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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-11-15 04:20:04 +01:00
Paper/patches/server/0534-Move-range-check-for-block-placing-up.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

23 Zeilen
1.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Wed, 8 Jun 2022 10:52:18 +0200
Subject: [PATCH] Move range check for block placing up
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 9781047aa5e0a6e6bc9f9c43a1eb347b6ecdff66..39e74591d3aaa7fecb0ed6f4213a5f4c60360b0e 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1745,6 +1745,11 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
if (itemstack.isItemEnabled(worldserver.enabledFeatures())) {
BlockHitResult movingobjectpositionblock = packet.getHitResult();
Vec3 vec3d = movingobjectpositionblock.getLocation();
+ // Paper start - improve distance check
+ if (!Double.isFinite(vec3d.x) || !Double.isFinite(vec3d.y) || !Double.isFinite(vec3d.z)) {
+ return;
+ }
+ // Paper end - improve distance check
BlockPos blockposition = movingobjectpositionblock.getBlockPos();
if (this.player.canInteractWithBlock(blockposition, 1.0D)) {