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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-12-15 11:00:06 +01:00
Paper/patches/server/0433-Fix-Player-spawnParticle-x-y-z-precision-loss.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
1.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Esophose <esophose@gmail.com>
Date: Sat, 3 Oct 2020 18:57:47 -0600
Subject: [PATCH] Fix Player spawnParticle x/y/z precision loss
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 854533854dfba24b59a15265ac759331e3ddfc74..73fde8be0098238582fb3661ae67d4139be417dc 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -2707,7 +2707,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
@Override
public <T> void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, T data, boolean force) {
- ClientboundLevelParticlesPacket packetplayoutworldparticles = new ClientboundLevelParticlesPacket(CraftParticle.createParticleParam(particle, data), force, (float) x, (float) y, (float) z, (float) offsetX, (float) offsetY, (float) offsetZ, (float) extra, count);
+ ClientboundLevelParticlesPacket packetplayoutworldparticles = new ClientboundLevelParticlesPacket(CraftParticle.createParticleParam(particle, data), force, x, y, z, (float) offsetX, (float) offsetY, (float) offsetZ, (float) extra, count); // Paper - fix x/y/z precision loss
this.getHandle().connection.send(packetplayoutworldparticles);
}