PaperMC/patches/server/0642-Expose-isFuel-and-canSmelt-methods-to-FurnaceInvento.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
Spigot still maintains some partial implementation of "tick skipping", a
practice in which the MinecraftServer.currentTick field is updated not
by an increment of one per actual tick, but instead set to
System.currentTimeMillis() / 50. This behaviour means that the tracked
tick may "skip" a tick value in case a previous tick took more than the
expected 50ms.

To compensate for this in important paths, spigot/craftbukkit
implements "wall-time". Instead of incrementing/decrementing ticks on
block entities/entities by one for each call to their tick() method,
they instead increment/decrement important values, like
an ItemEntity's age or pickupDelay, by the difference of
`currentTick - lastTick`, where `lastTick` is the value of
`currentTick` during the last tick() call.

These "fixes" however do not play nicely with minecraft's simulation
distance as entities/block entities implementing the above behaviour
would "catch up" their values when moving from a non-ticking chunk to a
ticking one as their `lastTick` value remains stuck on the last tick in
a ticking chunk and hence lead to a large "catch up" once ticked again.

Paper completely removes the "tick skipping" behaviour (See patch
"Further-improve-server-tick-loop"), making the above precautions
completely unnecessary, which also rids paper of the previous described
incompatibility with non-ticking chunks.
2024-09-19 16:36:07 +02:00

31 lines
1.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <blake.galbreath@gmail.com>
Date: Thu, 23 Dec 2021 15:32:50 -0600
Subject: [PATCH] Expose isFuel and canSmelt methods to FurnaceInventory
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryFurnace.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryFurnace.java
index 29a8cd7667860c4598a556e6ef3af39c731683db..bd370f5c856d75b7210ef26036aedaa859c570be 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryFurnace.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryFurnace.java
@@ -40,6 +40,20 @@ public class CraftInventoryFurnace extends CraftInventory implements FurnaceInve
this.setItem(0, stack);
}
+ // Paper start
+ @Override
+ public boolean isFuel(ItemStack stack) {
+ return stack != null && !stack.getType().isEmpty() && AbstractFurnaceBlockEntity.isFuel(CraftItemStack.asNMSCopy(stack));
+ }
+
+ @Override
+ public boolean canSmelt(ItemStack stack) {
+ // data packs are always loaded in the main world
+ net.minecraft.server.level.ServerLevel world = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorlds().get(0)).getHandle();
+ return stack != null && !stack.getType().isEmpty() && world.getRecipeManager().getRecipeFor(((AbstractFurnaceBlockEntity) this.inventory).recipeType, new net.minecraft.world.item.crafting.SingleRecipeInput(CraftItemStack.asNMSCopy(stack)), world).isPresent();
+ }
+ // Paper end
+
@Override
public Furnace getHolder() {
return (Furnace) this.inventory.getOwner();