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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-12-15 19:10:09 +01:00
Paper/patches/server/0421-Fix-item-locations-dropped-from-campfires.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

29 Zeilen
2.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 3 Oct 2020 20:32:25 -0500
Subject: [PATCH] Fix item locations dropped from campfires
Fixes #4259 by not flooring the blockposition among other weirdness
Vanilla Issue: MC-267622
diff --git a/src/main/java/net/minecraft/world/level/block/entity/CampfireBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/CampfireBlockEntity.java
index 391acc9dadc653e9e1285a71b4f1e7c063e8ca49..80f911692c97585a696a19ebbe616d6aa312b2d9 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/CampfireBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/CampfireBlockEntity.java
@@ -86,7 +86,14 @@ public class CampfireBlockEntity extends BlockEntity implements Clearable {
result = blockCookEvent.getResult();
itemstack1 = CraftItemStack.asNMSCopy(result);
// CraftBukkit end
- Containers.dropItemStack(world, (double) pos.getX(), (double) pos.getY(), (double) pos.getZ(), itemstack1);
+ // Paper start - Fix item locations dropped from campfires
+ double deviation = 0.05F * RandomSource.GAUSSIAN_SPREAD_FACTOR;
+ while (!itemstack1.isEmpty()) {
+ net.minecraft.world.entity.item.ItemEntity droppedItem = new net.minecraft.world.entity.item.ItemEntity(world, pos.getX() + 0.5D, pos.getY() + 0.5D, pos.getZ() + 0.5D, itemstack1.split(world.random.nextInt(21) + 10));
+ droppedItem.setDeltaMovement(world.random.triangle(0.0D, deviation), world.random.triangle(0.2D, deviation), world.random.triangle(0.0D, deviation));
+ world.addFreshEntity(droppedItem);
+ }
+ // Paper end - Fix item locations dropped from campfires
campfire.items.set(i, ItemStack.EMPTY);
world.sendBlockUpdated(pos, state, state, 3);
world.gameEvent((Holder) GameEvent.BLOCK_CHANGE, pos, GameEvent.Context.of(state));