PaperMC/patches/server/0763-Allow-removal-addition-of-entities-to-entity-ticklis.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2d760831 Increase outdated build delay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

89 lines
4.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 19 Jun 2021 22:47:17 -0700
Subject: [PATCH] Allow removal/addition of entities to entity ticklist during
tick
It really doesn't make any sense that we would iterate over removed
entities during tick. Sure - tick entity checks removed, but
does it check if the entity is in an entity ticking chunk?
No it doesn't. So, allowing removal while iteration
ENSURES only entities MARKED TO TICK are ticked.
diff --git a/src/main/java/net/minecraft/world/level/entity/EntityTickList.java b/src/main/java/net/minecraft/world/level/entity/EntityTickList.java
index b27c8db914cca3ff0ea8a24acddb9cb9870ce21d..4814e719e0b898464692075170889fdb2729a26a 100644
--- a/src/main/java/net/minecraft/world/level/entity/EntityTickList.java
+++ b/src/main/java/net/minecraft/world/level/entity/EntityTickList.java
@@ -9,57 +9,42 @@ import javax.annotation.Nullable;
import net.minecraft.world.entity.Entity;
public class EntityTickList {
- private Int2ObjectMap<Entity> active = new Int2ObjectLinkedOpenHashMap<>();
- private Int2ObjectMap<Entity> passive = new Int2ObjectLinkedOpenHashMap<>();
- @Nullable
- private Int2ObjectMap<Entity> iterated;
+ 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?
private void ensureActiveIsNotIterated() {
- if (this.iterated == this.active) {
- this.passive.clear();
-
- for(Entry<Entity> entry : Int2ObjectMaps.fastIterable(this.active)) {
- this.passive.put(entry.getIntKey(), entry.getValue());
- }
-
- Int2ObjectMap<Entity> int2ObjectMap = this.active;
- this.active = this.passive;
- this.passive = int2ObjectMap;
- }
+ // Paper - replace with better logic, do not delay removals
}
public void add(Entity entity) {
io.papermc.paper.util.TickThread.ensureTickThread("Asynchronous entity ticklist addition"); // Paper
this.ensureActiveIsNotIterated();
- this.active.put(entity.getId(), entity);
+ this.entities.add(entity); // Paper - replace with better logic, do not delay removals/additions
}
public void remove(Entity entity) {
io.papermc.paper.util.TickThread.ensureTickThread("Asynchronous entity ticklist removal"); // Paper
this.ensureActiveIsNotIterated();
- this.active.remove(entity.getId());
+ this.entities.remove(entity); // Paper - replace with better logic, do not delay removals/additions
}
public boolean contains(Entity entity) {
- return this.active.containsKey(entity.getId());
+ return this.entities.contains(entity); // Paper - replace with better logic, do not delay removals/additions
}
public void forEach(Consumer<Entity> action) {
io.papermc.paper.util.TickThread.ensureTickThread("Asynchronous entity ticklist iteration"); // Paper
- if (this.iterated != null) {
- throw new UnsupportedOperationException("Only one concurrent iteration supported");
- } else {
- this.iterated = this.active;
-
- try {
- for(Entity entity : this.active.values()) {
- action.accept(entity);
- }
- } finally {
- this.iterated = null;
+ // Paper start - replace with better logic, do not delay removals/additions
+ // To ensure nothing weird happens with dimension travelling, do not iterate over new entries...
+ // (by dfl iterator() is configured to not iterate over new entries)
+ io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet.Iterator<Entity> iterator = this.entities.iterator();
+ try {
+ while (iterator.hasNext()) {
+ action.accept(iterator.next());
}
-
+ } finally {
+ iterator.finishedIterating();
}
+ // Paper end - replace with better logic, do not delay removals/additions
}
}