mirror of
https://github.com/PaperMC/Paper.git
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163 lines
8.2 KiB
Diff
163 lines
8.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Sat, 23 Sep 2023 23:15:52 -0700
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Subject: [PATCH] Optimise nearby player retrieval
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Instead of searching/testing every player online on the server,
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we can instead use the nearby player tracking system to reduce
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the number of tests per search.
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index 9a7d5aa722eb1e56da8e9e11b46179c9f9ab716f..672dcf1d82b4a858167be678888d3fb672c1384a 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -581,6 +581,115 @@ public class ServerLevel extends Level implements WorldGenLevel {
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this.lagCompensationTick = (System.nanoTime() - net.minecraft.server.MinecraftServer.SERVER_INIT) / (java.util.concurrent.TimeUnit.MILLISECONDS.toNanos(50L));
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}
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// Paper end - lag compensation
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+ // Paper start - optimise nearby player retrieval
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+ @Override
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+ public java.util.List<net.minecraft.world.entity.player.Player> getNearbyPlayers(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate,
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+ net.minecraft.world.entity.LivingEntity entity,
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+ net.minecraft.world.phys.AABB box) {
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+ return this.getNearbyEntities(Player.class, targetPredicate, entity, box);
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+ }
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+
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+ @Override
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+ public Player getNearestPlayer(double x, double y, double z, double maxDistance, @Nullable Predicate<Entity> targetPredicate) {
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+ if (maxDistance > 0.0D) {
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+ io.papermc.paper.util.player.NearbyPlayers players = this.chunkSource.chunkMap.getNearbyPlayers();
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+
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+ com.destroystokyo.paper.util.maplist.ReferenceList<ServerPlayer> nearby = players.getPlayersByBlock(
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+ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(x),
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+ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(z),
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+ io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.GENERAL
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+ );
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+
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+ if (nearby == null) {
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+ return null;
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+ }
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+
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+ ServerPlayer nearest = null;
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+ double nearestDist = maxDistance * maxDistance;
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+ Object[] rawData = nearby.getRawData();
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+ for (int i = 0, len = nearby.size(); i < len; ++i) {
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+ ServerPlayer player = (ServerPlayer)rawData[i];
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+ double dist = player.distanceToSqr(x, y, z);
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+ if (dist >= nearestDist) {
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+ continue;
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+ }
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+
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+ if (targetPredicate == null || targetPredicate.test(player)) {
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+ nearest = player;
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+ nearestDist = dist;
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+ }
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+ }
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+
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+ return nearest;
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+ } else {
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+ ServerPlayer nearest = null;
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+ double nearestDist = Double.MAX_VALUE;
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+
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+ for (ServerPlayer player : this.players()) {
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+ double dist = player.distanceToSqr(x, y, z);
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+ if (dist >= nearestDist) {
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+ continue;
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+ }
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+
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+ if (targetPredicate == null || targetPredicate.test(player)) {
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+ nearest = player;
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+ nearestDist = dist;
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+ }
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+ }
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+
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+ return nearest;
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+ }
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+ }
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+
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+ @Override
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+ public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, LivingEntity entity) {
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+ return this.getNearestPlayer(targetPredicate, entity, entity.getX(), entity.getY(), entity.getZ());
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+ }
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+
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+ @Override
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+ public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, LivingEntity entity,
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+ double x, double y, double z) {
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+ double range = targetPredicate.range;
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+ if (range > 0.0D) {
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+ io.papermc.paper.util.player.NearbyPlayers players = this.chunkSource.chunkMap.getNearbyPlayers();
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+
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+ com.destroystokyo.paper.util.maplist.ReferenceList<ServerPlayer> nearby = players.getPlayersByBlock(
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+ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(x),
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+ io.papermc.paper.util.CoordinateUtils.getBlockCoordinate(z),
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+ io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.GENERAL
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+ );
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+
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+ if (nearby == null) {
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+ return null;
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+ }
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+
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+ ServerPlayer nearest = null;
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+ double nearestDist = Double.MAX_VALUE;
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+ Object[] rawData = nearby.getRawData();
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+ for (int i = 0, len = nearby.size(); i < len; ++i) {
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+ ServerPlayer player = (ServerPlayer)rawData[i];
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+ double dist = player.distanceToSqr(x, y, z);
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+ if (dist >= nearestDist) {
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+ continue;
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+ }
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+
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+ if (targetPredicate.test(entity, player)) {
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+ nearest = player;
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+ nearestDist = dist;
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+ }
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+ }
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+
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+ return nearest;
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+ } else {
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+ return this.getNearestEntity(this.players(), targetPredicate, entity, x, y, z);
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+ }
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+ }
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+
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+ @Nullable
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+ public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions targetPredicate, double x, double y, double z) {
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+ return this.getNearestPlayer(targetPredicate, null, x, y, z);
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+ }
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+ // Paper end - optimise nearby player retrieval
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// Add env and gen to constructor, IWorldDataServer -> WorldDataServer
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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) {
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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
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index 58422f00c7d64dbd1cf6d7211c9838875cbe7778..c157309ac78e7af084d3acb6e8b2bcd469a39d5e 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/targeting/TargetingConditions.java
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@@ -10,7 +10,7 @@ public class TargetingConditions {
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public static final TargetingConditions DEFAULT = forCombat();
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private static final double MIN_VISIBILITY_DISTANCE_FOR_INVISIBLE_TARGET = 2.0D;
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private final boolean isCombat;
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- private double range = -1.0D;
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+ public double range = -1.0D; // Paper - public
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private boolean checkLineOfSight = true;
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private boolean testInvisible = true;
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@Nullable
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diff --git a/src/main/java/net/minecraft/world/level/EntityGetter.java b/src/main/java/net/minecraft/world/level/EntityGetter.java
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index b3293a722fb5c5262a777402140c764c03367800..bb685325e6cb2ac5ddccfca8602013e38b4a4891 100644
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--- a/src/main/java/net/minecraft/world/level/EntityGetter.java
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+++ b/src/main/java/net/minecraft/world/level/EntityGetter.java
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@@ -230,9 +230,13 @@ public interface EntityGetter {
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T livingEntity = null;
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for(T livingEntity2 : entityList) {
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+ // Paper start - optimise nearby player retrieval; move up
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+ // don't check entities outside closest range
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+ double e = livingEntity2.distanceToSqr(x, y, z);
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+ if (d == -1.0D || e < d) {
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+ // Paper end - move up
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if (targetPredicate.test(entity, livingEntity2)) {
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- double e = livingEntity2.distanceToSqr(x, y, z);
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- if (d == -1.0D || e < d) {
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+ // Paper - optimise nearby player retrieval; move up
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d = e;
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livingEntity = livingEntity2;
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}
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