Fix several bugs with fluids (null vs. EMPTY).

Fix IAEFluidStack NBT serialization.
Fix fluid export bus not exporting.
Fix fluid formation planes.
Fix fluid annihilation planes.

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

@@ -71,7 +71,6 @@ public class PacketCompressedNBT extends AppEngPacket {
         }
     }
 
-    // FIXME: this is pointless, PacketBuffer.writeNBT will already compress
     // api
     public PacketCompressedNBT(final CompoundNBT din) throws IOException {
 

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

@@ -18,6 +18,8 @@
 
 package appeng.core.sync.packets;
 
+import java.util.EnumSet;
+
 import io.netty.buffer.Unpooled;
 
 import net.minecraft.entity.player.PlayerEntity;
@@ -25,8 +27,12 @@ import net.minecraft.entity.player.ServerPlayerEntity;
 import net.minecraft.network.PacketBuffer;
 
 import appeng.api.config.Settings;
+import appeng.api.util.IConfigManager;
+import appeng.api.util.IConfigurableObject;
+import appeng.container.AEBaseContainer;
 import appeng.core.sync.AppEngPacket;
 import appeng.core.sync.network.INetworkInfo;
+import appeng.util.EnumCycler;
 
 public final class PacketConfigButton extends AppEngPacket {
     private final Settings option;
@@ -54,18 +60,16 @@ public final class PacketConfigButton extends AppEngPacket {
     @Override
     public void serverPacketData(final INetworkInfo manager, final PlayerEntity player) {
         final ServerPlayerEntity sender = (ServerPlayerEntity) player;
-        // FIXME if( sender.openContainer instanceof AEBaseContainer )
-        // FIXME {
-        // FIXME final AEBaseContainer baseContainer = (AEBaseContainer)
-        // sender.openContainer;
-        // FIXME if( baseContainer.getTarget() instanceof IConfigurableObject )
-        // FIXME {
-        // FIXME final IConfigManager cm = ( (IConfigurableObject)
-        // baseContainer.getTarget() ).getConfigManager();
-        // FIXME final Enum<?> newState = EnumCycler.rotateEnum( cm.getSetting(
-        // this.option ), this.rotationDirection, this.option.getPossibleValues() );
-        // FIXME cm.putSetting( this.option, newState );
-        // FIXME }
-        // FIXME }
+        if (sender.openContainer instanceof AEBaseContainer) {
+            final AEBaseContainer baseContainer = (AEBaseContainer) sender.openContainer;
+            if (baseContainer.getTarget() instanceof IConfigurableObject) {
+                final IConfigManager cm = ((IConfigurableObject) baseContainer.getTarget()).getConfigManager();
+                Enum setting = cm.getSetting(this.option);
+                Enum newState = EnumCycler.rotateEnum(setting, this.rotationDirection,
+                        (EnumSet) this.option.getPossibleValues());
+                cm.putSetting(this.option, newState);
+            }
+        }
     }
+
 }

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

@@ -24,6 +24,7 @@ import java.io.OutputStream;
 import java.nio.BufferOverflowException;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.zip.DeflaterOutputStream;
 import java.util.zip.GZIPInputStream;
 import java.util.zip.GZIPOutputStream;
 

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

@@ -23,10 +23,10 @@ import io.netty.buffer.Unpooled;
 import net.minecraft.client.Minecraft;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.network.PacketBuffer;
-import net.minecraft.world.World;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 
+import appeng.client.render.effects.MatterCannonFX;
 import appeng.core.sync.AppEngPacket;
 import appeng.core.sync.network.INetworkInfo;
 
@@ -82,14 +82,9 @@ public class PacketMatterCannon extends AppEngPacket {
     @OnlyIn(Dist.CLIENT)
     public void clientPacketData(final INetworkInfo network, final PlayerEntity player) {
         try {
-
-            final World world = Minecraft.getInstance().world;
             for (int a = 1; a < this.len; a++) {
-                // FIXME final MatterCannonFX fx = new MatterCannonFX( world, this.x + this.dx *
-                // a, this.y + this.dy * a, this.z + this.dz * a, new ItemStack( Items.DIAMOND )
-                // );
-
-                // FIXME Minecraft.getInstance().particles.addEffect( fx );
+                Minecraft.getInstance().particles.addParticle(MatterCannonFX.TYPE, this.x + this.dx * a,
+                        this.y + this.dy * a, this.z + this.dz * a, 0, 0, 0);
             }
         } catch (final Exception ignored) {
         }