From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: nostalgic853 <yuu8583@proton.me>
Date: Tue, 25 Oct 2022 00:57:45 +0800
Subject: [PATCH] Carpet-Fixes: Use optimized RecipeManager

This patch is based on the following mixin:
"carpetfixes/mixins/optimizations/RecipeManager_fasterMixin.java"
By: fxmorin <28154542+fxmorin@users.noreply.github.com>

Original license: MIT
Original project: https://github.com/fxmorin/carpet-fixes

Optimized the RecipeManager getFirstMatch call to be up to 3x faster
This is a fully vanilla optimization. Improves: [Blast]Furnace/Campfire/Smoker/Stonecutter/Crafting/Sheep Color Choosing
This was mostly made for the auto crafting table, since the performance boost is much more visible while using that mod

diff --git a/net/minecraft/world/item/crafting/RecipeManager.java b/net/minecraft/world/item/crafting/RecipeManager.java
index b857e811b4b7a25eaec6dceaae5528d2ec0a1c45..ff801e80c534b7ca772cc631c65775a92f3e4843 100644
--- a/net/minecraft/world/item/crafting/RecipeManager.java
+++ b/net/minecraft/world/item/crafting/RecipeManager.java
@@ -167,7 +167,7 @@ public class RecipeManager extends SimplePreparableReloadListener<RecipeMap> imp
 
     public <I extends RecipeInput, T extends Recipe<I>> Optional<RecipeHolder<T>> getRecipeFor(RecipeType<T> recipeType, I input, Level level) {
         // CraftBukkit start
-        List<RecipeHolder<T>> list = this.recipes.getRecipesFor(recipeType, input, level).toList();
+        List<RecipeHolder<T>> list = this.recipes.getRecipesForList(recipeType, input, level); // Leaf - Carpet-Fixes - Use optimized RecipeManager - Remove streams to be faster
         return (list.isEmpty()) ? Optional.empty() : Optional.of(list.getLast()); // CraftBukkit - SPIGOT-4638: last recipe gets priority
         // CraftBukkit end
     }
diff --git a/net/minecraft/world/item/crafting/RecipeMap.java b/net/minecraft/world/item/crafting/RecipeMap.java
index 098753ddd215b6ef5915fac71d8c4f0b19cf4142..68c2b7e532f0cfa373b7c698da7778c58fe98364 100644
--- a/net/minecraft/world/item/crafting/RecipeMap.java
+++ b/net/minecraft/world/item/crafting/RecipeMap.java
@@ -73,6 +73,26 @@ public class RecipeMap {
     }
 
     public <I extends RecipeInput, T extends Recipe<I>> Stream<RecipeHolder<T>> getRecipesFor(RecipeType<T> type, I input, Level level) {
-        return input.isEmpty() ? Stream.empty() : this.byType(type).stream().filter(recipeHolder -> recipeHolder.value().matches(input, level));
+        return input.isEmpty() ? Stream.empty() : this.byType(type).stream().filter(recipeHolder -> recipeHolder.value().matches(input, level)); // Leaf - Carpet-Fixes - Use optimized RecipeManager - diff on change
     }
+
+    // Leaf start - Carpet-Fixes - Use optimized RecipeManager - Remove streams to be faster
+    public <I extends RecipeInput, T extends Recipe<I>> java.util.List<RecipeHolder<T>> getRecipesForList(RecipeType<T> type, I input, Level level) {
+        java.util.List<RecipeHolder<T>> list;
+
+        if (input.isEmpty()) {
+            return java.util.List.of();
+        } else {
+            list = new java.util.ArrayList<>();
+        }
+
+        for (RecipeHolder<T> recipeHolder : this.byType(type)) {
+            if (recipeHolder.value().matches(input, level)) {
+                list.add(recipeHolder);
+            }
+        }
+
+        return list;
+    }
+    // Leaf end - Carpet-Fixes - Use optimized RecipeManager - Remove streams to be faster
 }