Make cakes pull the bites from the item stack NBT if available

CHANGELOG.md

@@ -28,6 +28,8 @@ but major versions still indicate breaking changes to worlds etc.
   [Blocks to Parts](https://github.com/Juuxel/BlocksToParts).
 - Updated to Minecraft 1.18.1.
 - Reduced the amount of mixins dramatically thanks to LibMultiPart updates.
+- Cakes placed in multipart containers now get the proper bite count from
+  the item's `BlockStateTag` NBT data
 
 ### Fixed
 - Fix torch luminance being 15 instead of 14

src/main/java/juuxel/vanillaparts/MultipartItemTweak.java

@@ -26,6 +26,7 @@
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
+import net.minecraft.block.CakeBlock;
 import net.minecraft.block.DyedCarpetBlock;
 import net.minecraft.block.FenceBlock;
 import net.minecraft.block.LeverBlock;
@@ -38,6 +39,8 @@
 import net.minecraft.item.ItemPlacementContext;
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.ItemUsageContext;
+import net.minecraft.nbt.NbtCompound;
+import net.minecraft.nbt.NbtElement;
 import net.minecraft.sound.BlockSoundGroup;
 import net.minecraft.sound.SoundCategory;
 import net.minecraft.util.ActionResult;
@@ -102,8 +105,17 @@ public ActionResult interact(PlayerEntity player, World world, Hand hand, BlockH
             } else if (block instanceof FenceBlock) {
                 offer = handleFences(world, hit, pos, block);
             } else if (block == Blocks.CAKE) {
-                // TODO: Pull the bites from the block state tag
-                offer = handleSimple(world, pos, block, holder -> new CakePart(VpParts.CAKE, holder));
+                NbtCompound blockStateTag = stack.getSubNbt("BlockStateTag");
+                String bitesProperty = CakeBlock.BITES.getName();
+                int bites;
+
+                if (blockStateTag != null && blockStateTag.contains(bitesProperty, NbtElement.NUMBER_TYPE)) {
+                    bites = blockStateTag.getInt(bitesProperty);
+                } else {
+                     bites = 0;
+                }
+
+                offer = handleSimple(world, pos, block, holder -> new CakePart(VpParts.CAKE, holder, bites));
             } else {
                 for (Extension extension : extensions) {
                     offer = extension.handle(block, player, world, hand, hit, pos);

src/main/java/juuxel/vanillaparts/part/CakePart.java

@@ -41,11 +41,6 @@ public CakePart(PartDefinition definition, MultipartHolder holder, int bites) {
         this.bites = bites;
     }
 
-    @Deprecated
-    public CakePart(PartDefinition definition, MultipartHolder holder) {
-        this(definition, holder, 0);
-    }
-
     public static CakePart fromNbt(PartDefinition definition, MultipartHolder holder, NbtCompound nbt) {
         return new CakePart(definition, holder, nbt.getInt(NbtKeys.BITES));
     }