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c5a10665b8
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.
33 lines
1.5 KiB
Diff
33 lines
1.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Tom <cryptite@gmail.com>
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Date: Fri, 26 Feb 2021 16:24:25 -0600
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Subject: [PATCH] Expose Tracked Players
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
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index 98e8ad81b8c9c0636abe59f70ce891fe926a37fe..96201ea45f8b53dcadb1a8732b1d49b1e8d1d7df 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
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@@ -1069,4 +1069,21 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
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return getHandle().isTicking();
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}
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// Paper end - isTicking API
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+
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+ // Paper start - tracked players API
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+ @Override
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+ public Set<org.bukkit.entity.Player> getTrackedPlayers() {
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+ ServerLevel world = (net.minecraft.server.level.ServerLevel)this.entity.level();
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+ ChunkMap.TrackedEntity tracker = world == null ? null : world.getChunkSource().chunkMap.entityMap.get(this.entity.getId());
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+ if (tracker == null) {
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+ return java.util.Collections.emptySet();
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+ }
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+
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+ Set<org.bukkit.entity.Player> set = new java.util.HashSet<>(tracker.seenBy.size());
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+ for (net.minecraft.server.network.ServerPlayerConnection connection : tracker.seenBy) {
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+ set.add(connection.getPlayer().getBukkitEntity().getPlayer());
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+ }
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+ return set;
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+ }
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+ // Paper end - tracked players API
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}
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