Paper/patches/server/0610-Entity-load-save-limit-per-chunk.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
2021-06-17 11:37:24 +02:00
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Wed, 18 Nov 2020 20:52:25 -0800
Subject: [PATCH] Entity load/save limit per chunk
Adds a config option to limit the number of entities saved and loaded
to a chunk. The default values of -1 disable the limit. Although
defaults are only included for certain entites, this allows setting
limits for any entity type.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
2022-06-07 19:03:07 +02:00
index 883c8d42c471eefe4ddf68196fac0d69428dbabd..ba95a27012bcba97d6e7f6a07d68a476c0beb96f 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
2021-11-29 12:55:13 +01:00
@@ -8,6 +8,8 @@ import it.unimi.dsi.fastutil.objects.Reference2IntMap;
import it.unimi.dsi.fastutil.objects.Reference2IntOpenHashMap;
import net.minecraft.world.entity.MobCategory;
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import com.destroystokyo.paper.antixray.ChunkPacketBlockControllerAntiXray.EngineMode;
+import java.util.HashMap;
+import java.util.Map;
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import org.bukkit.Bukkit;
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import org.bukkit.configuration.file.YamlConfiguration;
import org.spigotmc.SpigotWorldConfig;
@@ -176,6 +178,38 @@ public class PaperWorldConfig {
}
}
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+ public Map<net.minecraft.world.entity.EntityType<?>, Integer> entityPerChunkSaveLimits = new HashMap<>();
+ private void entityPerChunkSaveLimits() {
+ getInt("entity-per-chunk-save-limit.experience_orb", -1);
+ getInt("entity-per-chunk-save-limit.snowball", -1);
+ getInt("entity-per-chunk-save-limit.ender_pearl", -1);
+ getInt("entity-per-chunk-save-limit.arrow", -1);
+ getInt("entity-per-chunk-save-limit.fireball", -1);
+ getInt("entity-per-chunk-save-limit.small_fireball", -1);
+
+ addEntityPerChunkSaveLimitsFromSection(config.getConfigurationSection("world-settings.default.entity-per-chunk-save-limit"), entityPerChunkSaveLimits);
+ addEntityPerChunkSaveLimitsFromSection(config.getConfigurationSection("world-settings." + worldName + ".entity-per-chunk-save-limit"), entityPerChunkSaveLimits);
+ }
+
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+ private static void addEntityPerChunkSaveLimitsFromSection(final org.bukkit.configuration.ConfigurationSection section, final Map<net.minecraft.world.entity.EntityType<?>, Integer> limitMap) {
+ if (section == null) {
+ return;
+ }
+ for (final String key : section.getKeys(false)) {
+ final int value = section.getInt(key);
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+ final net.minecraft.world.entity.EntityType<?> type = net.minecraft.world.entity.EntityType.byString(key).orElse(null);
+ if (type == null) {
+ logError("Invalid entity-per-chunk-save-limit config, '" + key+ "' is not a valid entity type. Correct this in paper.yml.");
+ continue;
+ }
+ if (value >= 0) {
+ limitMap.put(type, value);
+ } else {
+ limitMap.remove(type);
+ }
+ }
+ }
+
public short keepLoadedRange;
private void keepLoadedRange() {
keepLoadedRange = (short) (getInt("keep-spawn-loaded-range", Math.min(spigotConfig.viewDistance, 10)) * 16);
diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java
2022-06-08 09:40:34 +02:00
index 93f9d3035f42ad5d7d5bac924728b731b7de04e6..b3a769bd144f948b4782bf47a7d37c45b52deab0 100644
--- a/src/main/java/net/minecraft/world/entity/EntityType.java
+++ b/src/main/java/net/minecraft/world/entity/EntityType.java
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@@ -563,9 +563,20 @@ public class EntityType<T extends Entity> implements EntityTypeTest<Entity, T> {
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final Spliterator<? extends Tag> spliterator = entityNbtList.spliterator();
return StreamSupport.stream(new Spliterator<Entity>() {
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+ final java.util.Map<EntityType<?>, Integer> loadedEntityCounts = new java.util.HashMap<>(); // Paper
public boolean tryAdvance(Consumer<? super Entity> consumer) {
return spliterator.tryAdvance((nbtbase) -> {
EntityType.loadEntityRecursive((CompoundTag) nbtbase, world, (entity) -> {
+ // Paper start
+ final EntityType<?> entityType = entity.getType();
+ final int saveLimit = world.paperConfig.entityPerChunkSaveLimits.getOrDefault(entityType, -1);
+ if (saveLimit > -1) {
+ if (this.loadedEntityCounts.getOrDefault(entityType, 0) >= saveLimit) {
+ return null;
+ }
+ this.loadedEntityCounts.merge(entityType, 1, Integer::sum);
+ }
+ // Paper end
consumer.accept(entity);
return entity;
});
diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java
2022-06-08 09:40:34 +02:00
index dae66dd5dbebc7fd8fc331b1f5f06ec461667830..6408eeb7434f07c30b5e9207ab5f905a593fec79 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java
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@@ -90,7 +90,18 @@ public class EntityStorage implements EntityPersistentStorage<Entity> {
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} else {
ListTag listTag = new ListTag();
+ final java.util.Map<net.minecraft.world.entity.EntityType<?>, Integer> savedEntityCounts = new java.util.HashMap<>(); // Paper
dataList.getEntities().forEach((entity) -> {
+ // Paper start
+ final EntityType<?> entityType = entity.getType();
+ final int saveLimit = this.level.paperConfig.entityPerChunkSaveLimits.getOrDefault(entityType, -1);
+ if (saveLimit > -1) {
+ if (savedEntityCounts.getOrDefault(entityType, 0) >= saveLimit) {
+ return;
+ }
+ savedEntityCounts.merge(entityType, 1, Integer::sum);
+ }
+ // Paper end
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CompoundTag compoundTag = new CompoundTag();
if (entity.save(compoundTag)) {
listTag.add(compoundTag);