From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 26 Sep 2021 12:57:28 -0700
Subject: [PATCH] Option to prevent NBT copy in smithing recipes


diff --git a/src/main/java/net/minecraft/world/item/crafting/SmithingTransformRecipe.java b/src/main/java/net/minecraft/world/item/crafting/SmithingTransformRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/item/crafting/SmithingTransformRecipe.java
+++ b/src/main/java/net/minecraft/world/item/crafting/SmithingTransformRecipe.java
@@ -0,0 +0,0 @@ public class SmithingTransformRecipe implements SmithingRecipe {
     final Ingredient base;
     final Ingredient addition;
     final ItemStack result;
+    final boolean copyNBT; // Paper
 
     public SmithingTransformRecipe(ResourceLocation id, Ingredient template, Ingredient base, Ingredient addition, ItemStack result) {
+        // Paper start
+        this(id, template, base, addition, result, true);
+    }
+    public SmithingTransformRecipe(ResourceLocation id, Ingredient template, Ingredient base, Ingredient addition, ItemStack result, boolean copyNBT) {
+        this.copyNBT = copyNBT;
+        // Paper end
         this.id = id;
         this.template = template;
         this.base = base;
@@ -0,0 +0,0 @@ public class SmithingTransformRecipe implements SmithingRecipe {
     @Override
     public ItemStack assemble(Container inventory, RegistryAccess registryManager) {
         ItemStack itemstack = this.result.copy();
+        if (this.copyNBT) { // Paper - copy nbt conditionally
         CompoundTag nbttagcompound = inventory.getItem(1).getTag();
 
         if (nbttagcompound != null) {
             itemstack.setTag(nbttagcompound.copy());
         }
+        } // Paper
 
         return itemstack;
     }
@@ -0,0 +0,0 @@ public class SmithingTransformRecipe implements SmithingRecipe {
     public Recipe toBukkitRecipe() {
         CraftItemStack result = CraftItemStack.asCraftMirror(this.result);
 
-        CraftSmithingTransformRecipe recipe = new CraftSmithingTransformRecipe(CraftNamespacedKey.fromMinecraft(this.id), result, CraftRecipe.toBukkit(this.template), CraftRecipe.toBukkit(this.base), CraftRecipe.toBukkit(this.addition));
+        CraftSmithingTransformRecipe recipe = new CraftSmithingTransformRecipe(CraftNamespacedKey.fromMinecraft(this.id), result, CraftRecipe.toBukkit(this.template), CraftRecipe.toBukkit(this.base), CraftRecipe.toBukkit(this.addition), this.copyNBT); // Paper
 
         return recipe;
     }
diff --git a/src/main/java/net/minecraft/world/item/crafting/SmithingTrimRecipe.java b/src/main/java/net/minecraft/world/item/crafting/SmithingTrimRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/item/crafting/SmithingTrimRecipe.java
+++ b/src/main/java/net/minecraft/world/item/crafting/SmithingTrimRecipe.java
@@ -0,0 +0,0 @@ public class SmithingTrimRecipe implements SmithingRecipe {
     final Ingredient template;
     final Ingredient base;
     final Ingredient addition;
+    final boolean copyNbt; // Paper
 
     public SmithingTrimRecipe(ResourceLocation id, Ingredient template, Ingredient base, Ingredient addition) {
+        // Paper start
+        this(id, template, base, addition, true);
+    }
+    public SmithingTrimRecipe(ResourceLocation id, Ingredient template, Ingredient base, Ingredient addition, boolean copyNbt) {
+        this.copyNbt = copyNbt;
+        // Paper end
         this.id = id;
         this.template = template;
         this.base = base;
@@ -0,0 +0,0 @@ public class SmithingTrimRecipe implements SmithingRecipe {
                     return ItemStack.EMPTY;
                 }
 
-                ItemStack itemstack1 = itemstack.copy();
+                ItemStack itemstack1 = this.copyNbt ? itemstack.copy() : new ItemStack(itemstack.getItem(), itemstack.getCount()); // Paper
 
                 itemstack1.setCount(1);
                 ArmorTrim armortrim = new ArmorTrim((Holder) optional.get(), (Holder) optional1.get());
@@ -0,0 +0,0 @@ public class SmithingTrimRecipe implements SmithingRecipe {
     // CraftBukkit start
     @Override
     public Recipe toBukkitRecipe() {
-        return new CraftSmithingTrimRecipe(CraftNamespacedKey.fromMinecraft(this.id), CraftRecipe.toBukkit(this.template), CraftRecipe.toBukkit(this.base), CraftRecipe.toBukkit(this.addition));
+        return new CraftSmithingTrimRecipe(CraftNamespacedKey.fromMinecraft(this.id), CraftRecipe.toBukkit(this.template), CraftRecipe.toBukkit(this.base), CraftRecipe.toBukkit(this.addition), this.copyNbt); // Paper
     }
     // CraftBukkit end
 
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftSmithingTransformRecipe.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftSmithingTransformRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftSmithingTransformRecipe.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftSmithingTransformRecipe.java
@@ -0,0 +0,0 @@ public class CraftSmithingTransformRecipe extends SmithingTransformRecipe implem
     public CraftSmithingTransformRecipe(NamespacedKey key, ItemStack result, RecipeChoice template, RecipeChoice base, RecipeChoice addition) {
         super(key, result, template, base, addition);
     }
+    // Paper start
+    public CraftSmithingTransformRecipe(NamespacedKey key, ItemStack result, RecipeChoice template, RecipeChoice base, RecipeChoice addition, boolean copyNbt) {
+        super(key, result, template, base, addition, copyNbt);
+    }
+    // Paper end
 
     public static CraftSmithingTransformRecipe fromBukkitRecipe(SmithingTransformRecipe recipe) {
         if (recipe instanceof CraftSmithingTransformRecipe) {
             return (CraftSmithingTransformRecipe) recipe;
         }
-        CraftSmithingTransformRecipe ret = new CraftSmithingTransformRecipe(recipe.getKey(), recipe.getResult(), recipe.getTemplate(), recipe.getBase(), recipe.getAddition());
+        CraftSmithingTransformRecipe ret = new CraftSmithingTransformRecipe(recipe.getKey(), recipe.getResult(), recipe.getTemplate(), recipe.getBase(), recipe.getAddition(), recipe.willCopyNbt()); // Paper
         return ret;
     }
 
@@ -0,0 +0,0 @@ public class CraftSmithingTransformRecipe extends SmithingTransformRecipe implem
     public void addToCraftingManager() {
         ItemStack result = this.getResult();
 
-        MinecraftServer.getServer().getRecipeManager().addRecipe(new net.minecraft.world.item.crafting.SmithingTransformRecipe(CraftNamespacedKey.toMinecraft(this.getKey()), toNMS(this.getTemplate(), true), toNMS(this.getBase(), true), toNMS(this.getAddition(), true), CraftItemStack.asNMSCopy(result)));
+        MinecraftServer.getServer().getRecipeManager().addRecipe(new net.minecraft.world.item.crafting.SmithingTransformRecipe(CraftNamespacedKey.toMinecraft(this.getKey()), toNMS(this.getTemplate(), true), toNMS(this.getBase(), true), toNMS(this.getAddition(), true), CraftItemStack.asNMSCopy(result), this.willCopyNbt())); // Paper
     }
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftSmithingTrimRecipe.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftSmithingTrimRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftSmithingTrimRecipe.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftSmithingTrimRecipe.java
@@ -0,0 +0,0 @@ public class CraftSmithingTrimRecipe extends SmithingTrimRecipe implements Craft
     public CraftSmithingTrimRecipe(NamespacedKey key, RecipeChoice template, RecipeChoice base, RecipeChoice addition) {
         super(key, template, base, addition);
     }
+    // Paper start
+    public CraftSmithingTrimRecipe(NamespacedKey key, RecipeChoice template, RecipeChoice base, RecipeChoice addition, boolean copyNbt) {
+        super(key, template, base, addition, copyNbt);
+    }
+    // Paper end
 
     public static CraftSmithingTrimRecipe fromBukkitRecipe(SmithingTrimRecipe recipe) {
         if (recipe instanceof CraftSmithingTrimRecipe) {
             return (CraftSmithingTrimRecipe) recipe;
         }
-        CraftSmithingTrimRecipe ret = new CraftSmithingTrimRecipe(recipe.getKey(), recipe.getTemplate(), recipe.getBase(), recipe.getAddition());
+        CraftSmithingTrimRecipe ret = new CraftSmithingTrimRecipe(recipe.getKey(), recipe.getTemplate(), recipe.getBase(), recipe.getAddition(), recipe.willCopyNbt()); // Paper
         return ret;
     }
 
     @Override
     public void addToCraftingManager() {
-        MinecraftServer.getServer().getRecipeManager().addRecipe(new net.minecraft.world.item.crafting.SmithingTrimRecipe(CraftNamespacedKey.toMinecraft(this.getKey()), toNMS(this.getTemplate(), true), toNMS(this.getBase(), true), toNMS(this.getAddition(), true)));
+        MinecraftServer.getServer().getRecipeManager().addRecipe(new net.minecraft.world.item.crafting.SmithingTrimRecipe(CraftNamespacedKey.toMinecraft(this.getKey()), toNMS(this.getTemplate(), true), toNMS(this.getBase(), true), toNMS(this.getAddition(), true), this.willCopyNbt())); // Paper
     }
 }