From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jake Potrebic Date: Sun, 13 Aug 2023 15:41:52 -0700 Subject: [PATCH] Improve performance of mass crafts When the server crafts all available items in CraftingMenu or InventoryMenu the game checks either 4 or 9 times for each individual craft for a matching recipe for that container. This check can be expensive if 64 total crafts are being performed with the recipe matching logic being run 64 * 9 + 64 times. A breakdown of those times is below. This patch caches the last matching recipe so that it is checked first and only if it doesn't match does the rest of the matching logic run. Shift-click crafts are processed one at a time, so shift clicking on an item in the result of a iron block craft where all the 9 inputs are full stacks of iron will run 64 iron block crafts. For each of those crafts, the 'remaining' blocks are calculated. This is due to recipes that have leftover items like buckets. This is done for each craft, and done once to get the full 9 leftover items which are usually air. Then 1 item is removed from each of the 9 inputs and each time that happens, logic is triggered to update the result itemstack. So for each craft, that logic is run 9 times (hence the 64 * 9). The + 64 is from the 64 checks for remaining items. After this patch, the full iteration over all recipes checking for a match should run once for a full craft to find the initial recipe match. Then that recipe will be checked first for all future recipe match checks. diff --git a/src/main/java/net/minecraft/world/inventory/CraftingMenu.java b/src/main/java/net/minecraft/world/inventory/CraftingMenu.java index a7aa2a4845cbf5a0843dcb93f7bdc5501f62a145..4c8ce073094e55ea0df67fe02c0d1cc8aef76562 100644 --- a/src/main/java/net/minecraft/world/inventory/CraftingMenu.java +++ b/src/main/java/net/minecraft/world/inventory/CraftingMenu.java @@ -76,7 +76,8 @@ public class CraftingMenu extends RecipeBookMenu { if (!world.isClientSide) { ServerPlayer entityplayer = (ServerPlayer) player; ItemStack itemstack = ItemStack.EMPTY; - Optional> optional = world.getServer().getRecipeManager().getRecipeFor(RecipeType.CRAFTING, craftingInventory, world); + final RecipeHolder currentRecipe = craftingInventory.getCurrentRecipe(); // Paper - check last recipe used first + Optional> optional = currentRecipe == null ? world.getServer().getRecipeManager().getRecipeFor(RecipeType.CRAFTING, craftingInventory, world) : world.getServer().getRecipeManager().getRecipeFor(RecipeType.CRAFTING, craftingInventory, world, currentRecipe.id()).map(com.mojang.datafixers.util.Pair::getSecond); // Paper - check last recipe used first if (optional.isPresent()) { RecipeHolder recipeholder = (RecipeHolder) optional.get(); diff --git a/src/main/java/net/minecraft/world/inventory/ResultSlot.java b/src/main/java/net/minecraft/world/inventory/ResultSlot.java index 525ba0bdc4c6782480930bea94f73a72efe6fc4c..2554f7b1d687f83f42d69bf8ab54336ba793e301 100644 --- a/src/main/java/net/minecraft/world/inventory/ResultSlot.java +++ b/src/main/java/net/minecraft/world/inventory/ResultSlot.java @@ -59,7 +59,7 @@ public class ResultSlot extends Slot { @Override public void onTake(Player player, ItemStack stack) { this.checkTakeAchievements(stack); - NonNullList nonNullList = player.level().getRecipeManager().getRemainingItemsFor(RecipeType.CRAFTING, this.craftSlots, player.level()); + NonNullList nonNullList = player.level().getRecipeManager().getRemainingItemsFor(RecipeType.CRAFTING, this.craftSlots, player.level(), this.craftSlots.getCurrentRecipe() != null ? this.craftSlots.getCurrentRecipe().id() : null); // Paper - check last recipe used first for(int i = 0; i < nonNullList.size(); ++i) { ItemStack itemStack = this.craftSlots.getItem(i); diff --git a/src/main/java/net/minecraft/world/item/crafting/RecipeManager.java b/src/main/java/net/minecraft/world/item/crafting/RecipeManager.java index 43aacadcf8be10432a61c83f69ee86580c86d0a3..388363948595247471fa4c3c6801fc493d61c0d0 100644 --- a/src/main/java/net/minecraft/world/item/crafting/RecipeManager.java +++ b/src/main/java/net/minecraft/world/item/crafting/RecipeManager.java @@ -122,13 +122,16 @@ public class RecipeManager extends SimpleJsonResourceReloadListener { RecipeHolder recipeholder = (RecipeHolder) map.get(id); if (recipeholder != null && recipeholder.value().matches(inventory, world)) { + inventory.setCurrentRecipe(recipeholder); // Paper return Optional.of(Pair.of(id, recipeholder)); } } + inventory.setCurrentRecipe(null); // Paper - clear before it might be set again return map.entrySet().stream().filter((entry) -> { return ((RecipeHolder) entry.getValue()).value().matches(inventory, world); }).findFirst().map((entry) -> { + inventory.setCurrentRecipe(entry.getValue()); // Paper return Pair.of((ResourceLocation) entry.getKey(), (RecipeHolder) entry.getValue()); }); } @@ -150,7 +153,12 @@ public class RecipeManager extends SimpleJsonResourceReloadListener { } public > NonNullList getRemainingItemsFor(RecipeType type, C inventory, Level world) { - Optional> optional = this.getRecipeFor(type, inventory, world); + // Paper start - check last recipe used first + return this.getRemainingItemsFor(type, inventory, world, null); + } + public > NonNullList getRemainingItemsFor(RecipeType type, C inventory, Level world, @Nullable ResourceLocation firstToCheck) { + Optional> optional = firstToCheck == null ? this.getRecipeFor(type, inventory, world) : this.getRecipeFor(type, inventory, world, firstToCheck).map(Pair::getSecond); + // Paper end if (optional.isPresent()) { return ((RecipeHolder) optional.get()).value().getRemainingItems(inventory);