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Paper/patches/server/0768-Remove-streams-for-villager-AI.patch
Nassim Jahnke 1358d1e914
Updated Upstream (CraftBukkit/Spigot) (#7580) 
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
881e06e5 PR-725: Add Item Unlimited Lifetime APIs

CraftBukkit Changes:
74c08312 SPIGOT-6962: Call EntityChangeBlockEvent when when FallingBlockEntity starts to fall
64db5126 SPIGOT-6959: Make /loot command ignore empty items for spawn
2d760831 Increase outdated build delay
9ed7e4fb SPIGOT-6138, SPIGOT-6415: Don't call CreatureSpawnEvent after cross-dimensional travel
fc4ad813 SPIGOT-6895: Trees grown with applyBoneMeal() don't fire the StructureGrowthEvent
59733a2e SPIGOT-6961: Actually return a copy of the ItemMeta

Spigot Changes:
ffceeae3 SPIGOT-6956: Drop unload queue patch as attempt at fixing stop issue
e19ddabd PR-1011: Add Item Unlimited Lifetime APIs
34d40b0e SPIGOT-2942: give command fires PlayerDropItemEvent, cancelling it causes Item Duplication
2022-03-13 08:47:54 +01:00

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Originalformat Blame Verlauf

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <spottedleaf@spottedleaf.dev>
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 e644bdd3a6f7c09a44149da03587b796674fa568..c67c448e0d8bdd788b94189651304110694c95da 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
@@ -30,11 +30,19 @@ public class GateBehavior<E extends LivingEntity> extends Behavior<E> {
@Override
protected boolean canStillUse(ServerLevel world, E entity, long time) {
- return this.behaviors.stream().filter((task) -> {
- return task.getStatus() == Behavior.Status.RUNNING;
- }).anyMatch((task) -> {
- return task.canStillUse(world, entity, time);
- });
+ // Paper start - remove streams
+ List<ShufflingList.WeightedEntry<Behavior<? super E>>> entries = this.behaviors.entries;
+ for (int i = 0; i < entries.size(); i++) {
+ ShufflingList.WeightedEntry<Behavior<? super E>> entry = entries.get(i);
+ Behavior<? super E> behavior = entry.getData();
+ if (behavior.getStatus() == Status.RUNNING) {
+ if (behavior.canStillUse(world, entity, time)) {
+ return true;
+ }
+ }
+ }
+ return false;
+ // Paper end - remove streams
}
@Override
@@ -45,25 +53,35 @@ public class GateBehavior<E extends LivingEntity> extends Behavior<E> {
@Override
protected void start(ServerLevel world, E entity, long time) {
this.orderPolicy.apply(this.behaviors);
- this.runningPolicy.apply(this.behaviors.stream(), world, entity, time);
+ this.runningPolicy.apply(this.behaviors.entries, world, entity, time); // Paper - remove streams
}
@Override
protected void tick(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 - remove streams
+ List<ShufflingList.WeightedEntry<Behavior<? super E>>> entries = this.behaviors.entries;
+ for (int i = 0; i < entries.size(); i++) {
+ ShufflingList.WeightedEntry<Behavior<? super E>> entry = entries.get(i);
+ Behavior<? super E> behavior = entry.getData();
+ if (behavior.getStatus() == Status.RUNNING) {
+ behavior.tickOrStop(world, entity, time);
+ }
+ }
+ // Paper end - remove streams
}
@Override
protected void stop(ServerLevel world, E entity, long time) {
- this.behaviors.stream().filter((task) -> {
- return task.getStatus() == Behavior.Status.RUNNING;
- }).forEach((task) -> {
- task.doStop(world, entity, time);
- });
+ // Paper start - remove streams
+ List<ShufflingList.WeightedEntry<Behavior<? super E>>> entries = this.behaviors.entries;
+ for (int i = 0; i < entries.size(); i++) {
+ ShufflingList.WeightedEntry<Behavior<? super E>> entry = entries.get(i);
+ Behavior<? super E> behavior = entry.getData();
+ if (behavior.getStatus() == Status.RUNNING) {
+ behavior.doStop(world, entity, time);
+ }
+ }
+ // Paper end - remove streams
this.exitErasedMemories.forEach(entity.getBrain()::eraseMemory);
}
@@ -94,25 +112,33 @@ public class GateBehavior<E extends LivingEntity> extends Behavior<E> {
public static enum RunningPolicy {
RUN_ONE {
@Override
- public <E extends LivingEntity> void apply(Stream<Behavior<? 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<Behavior<? super E>>> tasks, ServerLevel world, E entity, long time) {
+ for (int i = 0; i < tasks.size(); i++) {
+ ShufflingList.WeightedEntry<Behavior<? super E>> task = tasks.get(i);
+ Behavior<? super E> behavior = task.getData();
+ if (behavior.getStatus() == Status.STOPPED && behavior.tryStart(world, entity, time)) {
+ break;
+ }
+ }
+ // Paper end - remove streams
}
},
TRY_ALL {
@Override
- public <E extends LivingEntity> void apply(Stream<Behavior<? 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<Behavior<? super E>>> tasks, ServerLevel world, E entity, long time) {
+ for (int i = 0; i < tasks.size(); i++) {
+ ShufflingList.WeightedEntry<Behavior<? super E>> task = tasks.get(i);
+ Behavior<? super E> behavior = task.getData();
+ if (behavior.getStatus() == Status.STOPPED) {
+ behavior.tryStart(world, entity, time);
+ }
+ }
+ // Paper end - remove streams
}
};
- public abstract <E extends LivingEntity> void apply(Stream<Behavior<? super E>> tasks, ServerLevel world, E entity, long time);
+ public abstract <E extends LivingEntity> void apply(List<ShufflingList.WeightedEntry<Behavior<? 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 1bc34453933bc7590af45a5559a4fc75eb3e0c5c..204ca4fbd89bdadd902529f1f191df46fce3cace 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
@@ -12,7 +12,7 @@ import java.util.Random;
import java.util.stream.Stream;
public class ShufflingList<U> {
- protected final List<ShufflingList.WeightedEntry<U>> entries;
+ public final List<ShufflingList.WeightedEntry<U>> entries; // Paper - public
private final Random random = new Random();
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 49f3b25d28072b61f5cc97260df61df892a58714..71f2692c83feafbb31f45427e6c738cb3881c82c 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
@@ -25,17 +25,20 @@ 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(8.0D, 4.0D, 8.0D), (itemEntity) -> {
- return true;
+ return itemEntity.closerThan(entity, 9.0D) && 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, 9.0D) && entity.hasLineOfSight(entityItem)) {
+ for (int i = 0; i < list.size(); i++) {
+ ItemEntity entityItem = list.get(i);
+ if (entity.hasLineOfSight(entityItem)) {
nearest = entityItem;
break;
}
}
+ // Paper end - remove streams
brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_WANTED_ITEM, Optional.ofNullable(nearest));
// Paper end
}
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..75d9c4f011b5a97def215784c92bb57bbb35d06b 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 +21,30 @@ 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
+ List<Player> players = (List)world.getNearbyPlayers(entity, entity.getX(), entity.getY(), entity.getZ(), 16.0D, EntitySelector.NO_SPECTATORS);
+ 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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