Paper/patches/server/0647-Add-config-option-for-worlds-affected-by-time-cmd.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 lines
2.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 2 Jan 2022 22:34:51 -0800
Subject: [PATCH] Add config option for worlds affected by time cmd
diff --git a/src/main/java/net/minecraft/server/commands/TimeCommand.java b/src/main/java/net/minecraft/server/commands/TimeCommand.java
index db9317f813244c3cd895bdf9c4eb2218f68c4f1d..44fcd43a466fb47d31ab05e44bafbef3c4cae63f 100644
--- a/src/main/java/net/minecraft/server/commands/TimeCommand.java
+++ b/src/main/java/net/minecraft/server/commands/TimeCommand.java
@@ -53,7 +53,7 @@ public class TimeCommand {
}
public static int setTime(CommandSourceStack source, int time) {
- Iterator iterator = com.google.common.collect.Iterators.singletonIterator(source.getLevel()); // CraftBukkit - SPIGOT-6496: Only set the time for the world the command originates in
+ Iterator iterator = io.papermc.paper.configuration.GlobalConfiguration.get().commands.timeCommandAffectsAllWorlds ? source.getServer().getAllLevels().iterator() : com.google.common.collect.Iterators.singletonIterator(source.getLevel()); // CraftBukkit - SPIGOT-6496: Only set the time for the world the command originates in // Paper - add config option for spigot's change
while (iterator.hasNext()) {
ServerLevel worldserver = (ServerLevel) iterator.next();
@@ -74,7 +74,7 @@ public class TimeCommand {
}
public static int addTime(CommandSourceStack source, int time) {
- Iterator iterator = com.google.common.collect.Iterators.singletonIterator(source.getLevel()); // CraftBukkit - SPIGOT-6496: Only set the time for the world the command originates in
+ Iterator iterator = io.papermc.paper.configuration.GlobalConfiguration.get().commands.timeCommandAffectsAllWorlds ? source.getServer().getAllLevels().iterator() : com.google.common.collect.Iterators.singletonIterator(source.getLevel()); // CraftBukkit - SPIGOT-6496: Only set the time for the world the command originates in // Paper - add config option for spigot's change
while (iterator.hasNext()) {
ServerLevel worldserver = (ServerLevel) iterator.next();