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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-11-15 04:20:04 +01:00
Paper/patches/server/0805-Fix-crash-relating-to-bad-recipes-in-furnace-like-ti.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

20 Zeilen
1.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 19 Mar 2023 20:36:22 -0700
Subject: [PATCH] Fix crash relating to bad recipes in furnace-like tile
entities
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 f1a7054a0ee1842e78338d8984f151b24c352849..65ab9b22f724877b68f4f25aad2831e2cb080b19 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
@@ -616,6 +616,7 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
Entry<ResourceLocation> entry = (Entry) objectiterator.next();
worldserver.getRecipeManager().byKey((ResourceLocation) entry.getKey()).ifPresent((recipeholder) -> {
+ if (!(recipeholder.value() instanceof AbstractCookingRecipe)) return; // Paper - don't process non-cooking recipes
list.add(recipeholder);
AbstractFurnaceBlockEntity.createExperience(worldserver, vec3d, entry.getIntValue(), ((AbstractCookingRecipe) recipeholder.value()).getExperience(), blockposition, entityplayer, itemstack, amount); // CraftBukkit
});