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337a94cda9
Upstream has released updates that appear to apply and compile correctly Paper Changes: PaperMC/Paper@d1a72ea Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11405) PaperMC/Paper@0a53f1d Set default drop behavior for player deaths (#11380) PaperMC/Paper@951e7dd Fix TrialSpawner forgetting assigned mob when placed by player (#11381) PaperMC/Paper@13a2395 Fix enable-player-collisions playing sounds when set to false (#11390) PaperMC/Paper@1348e44 Prevent NPE when serializing unresolved profile (#11407) Gale Changes: Dreeam-qwq/Gale@f346681 Updated Upstream (Paper) Dreeam-qwq/Gale@bba1737 Updated Upstream (Paper) Purpur Changes: PurpurMC/Purpur@88352c3 Updated Upstream (Paper) PurpurMC/Purpur@dee41bc Updated Upstream (Paper) PurpurMC/Purpur@fdfc12e Updated Upstream (Paper) PurpurMC/Purpur@bc7bcbb Fix elytra durability setting not working properly (#1589) PurpurMC/Purpur@8af4ea6 Updated Upstream (Paper) PurpurMC/Purpur@8332fa4 Updated Upstream (Paper)
62 lines
4.6 KiB
Diff
62 lines
4.6 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/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index 4d91b50e527320647f6c9aa20fc5da071c3fdee0..dde015810f6e914ad99dcb8ab66c7aa33e1b8c26 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -1246,7 +1246,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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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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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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index ab85eaf62ba901ace0ed25773df980a5ac97729a..db125b4d4e68f3c9f8c661b6b5f08d26f146008e 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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@@ -200,7 +200,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
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private boolean hasPlayedBefore = false;
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private final ConversationTracker conversationTracker = new ConversationTracker();
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private final Set<String> channels = new HashSet<String>();
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- private final Map<UUID, Set<WeakReference<Plugin>>> invertedVisibilityEntities = new HashMap<>();
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+ private final Map<UUID, Set<WeakReference<Plugin>>> invertedVisibilityEntities = new it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<>(); // SparklyPaper - optimize canSee checks
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private final Set<UUID> unlistedEntities = new HashSet<>(); // Paper - Add Listing API for Player
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private static final WeakHashMap<Plugin, WeakReference<Plugin>> pluginWeakReferences = new WeakHashMap<>();
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private int hash = 0;
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@@ -2264,9 +2264,16 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
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@Override
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public boolean canSee(org.bukkit.entity.Entity entity) {
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- return this.equals(entity) || entity.isVisibleByDefault() ^ this.invertedVisibilityEntities.containsKey(entity.getUniqueId()); // SPIGOT-7312: Can always see self
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+ return this.equals(entity) || entity.isVisibleByDefault() ^ (!invertedVisibilityEntities.isEmpty() && this.invertedVisibilityEntities.containsKey(entity.getUniqueId())); // SPIGOT-7312: Can always see self // SparklyPaper - optimize canSee checks
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}
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+ // SparklyPaper - optimize canSee checks
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+ // The check in ChunkMap#updatePlayer already rejects if it is the same entity, so we don't need to check it twice, especially because CraftPlayer's equals check is a bit expensive
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+ public boolean canSeeChunkMapUpdatePlayer(org.bukkit.entity.Entity entity) {
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+ return entity.isVisibleByDefault() ^ (!invertedVisibilityEntities.isEmpty() && this.invertedVisibilityEntities.containsKey(entity.getUniqueId())); // SPIGOT-7312: Can always see self // SparklyPaper - optimize canSee checks
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+ }
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+ // SparklyPaper end
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+
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public boolean canSeePlayer(UUID uuid) {
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org.bukkit.entity.Entity entity = this.getServer().getPlayer(uuid);
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