PaperMC/patches/server/0890-Fix-missing-map-initialize-event-call.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

43 lines
2.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Warrior <50800980+Warriorrrr@users.noreply.github.com>
Date: Sun, 24 Sep 2023 18:35:28 +0200
Subject: [PATCH] Fix missing map initialize event call
== AT ==
public net.minecraft.world.level.storage.DimensionDataStorage readSavedData(Ljava/util/function/Function;Lnet/minecraft/util/datafix/DataFixTypes;Ljava/lang/String;)Lnet/minecraft/world/level/saveddata/SavedData;
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index fd4d1cab675b7b423ac0fdf9a8c9f472ddc68c36..60c75f7c4258efb26c2595ca7724b08d3c046c9d 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1662,13 +1662,24 @@ public class ServerLevel extends Level implements WorldGenLevel {
@Nullable
@Override
public MapItemSavedData getMapData(MapId id) {
- // CraftBukkit start
- MapItemSavedData worldmap = (MapItemSavedData) this.getServer().overworld().getDataStorage().get(MapItemSavedData.factory(), id.key());
- if (worldmap != null) {
- worldmap.id = id;
+ // Paper start - Call missing map initialize event and set id
+ final DimensionDataStorage storage = this.getServer().overworld().getDataStorage();
+
+ final net.minecraft.world.level.saveddata.SavedData existing = storage.cache.get(id.key());
+ if (existing == null && !storage.cache.containsKey(id.key())) {
+ final MapItemSavedData worldmap = (MapItemSavedData) this.getServer().overworld().getDataStorage().get(MapItemSavedData.factory(), id.key());
+ storage.cache.put(id.key(), worldmap);
+ if (worldmap != null) {
+ worldmap.id = id;
+ new MapInitializeEvent(worldmap.mapView).callEvent();
+ return worldmap;
+ }
+ } else if (existing instanceof MapItemSavedData mapItemSavedData) {
+ mapItemSavedData.id = id;
}
- return worldmap;
- // CraftBukkit end
+
+ return existing instanceof MapItemSavedData data ? data : null;
+ // Paper end - Call missing map initialize event and set id
}
@Override