mirror of https://github.com/PaperMC/Paper.git
90 lines
4.2 KiB
Diff
90 lines
4.2 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, 19 Jun 2021 22:47:17 -0700
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Subject: [PATCH] Allow removal/addition of entities to entity ticklist during
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tick
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It really doesn't make any sense that we would iterate over removed
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entities during tick. Sure - tick entity checks removed, but
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does it check if the entity is in an entity ticking chunk?
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No it doesn't. So, allowing removal while iteration
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ENSURES only entities MARKED TO TICK are ticked.
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diff --git a/src/main/java/net/minecraft/world/level/entity/EntityTickList.java b/src/main/java/net/minecraft/world/level/entity/EntityTickList.java
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index a176a886235494fdc722030a93658d361bf50f03..4cdfc433df67afcd455422e9baf56f167dd712ae 100644
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--- a/src/main/java/net/minecraft/world/level/entity/EntityTickList.java
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+++ b/src/main/java/net/minecraft/world/level/entity/EntityTickList.java
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@@ -8,57 +8,42 @@ import javax.annotation.Nullable;
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import net.minecraft.world.entity.Entity;
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public class EntityTickList {
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- private Int2ObjectMap<Entity> active = new Int2ObjectLinkedOpenHashMap<>();
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- private Int2ObjectMap<Entity> passive = new Int2ObjectLinkedOpenHashMap<>();
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- @Nullable
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- private Int2ObjectMap<Entity> iterated;
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+ private final io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet<Entity> entities = new io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet<>(true); // Paper - rewrite this, always keep this updated - why would we EVER tick an entity that's not ticking?
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private void ensureActiveIsNotIterated() {
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- if (this.iterated == this.active) {
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- this.passive.clear();
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-
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- for(Int2ObjectMap.Entry<Entity> entry : Int2ObjectMaps.fastIterable(this.active)) {
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- this.passive.put(entry.getIntKey(), entry.getValue());
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- }
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-
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- Int2ObjectMap<Entity> int2ObjectMap = this.active;
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- this.active = this.passive;
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- this.passive = int2ObjectMap;
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- }
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+ // Paper - replace with better logic, do not delay removals
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}
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public void add(Entity entity) {
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io.papermc.paper.util.TickThread.ensureTickThread("Asynchronous entity ticklist addition"); // Paper
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this.ensureActiveIsNotIterated();
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- this.active.put(entity.getId(), entity);
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+ this.entities.add(entity); // Paper - replace with better logic, do not delay removals/additions
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}
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public void remove(Entity entity) {
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io.papermc.paper.util.TickThread.ensureTickThread("Asynchronous entity ticklist removal"); // Paper
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this.ensureActiveIsNotIterated();
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- this.active.remove(entity.getId());
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+ this.entities.remove(entity); // Paper - replace with better logic, do not delay removals/additions
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}
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public boolean contains(Entity entity) {
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- return this.active.containsKey(entity.getId());
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+ return this.entities.contains(entity); // Paper - replace with better logic, do not delay removals/additions
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}
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public void forEach(Consumer<Entity> action) {
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io.papermc.paper.util.TickThread.ensureTickThread("Asynchronous entity ticklist iteration"); // Paper
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- if (this.iterated != null) {
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- throw new UnsupportedOperationException("Only one concurrent iteration supported");
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- } else {
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- this.iterated = this.active;
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-
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- try {
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- for(Entity entity : this.active.values()) {
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- action.accept(entity);
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- }
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- } finally {
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- this.iterated = null;
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+ // Paper start - replace with better logic, do not delay removals/additions
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+ // To ensure nothing weird happens with dimension travelling, do not iterate over new entries...
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+ // (by dfl iterator() is configured to not iterate over new entries)
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+ io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet.Iterator<Entity> iterator = this.entities.iterator();
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+ try {
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+ while (iterator.hasNext()) {
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+ action.accept(iterator.next());
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}
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-
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+ } finally {
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+ iterator.finishedIterating();
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}
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+ // Paper end - replace with better logic, do not delay removals/additions
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}
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}
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