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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-11-15 04:20:04 +01:00
Paper/patches/server/0699-Don-t-tick-markers.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

37 Zeilen
2.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Noah van der Aa <ndvdaa@gmail.com>
Date: Fri, 7 Jan 2022 11:58:26 +0100
Subject: [PATCH] Don't tick markers
Fixes https://github.com/PaperMC/Paper/issues/7276 and https://github.com/PaperMC/Paper/issues/8118
by using a config option that, when set to false, does not add markers to the entity
tick list at all and ignores them in Spigot's activation range checks. The entity tick
list is only used in the tick and tickPassenger methods, so we can safely not add the
markers to it. When the config option is set to true, markers are ticked as normal.
diff --git a/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java b/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java
index 67fcba634f8183bb33834ac3b2c3dcfb8d87129e..777b789fdcdf297309cfb36fc7f77e3fdb6327ca 100644
--- a/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java
+++ b/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java
@@ -109,7 +109,7 @@ public final class EntityCommand implements PaperSubcommand {
ChunkPos chunk = e.chunkPosition();
info.left++;
info.right.put(chunk, info.right.getOrDefault(chunk, 0) + 1);
- if (!chunkProviderServer.isPositionTicking(e)) {
+ if (!chunkProviderServer.isPositionTicking(e) || (e instanceof net.minecraft.world.entity.Marker && !world.paperConfig().entities.markers.tick)) { // Paper - Configurable marker ticking
nonEntityTicking.merge(key, 1, Integer::sum);
}
});
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 60a77bd04489ee592ec61d3d739cb3062c1eefbb..492e8a2ff5618c45bfffa3284f03be14ff162ce8 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -2160,6 +2160,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
}
public void onTickingStart(Entity entity) {
+ if (entity instanceof net.minecraft.world.entity.Marker && !paperConfig().entities.markers.tick) return; // Paper - Configurable marker ticking
ServerLevel.this.entityTickList.add(entity);
}