Oxidizing and Waxing API

Author: IThundxr

Diff for: patches/net/minecraft/world/item/HoneycombItem.java.patch

@@ -0,0 +1,28 @@
+--- a/net/minecraft/world/item/HoneycombItem.java
++++ b/net/minecraft/world/item/HoneycombItem.java
+@@ -2,6 +_,7 @@
+ 
+ import com.google.common.base.Suppliers;
+ import com.google.common.collect.BiMap;
++import com.google.common.collect.HashBiMap;
+ import com.google.common.collect.ImmutableBiMap;
+ import java.util.Optional;
+ import java.util.function.Supplier;
+@@ -21,7 +_,7 @@
+ 
+ public class HoneycombItem extends Item implements SignApplicator {
+     public static final Supplier<BiMap<Block, Block>> WAXABLES = Suppliers.memoize(
+-        () -> ImmutableBiMap.<Block, Block>builder()
++        () -> HashBiMap.create(ImmutableBiMap.<Block, Block>builder()
+                 .put(Blocks.COPPER_BLOCK, Blocks.WAXED_COPPER_BLOCK)
+                 .put(Blocks.EXPOSED_COPPER, Blocks.WAXED_EXPOSED_COPPER)
+                 .put(Blocks.WEATHERED_COPPER, Blocks.WAXED_WEATHERED_COPPER)
+@@ -58,7 +_,7 @@
+                 .put(Blocks.EXPOSED_COPPER_BULB, Blocks.WAXED_EXPOSED_COPPER_BULB)
+                 .put(Blocks.WEATHERED_COPPER_BULB, Blocks.WAXED_WEATHERED_COPPER_BULB)
+                 .put(Blocks.OXIDIZED_COPPER_BULB, Blocks.WAXED_OXIDIZED_COPPER_BULB)
+-                .build()
++                .build())
+     );
+     public static final Supplier<BiMap<Block, Block>> WAX_OFF_BY_BLOCK = Suppliers.memoize(() -> WAXABLES.get().inverse());
+ 

Diff for: patches/net/minecraft/world/level/block/WeatheringCopper.java.patch

@@ -0,0 +1,28 @@
+--- a/net/minecraft/world/level/block/WeatheringCopper.java
++++ b/net/minecraft/world/level/block/WeatheringCopper.java
+@@ -2,6 +_,7 @@
+ 
+ import com.google.common.base.Suppliers;
+ import com.google.common.collect.BiMap;
++import com.google.common.collect.HashBiMap;
+ import com.google.common.collect.ImmutableBiMap;
+ import com.mojang.serialization.Codec;
+ import java.util.Optional;
+@@ -11,7 +_,7 @@
+ 
+ public interface WeatheringCopper extends ChangeOverTimeBlock<WeatheringCopper.WeatherState> {
+     Supplier<BiMap<Block, Block>> NEXT_BY_BLOCK = Suppliers.memoize(
+-        () -> ImmutableBiMap.<Block, Block>builder()
++        () -> HashBiMap.create(ImmutableBiMap.<Block, Block>builder()
+                 .put(Blocks.COPPER_BLOCK, Blocks.EXPOSED_COPPER)
+                 .put(Blocks.EXPOSED_COPPER, Blocks.WEATHERED_COPPER)
+                 .put(Blocks.WEATHERED_COPPER, Blocks.OXIDIZED_COPPER)
+@@ -39,7 +_,7 @@
+                 .put(Blocks.COPPER_BULB, Blocks.EXPOSED_COPPER_BULB)
+                 .put(Blocks.EXPOSED_COPPER_BULB, Blocks.WEATHERED_COPPER_BULB)
+                 .put(Blocks.WEATHERED_COPPER_BULB, Blocks.OXIDIZED_COPPER_BULB)
+-                .build()
++                .build())
+     );
+     Supplier<BiMap<Block, Block>> PREVIOUS_BY_BLOCK = Suppliers.memoize(() -> NEXT_BY_BLOCK.get().inverse());
+ 

Diff for: src/main/java/net/neoforged/neoforge/common/CommonHooks.java

@@ -98,16 +98,7 @@
 import net.minecraft.world.inventory.ClickAction;
 import net.minecraft.world.inventory.ContainerLevelAccess;
 import net.minecraft.world.inventory.Slot;
-import net.minecraft.world.item.AdventureModePredicate;
-import net.minecraft.world.item.BucketItem;
-import net.minecraft.world.item.CreativeModeTab;
-import net.minecraft.world.item.EnchantedBookItem;
-import net.minecraft.world.item.Item;
-import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.PotionItem;
-import net.minecraft.world.item.SpawnEggItem;
-import net.minecraft.world.item.Tiers;
-import net.minecraft.world.item.TippedArrowItem;
+import net.minecraft.world.item.*;
 import net.minecraft.world.item.alchemy.Potion;
 import net.minecraft.world.item.alchemy.PotionContents;
 import net.minecraft.world.item.context.UseOnContext;
@@ -124,6 +115,7 @@
 import net.minecraft.world.level.biome.MobSpawnSettings;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.WeatheringCopper;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.state.BlockState;
 import net.minecraft.world.level.block.state.pattern.BlockInWorld;
@@ -1360,4 +1352,30 @@ public static void onChunkUnload(PoiManager poiManager, ChunkAccess chunkAccess)
             poiManager.remove(sectionPosKey);
         }
     }
+
+    /**
+     * Registers a before and after blocks that can oxidize and de-oxidize
+     *
+     * @param before block with less oxidization
+     * @param after block with more oxidization
+     */
+    public static void registerOxidizableBlock(Block before, Block after) {
+        Objects.requireNonNull(before, "Oxidizable Block before must not be null");
+        Objects.requireNonNull(after, "Oxidizable Block after must not be null");
+
+        WeatheringCopper.NEXT_BY_BLOCK.get().put(before, after);
+    }
+
+    /**
+     * Registers a before and after blocks that can be waxed and unwaxed
+     *
+     * @param before the unwaxed block
+     * @param after the waxed block
+     */
+    public static void registerWaxableBlock(Block before, Block after) {
+        Objects.requireNonNull(before, "Waxable before before must not be null");
+        Objects.requireNonNull(after, "Waxable Block after must not be null");
+
+        HoneycombItem.WAXABLES.get().put(before, after);
+    }
 }