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1. Wet the drys 2. Dry the wets 3. Wet the drys 4. Dry the wets 5. Wet the drys 6. Now dust the wets
31 lines
2.3 KiB
Diff
31 lines
2.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: MrPowerGamerBR <git@mrpowergamerbr.com>
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Date: Thu, 23 Nov 2023 14:36:47 -0300
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Subject: [PATCH] SparklyPaper: Optimize "canSee" checks
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Original project: https://github.com/SparklyPower/SparklyPaper
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The "canSee" checks is in a hot path, invoked by each entity for each player on the server if they are in tracking range, so optimizing it is pretty nice
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First, we change the original "HashMap" to fastutil's "Object2ObjectOpenHashMap", because the containsKey throughput is better
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Then, we add a "isEmpty()" check before attempting to check if the map contains something
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This seems stupid, but it does seem that it improves the performance a bit, and it makes sense, "containsKey(...)" does not attempt to check the map size before attempting to check if the map contains the key
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We also create a "canSee" method tailored for "ChunkMap#updatePlayer()", a method without the equals check (the "updatePlayer()" already checks if the entity is the same entity) because the CraftPlayer's `equals()` check is a *bit* expensive compared to only checking the object's identity, and because the identity has already been check, we don't need to check it twice.
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diff --git a/net/minecraft/server/level/ChunkMap.java b/net/minecraft/server/level/ChunkMap.java
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index 6a9fdb6329f177aca1274336a8e5be70ca3ce931..5d9d233e3a568aa6297ed9c703fa450f98158602 100644
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--- a/net/minecraft/server/level/ChunkMap.java
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+++ b/net/minecraft/server/level/ChunkMap.java
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@@ -1225,7 +1225,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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flag = flag && this.entity.broadcastToPlayer(player) && ChunkMap.this.isChunkTracked(player, this.entity.chunkPosition().x, this.entity.chunkPosition().z);
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// Paper end - Configurable entity tracking range by Y
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// CraftBukkit start - respect vanish API
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- if (flag && !player.getBukkitEntity().canSee(this.entity.getBukkitEntity())) { // Paper - only consider hits
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+ if (flag && !player.getBukkitEntity().canSeeChunkMapUpdatePlayer(this.entity.getBukkitEntity())) { // Paper - only consider hits // SparklyPaper - optimize canSee checks
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flag = false;
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}
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// CraftBukkit end
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