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bffb08c2f9
Paper/patches/server/1031-Remove-streams-for-villager-AI.patch
Tamion bffb08c2f9
Deprecate Player#boostElytra (#9899) 
The Paper method was chosen for deprecation because it was more
restrictive in that it has an isGliding check.
2023-11-04 13:20:13 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Thu, 27 Aug 2020 20:51:40 -0700
Subject: [PATCH] Remove streams for villager AI
diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java b/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
index b45c4f50705f80163d44d9e588f86a5770f5be38..879e16d4c881a97f95eeff8016f9900d6cfe10c2 100644
--- a/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
@@ -52,7 +52,7 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
if (this.hasRequiredMemories(entity)) {
this.status = Behavior.Status.RUNNING;
this.orderPolicy.apply(this.behaviors);
- this.runningPolicy.apply(this.behaviors.stream(), world, entity, time);
+ this.runningPolicy.apply(this.behaviors.entries, world, entity, time);
return true;
} else {
return false;
@@ -61,11 +61,13 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
@Override
public final void tickOrStop(ServerLevel world, E entity, long time) {
- this.behaviors.stream().filter((task) -> {
- return task.getStatus() == Behavior.Status.RUNNING;
- }).forEach((task) -> {
- task.tickOrStop(world, entity, time);
- });
+ // Paper start
+ for (BehaviorControl<? super E> task : this.behaviors) {
+ if (task.getStatus() == Behavior.Status.RUNNING) {
+ task.tickOrStop(world, entity, time);
+ }
+ }
+ // Paper end
if (this.behaviors.stream().noneMatch((task) -> {
return task.getStatus() == Behavior.Status.RUNNING;
})) {
@@ -77,11 +79,13 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
@Override
public final void doStop(ServerLevel world, E entity, long time) {
this.status = Behavior.Status.STOPPED;
- this.behaviors.stream().filter((task) -> {
- return task.getStatus() == Behavior.Status.RUNNING;
- }).forEach((task) -> {
- task.doStop(world, entity, time);
- });
+ // Paper start
+ for (BehaviorControl<? super E> behavior : this.behaviors) {
+ if (behavior.getStatus() == Behavior.Status.RUNNING) {
+ behavior.doStop(world, entity, time);
+ }
+ }
+ // Paper end
this.exitErasedMemories.forEach(entity.getBrain()::eraseMemory);
}
@@ -117,25 +121,31 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
public static enum RunningPolicy {
RUN_ONE {
@Override
- public <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
- tasks.filter((task) -> {
- return task.getStatus() == Behavior.Status.STOPPED;
- }).filter((task) -> {
- return task.tryStart(world, entity, time);
- }).findFirst();
+ // Paper start - remove streams
+ public <E extends LivingEntity> void apply(List<ShufflingList.WeightedEntry<BehaviorControl<? super E>>> tasks, ServerLevel world, E entity, long time) {
+ for (ShufflingList.WeightedEntry<BehaviorControl<? super E>> task : tasks) {
+ final BehaviorControl<? super E> behavior = task.getData();
+ if (behavior.getStatus() == Behavior.Status.STOPPED && behavior.tryStart(world, entity, time)) {
+ break;
+ }
+ }
+ // Paper end - remove streams
}
},
TRY_ALL {
@Override
- public <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
- tasks.filter((task) -> {
- return task.getStatus() == Behavior.Status.STOPPED;
- }).forEach((task) -> {
- task.tryStart(world, entity, time);
- });
+ // Paper start - remove streams
+ public <E extends LivingEntity> void apply(List<ShufflingList.WeightedEntry<BehaviorControl<? super E>>> tasks, ServerLevel world, E entity, long time) {
+ for (ShufflingList.WeightedEntry<BehaviorControl<? super E>> task : tasks) {
+ final BehaviorControl<? super E> behavior = task.getData();
+ if (behavior.getStatus() == Behavior.Status.STOPPED) {
+ behavior.tryStart(world, entity, time);
+ }
+ }
+ // Paper end - remove streams
}
};
- public abstract <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time);
+ public abstract <E extends LivingEntity> void apply(List<ShufflingList.WeightedEntry<BehaviorControl<? super E>>> tasks, ServerLevel world, E entity, long time); // Paper - remove streams
}
}
diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/ShufflingList.java b/src/main/java/net/minecraft/world/entity/ai/behavior/ShufflingList.java
index 731ef21dbbd25d6924717de42f4569a9b5935643..fe3ab3d388f0481fb0db06b7f730f868dbf8e8a5 100644
--- a/src/main/java/net/minecraft/world/entity/ai/behavior/ShufflingList.java
+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/ShufflingList.java
@@ -14,7 +14,7 @@ import java.util.stream.Stream;
import net.minecraft.util.RandomSource;
public class ShufflingList<U> implements Iterable<U> {
- protected final List<ShufflingList.WeightedEntry<U>> entries;
+ public final List<ShufflingList.WeightedEntry<U>> entries; // Paper - public
private final RandomSource random = RandomSource.create();
private final boolean isUnsafe; // Paper
diff --git a/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java b/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
index 1dfcc5cba6ffb463acf161a23fff1ca452184290..61a164c5bfc86faa3f4d04a66e0257016cfd937d 100644
--- a/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
+++ b/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
@@ -25,13 +25,16 @@ public class NearestItemSensor extends Sensor<Mob> {
protected void doTick(ServerLevel world, Mob entity) {
Brain<?> brain = entity.getBrain();
List<ItemEntity> list = world.getEntitiesOfClass(ItemEntity.class, entity.getBoundingBox().inflate(32.0D, 16.0D, 32.0D), (itemEntity) -> {
- return true;
+ return itemEntity.closerThan(entity, MAX_DISTANCE_TO_WANTED_ITEM) && entity.wantsToPickUp(itemEntity.getItem()); // Paper - move predicate into getEntities
});
- list.sort(Comparator.comparingDouble(entity::distanceToSqr));
+ list.sort((e1, e2) -> Double.compare(entity.distanceToSqr(e1), entity.distanceToSqr(e2))); // better to take the sort perf hit than using line of sight more than we need to.
+ // Paper start - remove streams
// Paper start - remove streams in favour of lists
ItemEntity nearest = null;
- for (ItemEntity entityItem : list) {
- if (entity.wantsToPickUp(entityItem.getItem()) && entityItem.closerThan(entity, 32.0D) && entity.hasLineOfSight(entityItem)) {
+ for (int i = 0; i < list.size(); i++) {
+ ItemEntity entityItem = list.get(i);
+ if (entity.hasLineOfSight(entityItem)) {
+ // Paper end - remove streams
nearest = entityItem;
break;
}
diff --git a/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java b/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java
index 312775d0430f793720211dc29bb293503e799d11..9c6b1027dcda0ff4fd357d3cb70fcf5b9f6127a0 100644
--- a/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java
+++ b/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java
@@ -21,25 +21,51 @@ public class PlayerSensor extends Sensor<LivingEntity> {
@Override
protected void doTick(ServerLevel world, LivingEntity entity) {
- List<Player> players = new java.util.ArrayList<>(world.players());
- players.removeIf(player -> !EntitySelector.NO_SPECTATORS.test(player) || !entity.closerThan(player, 16.0D));
- players.sort(Comparator.comparingDouble(entity::distanceTo));
+ // Paper start - remove streams
+ io.papermc.paper.util.player.NearbyPlayers nearbyPlayers = world.chunkSource.chunkMap.getNearbyPlayers();
+ net.minecraft.world.phys.Vec3 entityPos = entity.position();
+ com.destroystokyo.paper.util.maplist.ReferenceList<net.minecraft.server.level.ServerPlayer> nearby = nearbyPlayers.getPlayersByChunk(
+ entity.chunkPosition().x,
+ entity.chunkPosition().z,
+ io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.GENERAL_REALLY_SMALL
+ );
+
+ List<Player> players = new java.util.ArrayList<>(nearby == null ? 0 : nearby.size());
+ if (nearby != null) {
+ Object[] rawData = nearby.getRawData();
+ for (int index = 0, len = nearby.size(); index < len; ++index) {
+ net.minecraft.server.level.ServerPlayer player = (net.minecraft.server.level.ServerPlayer)rawData[index];
+ if (player.isSpectator()) {
+ continue;
+ }
+ if (player.distanceToSqr(entityPos.x, entityPos.y, entityPos.z) >= (16.0 * 16.0)) {
+ continue;
+ }
+ players.add((Player)player);
+ }
+ }
+ players.sort((e1, e2) -> Double.compare(entity.distanceToSqr(e1), entity.distanceToSqr(e2)));
Brain<?> brain = entity.getBrain();
brain.setMemory(MemoryModuleType.NEAREST_PLAYERS, players);
- Player nearest = null, nearestTargetable = null;
- for (Player player : players) {
- if (Sensor.isEntityTargetable(entity, player)) {
- if (nearest == null) nearest = player;
- if (Sensor.isEntityAttackable(entity, player)) {
- nearestTargetable = player;
- break; // Both variables are assigned, no reason to loop further
- }
+ Player firstTargetable = null;
+ Player firstAttackable = null;
+ for (int index = 0, len = players.size(); index < len; ++index) {
+ Player player = players.get(index);
+ if (firstTargetable == null && isEntityTargetable(entity, player)) {
+ firstTargetable = player;
+ }
+ if (firstAttackable == null && isEntityAttackable(entity, player)) {
+ firstAttackable = player;
+ }
+
+ if (firstAttackable != null && firstTargetable != null) {
+ break;
}
}
- brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_PLAYER, nearest);
- brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_ATTACKABLE_PLAYER, nearestTargetable);
- // Paper end
+ brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_PLAYER, firstTargetable);
+ brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_ATTACKABLE_PLAYER, Optional.ofNullable(firstAttackable));
+ // Paper end - remove streams
}
}
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