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geforkt von Mirrors/Paper
Paper/patches/server/0492-Expose-Tracked-Players.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

33 Zeilen
1.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tom <cryptite@gmail.com>
Date: Fri, 26 Feb 2021 16:24:25 -0600
Subject: [PATCH] Expose Tracked Players
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index 98e8ad81b8c9c0636abe59f70ce891fe926a37fe..96201ea45f8b53dcadb1a8732b1d49b1e8d1d7df 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -1069,4 +1069,21 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
return getHandle().isTicking();
}
// Paper end - isTicking API
+
+ // Paper start - tracked players API
+ @Override
+ public Set<org.bukkit.entity.Player> getTrackedPlayers() {
+ ServerLevel world = (net.minecraft.server.level.ServerLevel)this.entity.level();
+ ChunkMap.TrackedEntity tracker = world == null ? null : world.getChunkSource().chunkMap.entityMap.get(this.entity.getId());
+ if (tracker == null) {
+ return java.util.Collections.emptySet();
+ }
+
+ Set<org.bukkit.entity.Player> set = new java.util.HashSet<>(tracker.seenBy.size());
+ for (net.minecraft.server.network.ServerPlayerConnection connection : tracker.seenBy) {
+ set.add(connection.getPlayer().getBukkitEntity().getPlayer());
+ }
+ return set;
+ }
+ // Paper end - tracked players API
}