Improve performance of RecipeMap#removeRecipe

patches/server/1059-Improve-performance-of-RecipeMap-removeRecipe.patch

@@ -0,0 +1,56 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Thu, 31 Oct 2024 20:36:41 -0700
+Subject: [PATCH] Improve performance of RecipeMap#removeRecipe
+
+
+diff --git a/src/main/java/net/minecraft/world/item/crafting/RecipeMap.java b/src/main/java/net/minecraft/world/item/crafting/RecipeMap.java
+index 5d842d7e774564143f9f3be6c2628d54595a235b..e01b01a6582a87503495c5017c7e6cbbcb12a902 100644
+--- a/src/main/java/net/minecraft/world/item/crafting/RecipeMap.java
++++ b/src/main/java/net/minecraft/world/item/crafting/RecipeMap.java
+@@ -54,19 +54,19 @@ public class RecipeMap {
+         }
+     }
+
+-    public boolean removeRecipe(ResourceKey<Recipe<?>> mcKey) {
+-        boolean removed = false;
+-        Iterator<RecipeHolder<?>> iter = this.byType.values().iterator();
+-        while (iter.hasNext()) {
+-            RecipeHolder<?> recipe = iter.next();
+-            if (recipe.id().equals(mcKey)) {
+-                iter.remove();
+-                removed = true;
+-            }
++    // Paper start - why are you using a loop???
++    public <T extends RecipeInput> boolean removeRecipe(ResourceKey<Recipe<T>> mcKey) {
++        //noinspection unchecked
++        final RecipeHolder<Recipe<T>> remove = (RecipeHolder<Recipe<T>>) this.byKey.remove(mcKey);
++        if (remove == null) {
++            return false;
+         }
+-        removed |= this.byKey.remove(mcKey) != null;
+-
+-        return removed;
++        final Collection<? extends RecipeHolder<? extends Recipe<T>>> recipes = this.byType(remove.value().getType());
++        if (recipes.remove(remove)) {
++            return true;
++        }
++        return false;
++        // Paper end - why are you using a loop???
+     }
+     // CraftBukkit end
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/RecipeIterator.java b/src/main/java/org/bukkit/craftbukkit/inventory/RecipeIterator.java
+index c0433e054e64c329dff670c8f7ca21c4a4133c6f..6c8c5d6d06d0f92fd7c8010ad5a339200307d003 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/RecipeIterator.java
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/RecipeIterator.java
+@@ -32,5 +32,9 @@ public class RecipeIterator implements Iterator<Recipe> {
+     public void remove() {
+         MinecraftServer.getServer().getRecipeManager().recipes.byKey.remove(this.currentRecipe.id()); // Paper - fix removing recipes from RecipeIterator
+         this.recipes.remove();
++        // Paper start - correctly reload recipes
++        MinecraftServer.getServer().getRecipeManager().finalizeRecipeLoading();
++        MinecraftServer.getServer().getPlayerList().reloadRecipeData();
++        // Paper end - correctly reload recipes
+     }
+ }