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31 lines
1.6 KiB
Diff
31 lines
1.6 KiB
Diff
From 2d10001164d6563f0776f9817261f653e036e67c Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Sun, 24 Mar 2019 18:52:31 +0000
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Subject: [PATCH] Don't update entity trackers for worlds without players
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PlayerList#moveToWorld already untracks the player from the player list,
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meaning that we do not need to worry about this untracking players
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who've left the world, The server also untracks a player during
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disconnect, handing yet another case.
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If we don't need to untrack players who've left the world, it should be
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reasonably save to do this, as we're not going to be performing any
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server->client updates here, which is what this code is intended to do,
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and all players should be untracked.
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index ce39ea09e..b93fccf91 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -1113,7 +1113,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
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this.methodProfiler.exit();
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this.methodProfiler.enter("tracker");
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- worldserver.getTracker().updatePlayers();
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+ if (playerList.players.size() > 0) worldserver.getTracker().updatePlayers(); // Paper - No players, why spend time tracking them? (See patch)
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this.methodProfiler.exit();
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this.methodProfiler.exit();
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worldserver.explosionDensityCache.clear(); // Paper - Optimize explosions
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--
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2.21.0
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