Heavily optimize furnance fuel and recipe lookups

patches/server/0016-Heavily-optimize-furnance-fuel-and-recipe-lookups.patch

@@ -0,0 +1,44 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: tr7zw <tr7zw@live.de>
+Date: Thu, 25 Jun 2020 23:40:12 +0200
+Subject: [PATCH] Heavily optimize furnance fuel and recipe lookups
+
+From Yatopia
+Co-authored-by: Mykyta Komarn <nkomarn@hotmail.com>
+Updated to 1.17 by: Toffikk <slodkitofik@gmail.com>
+
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
+index c559ec5041474e585e4d95a664c84e1fa895cf16..0dc25a12bc487895bb9a8d08acedb247d318c912 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
+@@ -322,7 +322,11 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
+                 blockEntity.cookingProgress = Mth.clamp(blockEntity.cookingProgress - 2, 0, blockEntity.cookingTotalTime);
+             }
+         } else {
+-            Recipe<?> irecipe = (Recipe) world.getRecipeManager().getRecipeFor((RecipeType<AbstractCookingRecipe>) blockEntity.recipeType, blockEntity, world).orElse(null); // CraftBukkit - decompile error // Eclipse fail
++            // Recipe<?> irecipe = (Recipe) world.getRecipeManager().getRecipeFor((RecipeType<AbstractCookingRecipe>) blockEntity.recipeType, blockEntity, world).orElse(null); // CraftBukkit - decompile error // Eclipse fail // Sugarcane - use cached recipe if possible, otherwise look up
++            // Sugarcane start - use cached recipe if possible, otherwise look up
++            Recipe<?> irecipe = blockEntity.getCurrentRecipe();
++            if (irecipe == null) irecipe = (Recipe) world.getRecipeManager().getRecipeFor((RecipeType<AbstractCookingRecipe>) blockEntity.recipeType, blockEntity, world).orElse(null); // CraftBukkit - decompile error // Eclipse fail // Sugarcane - use cached recipe if possible, otherwise look up
++            // Sugarcane end
+             int i = blockEntity.getMaxStackSize();
+
+             if (!blockEntity.isLit() && AbstractFurnaceBlockEntity.canBurn(irecipe, blockEntity.items, i)) {
+@@ -644,4 +648,17 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
+         }
+
+     }
++    // Sugarcane start - cache recipe
++    private Recipe cachedRecipe = null;
++
++    @Override
++    public Recipe getCurrentRecipe() {
++        return cachedRecipe;
++    }
++
++    @Override
++    public void setCurrentRecipe(Recipe recipe) {
++        cachedRecipe = recipe;
++    }
++    // Sugarcane end
+ }