
+    public long cpuBytesAvail;
+    @GuiSync(2)
+    public int cpuCoProcessors;
     @GuiSync(7)
-    public Text myName;
+    public Text cpuName;
 
     public CraftConfirmContainer(int id, PlayerInventory ip, ITerminalHost te) {
         super(TYPE, id, ip, te);
+        this.cpuCycler = new CraftingCPUCycler(this::cpuMatches, this::onCPUSelectionChanged);
+        // A player can select no crafting CPU to use a suitable one automatically
+        this.cpuCycler.setAllowNoSelection(true);
     }
 
-    public void cycleCpu(final boolean next) {
+    @Override
-        if (next) {
+    public void cycleSelectedCPU(final boolean next) {
-            this.setSelectedCpu(this.getSelectedCpu() + 1);
+        this.cpuCycler.cycleCpu(next);
-        } else {
-            this.setSelectedCpu(this.getSelectedCpu() - 1);
-        }
-
-        if (this.getSelectedCpu() < -1) {
-            this.setSelectedCpu(this.cpus.size() - 1);
-        } else if (this.getSelectedCpu() >= this.cpus.size()) {
-            this.setSelectedCpu(-1);
-        }
-
-        if (this.getSelectedCpu() == -1) {
-            this.setCpuAvailableBytes(0);
-            this.setCpuCoProcessors(0);
-            this.setName(null);
-        } else {
-            CraftingCPURecord cpu = this.cpus.get(this.getSelectedCpu());
-            this.setName(cpu.getName());
-            this.setCpuAvailableBytes(cpu.getSize());
-            this.setCpuCoProcessors(cpu.getProcessors());
-        }
     }
 
     @Override
     public void sendContentUpdates() {
-        if (Platform.isClient()) {
+        if (isClient()) {
             return;
         }
 
-        final ICraftingGrid cc = this.getGrid().getCache(ICraftingGrid.class);
+        this.cpuCycler.detectAndSendChanges(this.getGrid());
-        final ImmutableSet<ICraftingCPU> cpuSet = cc.getCpus();
-
-        int matches = 0;
-        boolean changed = false;
-        for (final ICraftingCPU c : cpuSet) {
-            boolean found = false;
-            for (final CraftingCPURecord ccr : this.cpus) {
-                if (ccr.getCpu() == c) {
-                    found = true;
-                    break;
-                }
-            }
-
-            final boolean matched = this.cpuMatches(c);
-
-            if (matched) {
-                matches++;
-            }
-
-            if (found == !matched) {
-                changed = true;
-            }
-        }
-
-        if (changed || this.cpus.size() != matches) {
-            this.cpus.clear();
-            for (final ICraftingCPU c : cpuSet) {
-                if (this.cpuMatches(c)) {
-                    this.cpus.add(new CraftingCPURecord(c.getAvailableStorage(), c.getCoProcessors(), c));
-                }
-            }
-
-            this.sendCPUs();
-        }
-
-        this.setNoCPU(this.cpus.isEmpty());
 
         super.sendContentUpdates();
 
@@ -277,22 +223,6 @@ public class CraftConfirmContainer extends AEBaseContainer {
         return c.getAvailableStorage() >= this.getUsedBytes() && !c.isBusy();
     }
 
-    private void sendCPUs() {
-        Collections.sort(this.cpus);
-
-        if (this.getSelectedCpu() >= this.cpus.size()) {
-            this.setSelectedCpu(-1);
-            this.setCpuAvailableBytes(0);
-            this.setCpuCoProcessors(0);
-            this.setName(null);
-        } else if (this.getSelectedCpu() != -1) {
-            CraftingCPURecord cpu = this.cpus.get(this.getSelectedCpu());
-            this.setName(cpu.getName());
-            this.setCpuAvailableBytes(cpu.getSize());
-            this.setCpuCoProcessors(cpu.getProcessors());
-        }
-    }
-
     public void startJob() {
         ScreenHandlerType<?> originalGui = null;
 
@@ -315,9 +245,7 @@ public class CraftConfirmContainer extends AEBaseContainer {
 
         if (this.result != null && !this.isSimulation()) {
             final ICraftingGrid cc = this.getGrid().getCache(ICraftingGrid.class);
-            final ICraftingLink g = cc.submitJob(this.result, null,
+            final ICraftingLink g = cc.submitJob(this.result, null, this.selectedCpu, true, this.getActionSrc());
-                    this.getSelectedCpu() == -1 ? null : this.cpus.get(this.getSelectedCpu()).getCpu(), true,
-                    this.getActionSrc());
             this.setAutoStart(false);
             if (g != null && originalGui != null && this.getLocator() != null) {
                 ContainerOpener.openContainer(originalGui, getPlayerInventory().player, getLocator());
@@ -347,6 +275,22 @@ public class CraftConfirmContainer extends AEBaseContainer {
         }
     }
 
+    private void onCPUSelectionChanged(CraftingCPURecord cpuRecord, boolean cpusAvailable) {
+        noCPU = !cpusAvailable;
+
+        if (cpuRecord == null) {
+            cpuBytesAvail = 0;
+            cpuCoProcessors = 0;
+            cpuName = null;
+            selectedCpu = null;
+        } else {
+            cpuBytesAvail = cpuRecord.getSize();
+            cpuCoProcessors = cpuRecord.getProcessors();
+            cpuName = cpuRecord.getName();
+            selectedCpu = cpuRecord.getCpu();
+        }
+    }
+
     public World getWorld() {
         return this.getPlayerInv().player.world;
     }
@@ -371,42 +315,18 @@ public class CraftConfirmContainer extends AEBaseContainer {
         return this.cpuBytesAvail;
     }
 
-    private void setCpuAvailableBytes(final long cpuBytesAvail) {
-        this.cpuBytesAvail = cpuBytesAvail;
-    }
-
     public int getCpuCoProcessors() {
         return this.cpuCoProcessors;
     }
 
-    private void setCpuCoProcessors(final int cpuCoProcessors) {
-        this.cpuCoProcessors = cpuCoProcessors;
-    }
-
-    public int getSelectedCpu() {
-        return this.selectedCpu;
-    }
-
-    private void setSelectedCpu(final int selectedCpu) {
-        this.selectedCpu = selectedCpu;
-    }
-
     public Text getName() {
-        return this.myName;
+        return this.cpuName;
-    }
-
-    private void setName(@Nullable final Text myName) {
-        this.myName = myName;
     }
 
     public boolean hasNoCPU() {
         return this.noCPU;
     }
 
-    private void setNoCPU(final boolean noCPU) {
-        this.noCPU = noCPU;
-    }
-
     public boolean isSimulation() {
         return this.simulation;
     }

src/main/java/appeng/container/implementations/CraftingCPUContainer.java

@@ -26,7 +26,7 @@ import net.minecraft.network.PacketByteBuf;
 import net.minecraft.screen.ScreenHandlerListener;
 import net.minecraft.screen.ScreenHandlerType;
 import net.minecraft.server.network.ServerPlayerEntity;
-import net.minecraft.text.Text;
+import net.minecraft.text.LiteralText;
 
 import appeng.api.config.SecurityPermissions;
 import appeng.api.networking.IGrid;
@@ -46,24 +46,28 @@ import appeng.core.Api;
 import appeng.core.sync.network.NetworkHandler;
 import appeng.core.sync.packets.ConfigValuePacket;
 import appeng.core.sync.packets.MEInventoryUpdatePacket;
-import appeng.helpers.ICustomNameObject;
 import appeng.me.cluster.implementations.CraftingCPUCluster;
 import appeng.tile.crafting.CraftingBlockEntity;
-import appeng.util.Platform;
 
-public class CraftingCPUContainer extends AEBaseContainer
+public class CraftingCPUContainer extends AEBaseContainer implements IMEMonitorHandlerReceiver<IAEItemStack> {
-        implements IMEMonitorHandlerReceiver<IAEItemStack>, ICustomNameObject {
 
     public static ScreenHandlerType<CraftingCPUContainer> TYPE;
 
     private static final ContainerHelper<CraftingCPUContainer, CraftingBlockEntity> helper = new ContainerHelper<>(
-            CraftingCPUContainer::new, CraftingBlockEntity.class, SecurityPermissions.CRAFT);
+            CraftingCPUContainer::new, CraftingBlockEntity.class, SecurityPermissions.CRAFT)
+                    .withContainerTitle(craftingTileEntity -> {
+                        // Use the cluster's custom name instead of the right-clicked block entities one
+                        CraftingCPUCluster cluster = craftingTileEntity.getCluster();
+                        if (cluster != null && cluster.getName() != null) {
+                            return cluster.getName();
+                        }
+                        return LiteralText.EMPTY;
+                    });
 
     private final IItemList<IAEItemStack> list = Api.instance().storage().getStorageChannel(IItemStorageChannel.class)
             .createList();
-    private IGrid network;
+    private final IGrid network;
     private CraftingCPUCluster monitor = null;
-    private Text cpuName = null;
 
     @GuiSync(0)
     public long eta = -1;
@@ -77,14 +81,16 @@ public class CraftingCPUContainer extends AEBaseContainer
         final IActionHost host = (IActionHost) (te instanceof IActionHost ? te : null);
 
         if (host != null && host.getActionableNode() != null) {
-            this.setNetwork(host.getActionableNode().getGrid());
+            this.network = host.getActionableNode().getGrid();
+        } else {
+            this.network = null;
         }
 
         if (te instanceof CraftingBlockEntity) {
             this.setCPU(((CraftingBlockEntity) te).getCluster());
         }
 
-        if (this.getNetwork() == null && Platform.isServer()) {
+        if (this.getNetwork() == null && isServer()) {
             this.setValidContainer(false);
         }
     }
@@ -114,15 +120,13 @@ public class CraftingCPUContainer extends AEBaseContainer
         }
 
         if (c instanceof CraftingCPUCluster) {
-            this.cpuName = c.getName();
+            this.monitor = (CraftingCPUCluster) c;
-            this.setMonitor((CraftingCPUCluster) c);
             this.list.resetStatus();
             this.getMonitor().getListOfItem(this.list, CraftingItemList.ALL);
             this.getMonitor().addListener(this, null);
             this.setEstimatedTime(0);
         } else {
-            this.setMonitor(null);
+            this.monitor = null;
-            this.cpuName = null;
             this.setEstimatedTime(-1);
         }
     }
@@ -153,7 +157,7 @@ public class CraftingCPUContainer extends AEBaseContainer
 
     @Override
     public void sendContentUpdates() {
-        if (Platform.isServer() && this.getMonitor() != null && !this.list.isEmpty()) {
+        if (isServer() && this.getMonitor() != null && !this.list.isEmpty()) {
             try {
                 if (this.getEstimatedTime() >= 0) {
                     final long elapsedTime = this.getMonitor().getElapsedTime();
@@ -218,16 +222,6 @@ public class CraftingCPUContainer extends AEBaseContainer
 
     }
 
-    @Override
-    public Text getCustomInventoryName() {
-        return this.cpuName;
-    }
-
-    @Override
-    public boolean hasCustomInventoryName() {
-        return this.cpuName != null;
-    }
-
     public long getEstimatedTime() {
         return this.eta;
     }
@@ -240,15 +234,8 @@ public class CraftingCPUContainer extends AEBaseContainer
         return this.monitor;
     }
 
-    private void setMonitor(final CraftingCPUCluster monitor) {
-        this.monitor = monitor;
-    }
-
     IGrid getNetwork() {
         return this.network;
     }
 
-    private void setNetwork(final IGrid network) {
-        this.network = network;
-    }
 }

src/main/java/appeng/container/implementations/CraftingCPUCycler.java

@@ -0,0 +1,131 @@
+package appeng.container.implementations;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Predicate;
+
+import com.google.common.collect.ImmutableSet;
+
+import net.minecraft.text.LiteralText;
+
+import appeng.api.networking.IGrid;
+import appeng.api.networking.crafting.ICraftingCPU;
+import appeng.api.networking.crafting.ICraftingGrid;
+
+/**
+ * Utility class for dialogs that can cycle through crafting CPUs
+ */
+class CraftingCPUCycler {
+
+    @FunctionalInterface
+    public interface ChangeListener {
+        void onChange(CraftingCPURecord selectedCpu, boolean cpusAvailable);
+    }
+
+    private final Predicate<ICraftingCPU> cpuFilter;
+    private final ChangeListener changeListener;
+    private final List<CraftingCPURecord> cpus = new ArrayList<>();
+    private int selectedCpu = -1;
+    private boolean initialDataSent = false;
+    private boolean allowNoSelection;
+
+    public CraftingCPUCycler(Predicate<ICraftingCPU> cpuFilter, ChangeListener changeListener) {
+        this.cpuFilter = cpuFilter;
+        this.changeListener = changeListener;
+    }
+
+    public void detectAndSendChanges(IGrid network) {
+        final ICraftingGrid cc = network.getCache(ICraftingGrid.class);
+        final ImmutableSet<ICraftingCPU> cpuSet = cc.getCpus();
+
+        int matches = 0;
+        boolean changed = !initialDataSent;
+        initialDataSent = true;
+        for (final ICraftingCPU c : cpuSet) {
+            boolean found = false;
+            for (final CraftingCPURecord ccr : this.cpus) {
+                if (ccr.getCpu() == c) {
+                    found = true;
+                    break;
+                }
+            }
+
+            final boolean matched = this.cpuFilter.test(c);
+
+            if (matched) {
+                matches++;
+            }
+
+            if (found == !matched) {
+                changed = true;
+            }
+        }
+
+        if (changed || this.cpus.size() != matches) {
+            this.cpus.clear();
+            for (final ICraftingCPU c : cpuSet) {
+                if (this.cpuFilter.test(c)) {
+                    this.cpus.add(new CraftingCPURecord(c.getAvailableStorage(), c.getCoProcessors(), c));
+                }
+            }
+
+            // Sort and assign numeric IDs in case they have no names
+            Collections.sort(this.cpus);
+            for (int i = 0; i < this.cpus.size(); i++) {
+                CraftingCPURecord cpu = cpus.get(i);
+                if (cpu.getName() == null) {
+                    cpu.setName(new LiteralText("#" + (i + 1)));
+                }
+            }
+
+            this.notifyListener();
+        }
+    }
+
+    public void cycleCpu(final boolean next) {
+        if (next) {
+            this.selectedCpu++;
+        } else {
+            this.selectedCpu--;
+        }
+
+        // If "no CPU" is a valid selection, then -1 is the first potential item
+        int lowerLimit = this.allowNoSelection ? -1 : 0;
+
+        if (this.selectedCpu < lowerLimit) {
+            this.selectedCpu = this.cpus.size() - 1;
+        } else if (this.selectedCpu >= this.cpus.size()) {
+            this.selectedCpu = lowerLimit;
+        }
+
+        this.notifyListener();
+    }
+
+    public boolean isAllowNoSelection() {
+        return allowNoSelection;
+    }
+
+    public void setAllowNoSelection(boolean allowNoSelection) {
+        this.allowNoSelection = allowNoSelection;
+    }
+
+    private void notifyListener() {
+        if (this.selectedCpu >= this.cpus.size()) {
+            this.selectedCpu = -1;
+        }
+
+        // Force the selected CPU to the first available CPU unless no-selection is
+        // explicitly allowed
+        if (!this.allowNoSelection && this.selectedCpu == -1 && !this.cpus.isEmpty()) {
+            this.selectedCpu = 0;
+        }
+
+        if (this.selectedCpu != -1) {
+            this.changeListener.onChange(this.cpus.get(this.selectedCpu), true);
+        } else {
+            this.changeListener.onChange(null, !this.cpus.isEmpty());
+        }
+    }
+
+}

src/main/java/appeng/container/implementations/CraftingCPUCyclingContainer.java

@@ -0,0 +1,12 @@
+package appeng.container.implementations;
+
+/**
+ * Implemented on screens that show information about a crafting CPU and allow
+ * the CPU to be cycled. Is triggered by receiving a config value packet with
+ * name <code>Terminal.Cpu</code>.
+ */
+public interface CraftingCPUCyclingContainer {
+
+    void cycleSelectedCPU(boolean forward);
+
+}

src/main/java/appeng/container/implementations/CraftingCPURecord.java

@@ -25,16 +25,16 @@ import net.minecraft.text.Text;
 import appeng.api.networking.crafting.ICraftingCPU;
 
 public class CraftingCPURecord implements Comparable<CraftingCPURecord> {
-    private final Text myName;
     private final ICraftingCPU cpu;
     private final long size;
     private final int processors;
+    private Text name;
 
     public CraftingCPURecord(final long size, final int coProcessors, final ICraftingCPU server) {
         this.size = size;
         this.processors = coProcessors;
         this.cpu = server;
-        this.myName = server.getName();
+        this.name = server.getName();
     }
 
     @Override
@@ -50,10 +50,6 @@ public class CraftingCPURecord implements Comparable<CraftingCPURecord> {
         return this.cpu;
     }
 
-    Text getName() {
-        return this.myName;
-    }
-
     int getProcessors() {
         return this.processors;
     }
@@ -61,4 +57,13 @@ public class CraftingCPURecord implements Comparable<CraftingCPURecord> {
     long getSize() {
         return this.size;
     }
+
+    public Text getName() {
+        return name;
+    }
+
+    public void setName(Text name) {
+        this.name = name;
+    }
+
 }

src/main/java/appeng/container/implementations/CraftingStatusContainer.java

@@ -18,12 +18,6 @@
 
 package appeng.container.implementations;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-
-import com.google.common.collect.ImmutableSet;
-
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.network.PacketByteBuf;
@@ -31,14 +25,13 @@ import net.minecraft.screen.ScreenHandlerType;
 import net.minecraft.text.Text;
 
 import appeng.api.config.SecurityPermissions;
+import appeng.api.networking.IGrid;
 import appeng.api.networking.crafting.ICraftingCPU;
-import appeng.api.networking.crafting.ICraftingGrid;
 import appeng.api.storage.ITerminalHost;
 import appeng.container.ContainerLocator;
 import appeng.container.guisync.GuiSync;
-import appeng.util.Platform;
 
-public class CraftingStatusContainer extends CraftingCPUContainer {
+public class CraftingStatusContainer extends CraftingCPUContainer implements CraftingCPUCyclingContainer {
 
     public static ScreenHandlerType<CraftingStatusContainer> TYPE;
 
@@ -53,13 +46,13 @@ public class CraftingStatusContainer extends CraftingCPUContainer {
         return helper.open(player, locator);
     }
 
-    private final List<CraftingCPURecord> cpus = new ArrayList<>();
+    private final CraftingCPUCycler cpuCycler = new CraftingCPUCycler(this::cpuMatches, this::onCPUSelectionChanged);
-    @GuiSync(5)
+
-    public int selectedCpu = -1;
     @GuiSync(6)
     public boolean noCPU = true;
+
     @GuiSync(7)
-    public Text myName;
+    public Text cpuName;
 
     public CraftingStatusContainer(int id, final PlayerInventory ip, final ITerminalHost te) {
         super(TYPE, id, ip, te);
@@ -67,43 +60,9 @@ public class CraftingStatusContainer extends CraftingCPUContainer {
 
     @Override
     public void sendContentUpdates() {
-        if (Platform.isServer() && this.getNetwork() != null) {
+        IGrid network = this.getNetwork();
-            final ICraftingGrid cc = this.getNetwork().getCache(ICraftingGrid.class);
+        if (isServer() && network != null) {
-            final ImmutableSet<ICraftingCPU> cpuSet = cc.getCpus();
+            cpuCycler.detectAndSendChanges(network);
-
-            int matches = 0;
-            boolean changed = false;
-            for (final ICraftingCPU c : cpuSet) {
-                boolean found = false;
-                for (final CraftingCPURecord ccr : this.cpus) {
-                    if (ccr.getCpu() == c) {
-                        found = true;
-                    }
-                }
-
-                final boolean matched = this.cpuMatches(c);
-
-                if (matched) {
-                    matches++;
-                }
-
-                if (found == !matched) {
-                    changed = true;
-                }
-            }
-
-            if (changed || this.cpus.size() != matches) {
-                this.cpus.clear();
-                for (final ICraftingCPU c : cpuSet) {
-                    if (this.cpuMatches(c)) {
-                        this.cpus.add(new CraftingCPURecord(c.getAvailableStorage(), c.getCoProcessors(), c));
-                    }
-                }
-
-                this.sendCPUs();
-            }
-
-            this.noCPU = this.cpus.isEmpty();
         }
 
         super.sendContentUpdates();
@@ -113,52 +72,20 @@ public class CraftingStatusContainer extends CraftingCPUContainer {
         return c.isBusy();
     }
 
-    private void sendCPUs() {
+    private void onCPUSelectionChanged(CraftingCPURecord cpuRecord, boolean cpusAvailable) {
-        Collections.sort(this.cpus);
+        noCPU = !cpusAvailable;
-
+        if (cpuRecord == null) {
-        if (this.selectedCpu >= this.cpus.size()) {
+            cpuName = null;
-            this.selectedCpu = -1;
+            setCPU(null);
-            this.myName = null;
-        } else if (this.selectedCpu != -1) {
-            this.myName = this.cpus.get(this.selectedCpu).getName();
-        }
-
-        if (this.selectedCpu == -1 && this.cpus.size() > 0) {
-            this.selectedCpu = 0;
-        }
-
-        if (this.selectedCpu != -1) {
-            if (this.cpus.get(this.selectedCpu).getCpu() != this.getMonitor()) {
-                this.setCPU(this.cpus.get(this.selectedCpu).getCpu());
-            }
         } else {
-            this.setCPU(null);
+            cpuName = cpuRecord.getName();
+            setCPU(cpuRecord.getCpu());
         }
     }
 
-    public void cycleCpu(final boolean next) {
+    @Override
-        if (next) {
+    public void cycleSelectedCPU(boolean forward) {
-            this.selectedCpu++;
+        this.cpuCycler.cycleCpu(forward);
-        } else {
-            this.selectedCpu--;
-        }
-
-        if (this.selectedCpu < -1) {
-            this.selectedCpu = this.cpus.size() - 1;
-        } else if (this.selectedCpu >= this.cpus.size()) {
-            this.selectedCpu = -1;
-        }
-
-        if (this.selectedCpu == -1 && this.cpus.size() > 0) {
-            this.selectedCpu = 0;
-        }
-
-        if (this.selectedCpu == -1) {
-            this.myName = null;
-            this.setCPU(null);
-        } else {
-            this.myName = this.cpus.get(this.selectedCpu).getName();
-            this.setCPU(this.cpus.get(this.selectedCpu).getCpu());
-        }
     }
+
 }

src/main/java/appeng/container/implementations/FormationPlaneContainer.java

@@ -36,7 +36,6 @@ import appeng.container.slot.FakeTypeOnlySlot;
 import appeng.container.slot.OptionalTypeOnlyFakeSlot;
 import appeng.container.slot.RestrictedInputSlot;
 import appeng.parts.automation.FormationPlanePart;
-import appeng.util.Platform;
 
 public class FormationPlaneContainer extends UpgradeableContainer {
 
@@ -108,7 +107,7 @@ public class FormationPlaneContainer extends UpgradeableContainer {
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.setFuzzyMode((FuzzyMode) this.getUpgradeable().getConfigManager().getSetting(Settings.FUZZY_MODE));
             this.setPlaceMode((YesNo) this.getUpgradeable().getConfigManager().getSetting(Settings.PLACE_BLOCK));
         }

src/main/java/appeng/container/implementations/IOPortContainer.java

@@ -35,7 +35,6 @@ import appeng.container.guisync.GuiSync;
 import appeng.container.slot.OutputSlot;
 import appeng.container.slot.RestrictedInputSlot;
 import appeng.tile.storage.IOPortBlockEntity;
-import appeng.util.Platform;
 
 public class IOPortContainer extends UpgradeableContainer {
 
@@ -112,7 +111,7 @@ public class IOPortContainer extends UpgradeableContainer {
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.setOperationMode(
                     (OperationMode) this.getUpgradeable().getConfigManager().getSetting(Settings.OPERATION_MODE));
             this.setFullMode(

src/main/java/appeng/container/implementations/InscriberContainer.java

@@ -36,7 +36,6 @@ import appeng.container.slot.RestrictedInputSlot;
 import appeng.core.Api;
 import appeng.tile.misc.InscriberBlockEntity;
 import appeng.tile.misc.InscriberRecipes;
-import appeng.util.Platform;
 
 /**
  * @author AlgorithmX2
@@ -120,7 +119,7 @@ public class InscriberContainer extends UpgradeableContainer implements IProgres
     public void sendContentUpdates() {
         this.standardDetectAndSendChanges();
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.maxProcessingTime = this.ti.getMaxProcessingTime();
             this.processingTime = this.ti.getProcessingTime();
         }

src/main/java/appeng/container/implementations/InterfaceTerminalContainer.java

@@ -55,7 +55,6 @@ import appeng.parts.reporting.InterfaceTerminalPart;
 import appeng.tile.inventory.AppEngInternalInventory;
 import appeng.tile.misc.InterfaceBlockEntity;
 import appeng.util.InventoryAdaptor;
-import appeng.util.Platform;
 import appeng.util.helpers.ItemHandlerUtil;
 import appeng.util.inv.AdaptorFixedInv;
 import appeng.util.inv.WrapperCursorItemHandler;
@@ -88,7 +87,7 @@ public final class InterfaceTerminalContainer extends AEBaseContainer {
     public InterfaceTerminalContainer(int id, final PlayerInventory ip, final InterfaceTerminalPart anchor) {
         super(TYPE, id, ip, anchor);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.grid = anchor.getActionableNode().getGrid();
         }
 
@@ -97,7 +96,7 @@ public final class InterfaceTerminalContainer extends AEBaseContainer {
 
     @Override
     public void sendContentUpdates() {
-        if (Platform.isClient()) {
+        if (isClient()) {
             return;
         }
 

src/main/java/appeng/container/implementations/LevelEmitterContainer.java

@@ -18,8 +18,6 @@
 
 package appeng.container.implementations;
 
-import net.fabricmc.api.EnvType;
-import net.fabricmc.api.Environment;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.network.PacketByteBuf;
@@ -33,13 +31,13 @@ import appeng.api.config.RedstoneMode;
 import appeng.api.config.SecurityPermissions;
 import appeng.api.config.Settings;
 import appeng.api.config.YesNo;
-import appeng.client.gui.implementations.NumberEntryWidget;
 import appeng.container.ContainerLocator;
 import appeng.container.guisync.GuiSync;
 import appeng.container.slot.FakeTypeOnlySlot;
 import appeng.container.slot.RestrictedInputSlot;
+import appeng.core.sync.network.NetworkHandler;
+import appeng.core.sync.packets.ConfigValuePacket;
 import appeng.parts.automation.LevelEmitterPart;
-import appeng.util.Platform;
 
 public class LevelEmitterContainer extends UpgradeableContainer {
 
@@ -49,38 +47,46 @@ public class LevelEmitterContainer extends UpgradeableContainer {
             LevelEmitterContainer::new, LevelEmitterPart.class, SecurityPermissions.BUILD);
 
     public static LevelEmitterContainer fromNetwork(int windowId, PlayerInventory inv, PacketByteBuf buf) {
-        return helper.fromNetwork(windowId, inv, buf);
+        return helper.fromNetwork(windowId, inv, buf, (host, container, buffer) -> {
+            container.reportingValue = buffer.readVarLong();
+        });
     }
 
     public static boolean open(PlayerEntity player, ContainerLocator locator) {
-        return helper.open(player, locator);
+        return helper.open(player, locator, (host, buffer) -> {
+            buffer.writeVarLong(host.getReportingValue());
+        });
     }
 
     private final LevelEmitterPart lvlEmitter;
 
-    @Environment(EnvType.CLIENT)
-    private NumberEntryWidget textField;
     @GuiSync(2)
     public LevelType lvType;
     @GuiSync(3)
-    public long EmitterValue = -1;
-    @GuiSync(4)
     public YesNo cmType;
 
+    // Only synced once on container-open, and only used on client
+    private long reportingValue;
+
     public LevelEmitterContainer(int id, final PlayerInventory ip, final LevelEmitterPart te) {
         super(TYPE, id, ip, te);
         this.lvlEmitter = te;
     }
 
-    @Environment(EnvType.CLIENT)
+    public long getReportingValue() {
-    public void setTextField(final NumberEntryWidget level) {
+        return reportingValue;
-        this.textField = level;
-        this.textField.setValue(this.EmitterValue);
     }
 
-    public void setLevel(final long l, final PlayerEntity player) {
+    public void setReportingValue(long reportingValue) {
-        this.lvlEmitter.setReportingValue(l);
+        if (isClient()) {
-        this.EmitterValue = l;
+            if (reportingValue != this.reportingValue) {
+                this.reportingValue = reportingValue;
+                NetworkHandler.instance()
+                        .sendToServer(new ConfigValuePacket("LevelEmitter.Value", String.valueOf(reportingValue)));
+            }
+        } else {
+            this.lvlEmitter.setReportingValue(reportingValue);
+        }
     }
 
     @Override
@@ -116,7 +122,6 @@ public class LevelEmitterContainer extends UpgradeableContainer {
 
     @Override
     public int availableUpgrades() {
-
         return 1;
     }
 
@@ -124,8 +129,7 @@ public class LevelEmitterContainer extends UpgradeableContainer {
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
-            this.EmitterValue = this.lvlEmitter.getReportingValue();
             this.setCraftingMode(
                     (YesNo) this.getUpgradeable().getConfigManager().getSetting(Settings.CRAFT_VIA_REDSTONE));
             this.setLevelMode((LevelType) this.getUpgradeable().getConfigManager().getSetting(Settings.LEVEL_TYPE));
@@ -137,15 +141,6 @@ public class LevelEmitterContainer extends UpgradeableContainer {
         this.standardDetectAndSendChanges();
     }
 
-    @Override
-    public void onUpdate(final String field, final Object oldValue, final Object newValue) {
-        if (field.equals("EmitterValue")) {
-            if (this.textField != null) {
-                this.textField.setValue(this.EmitterValue);
-            }
-        }
-    }
-
     @Override
     public YesNo getCraftingMode() {
         return this.cmType;
@@ -163,4 +158,5 @@ public class LevelEmitterContainer extends UpgradeableContainer {
     private void setLevelMode(final LevelType lvType) {
         this.lvType = lvType;
     }
+
 }

src/main/java/appeng/container/implementations/MEMonitorableContainer.java

@@ -46,6 +46,8 @@ import appeng.api.implementations.tiles.IViewCellStorage;
 import appeng.api.networking.IGrid;
 import appeng.api.networking.IGridHost;
 import appeng.api.networking.IGridNode;
+import appeng.api.networking.crafting.ICraftingCPU;
+import appeng.api.networking.crafting.ICraftingGrid;
 import appeng.api.networking.energy.IEnergyGrid;
 import appeng.api.networking.energy.IEnergySource;
 import appeng.api.networking.security.IActionHost;
@@ -73,7 +75,6 @@ import appeng.core.sync.packets.MEInventoryUpdatePacket;
 import appeng.me.helpers.ChannelPowerSrc;
 import appeng.util.ConfigManager;
 import appeng.util.IConfigManagerHost;
-import appeng.util.Platform;
 
 public class MEMonitorableContainer extends AEBaseContainer
         implements IConfigManagerHost, IConfigurableObject, IMEMonitorHandlerReceiver<IAEItemStack> {
@@ -101,6 +102,13 @@ public class MEMonitorableContainer extends AEBaseContainer
     public boolean canAccessViewCells = false;
     @GuiSync(98)
     public boolean hasPower = false;
+    /**
+     * The number of active crafting jobs in the network. -1 means unknown and will
+     * hide the label on the screen.
+     */
+    @GuiSync(100)
+    public int activeCraftingJobs = -1;
+
     private IConfigManagerHost gui;
     private IConfigManager serverCM;
     private IGridNode networkNode;
@@ -122,7 +130,7 @@ public class MEMonitorableContainer extends AEBaseContainer
         this.clientCM.registerSetting(Settings.VIEW_MODE, ViewItems.ALL);
         this.clientCM.registerSetting(Settings.SORT_DIRECTION, SortDir.ASCENDING);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.serverCM = monitorable.getConfigManager();
 
             this.monitor = monitorable
@@ -183,12 +191,14 @@ public class MEMonitorableContainer extends AEBaseContainer
 
     @Override
     public void sendContentUpdates() {
-        if (Platform.isServer()) {
+        if (isServer()) {
             if (this.monitor != this.host
                     .getInventory(Api.instance().storage().getStorageChannel(IItemStorageChannel.class))) {
                 this.setValidContainer(false);
             }
 
+            this.updateActiveCraftingJobs();
+
             for (final Settings set : this.serverCM.getSettings()) {
                 final Enum<?> sideLocal = this.serverCM.getSetting(set);
                 final Enum<?> sideRemote = this.clientCM.getSetting(set);
@@ -286,8 +296,38 @@ public class MEMonitorableContainer extends AEBaseContainer
         this.queueInventory(c);
     }
 
+    private void updateActiveCraftingJobs() {
+        IGridNode hostNode = networkNode;
+        if (hostNode == null) {
+            // Wireless terminals do not directly expose the target grid (even though they
+            // have one)
+            if (host instanceof IActionHost) {
+                hostNode = ((IActionHost) host).getActionableNode();
+            }
+        }
+        IGrid grid = null;
+        if (hostNode != null) {
+            grid = hostNode.getGrid();
+        }
+
+        if (grid == null) {
+            // No grid to query crafting jobs from
+            this.activeCraftingJobs = -1;
+            return;
+        }
+
+        int activeJobs = 0;
+        ICraftingGrid craftingGrid = grid.getCache(ICraftingGrid.class);
+        for (ICraftingCPU cpus : craftingGrid.getCpus()) {
+            if (cpus.isBusy()) {
+                activeJobs++;
+            }
+        }
+        this.activeCraftingJobs = activeJobs;
+    }
+
     private void queueInventory(final ScreenHandlerListener c) {
-        if (Platform.isServer() && c instanceof PlayerEntity && this.monitor != null) {
+        if (isServer() && c instanceof PlayerEntity && this.monitor != null) {
             try {
                 MEInventoryUpdatePacket piu = new MEInventoryUpdatePacket();
                 final IItemList<IAEItemStack> monitorCache = this.monitor.getStorageList();
@@ -356,7 +396,7 @@ public class MEMonitorableContainer extends AEBaseContainer
 
     @Override
     public IConfigManager getConfigManager() {
-        if (Platform.isServer()) {
+        if (isServer()) {
             return this.serverCM;
         }
         return this.clientCM;

src/main/java/appeng/container/implementations/MolecularAssemblerContainer.java

@@ -42,7 +42,6 @@ import appeng.container.slot.RestrictedInputSlot;
 import appeng.core.Api;
 import appeng.items.misc.EncodedPatternItem;
 import appeng.tile.crafting.MolecularAssemblerBlockEntity;
-import appeng.util.Platform;
 
 public class MolecularAssemblerContainer extends UpgradeableContainer implements IProgressProvider {
 
@@ -148,7 +147,7 @@ public class MolecularAssemblerContainer extends UpgradeableContainer implements
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.setRedStoneMode(
                     (RedstoneMode) this.getUpgradeable().getConfigManager().getSetting(Settings.REDSTONE_CONTROLLED));
         }

src/main/java/appeng/container/implementations/NetworkStatusContainer.java

@@ -43,7 +43,6 @@ import appeng.container.guisync.GuiSync;
 import appeng.core.Api;
 import appeng.core.sync.network.NetworkHandler;
 import appeng.core.sync.packets.MEInventoryUpdatePacket;
-import appeng.util.Platform;
 import appeng.util.item.AEItemStack;
 
 public class NetworkStatusContainer extends AEBaseContainer {
@@ -83,7 +82,7 @@ public class NetworkStatusContainer extends AEBaseContainer {
             }
         }
 
-        if (this.network == null && Platform.isServer()) {
+        if (this.network == null && isServer()) {
             this.setValidContainer(false);
         }
     }
@@ -100,7 +99,7 @@ public class NetworkStatusContainer extends AEBaseContainer {
     @Override
     public void sendContentUpdates() {
         this.delay++;
-        if (Platform.isServer() && this.delay > 15 && this.network != null) {
+        if (isServer() && this.delay > 15 && this.network != null) {
             this.delay = 0;
 
             final IEnergyGrid eg = this.network.getCache(IEnergyGrid.class);

src/main/java/appeng/container/implementations/PatternTermContainer.java

@@ -297,9 +297,9 @@ public class PatternTermContainer extends MEMonitorableContainer
     @Override
     public boolean isSlotEnabled(final int idx) {
         if (idx == 1) {
-            return Platform.isServer() ? !this.getPatternTerminal().isCraftingRecipe() : !this.isCraftingMode();
+            return isServer() ? !this.getPatternTerminal().isCraftingRecipe() : !this.isCraftingMode();
         } else if (idx == 2) {
-            return Platform.isServer() ? this.getPatternTerminal().isCraftingRecipe() : this.isCraftingMode();
+            return isServer() ? this.getPatternTerminal().isCraftingRecipe() : this.isCraftingMode();
         } else {
             return false;
         }
@@ -401,7 +401,7 @@ public class PatternTermContainer extends MEMonitorableContainer
     @Override
     public void sendContentUpdates() {
         super.sendContentUpdates();
-        if (Platform.isServer()) {
+        if (isServer()) {
             if (this.isCraftingMode() != this.getPatternTerminal().isCraftingRecipe()) {
                 this.setCraftingMode(this.getPatternTerminal().isCraftingRecipe());
                 this.updateOrderOfOutputSlots();
@@ -423,7 +423,7 @@ public class PatternTermContainer extends MEMonitorableContainer
 
     @Override
     public void onSlotChange(final Slot s) {
-        if (s == this.patternSlotOUT && Platform.isServer()) {
+        if (s == this.patternSlotOUT && isServer()) {
             for (final ScreenHandlerListener listener : this.getListeners()) {
                 for (int i = 0; i < this.slots.size(); i++) {
                     Slot slot = this.slots.get(i);
@@ -438,7 +438,7 @@ public class PatternTermContainer extends MEMonitorableContainer
             this.sendContentUpdates();
         }
 
-        if (s == this.craftSlot && Platform.isClient()) {
+        if (s == this.craftSlot && isClient()) {
             this.getAndUpdateOutput();
         }
     }

src/main/java/appeng/container/implementations/PriorityContainer.java

@@ -18,8 +18,6 @@
 
 package appeng.container.implementations;
 
-import net.fabricmc.api.EnvType;
-import net.fabricmc.api.Environment;
 import net.minecraft.block.entity.BlockEntity;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.PlayerInventory;
@@ -28,12 +26,11 @@ import net.minecraft.screen.ScreenHandlerType;
 
 import appeng.api.config.SecurityPermissions;
 import appeng.api.parts.IPart;
-import appeng.client.gui.implementations.NumberEntryWidget;
 import appeng.container.AEBaseContainer;
 import appeng.container.ContainerLocator;
-import appeng.container.guisync.GuiSync;
+import appeng.core.sync.network.NetworkHandler;
+import appeng.core.sync.packets.ConfigValuePacket;
 import appeng.helpers.IPriorityHost;
-import appeng.util.Platform;
 
 public class PriorityContainer extends AEBaseContainer {
 
@@ -43,59 +40,53 @@ public class PriorityContainer extends AEBaseContainer {
             PriorityContainer::new, IPriorityHost.class, SecurityPermissions.BUILD);
 
     public static PriorityContainer fromNetwork(int windowId, PlayerInventory inv, PacketByteBuf buf) {
-        return helper.fromNetwork(windowId, inv, buf);
+        return helper.fromNetwork(windowId, inv, buf, (host, container, buffer) -> {
+            container.priorityValue = buffer.readVarInt();
+        });
     }
 
     public static boolean open(PlayerEntity player, ContainerLocator locator) {
-        return helper.open(player, locator);
+        return helper.open(player, locator, (host, buffer) -> buffer.writeVarInt(host.getPriority()));
     }
 
     private final IPriorityHost priHost;
 
-    @Environment(EnvType.CLIENT)
+    private int priorityValue;
-    private NumberEntryWidget textField;
-    @GuiSync(2)
-    public long PriorityValue = -1;
 
     public PriorityContainer(int id, final PlayerInventory ip, final IPriorityHost te) {
         super(TYPE, id, ip, (BlockEntity) (te instanceof BlockEntity ? te : null),
                 (IPart) (te instanceof IPart ? te : null));
         this.priHost = te;
+        this.priorityValue = te.getPriority();
     }
 
-    @Environment(EnvType.CLIENT)
+    public void setPriority(final int newValue) {
-    public void setTextField(final NumberEntryWidget level) {
+        if (newValue != priorityValue) {
-        this.textField = level;
+            if (isClient()) {
-        this.textField.setValue(this.PriorityValue, true);
+                // If for whatever reason the client enters the value first, do not update based
-    }
+                // on incoming server data
-
+                this.priorityValue = newValue;
-    public void setPriority(final int newValue, final PlayerEntity player) {
+                NetworkHandler.instance()
-        this.priHost.setPriority(newValue);
+                        .sendToServer(new ConfigValuePacket("PriorityHost.Priority", String.valueOf(newValue)));
-        this.PriorityValue = newValue;
+            } else {
+                this.priHost.setPriority(newValue);
+                this.priorityValue = newValue;
+            }
+        }
     }
 
     @Override
     public void sendContentUpdates() {
         super.sendContentUpdates();
         this.verifyPermissions(SecurityPermissions.BUILD, false);
-
-        if (Platform.isServer()) {
-            this.PriorityValue = this.priHost.getPriority();
-        }
     }
 
-    @Override
+    public int getPriorityValue() {
-    public void onUpdate(final String field, final Object oldValue, final Object newValue) {
+        return priorityValue;
-        if (field.equals("PriorityValue")) {
-            if (this.textField != null) {
-                this.textField.setValue(this.PriorityValue, true);
-            }
-        }
-
-        super.onUpdate(field, oldValue, newValue);
     }
 
     public IPriorityHost getPriorityHost() {
         return this.priHost;
     }
+
 }

src/main/java/appeng/container/implementations/QuartzKnifeContainer.java

@@ -37,7 +37,6 @@ import appeng.core.Api;
 import appeng.items.contents.QuartzKnifeObj;
 import appeng.items.materials.MaterialItem;
 import appeng.tile.inventory.AppEngInternalInventory;
-import appeng.util.Platform;
 
 public class QuartzKnifeContainer extends AEBaseContainer {
 
@@ -142,7 +141,7 @@ public class QuartzKnifeContainer extends AEBaseContainer {
         }
 
         private void makePlate() {
-            if (Platform.isServer()) {
+            if (isServer()) {
                 if (!inSlot.getSlot(0).extract(1).isEmpty()) {
                     final ItemStack item = QuartzKnifeContainer.this.toolInv.getItemStack();
                     final ItemStack before = item.copy();

src/main/java/appeng/container/implementations/SpatialIOPortContainer.java

@@ -35,7 +35,6 @@ import appeng.container.guisync.GuiSync;
 import appeng.container.slot.OutputSlot;
 import appeng.container.slot.RestrictedInputSlot;
 import appeng.tile.spatial.SpatialIOPortBlockEntity;
-import appeng.util.Platform;
 
 public class SpatialIOPortContainer extends AEBaseContainer {
 
@@ -65,7 +64,7 @@ public class SpatialIOPortContainer extends AEBaseContainer {
     public SpatialIOPortContainer(int id, final PlayerInventory ip, final SpatialIOPortBlockEntity spatialIOPort) {
         super(TYPE, id, ip, spatialIOPort, null);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.network = spatialIOPort.getGridNode(AEPartLocation.INTERNAL).getGrid();
         }
 
@@ -89,7 +88,7 @@ public class SpatialIOPortContainer extends AEBaseContainer {
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.delay++;
             if (this.delay > 15 && this.network != null) {
                 this.delay = 0;

src/main/java/appeng/container/implementations/StorageBusContainer.java

@@ -45,7 +45,6 @@ import appeng.container.slot.OptionalTypeOnlyFakeSlot;
 import appeng.container.slot.RestrictedInputSlot;
 import appeng.core.Api;
 import appeng.parts.misc.StorageBusPart;
-import appeng.util.Platform;
 import appeng.util.helpers.ItemHandlerUtil;
 import appeng.util.iterators.NullIterator;
 
@@ -125,7 +124,7 @@ public class StorageBusContainer extends UpgradeableContainer {
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.setFuzzyMode((FuzzyMode) this.getUpgradeable().getConfigManager().getSetting(Settings.FUZZY_MODE));
             this.setReadWriteMode(
                     (AccessRestriction) this.getUpgradeable().getConfigManager().getSetting(Settings.ACCESS));

src/main/java/appeng/container/implementations/UpgradeableContainer.java

@@ -52,7 +52,6 @@ import appeng.container.slot.RestrictedInputSlot;
 import appeng.items.contents.NetworkToolViewer;
 import appeng.items.tools.NetworkToolItem;
 import appeng.parts.automation.ExportBusPart;
-import appeng.util.Platform;
 
 public class UpgradeableContainer extends AEBaseContainer implements IOptionalSlotHost {
 
@@ -200,7 +199,7 @@ public class UpgradeableContainer extends AEBaseContainer implements IOptionalSl
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             final IConfigManager cm = this.getUpgradeable().getConfigManager();
             this.loadSettingsFromHost(cm);
         }

src/main/java/appeng/container/implementations/VibrationChamberContainer.java

@@ -29,7 +29,6 @@ import appeng.container.guisync.GuiSync;
 import appeng.container.interfaces.IProgressProvider;
 import appeng.container.slot.RestrictedInputSlot;
 import appeng.tile.misc.VibrationChamberBlockEntity;
-import appeng.util.Platform;
 
 public class VibrationChamberContainer extends AEBaseContainer implements IProgressProvider {
 
@@ -65,7 +64,7 @@ public class VibrationChamberContainer extends AEBaseContainer implements IProgr
 
     @Override
     public void sendContentUpdates() {
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.remainingBurnTime = this.vibrationChamber.getMaxBurnTime() <= 0 ? 0
                     : (int) (100.0 * this.vibrationChamber.getBurnTime() / this.vibrationChamber.getMaxBurnTime());
             this.burnSpeed = this.remainingBurnTime <= 0 ? 0 : this.vibrationChamber.getBurnSpeed();

src/main/java/appeng/container/implementations/WirelessTermContainer.java

@@ -28,7 +28,6 @@ import appeng.container.ContainerLocator;
 import appeng.core.AEConfig;
 import appeng.core.localization.PlayerMessages;
 import appeng.helpers.WirelessTerminalGuiObject;
-import appeng.util.Platform;
 
 public class WirelessTermContainer extends MEPortableCellContainer {
 
@@ -57,7 +56,7 @@ public class WirelessTermContainer extends MEPortableCellContainer {
         super.sendContentUpdates();
 
         if (!this.wirelessTerminalGUIObject.rangeCheck()) {
-            if (Platform.isServer() && this.isValidContainer()) {
+            if (isServer() && this.isValidContainer()) {
                 this.getPlayerInv().player.sendSystemMessage(PlayerMessages.OutOfRange.get(), Util.NIL_UUID);
             }
 

src/main/java/appeng/core/sync/BasePacket.java

@@ -34,7 +34,7 @@ import appeng.core.sync.network.INetworkInfo;
 public abstract class BasePacket {
 
     /**
-     * Sadly {@link PacketBuffer#readString()} gets inlined by Proguard which means
+     * Sadly {@link PacketByteBuf#readString()} gets inlined by Proguard which means
      * it's not available on the Server. This field has the default string length
      * that is used for writeString, which then also should be used for readString
      * when it has no special length requirements.

src/main/java/appeng/core/sync/packets/ConfigValuePacket.java

@@ -37,7 +37,7 @@ import appeng.container.AEBaseContainer;
 import appeng.container.implementations.CellWorkbenchContainer;
 import appeng.container.implementations.CraftConfirmContainer;
 import appeng.container.implementations.CraftingCPUContainer;
-import appeng.container.implementations.CraftingStatusContainer;
+import appeng.container.implementations.CraftingCPUCyclingContainer;
 import appeng.container.implementations.LevelEmitterContainer;
 import appeng.container.implementations.NetworkToolContainer;
 import appeng.container.implementations.PatternTermContainer;
@@ -97,12 +97,9 @@ public class ConfigValuePacket extends BasePacket {
             final ItemStack is = player.getStackInHand(hand);
             final IMouseWheelItem si = (IMouseWheelItem) is.getItem();
             si.onWheel(is, this.Value.equals("WheelUp"));
-        } else if (this.Name.equals("Terminal.Cpu") && c instanceof CraftingStatusContainer) {
+        } else if (this.Name.equals("Terminal.Cpu") && c instanceof CraftingCPUCyclingContainer) {
-            final CraftingStatusContainer qk = (CraftingStatusContainer) c;
+            final CraftingCPUCyclingContainer qk = (CraftingCPUCyclingContainer) c;
-            qk.cycleCpu(this.Value.equals("Next"));
+            qk.cycleSelectedCPU(this.Value.equals("Next"));
-        } else if (this.Name.equals("Terminal.Cpu") && c instanceof CraftConfirmContainer) {
-            final CraftConfirmContainer qk = (CraftConfirmContainer) c;
-            qk.cycleCpu(this.Value.equals("Next"));
         } else if (this.Name.equals("Terminal.Start") && c instanceof CraftConfirmContainer) {
             final CraftConfirmContainer qk = (CraftConfirmContainer) c;
             qk.startJob();
@@ -117,13 +114,13 @@ public class ConfigValuePacket extends BasePacket {
             sc.toggleSetting(this.Value, player);
         } else if (this.Name.equals("PriorityHost.Priority") && c instanceof PriorityContainer) {
             final PriorityContainer pc = (PriorityContainer) c;
-            pc.setPriority(Integer.parseInt(this.Value), player);
+            pc.setPriority(Integer.parseInt(this.Value));
         } else if (this.Name.equals("LevelEmitter.Value") && c instanceof LevelEmitterContainer) {
             final LevelEmitterContainer lvc = (LevelEmitterContainer) c;
-            lvc.setLevel(Long.parseLong(this.Value), player);
+            lvc.setReportingValue(Long.parseLong(this.Value));
         } else if (this.Name.equals("FluidLevelEmitter.Value") && c instanceof FluidLevelEmitterContainer) {
             final FluidLevelEmitterContainer lvc = (FluidLevelEmitterContainer) c;
-            lvc.setLevel(Long.parseLong(this.Value), player);
+            lvc.setReportingValue(Long.parseLong(this.Value));
         } else if (this.Name.startsWith("PatternTerminal.") && c instanceof PatternTermContainer) {
             final PatternTermContainer cpt = (PatternTermContainer) c;
             if (this.Name.equals("PatternTerminal.CraftMode")) {
@@ -191,9 +188,7 @@ public class ConfigValuePacket extends BasePacket {
     public void clientPacketData(final INetworkInfo network, final PlayerEntity player) {
         final ScreenHandler c = player.currentScreenHandler;
 
-        if (this.Name.equals("CustomName") && c instanceof AEBaseContainer) {
+        if (this.Name.startsWith("SyncDat.")) {
-            ((AEBaseContainer) c).setCustomName(this.Value);
-        } else if (this.Name.startsWith("SyncDat.")) {
             ((AEBaseContainer) c).stringSync(Integer.parseInt(this.Name.substring(8)), this.Value);
         } else if (this.Name.equals("CraftingStatus") && this.Value.equals("Clear")) {
             final Screen gs = MinecraftClient.getInstance().currentScreen;

src/main/java/appeng/core/sync/packets/JEIRecipePacket.java

@@ -19,6 +19,7 @@
 package appeng.core.sync.packets;
 
 import java.util.Arrays;
+import java.util.stream.Stream;
 
 import javax.annotation.Nullable;
 
@@ -325,15 +326,10 @@ public class JEIRecipePacket extends BasePacket {
      */
     private IAEItemStack findBestMatchingItemStack(Ingredient ingredients, IPartitionList<IAEItemStack> filter,
             IMEMonitor<IAEItemStack> storage, IContainerCraftingPacket cct) {
-        return Arrays.stream(getMatchingStacks(ingredients)).map(AEItemStack::fromItemStack) //
+        Stream<AEItemStack> stacks = Arrays.stream(getMatchingStacks(ingredients))//
-                .filter(r -> r != null && (filter == null || filter.isListed(r))) //
+                .map(AEItemStack::fromItemStack) //
-                .map(s -> {
+                .filter(r -> r != null && (filter == null || filter.isListed(r)));
-                    // Determine the stored count
+        return getMostStored(stacks, storage, cct);
-                    IAEItemStack stored = storage.extractItems(s.copy().setStackSize(Long.MAX_VALUE),
-                            Actionable.SIMULATE, cct.getActionSource());
-                    return Pair.of(s, stored != null ? stored.getStackSize() : 0);
-                }).min((left, right) -> Long.compare(right.getSecond(), left.getSecond()))//
-                .map(Pair::getFirst).orElse(null);
     }
 
     /**
@@ -344,16 +340,30 @@ public class JEIRecipePacket extends BasePacket {
      */
     private IAEItemStack findBestMatchingPattern(Ingredient ingredients, IPartitionList<IAEItemStack> filter,
             ICraftingGrid crafting, IMEMonitor<IAEItemStack> storage, IContainerCraftingPacket cct) {
-        return Arrays.stream(getMatchingStacks(ingredients)).map(AEItemStack::fromItemStack)
+        Stream<IAEItemStack> stacks = Arrays.stream(getMatchingStacks(ingredients))//
-                .filter(r -> r != null && (filter == null || filter.isListed(r)))
+                .map(AEItemStack::fromItemStack)//
-                .map(s -> s.setCraftable(!crafting.getCraftingFor(s, null, 0, null).isEmpty()))
+                .filter(r -> r != null && (filter == null || filter.isListed(r)))//
-                .filter(IAEItemStack::isCraftable).map(s -> {
+                .map(s -> s.setCraftable(!crafting.getCraftingFor(s, null, 0, null).isEmpty()))//
-                    final IAEItemStack stored = storage.extractItems(s, Actionable.SIMULATE, cct.getActionSource());
+                .filter(IAEItemStack::isCraftable);
-                    return s.setStackSize(stored != null ? stored.getStackSize() : 0);
+        return getMostStored(stacks, storage, cct);
-                }).min((left, right) -> {
+    }
-                    final int craftable = Boolean.compare(left.isCraftable(), right.isCraftable());
+
-                    return craftable != 0 ? craftable : Long.compare(right.getStackSize(), left.getStackSize());
+    /**
-                }).orElse(null);
+     * From a stream of AE item stacks, pick the one with the highest available
+     * amount in the network. Returns null if the stream is empty.
+     */
+    private static IAEItemStack getMostStored(Stream<? extends IAEItemStack> stacks, IMEMonitor<IAEItemStack> storage,
+            IContainerCraftingPacket cct) {
+        return stacks//
+                .map(s -> {
+                    // Determine the stored count
+                    IAEItemStack stored = storage.extractItems(s.copy().setStackSize(Long.MAX_VALUE),
+                            Actionable.SIMULATE, cct.getActionSource());
+                    return Pair.of(s, stored != null ? stored.getStackSize() : 0);
+                })//
+                .min((left, right) -> Long.compare(right.getSecond(), left.getSecond()))//
+                .map(Pair::getFirst)//
+                .orElse(null);
     }
 
     private void handleProcessing(ScreenHandler con, IContainerCraftingPacket cct, Recipe<?> recipe) {

src/main/java/appeng/debug/ItemGenBlockEntity.java

@@ -33,9 +33,9 @@ import net.minecraft.world.World;
 
 import alexiil.mc.lib.attributes.AttributeList;
 import alexiil.mc.lib.attributes.Simulation;
+import alexiil.mc.lib.attributes.item.FixedItemInv;
 import alexiil.mc.lib.attributes.item.ItemExtractable;
 import alexiil.mc.lib.attributes.item.filter.ExactItemStackFilter;
-import alexiil.mc.lib.attributes.item.filter.ItemFilter;
 
 import appeng.tile.AEBaseBlockEntity;
 
@@ -43,7 +43,7 @@ public class ItemGenBlockEntity extends AEBaseBlockEntity {
 
     private static final Queue<ItemStack> POSSIBLE_ITEMS = new ArrayDeque<>();
 
-    private final ItemExtractable handler = new QueuedItemHandler();
+    private final QueuedItemHandler handler = new QueuedItemHandler();
 
     public ItemGenBlockEntity(BlockEntityType<?> tileEntityTypeIn) {
         super(tileEntityTypeIn);
@@ -77,22 +77,24 @@ public class ItemGenBlockEntity extends AEBaseBlockEntity {
         to.offer(handler);
     }
 
-    class QueuedItemHandler implements ItemExtractable {
+    static class QueuedItemHandler implements FixedItemInv {
 
         @Override
-        public ItemStack attemptExtraction(ItemFilter itemFilter, int maxAmount, Simulation simulation) {
+        public ItemExtractable getExtractable() {
-            // When item filter asks for a specific item, just return that
+            return (itemFilter, i, simulation) -> {
-            if (itemFilter instanceof ExactItemStackFilter) {
+                // When item filter asks for a specific item, just return that
-                return ((ExactItemStackFilter) itemFilter).stack.copy();
+                if (itemFilter instanceof ExactItemStackFilter) {
-            }
+                    return ((ExactItemStackFilter) itemFilter).stack.copy();
+                }
 
-            final ItemStack is = POSSIBLE_ITEMS.peek();
+                final ItemStack is = POSSIBLE_ITEMS.peek();
 
-            if (is == null || !itemFilter.matches(is)) {
+                if (is == null || !itemFilter.matches(is)) {
-                return ItemStack.EMPTY;
+                    return ItemStack.EMPTY;
-            }
+                }
 
-            return simulation == Simulation.SIMULATE ? is.copy() : this.getNextItem();
+                return simulation == Simulation.SIMULATE ? is.copy() : getNextItem();
+            };
         }
 
         private ItemStack getNextItem() {
@@ -101,7 +103,28 @@ public class ItemGenBlockEntity extends AEBaseBlockEntity {
             POSSIBLE_ITEMS.add(is);
             return is.copy();
         }
-    }
 
-    ;
+        @Override
+        public int getSlotCount() {
+            return 1;
+        }
+
+        @Override
+        public ItemStack getInvStack(int i) {
+            return POSSIBLE_ITEMS.peek().copy();
+        }
+
+        @Override
+        public boolean isItemValidForSlot(int i, ItemStack itemStack) {
+            return false;
+        }
+
+        @Override
+        public boolean setInvStack(int i, ItemStack itemStack, Simulation simulation) {
+            if (itemStack.isEmpty()) {
+                getNextItem(); // Go to next item
+            }
+            return itemStack.isEmpty();
+        }
+    }
 }

src/main/java/appeng/decorative/solid/QuartzGlassBlock.java

@@ -20,7 +20,6 @@ package appeng.decorative.solid;
 
 import net.minecraft.block.AbstractGlassBlock;
 import net.minecraft.block.BlockState;
-import net.minecraft.block.Material;
 import net.minecraft.util.math.Direction;
 
 public class QuartzGlassBlock extends AbstractGlassBlock {

src/main/java/appeng/entity/TinyTNTPrimedRenderer.java

@@ -74,6 +74,6 @@ public class TinyTNTPrimedRenderer extends EntityRenderer<TinyTNTPrimedEntity> {
 
     @Override
     public Identifier getTexture(final TinyTNTPrimedEntity entity) {
-        return SpriteAtlasTexture.BLOCK_ATLAS_TEX;
+        return SpriteAtlasTexture.BLOCK_ATLAS_TEXTURE;
     }
 }

src/main/java/appeng/fluids/client/gui/FluidLevelEmitterScreen.java

@@ -11,8 +11,6 @@ import appeng.client.gui.implementations.NumberEntryWidget;
 import appeng.client.gui.implementations.UpgradeableScreen;
 import appeng.client.gui.widgets.ServerSettingToggleButton;
 import appeng.core.localization.GuiText;
-import appeng.core.sync.network.NetworkHandler;
-import appeng.core.sync.packets.ConfigValuePacket;
 import appeng.fluids.client.gui.widgets.FluidSlotWidget;
 import appeng.fluids.container.FluidLevelEmitterContainer;
 
@@ -28,17 +26,24 @@ public class FluidLevelEmitterScreen extends UpgradeableScreen<FluidLevelEmitter
     public void init() {
         super.init();
 
-        this.level = new NumberEntryWidget(this, 20, 17, 138, 62, NumberEntryType.LEVEL_FLUID_VOLUME,
+        this.level = new NumberEntryWidget(this, 20, 17, 138, 62, NumberEntryType.LEVEL_FLUID_VOLUME);
-                this::onLevelChange);
         this.level.setTextFieldBounds(25, 44, 75);
-        handler.setTextField(this.level);
         this.level.addButtons(children::add, this::addButton);
+        this.level.setValue(handler.getReportingValue());
+        this.level.setOnChange(this::saveReportingValue);
+        this.level.setOnConfirm(this::onClose);
+
+        this.changeFocus(true);
 
         final int y = 40;
         final int x = 80 + 57;
         this.guiSlots.add(new FluidSlotWidget(this.handler.getFluidConfigInventory(), 0, 0, x, y));
     }
 
+    private void saveReportingValue() {
+        this.level.getLongValue().ifPresent(handler::setReportingValue);
+    }
+
     @Override
     protected void addButtons() {
         this.redstoneMode = new ServerSettingToggleButton<>(this.x - 18, this.y + 28, Settings.REDSTONE_EMITTER,
@@ -79,8 +84,4 @@ public class FluidLevelEmitterScreen extends UpgradeableScreen<FluidLevelEmitter
     protected void handleButtonVisibility() {
     }
 
-    private void onLevelChange(long level) {
-        NetworkHandler.instance().sendToServer(new ConfigValuePacket("FluidLevelEmitter.Value", String.valueOf(level)));
-    }
-
 }

src/main/java/appeng/fluids/container/FluidConfigurableContainer.java

@@ -21,7 +21,6 @@ import appeng.container.implementations.UpgradeableContainer;
 import appeng.fluids.helper.FluidSyncHelper;
 import appeng.fluids.util.AEFluidStack;
 import appeng.fluids.util.IAEFluidTank;
-import appeng.util.Platform;
 
 public abstract class FluidConfigurableContainer extends UpgradeableContainer implements IFluidSyncContainer {
     private FluidSyncHelper sync = null;
@@ -76,7 +75,7 @@ public abstract class FluidConfigurableContainer extends UpgradeableContainer im
 
     @Override
     protected void standardDetectAndSendChanges() {
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.getSyncHelper().sendDiff(this.getListeners());
 
             // clear out config items that are no longer valid (eg capacity upgrade removed)

src/main/java/appeng/fluids/container/FluidInterfaceContainer.java

@@ -36,7 +36,6 @@ import appeng.fluids.helper.DualityFluidInterface;
 import appeng.fluids.helper.FluidSyncHelper;
 import appeng.fluids.helper.IFluidInterfaceHost;
 import appeng.fluids.util.IAEFluidTank;
-import appeng.util.Platform;
 
 public class FluidInterfaceContainer extends FluidConfigurableContainer {
 
@@ -81,7 +80,7 @@ public class FluidInterfaceContainer extends FluidConfigurableContainer {
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.tankSync.sendDiff(this.getListeners());
         }
 

src/main/java/appeng/fluids/container/FluidLevelEmitterContainer.java

@@ -1,7 +1,5 @@
 package appeng.fluids.container;
 
-import net.fabricmc.api.EnvType;
-import net.fabricmc.api.Environment;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.network.PacketByteBuf;
@@ -10,13 +8,12 @@ import net.minecraft.screen.ScreenHandlerType;
 import appeng.api.config.RedstoneMode;
 import appeng.api.config.SecurityPermissions;
 import appeng.api.config.Settings;
-import appeng.client.gui.implementations.NumberEntryWidget;
 import appeng.container.ContainerLocator;
-import appeng.container.guisync.GuiSync;
 import appeng.container.implementations.ContainerHelper;
+import appeng.core.sync.network.NetworkHandler;
+import appeng.core.sync.packets.ConfigValuePacket;
 import appeng.fluids.parts.FluidLevelEmitterPart;
 import appeng.fluids.util.IAEFluidTank;
-import appeng.util.Platform;
 
 public class FluidLevelEmitterContainer extends FluidConfigurableContainer {
     public static ScreenHandlerType<FluidLevelEmitterContainer> TYPE;
@@ -25,34 +22,41 @@ public class FluidLevelEmitterContainer extends FluidConfigurableContainer {
             FluidLevelEmitterContainer::new, FluidLevelEmitterPart.class, SecurityPermissions.BUILD);
 
     public static FluidLevelEmitterContainer fromNetwork(int windowId, PlayerInventory inv, PacketByteBuf buf) {
-        return helper.fromNetwork(windowId, inv, buf);
+        return helper.fromNetwork(windowId, inv, buf, (host, container, buffer) -> {
+            container.reportingValue = buffer.readVarLong();
+        });
     }
 
     public static boolean open(PlayerEntity player, ContainerLocator locator) {
-        return helper.open(player, locator);
+        return helper.open(player, locator, (host, buffer) -> {
+            buffer.writeVarLong(host.getReportingValue());
+        });
     }
 
     private final FluidLevelEmitterPart lvlEmitter;
 
-    @Environment(EnvType.CLIENT)
+    // Only synced once on container-open, and only used on client
-    private NumberEntryWidget textField;
+    private long reportingValue;
-    @GuiSync(3)
-    public long EmitterValue = -1;
 
     public FluidLevelEmitterContainer(int id, final PlayerInventory ip, final FluidLevelEmitterPart te) {
         super(TYPE, id, ip, te);
         this.lvlEmitter = te;
     }
 
-    @Environment(EnvType.CLIENT)
+    public long getReportingValue() {
-    public void setTextField(final NumberEntryWidget level) {
+        return reportingValue;
-        this.textField = level;
-        this.textField.setValue(this.EmitterValue);
     }
 
-    public void setLevel(final long l, final PlayerEntity player) {
+    public void setReportingValue(long reportingValue) {
-        this.lvlEmitter.setReportingValue(l);
+        if (isClient()) {
-        this.EmitterValue = l;
+            if (reportingValue != this.reportingValue) {
+                this.reportingValue = reportingValue;
+                NetworkHandler.instance()
+                        .sendToServer(new ConfigValuePacket("FluidLevelEmitter.Value", String.valueOf(reportingValue)));
+            }
+        } else {
+            this.lvlEmitter.setReportingValue(reportingValue);
+        }
     }
 
     @Override
@@ -74,8 +78,7 @@ public class FluidLevelEmitterContainer extends FluidConfigurableContainer {
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
-            this.EmitterValue = this.lvlEmitter.getReportingValue();
             this.setRedStoneMode(
                     (RedstoneMode) this.getUpgradeable().getConfigManager().getSetting(Settings.REDSTONE_EMITTER));
         }
@@ -83,15 +86,6 @@ public class FluidLevelEmitterContainer extends FluidConfigurableContainer {
         this.standardDetectAndSendChanges();
     }
 
-    @Override
-    public void onUpdate(final String field, final Object oldValue, final Object newValue) {
-        if (field.equals("EmitterValue")) {
-            if (this.textField != null) {
-                this.textField.setValue(this.EmitterValue);
-            }
-        }
-    }
-
     @Override
     public IAEFluidTank getFluidConfigInventory() {
         return this.lvlEmitter.getConfig();

src/main/java/appeng/fluids/container/FluidStorageBusContainer.java

@@ -44,7 +44,6 @@ import appeng.container.slot.RestrictedInputSlot;
 import appeng.core.Api;
 import appeng.fluids.parts.FluidStorageBusPart;
 import appeng.fluids.util.IAEFluidTank;
-import appeng.util.Platform;
 import appeng.util.iterators.NullIterator;
 
 /**
@@ -129,7 +128,7 @@ public class FluidStorageBusContainer extends FluidConfigurableContainer {
     public void sendContentUpdates() {
         this.verifyPermissions(SecurityPermissions.BUILD, false);
 
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.setFuzzyMode((FuzzyMode) this.getUpgradeable().getConfigManager().getSetting(Settings.FUZZY_MODE));
             this.setReadWriteMode(
                     (AccessRestriction) this.getUpgradeable().getConfigManager().getSetting(Settings.ACCESS));

src/main/java/appeng/fluids/container/FluidTerminalContainer.java

@@ -124,7 +124,7 @@ public class FluidTerminalContainer extends AEBaseContainer
         this.clientCM.registerSetting(Settings.SORT_BY, SortOrder.NAME);
         this.clientCM.registerSetting(Settings.SORT_DIRECTION, SortDir.ASCENDING);
         this.clientCM.registerSetting(Settings.VIEW_MODE, ViewItems.ALL);
-        if (Platform.isServer()) {
+        if (isServer()) {
             this.serverCM = terminal.getConfigManager();
             this.monitor = terminal
                     .getInventory(Api.instance().storage().getStorageChannel(IFluidStorageChannel.class));
@@ -196,7 +196,7 @@ public class FluidTerminalContainer extends AEBaseContainer
     }
 
     private void queueInventory(final ScreenHandlerListener c) {
-        if (Platform.isServer() && c instanceof PlayerEntity && this.monitor != null) {
+        if (isServer() && c instanceof PlayerEntity && this.monitor != null) {
             try {
                 MEFluidInventoryUpdatePacket piu = new MEFluidInventoryUpdatePacket();
                 final IItemList<IAEFluidStack> monitorCache = this.monitor.getStorageList();
@@ -221,14 +221,14 @@ public class FluidTerminalContainer extends AEBaseContainer
 
     @Override
     public IConfigManager getConfigManager() {
-        if (Platform.isServer()) {
+        if (isServer()) {
             return this.serverCM;
         }
         return this.clientCM;
     }
 
     public void setTargetStack(final IAEFluidStack stack) {
-        if (Platform.isClient()) {
+        if (isClient()) {
             if (stack == null && this.clientRequestedTargetFluid == null) {
                 return;
             }
@@ -251,7 +251,7 @@ public class FluidTerminalContainer extends AEBaseContainer
 
     @Override
     public void sendContentUpdates() {
-        if (Platform.isServer()) {
+        if (isServer()) {
             if (this.monitor != this.terminal
                     .getInventory(Api.instance().storage().getStorageChannel(IFluidStorageChannel.class))) {
                 this.setValidContainer(false);

src/main/java/appeng/fluids/helper/DualityFluidInterface.java

@@ -18,13 +18,14 @@
 
 package appeng.fluids.helper;
 
+import java.math.RoundingMode;
 import java.util.Optional;
 
 import net.minecraft.block.entity.BlockEntity;
 import net.minecraft.nbt.CompoundTag;
 
 import alexiil.mc.lib.attributes.AttributeList;
-import alexiil.mc.lib.attributes.fluid.volume.FluidVolume;
+import alexiil.mc.lib.attributes.fluid.amount.FluidAmount;
 import alexiil.mc.lib.attributes.item.FixedItemInv;
 
 import appeng.api.config.Actionable;
@@ -319,8 +320,8 @@ public class DualityFluidInterface
                 toStore.setStackSize(-toStore.getStackSize());
 
                 // make sure strange things didn't happen...
-                final FluidVolume canExtract = this.tanks.drain(slot, toStore.getFluidStack(), false);
+                final FluidAmount canExtract = this.tanks.drain(slot, toStore.getFluidStack(), false);
-                if (canExtract.isEmpty() || canExtract.getAmount() != toStore.getStackSize()) {
+                if (canExtract.isZero() || canExtract.asLong(1000, RoundingMode.DOWN) != toStore.getStackSize()) {
                     changed = true;
                 } else {
                     IAEFluidStack notStored = Platform.poweredInsert(src, dest, toStore, this.interfaceRequestSource);
@@ -329,8 +330,8 @@ public class DualityFluidInterface
                     if (toStore.getStackSize() > 0) {
                         // extract items!
                         changed = true;
-                        final FluidVolume removed = this.tanks.drain(slot, toStore.getFluidStack(), true);
+                        final FluidAmount removed = this.tanks.drain(slot, toStore.getFluidStack(), true);
-                        if (removed.isEmpty() || toStore.getStackSize() != removed.getAmount()) {
+                        if (removed.isZero() || toStore.getStackSize() != removed.asLong(1000, RoundingMode.DOWN)) {
                             throw new IllegalStateException("bad attempt at managing tanks. ( drain )");
                         }
                     }

src/main/java/appeng/fluids/util/AEFluidInventory.java

@@ -19,6 +19,14 @@ import appeng.core.AELog;
 import appeng.util.Platform;
 
 public class AEFluidInventory implements IAEFluidTank {
+
+    /**
+     * While this may seem redundant, it helps since this class heavily mixes AE
+     * fluids stacks, which use null to represent "nothing", and Minecraft's
+     * FluidStack, which uses #isEmpty() to represent nothing.
+     */
+    private static final IAEFluidStack EMPTY_AE_FLUIDSTACK = null;
+
     private final IAEFluidStack[] fluids;
     private final IAEFluidInventory handler;
     private final int capacity;
@@ -48,13 +56,13 @@ public class AEFluidInventory implements IAEFluidTank {
     public void setFluidInSlot(final int slot, final IAEFluidStack fluid) {
         if (slot >= 0 && slot < this.getSlots()) {
             if (Objects.equals(this.fluids[slot], fluid)) {
-                if (fluid != null && fluid.getStackSize() != this.fluids[slot].getStackSize()) {
+                if (fluid != EMPTY_AE_FLUIDSTACK && fluid.getStackSize() != this.fluids[slot].getStackSize()) {
                     this.fluids[slot].setStackSize(Math.min(fluid.getStackSize(), this.capacity));
                     this.onContentChanged(slot);
                 }
             } else {
-                if (fluid == null) {
+                if (fluid == EMPTY_AE_FLUIDSTACK) {
-                    this.fluids[slot] = null;
+                    this.fluids[slot] = EMPTY_AE_FLUIDSTACK;
                 } else {
                     this.fluids[slot] = fluid.copy();
                     this.fluids[slot].setStackSize(Math.min(fluid.getStackSize(), this.capacity));
@@ -76,7 +84,7 @@ public class AEFluidInventory implements IAEFluidTank {
         if (slot >= 0 && slot < this.getSlots()) {
             return this.fluids[slot];
         }
-        return null;
+        return EMPTY_AE_FLUIDSTACK;
     }
 
     @Override
@@ -99,7 +107,7 @@ public class AEFluidInventory implements IAEFluidTank {
         if (tank < 0 || tank >= fluids.length) {
             return FluidVolumeUtil.EMPTY;
         }
-        return fluids[tank] == null ? FluidVolumeUtil.EMPTY : fluids[tank].getFluidStack();
+        return fluids[tank] == EMPTY_AE_FLUIDSTACK ? FluidVolumeUtil.EMPTY : fluids[tank].getFluidStack();
     }
 
     @Override
@@ -119,13 +127,13 @@ public class AEFluidInventory implements IAEFluidTank {
 
         final IAEFluidStack fluid = this.fluids[slot];
 
-        if (fluid != null && !fluid.getFluidStack().equals(resource)) {
+        if (fluid != EMPTY_AE_FLUIDSTACK && !fluid.getFluidStack().equals(resource)) {
             return 0;
         }
 
         int amountToStore = this.capacity;
 
-        if (fluid != null) {
+        if (fluid != EMPTY_AE_FLUIDSTACK) {
             amountToStore -= fluid.getStackSize();
         }
 
@@ -143,19 +151,19 @@ public class AEFluidInventory implements IAEFluidTank {
         return amountToStore;
     }
 
-    public FluidVolume drain(final int slot, final FluidVolume resource, final boolean doDrain) {
+    public FluidAmount drain(final int slot, final FluidVolume resource, final boolean doDrain) {
         final IAEFluidStack fluid = this.fluids[slot];
-        if (resource.isEmpty() || fluid == null || !fluid.getFluidStack().equals(resource)) {
+        if (resource.isEmpty() || fluid == EMPTY_AE_FLUIDSTACK || !fluid.getFluidStack().equals(resource)) {
-            return null;
+            return FluidAmount.ZERO;
         }
         int toDrain = (int) resource.getAmount_F().asLong(1000, RoundingMode.DOWN);
         return this.drain(slot, toDrain, doDrain);
     }
 
-    public FluidVolume drain(final int slot, final int maxDrain, boolean doDrain) {
+    public FluidAmount drain(final int slot, final int maxDrain, boolean doDrain) {
         final IAEFluidStack fluid = this.fluids[slot];
-        if (fluid == null || maxDrain <= 0) {
+        if (fluid == EMPTY_AE_FLUIDSTACK || maxDrain <= 0) {
-            return null;
+            return FluidAmount.ZERO;
         }
 
         int drained = maxDrain;
@@ -163,15 +171,15 @@ public class AEFluidInventory implements IAEFluidTank {
             drained = (int) fluid.getStackSize();
         }
 
-        FluidVolume stack = fluid.getFluidStack().withAmount(FluidAmount.of(drained, 1000));
+        FluidAmount amount = FluidAmount.of(drained, 1000);
         if (doDrain) {
             fluid.setStackSize(fluid.getStackSize() - drained);
             if (fluid.getStackSize() <= 0) {
-                this.fluids[slot] = null;
+                this.fluids[slot] = EMPTY_AE_FLUIDSTACK;
             }
             this.onContentChanged(slot);
         }
-        return stack;
+        return amount;
     }
 
     public void writeToNBT(final CompoundTag data, final String name) {
@@ -185,7 +193,7 @@ public class AEFluidInventory implements IAEFluidTank {
             try {
                 final CompoundTag c = new CompoundTag();
 
-                if (this.fluids[x] != null) {
+                if (this.fluids[x] != EMPTY_AE_FLUIDSTACK) {
                     this.fluids[x].writeToNBT(c);
                 }
 

src/main/java/appeng/hooks/TickHandler.java

@@ -35,8 +35,8 @@ import com.google.common.base.Stopwatch;
 import com.google.common.collect.LinkedListMultimap;
 import com.google.common.collect.Multimap;
 
-import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents;
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents;
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerWorldEvents;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.world.ServerWorld;
 import net.minecraft.world.World;
@@ -73,7 +73,7 @@ public class TickHandler {
         ServerTickEvents.END_SERVER_TICK.register(this::onAfterServerTick);
         ServerTickEvents.START_WORLD_TICK.register(this::onBeforeWorldTick);
         ServerTickEvents.END_WORLD_TICK.register(this::onAfterWorldTick);
-        ServerLifecycleEvents.SERVER_STOPPING.register(this::onServerStopping);
+        ServerWorldEvents.UNLOAD.register(this::onUnloadWorld);
     }
 
     public static TickHandler instance() {
@@ -135,38 +135,13 @@ public class TickHandler {
         this.getRepo().clear();
     }
 
-// FIXME FABRIC It does not look like worlds can ever unload in Fabric.
+    public void onUnloadWorld(MinecraftServer server, ServerWorld world) {
-// FIXME FABRIC    public void unloadWorld(final WorldEvent.Unload ev) {
-// FIXME FABRIC        if (Platform.isServer()) // for no there is no reason to care about this on the client...
-// FIXME FABRIC        {
-// FIXME FABRIC            final List<IGridNode> toDestroy = new ArrayList<>();
-// FIXME FABRIC
-// FIXME FABRIC            this.getRepo().updateNetworks();
-// FIXME FABRIC            for (final Grid g : this.getRepo().networks) {
-// FIXME FABRIC                for (final IGridNode n : g.getNodes()) {
-// FIXME FABRIC                    if (n.getWorld() == ev.getWorld()) {
-// FIXME FABRIC                        toDestroy.add(n);
-// FIXME FABRIC                    }
-// FIXME FABRIC                }
-// FIXME FABRIC            }
-// FIXME FABRIC
-// FIXME FABRIC            for (final IGridNode n : toDestroy) {
-// FIXME FABRIC                n.destroy();
-// FIXME FABRIC            }
-// FIXME FABRIC        }
-// FIXME FABRIC    }
-
-    /**
-     * This is primarily useful for an integrated server being stopped, and can be
-     * fully replaced by the event above once world unload events hit.
-     */
-    private void onServerStopping(MinecraftServer server) {
         final List<IGridNode> toDestroy = new ArrayList<>();
-        this.server.updateNetworks();
+
-        for (final Grid g : this.server.networks) {
+        this.getRepo().updateNetworks();
+        for (final Grid g : this.getRepo().networks) {
             for (final IGridNode n : g.getNodes()) {
-                WorldAccess nodeWorld = n.getWorld();
+                if (n.getWorld() == world) {
-                if (nodeWorld instanceof ServerWorld && ((ServerWorld) nodeWorld).getServer() == server) {
                     toDestroy.add(n);
                 }
             }

src/main/java/appeng/integration/modules/jei/CraftingRecipeTransferHandler.java

@@ -20,7 +20,6 @@ package appeng.integration.modules.jei;
 
 import me.shedaniel.rei.api.AutoTransferHandler;
 import me.shedaniel.rei.api.RecipeDisplay;
-import me.shedaniel.rei.api.TransferRecipeDisplay;
 
 import appeng.container.implementations.CraftingTermContainer;
 

src/main/java/appeng/integration/modules/jei/PatternRecipeTransferHandler.java

@@ -20,7 +20,6 @@ package appeng.integration.modules.jei;
 
 import me.shedaniel.rei.api.AutoTransferHandler;
 import me.shedaniel.rei.api.RecipeDisplay;
-import me.shedaniel.rei.api.TransferRecipeDisplay;
 import me.shedaniel.rei.plugin.DefaultPlugin;
 
 import appeng.container.implementations.PatternTermContainer;

src/main/java/appeng/integration/modules/jei/RecipeTransferHandler.java

@@ -111,7 +111,7 @@ abstract class RecipeTransferHandler<T extends ScreenHandler & IContainerCraftin
                     if (i < flatIngredients.size()) {
                         ItemStack displayedIngredient = first.getItemStack();
                         if (displayedIngredient != null) {
-                            flatIngredients.set(i, Ingredient.method_26964(Stream.of(displayedIngredient)));
+                            flatIngredients.set(i, Ingredient.ofStacks(Stream.of(displayedIngredient)));
                         }
                     }
                 }

src/main/java/appeng/integration/modules/waila/part/Tracer.java

@@ -47,6 +47,6 @@ public final class Tracer {
         BlockState blockState = world.getBlockState(pos);
 
         LookDirection playerRay = Platform.getPlayerRay(player);
-        return blockState.getCollisionShape(world, pos).rayTrace(playerRay.getA(), playerRay.getB(), pos);
+        return blockState.getCollisionShape(world, pos).raycast(playerRay.getA(), playerRay.getB(), pos);
     }
 }

src/main/java/appeng/items/misc/EncodedPatternItem.java

@@ -38,7 +38,6 @@ import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.ListTag;
 import net.minecraft.nbt.Tag;
 import net.minecraft.text.LiteralText;
-import net.minecraft.text.MutableText;
 import net.minecraft.text.Text;
 import net.minecraft.util.ActionResult;
 import net.minecraft.util.Formatting;

src/main/java/appeng/items/tools/powered/EntropyManipulatorItem.java

@@ -54,7 +54,7 @@ import net.minecraft.util.hit.BlockHitResult;
 import net.minecraft.util.hit.HitResult;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Direction;
-import net.minecraft.world.RayTraceContext;
+import net.minecraft.world.RaycastContext;
 import net.minecraft.world.World;
 
 import appeng.api.config.Actionable;
@@ -219,7 +219,7 @@ public class EntropyManipulatorItem extends AEBasePoweredItem implements IBlockT
     // considered for onItemUse
     @Override
     public TypedActionResult<ItemStack> use(final World w, final PlayerEntity p, final Hand hand) {
-        final BlockHitResult target = rayTrace(w, p, RayTraceContext.FluidHandling.ANY);
+        final BlockHitResult target = raycast(w, p, RaycastContext.FluidHandling.ANY);
 
         if (target.getType() != HitResult.Type.BLOCK) {
             BlockPos pos = target.getBlockPos();

src/main/java/appeng/items/tools/powered/MatterCannonItem.java

@@ -48,7 +48,7 @@ import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Box;
 import net.minecraft.util.math.Direction;
 import net.minecraft.util.math.Vec3d;
-import net.minecraft.world.RayTraceContext;
+import net.minecraft.world.RaycastContext;
 import net.minecraft.world.World;
 
 import alexiil.mc.lib.attributes.item.FixedItemInv;
@@ -200,7 +200,7 @@ public class MatterCannonItem extends AEBasePoweredItem implements IStorageCell<
                 final float f1 = 0.3F;
 
                 final Box boundingBox = entity1.getBoundingBox().expand(f1, f1, f1);
-                final Vec3d intersection = boundingBox.rayTrace(Vec3d, Vec3d1).orElse(null);
+                final Vec3d intersection = boundingBox.raycast(Vec3d, Vec3d1).orElse(null);
 
                 if (intersection != null) {
                     final double nd = Vec3d.squaredDistanceTo(intersection);
@@ -214,9 +214,9 @@ public class MatterCannonItem extends AEBasePoweredItem implements IStorageCell<
             }
         }
 
-        RayTraceContext rayTraceContext = new RayTraceContext(Vec3d, Vec3d1, RayTraceContext.ShapeType.COLLIDER,
+        RaycastContext rayTraceContext = new RaycastContext(Vec3d, Vec3d1, RaycastContext.ShapeType.COLLIDER,
-                RayTraceContext.FluidHandling.NONE, p);
+                RaycastContext.FluidHandling.NONE, p);
-        HitResult pos = w.rayTrace(rayTraceContext);
+        HitResult pos = w.raycast(rayTraceContext);
 
         final Vec3d vec = new Vec3d(d0, d1, d2);
         if (entity != null && pos.getType() != HitResult.Type.MISS && pos.getPos().squaredDistanceTo(vec) > closest) {
@@ -307,7 +307,7 @@ public class MatterCannonItem extends AEBasePoweredItem implements IStorageCell<
                         final float f1 = 0.3F;
 
                         final Box boundingBox = entity1.getBoundingBox().expand(f1, f1, f1);
-                        final Vec3d intersection = boundingBox.rayTrace(Vec3d, Vec3d1).orElse(null);
+                        final Vec3d intersection = boundingBox.raycast(Vec3d, Vec3d1).orElse(null);
 
                         if (intersection != null) {
                             final double nd = Vec3d.squaredDistanceTo(intersection);
@@ -322,10 +322,10 @@ public class MatterCannonItem extends AEBasePoweredItem implements IStorageCell<
                 }
             }
 
-            RayTraceContext rayTraceContext = new RayTraceContext(Vec3d, Vec3d1, RayTraceContext.ShapeType.COLLIDER,
+            RaycastContext rayTraceContext = new RaycastContext(Vec3d, Vec3d1, RaycastContext.ShapeType.COLLIDER,
-                    RayTraceContext.FluidHandling.NONE, p);
+                    RaycastContext.FluidHandling.NONE, p);
             final Vec3d vec = new Vec3d(d0, d1, d2);
-            HitResult pos = w.rayTrace(rayTraceContext);
+            HitResult pos = w.raycast(rayTraceContext);
             if (entity != null && pos.getType() != HitResult.Type.MISS
                     && pos.getPos().squaredDistanceTo(vec) > closest) {
                 pos = new EntityHitResult(entity, entityIntersection);

src/main/java/appeng/me/GridNode.java

@@ -327,8 +327,9 @@ public class GridNode implements IGridNode, IPathItem {
 
     @Override
     public void setPlayerID(final int playerID) {
-        if (playerID >= 0) {
+        if (playerID >= 0 && this.playerID != playerID) {
             this.playerID = playerID;
+            gridProxy.onGridNotification(GridNotification.OWNER_CHANGED);
         }
     }
 

src/main/java/appeng/me/cache/CraftingGridCache.java

@@ -96,7 +96,11 @@ public class CraftingGridCache
             nextDetail) -> nextDetail.getPriority() - firstDetail.getPriority();
 
     static {
-        final ThreadFactory factory = ar -> new Thread(ar, "AE Crafting Calculator");
+        final ThreadFactory factory = ar -> {
+            final Thread crafting = new Thread(ar, "AE Crafting Calculator");
+            crafting.setDaemon(true);
+            return crafting;
+        };
 
         CRAFTING_POOL = Executors.newCachedThreadPool(factory);
     }

src/main/java/appeng/me/cache/SecurityCache.java

@@ -81,8 +81,16 @@ public class SecurityCache implements ISecurityGrid {
     private void updateSecurityKey() {
         final long lastCode = this.securityKey;
 
+        /**
+         * Placing a security station will propagate the security station's owner to all
+         * connected grid nodes to prevent the network from not reforming due to
+         * different owners later.
+         */
+        int newOwner = -1;
         if (this.securityProvider.size() == 1) {
-            this.securityKey = this.securityProvider.get(0).getSecurityKey();
+            ISecurityProvider securityProvider = this.securityProvider.get(0);
+            this.securityKey = securityProvider.getSecurityKey();
+            newOwner = securityProvider.getOwner();
         } else {
             this.securityKey = -1;
         }
@@ -90,7 +98,11 @@ public class SecurityCache implements ISecurityGrid {
         if (lastCode != this.securityKey) {
             this.getGrid().postEvent(new MENetworkSecurityChange());
             for (final IGridNode n : this.getGrid().getNodes()) {
-                ((GridNode) n).setLastSecurityKey(this.securityKey);
+                GridNode gridNode = (GridNode) n;
+                gridNode.setLastSecurityKey(this.securityKey);
+                if (gridNode.getPlayerID() != newOwner) {
+                    gridNode.setPlayerID(newOwner);
+                }
             }
         }
     }

src/main/java/appeng/me/helpers/AENetworkProxy.java

@@ -279,6 +279,11 @@ public class AENetworkProxy implements IGridBlock {
 
     @Override
     public void onGridNotification(final GridNotification notification) {
+        if (notification == GridNotification.OWNER_CHANGED) {
+            gp.saveChanges();
+            return;
+        }
+
         if (this.gp instanceof CablePart) {
             ((CablePart) this.gp).markForUpdate();
         }

src/main/java/appeng/me/helpers/IGridProxyable.java

@@ -28,4 +28,7 @@ public interface IGridProxyable extends IGridHost {
     DimensionalCoord getLocation();
 
     void gridChanged();
+
+    void saveChanges();
+
 }

src/main/java/appeng/mixins/spatial/BuiltinBiomesMixin.java

@@ -12,7 +12,7 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 import net.minecraft.util.registry.BuiltinRegistries;
 import net.minecraft.util.registry.RegistryKey;
 import net.minecraft.world.biome.Biome;
-import net.minecraft.world.biome.Biomes;
+import net.minecraft.world.biome.BuiltinBiomes;
 
 import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
 
@@ -23,21 +23,21 @@ import appeng.spatial.SpatialStorageDimensionIds;
  * This only needs to be here because the server-side will create a dynamic
  * registry manager long before our mod is initialized.
  */
-@Mixin(Biomes.class)
+@Mixin(BuiltinBiomes.class)
-public class BiomesMixin {
+public class BuiltinBiomesMixin {
 
     @Unique
     private static final Logger LOGGER = LogManager.getLogger();
 
     @Shadow
-    private static Int2ObjectMap<RegistryKey<Biome>> BIOMES;
+    private static Int2ObjectMap<RegistryKey<Biome>> BY_RAW_ID;
 
     @Inject(method = "<clinit>", at = @At("TAIL"))
     private static void registerBiomes(CallbackInfo ci) {
         BuiltinRegistries.add(BuiltinRegistries.BIOME, SpatialStorageDimensionIds.BIOME_KEY.getValue(),
                 SpatialStorageBiome.INSTANCE);
         int rawId = BuiltinRegistries.BIOME.getRawId(SpatialStorageBiome.INSTANCE);
-        RegistryKey<Biome> prev = BIOMES.put(rawId, SpatialStorageDimensionIds.BIOME_KEY);
+        RegistryKey<Biome> prev = BY_RAW_ID.put(rawId, SpatialStorageDimensionIds.BIOME_KEY);
         if (prev != null) {
             LOGGER.warn("Biome with raw-id {} was already registered: {}", rawId, prev);
         }

src/main/java/appeng/mixins/spatial/DimensionTypeMixin.java

@@ -49,7 +49,7 @@ public class DimensionTypeMixin {
                 dimensionType);
     }
 
-    @Inject(method = "method_28517", at = @At("RETURN"))
+    @Inject(method = "createDefaultDimensionOptions", at = @At("RETURN"))
     private static void buildDimensionRegistry(Registry<DimensionType> dimensionTypes, Registry<Biome> biomes,
             Registry<ChunkGeneratorSettings> chunkGeneratorSettings, long seed,
             CallbackInfoReturnable<SimpleRegistry<DimensionOptions>> cir) {

src/main/java/appeng/mixins/tags/FluidTagsAccessor.java

@@ -8,7 +8,6 @@ import net.minecraft.fluid.Fluid;
 import net.minecraft.tag.FluidTags;
 import net.minecraft.tag.RequiredTagList;
 import net.minecraft.tag.Tag;
-import net.minecraft.tag.TagGroup;
 
 @Mixin(FluidTags.class)
 public interface FluidTagsAccessor {