mirror of
https://github.com/Winds-Studio/Leaf.git
synced 2025-12-20 15:39:37 +00:00
62 lines
4.6 KiB
Diff
62 lines
4.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: MrPowerGamerBR <git@mrpowergamerbr.com>
|
|
Date: Thu, 23 Nov 2023 14:36:47 -0300
|
|
Subject: [PATCH] SparklyPaper: Optimize "canSee" checks
|
|
|
|
Original project: https://github.com/SparklyPower/SparklyPaper
|
|
|
|
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
|
|
|
|
First, we change the original "HashMap" to fastutil's "Object2ObjectOpenHashMap", because the containsKey throughput is better
|
|
|
|
Then, we add a "isEmpty()" check before attempting to check if the map contains something
|
|
|
|
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
|
|
|
|
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.
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
|
|
index 5e95d84c37d2d36d62a0b5b3f55bf28bd40bf7ee..2109fedc6d09fb783e0042289a9c5d372933f4ff 100644
|
|
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
|
|
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
|
|
@@ -1434,7 +1434,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
|
|
// Paper end - Configurable entity tracking range by Y
|
|
|
|
// CraftBukkit start - respect vanish API
|
|
- if (flag && !player.getBukkitEntity().canSee(this.entity.getBukkitEntity())) { // Paper - only consider hits
|
|
+ if (flag && !player.getBukkitEntity().canSeeChunkMapUpdatePlayer(this.entity.getBukkitEntity())) { // Paper - only consider hits // SparklyPaper - optimize canSee checks
|
|
flag = false;
|
|
}
|
|
// CraftBukkit end
|
|
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
|
|
index bbc8135343b8206c5348eab802a257555b16836f..3bb35f002cecee7b5ffac8f8aedcce2336d662f1 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
|
|
@@ -198,7 +198,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
|
|
private boolean hasPlayedBefore = false;
|
|
private final ConversationTracker conversationTracker = new ConversationTracker();
|
|
private final Set<String> channels = new HashSet<String>();
|
|
- private final Map<UUID, Set<WeakReference<Plugin>>> invertedVisibilityEntities = new HashMap<>();
|
|
+ private final Map<UUID, Set<WeakReference<Plugin>>> invertedVisibilityEntities = new it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<>(); // SparklyPaper - optimize canSee checks
|
|
private final Set<UUID> unlistedEntities = new HashSet<>(); // Paper - Add Listing API for Player
|
|
private static final WeakHashMap<Plugin, WeakReference<Plugin>> pluginWeakReferences = new WeakHashMap<>();
|
|
private int hash = 0;
|
|
@@ -2247,9 +2247,16 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
|
|
|
|
@Override
|
|
public boolean canSee(org.bukkit.entity.Entity entity) {
|
|
- return this.equals(entity) || entity.isVisibleByDefault() ^ this.invertedVisibilityEntities.containsKey(entity.getUniqueId()); // SPIGOT-7312: Can always see self
|
|
+ return this.equals(entity) || entity.isVisibleByDefault() ^ (!invertedVisibilityEntities.isEmpty() && this.invertedVisibilityEntities.containsKey(entity.getUniqueId())); // SPIGOT-7312: Can always see self // SparklyPaper - optimize canSee checks
|
|
}
|
|
|
|
+ // SparklyPaper - optimize canSee checks
|
|
+ // 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
|
|
+ public boolean canSeeChunkMapUpdatePlayer(org.bukkit.entity.Entity entity) {
|
|
+ return entity.isVisibleByDefault() ^ (!invertedVisibilityEntities.isEmpty() && this.invertedVisibilityEntities.containsKey(entity.getUniqueId())); // SPIGOT-7312: Can always see self // SparklyPaper - optimize canSee checks
|
|
+ }
|
|
+ // SparklyPaper end
|
|
+
|
|
public boolean canSeePlayer(UUID uuid) {
|
|
org.bukkit.entity.Entity entity = this.getServer().getPlayer(uuid);
|
|
|