Pattern Rendering and other Rendering

src/main/java/appeng/tile/inventory/AppEngInternalInventory.java

@@ -19,6 +19,9 @@
 package appeng.tile.inventory;
 
 import alexiil.mc.lib.attributes.Simulation;
+import alexiil.mc.lib.attributes.item.FixedItemInv;
+import alexiil.mc.lib.attributes.item.LimitedFixedItemInv;
+import alexiil.mc.lib.attributes.item.compat.FixedInventoryVanillaWrapper;
 import alexiil.mc.lib.attributes.item.filter.ConstantItemFilter;
 import alexiil.mc.lib.attributes.item.filter.ItemFilter;
 import alexiil.mc.lib.attributes.item.impl.DirectFixedItemInv;
@@ -61,6 +64,29 @@ public class AppEngInternalInventory extends DirectFixedItemInv implements Itera
         this.filter = filter;
     }
 
+    public FixedItemInv createFiltered(IAEItemFilter filter) {
+        LimitedFixedItemInv limitedFixedInv = this.createLimitedFixedInv();
+        for (int i = 0; i < getSlotCount(); i++) {
+            final int slot = i;
+            limitedFixedInv.getRule(i)
+                .filterExtracts(stack -> filter.allowExtract(this, slot, stack.getCount()));
+            limitedFixedInv.getRule(i)
+                .filterInserts(stack -> {
+                    if (stack.isEmpty()) {
+                        ItemStack current = this.getInvStack(slot);
+                        if (current.isEmpty()) {
+                            return true; // Replacing empty with empty... okay
+                        }
+                        return filter.allowExtract(this, slot, current.getCount());
+                    } else {
+                        return filter.allowInsert(this, slot, stack);
+                    }
+                });
+        }
+
+        return limitedFixedInv;
+    }
+
     @Override
     public int getMaxAmount(int slot, ItemStack stack) {
         return Math.min(maxStack[slot], super.getMaxAmount(slot, stack));

src/main/java/appeng/tile/misc/ChargerBlockEntity.java

@@ -61,7 +61,9 @@ public class ChargerBlockEntity extends AENetworkPowerBlockEntity implements ICr
     private static final int POWER_THRESHOLD = POWER_MAXIMUM_AMOUNT - 1;
     private static final int POWER_PER_CRANK_TURN = 160;
 
-    private final AppEngInternalInventory inv = new AppEngInternalInventory(this, 1, 1, new ChargerInvFilter());
+    private final AppEngInternalInventory inv = new AppEngInternalInventory(this, 1, 1);
+
+    private final FixedItemInv externalInv = inv.createFiltered(new ChargerInvFilter());
 
     public ChargerBlockEntity(BlockEntityType<?> tileEntityTypeIn) {
         super(tileEntityTypeIn);
@@ -134,7 +136,7 @@ public class ChargerBlockEntity extends AENetworkPowerBlockEntity implements ICr
 
     @Override
     public FixedItemInv getInternalInventory() {
-        return this.inv;
+        return externalInv;
     }
 
     @Override

src/main/java/appeng/tile/misc/SkyCompassBlockEntity.java

@@ -18,6 +18,7 @@
 
 package appeng.tile.misc;
 
+import appeng.client.render.model.AEModelData;
 import net.minecraft.block.entity.BlockEntityType;
 
 import appeng.tile.AEBaseBlockEntity;
@@ -28,4 +29,9 @@ public class SkyCompassBlockEntity extends AEBaseBlockEntity {
         super(tileEntityTypeIn);
     }
 
+    @Override
+    public Object getRenderAttachmentData() {
+        // For compasses, the forward/up are flipped
+        return new AEModelData(getForward(), getUp());
+    }
 }