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Paper-Old/patches/server/1017-Optimise-nearby-player-retrieval.patch
Spottedleaf 1281f4f552 Make region/lock shift accessors per world
This has been done to ensure that the shifts are not used
until the world object is being constructed, which is before
the global configuration is initialised. There also isn't any
reason for these shifts to be global anyways.
2023-12-30 15:45:24 -08:00

163 Zeilen
8.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 23 Sep 2023 23:15:52 -0700
Subject: [PATCH] Optimise nearby player retrieval
Instead of searching/testing every player online on the server,
we can instead use the nearby player tracking system to reduce
the number of tests per search.
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 15dc5af10041f71b5d377353302fb09a34bcda82..1d44387ea8665f7bbf3da04a1dd882f586ff37ac 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -582,6 +582,115 @@ public class ServerLevel extends Level implements WorldGenLevel {
this.lagCompensationTick = (System.nanoTime() - net.minecraft.server.MinecraftServer.SERVER_INIT) / (java.util.concurrent.TimeUnit.MILLISECONDS.toNanos(50L));
}
// Paper end - lag compensation
+ // Paper start - optimise nearby player retrieval
+ @Override
+ public java.util.List<net.minecraft.world.entity.player.Player> getNearbyPlayers(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate,
+ net.minecraft.world.entity.LivingEntity entity,
+ net.minecraft.world.phys.AABB box) {
+ return this.getNearbyEntities(Player.class, targetPredicate, entity, box);
+ }
+
+ @Override
+ public Player getNearestPlayer(double x, double y, double z, double maxDistance, @Nullable Predicate<Entity> targetPredicate) {
+ if (maxDistance > 0.0D) {
+ io.papermc.paper.util.player.NearbyPlayers players = this.chunkSource.chunkMap.getNearbyPlayers();
+
+ com.destroystokyo.paper.util.maplist.ReferenceList<ServerPlayer> nearby = players.getPlayersByBlock(
+ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(x),
+ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(z),
+ io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.GENERAL
+ );
+
+ if (nearby == null) {
+ return null;
+ }
+
+ ServerPlayer nearest = null;
+ double nearestDist = maxDistance * maxDistance;
+ Object[] rawData = nearby.getRawData();
+ for (int i = 0, len = nearby.size(); i < len; ++i) {
+ ServerPlayer player = (ServerPlayer)rawData[i];
+ double dist = player.distanceToSqr(x, y, z);
+ if (dist >= nearestDist) {
+ continue;
+ }
+
+ if (targetPredicate == null || targetPredicate.test(player)) {
+ nearest = player;
+ nearestDist = dist;
+ }
+ }
+
+ return nearest;
+ } else {
+ ServerPlayer nearest = null;
+ double nearestDist = Double.MAX_VALUE;
+
+ for (ServerPlayer player : this.players()) {
+ double dist = player.distanceToSqr(x, y, z);
+ if (dist >= nearestDist) {
+ continue;
+ }
+
+ if (targetPredicate == null || targetPredicate.test(player)) {
+ nearest = player;
+ nearestDist = dist;
+ }
+ }
+
+ return nearest;
+ }
+ }
+
+ @Override
+ public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, LivingEntity entity) {
+ return this.getNearestPlayer(targetPredicate, entity, entity.getX(), entity.getY(), entity.getZ());
+ }
+
+ @Override
+ public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, LivingEntity entity,
+ double x, double y, double z) {
+ double range = targetPredicate.range;
+ if (range > 0.0D) {
+ io.papermc.paper.util.player.NearbyPlayers players = this.chunkSource.chunkMap.getNearbyPlayers();
+
+ com.destroystokyo.paper.util.maplist.ReferenceList<ServerPlayer> nearby = players.getPlayersByBlock(
+ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(x),
+ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(z),
+ io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.GENERAL
+ );
+
+ if (nearby == null) {
+ return null;
+ }
+
+ ServerPlayer nearest = null;
+ double nearestDist = Double.MAX_VALUE;
+ Object[] rawData = nearby.getRawData();
+ for (int i = 0, len = nearby.size(); i < len; ++i) {
+ ServerPlayer player = (ServerPlayer)rawData[i];
+ double dist = player.distanceToSqr(x, y, z);
+ if (dist >= nearestDist) {
+ continue;
+ }
+
+ if (targetPredicate.test(entity, player)) {
+ nearest = player;
+ nearestDist = dist;
+ }
+ }
+
+ return nearest;
+ } else {
+ return this.getNearestEntity(this.players(), targetPredicate, entity, x, y, z);
+ }
+ }
+
+ @Nullable
+ public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, double x, double y, double z) {
+ return this.getNearestPlayer(targetPredicate, null, x, y, z);
+ }
+ // Paper end - optimise nearby player retrieval
// Add env and gen to constructor, IWorldDataServer -> WorldDataServer
public ServerLevel(MinecraftServer minecraftserver, Executor executor, LevelStorageSource.LevelStorageAccess convertable_conversionsession, PrimaryLevelData iworlddataserver, ResourceKey<Level> resourcekey, LevelStem worlddimension, ChunkProgressListener worldloadlistener, boolean flag, long i, List<CustomSpawner> list, boolean flag1, @Nullable RandomSequences randomsequences, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider) {
diff --git a/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java b/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java
index 58422f00c7d64dbd1cf6d7211c9838875cbe7778..c157309ac78e7af084d3acb6e8b2bcd469a39d5e 100644
--- a/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java
+++ b/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java
@@ -10,7 +10,7 @@ public class TargetingConditions {
public static final TargetingConditions DEFAULT = forCombat();
private static final double MIN_VISIBILITY_DISTANCE_FOR_INVISIBLE_TARGET = 2.0D;
private final boolean isCombat;
- private double range = -1.0D;
+ public double range = -1.0D; // Paper - public
private boolean checkLineOfSight = true;
private boolean testInvisible = true;
@Nullable
diff --git a/src/main/java/net/minecraft/world/level/EntityGetter.java b/src/main/java/net/minecraft/world/level/EntityGetter.java
index b3293a722fb5c5262a777402140c764c03367800..aaa07fcd4b32fe0de88142ab30378327a01f1729 100644
--- a/src/main/java/net/minecraft/world/level/EntityGetter.java
+++ b/src/main/java/net/minecraft/world/level/EntityGetter.java
@@ -230,9 +230,13 @@ public interface EntityGetter {
T livingEntity = null;
for(T livingEntity2 : entityList) {
+ // Paper start - move up
+ // don't check entities outside closest range
+ double e = livingEntity2.distanceToSqr(x, y, z);
+ if (d == -1.0D || e < d) {
+ // Paper end - move up
if (targetPredicate.test(entity, livingEntity2)) {
- double e = livingEntity2.distanceToSqr(x, y, z);
- if (d == -1.0D || e < d) {
+ // Paper - move up
d = e;
livingEntity = livingEntity2;
}