97 lines
5.5 KiB
Diff
97 lines
5.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: jmp <jasonpenilla2@me.com>
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Date: Wed, 18 Nov 2020 20:52:25 -0800
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Subject: [PATCH] Entity load/save limit per chunk
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Adds a config option to limit the number of entities saved and loaded
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to a chunk. The default values of -1 disable the limit. Although
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defaults are only included for certain entites, this allows setting
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limits for any entity type.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index 79687b8add9e4768d2c9aa1efdad7cc9736ef22c..54c74b8d3056e512b4a8c1760c45a33ab7a6f4a9 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -1,9 +1,12 @@
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package com.destroystokyo.paper;
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import java.util.Arrays;
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+import java.util.HashMap;
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import java.util.List;
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+import java.util.Map;
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import java.util.stream.Collectors;
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import net.minecraft.world.Difficulty;
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+import net.minecraft.world.entity.EntityType;
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import net.minecraft.world.entity.monster.Vindicator;
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import net.minecraft.world.entity.monster.Zombie;
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import com.destroystokyo.paper.antixray.ChunkPacketBlockControllerAntiXray.EngineMode;
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@@ -123,6 +126,20 @@ public class PaperWorldConfig {
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);
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}
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+ public Map<EntityType<?>, Integer> entityPerChunkSaveLimits = new HashMap<>();
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+ private void entityPerChunkSaveLimits() {
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+ getInt("entity-per-chunk-save-limit.experience_orb", -1);
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+ getInt("entity-per-chunk-save-limit.snowball", -1);
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+ getInt("entity-per-chunk-save-limit.ender_pearl", -1);
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+ getInt("entity-per-chunk-save-limit.arrow", -1);
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+ EntityType.getEntityNameList().forEach(name -> {
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+ final EntityType<?> type = EntityType.getByName(name.getPath()).orElseThrow(() -> new IllegalStateException("Unknown Entity Type: " + name.toString()));
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+ final String path = ".entity-per-chunk-save-limit." + name.getPath();
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+ final int value = config.getInt("world-settings." + worldName + path, config.getInt("world-settings.default" + path, -1)); // get without setting defaults
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+ if (value != -1) entityPerChunkSaveLimits.put(type, value);
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+ });
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+ }
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+
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public short keepLoadedRange;
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private void keepLoadedRange() {
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keepLoadedRange = (short) (getInt("keep-spawn-loaded-range", Math.min(spigotConfig.viewDistance, 10)) * 16);
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diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java
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index 536d979139326191d1199e93e9fc885164766aec..c7f50d45b3a0a238e41e5a024cd4dec08e07c8b4 100644
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--- a/src/main/java/net/minecraft/world/entity/EntityType.java
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+++ b/src/main/java/net/minecraft/world/entity/EntityType.java
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@@ -561,9 +561,20 @@ public class EntityType<T extends Entity> implements EntityTypeTest<Entity, T> {
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final Spliterator<? extends net.minecraft.nbt.Tag> spliterator = entityNbtList.spliterator();
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return StreamSupport.stream(new Spliterator<Entity>() {
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+ final Map<EntityType<?>, Integer> loadedEntityCounts = new java.util.HashMap<>(); // Paper
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public boolean tryAdvance(Consumer<? super Entity> consumer) {
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return spliterator.tryAdvance((nbtbase) -> {
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EntityType.loadEntityRecursive((CompoundTag) nbtbase, world, (entity) -> {
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+ // Paper start
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+ final EntityType<?> entityType = entity.getType();
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+ final int saveLimit = world.paperConfig.entityPerChunkSaveLimits.getOrDefault(entityType, -1);
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+ if (saveLimit > -1) {
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+ if (this.loadedEntityCounts.getOrDefault(entityType, 0) >= saveLimit) {
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+ return null;
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+ }
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+ this.loadedEntityCounts.merge(entityType, 1, Integer::sum);
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+ }
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+ // Paper end
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consumer.accept(entity);
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return entity;
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});
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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
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index 6204c6c9cf2cb620e41105889807f85438bd006c..572a013445bd83d366cce27d0e015ba8271df7e0 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java
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@@ -89,7 +89,18 @@ public class EntityStorage implements EntityPersistentStorage<Entity> {
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} else {
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ListTag listTag = new ListTag();
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+ final java.util.Map<net.minecraft.world.entity.EntityType<?>, Integer> savedEntityCounts = new java.util.HashMap<>(); // Paper
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dataList.getEntities().forEach((entity) -> {
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+ // Paper start
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+ final EntityType<?> entityType = entity.getType();
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+ final int saveLimit = this.level.paperConfig.entityPerChunkSaveLimits.getOrDefault(entityType, -1);
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+ if (saveLimit > -1) {
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+ if (savedEntityCounts.getOrDefault(entityType, 0) >= saveLimit) {
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+ return;
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+ }
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+ savedEntityCounts.merge(entityType, 1, Integer::sum);
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+ }
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+ // Paper end
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CompoundTag compoundTag = new CompoundTag();
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if (entity.save(compoundTag)) {
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listTag.add(compoundTag);
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