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geforkt von Mirrors/Paper
Paper/patches/server/0740-Call-BlockPhysicsEvent-more-often.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

33 Zeilen
2.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Lulu13022002 <41980282+Lulu13022002@users.noreply.github.com>
Date: Sun, 7 Aug 2022 22:16:36 +0200
Subject: [PATCH] Call BlockPhysicsEvent more often
diff --git a/src/main/java/net/minecraft/world/level/redstone/CollectingNeighborUpdater.java b/src/main/java/net/minecraft/world/level/redstone/CollectingNeighborUpdater.java
index 457a963ee6ebd3cf5c3831f6660e3850335af49f..106af2b2c7ff72c7549975aef75cdcff8d9a7d97 100644
--- a/src/main/java/net/minecraft/world/level/redstone/CollectingNeighborUpdater.java
+++ b/src/main/java/net/minecraft/world/level/redstone/CollectingNeighborUpdater.java
@@ -119,7 +119,20 @@ public class CollectingNeighborUpdater implements NeighborUpdater {
public boolean runNext(Level world) {
BlockPos blockPos = this.sourcePos.relative(NeighborUpdater.UPDATE_ORDER[this.idx++]);
BlockState blockState = world.getBlockState(blockPos);
- NeighborUpdater.executeUpdate(world, blockState, blockPos, this.sourceBlock, this.sourcePos, false);
+ // Paper start - Call BlockPhysicsEvent
+ try {
+ org.bukkit.event.block.BlockPhysicsEvent event = new org.bukkit.event.block.BlockPhysicsEvent(
+ org.bukkit.craftbukkit.block.CraftBlock.at(world, blockPos),
+ org.bukkit.craftbukkit.block.data.CraftBlockData.fromData(blockState),
+ org.bukkit.craftbukkit.block.CraftBlock.at(world, this.sourcePos));
+
+ if (event.callEvent()) { // continue to check for adjacent block (increase idx)
+ NeighborUpdater.executeUpdate(world, blockState, blockPos, this.sourceBlock, this.sourcePos, false);
+ }
+ } catch (StackOverflowError ex) {
+ world.lastPhysicsProblem = blockPos;
+ }
+ // Paper end - Call BlockPhysicsEvent
if (this.idx < NeighborUpdater.UPDATE_ORDER.length && NeighborUpdater.UPDATE_ORDER[this.idx] == this.skipDirection) {
this.idx++;
}