91 lines
4.9 KiB
Diff
91 lines
4.9 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 7ebc85264a2cbfb601dfe5472b561cac1a7cf8bf..486e5438254348db68017228af131cba7defd637 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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@@ -7,6 +7,7 @@ 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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@@ -762,4 +763,18 @@ public class PaperWorldConfig {
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Difficulty.class
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);
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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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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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index f6a814f9305813eaafa56baa0327e0111cd4e38c..30f80f8549c3236d6bfe594e323e4ca6e702005d 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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@@ -539,11 +539,22 @@ public class ChunkSerializer {
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chunk.setLastSaveHadEntities(false);
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+ // Paper start
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+ final Map<EntityType<?>, Integer> savedEntityCounts = Maps.newHashMap();
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for (int j = 0; j < chunk.getEntitySlices().length; ++j) {
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Iterator iterator1 = chunk.getEntitySlices()[j].iterator();
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while (iterator1.hasNext()) {
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Entity entity = (Entity) iterator1.next();
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+ final EntityType<?> entityType = entity.getType();
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+ final int saveLimit = worldserver.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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+ continue;
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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 nbttagcompound4 = new CompoundTag();
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// Paper start
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if (asyncsavedata == null && !entity.removed && (int) Math.floor(entity.getX()) >> 4 != chunk.getPos().x || (int) Math.floor(entity.getZ()) >> 4 != chunk.getPos().z) {
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@@ -674,10 +685,21 @@ public class ChunkSerializer {
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ListTag nbttaglist = tag.getList("Entities", 10);
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Level world = chunk.getLevel();
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+ // Paper start
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+ final Map<EntityType<?>, Integer> loadedEntityCounts = Maps.newHashMap();
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for (int i = 0; i < nbttaglist.size(); ++i) {
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CompoundTag nbttagcompound1 = nbttaglist.getCompound(i);
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EntityType.loadEntityRecursive(nbttagcompound1, world, (entity) -> {
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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 (loadedEntityCounts.getOrDefault(entityType, 0) >= saveLimit) {
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+ return null;
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+ }
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+ loadedEntityCounts.merge(entityType, 1, Integer::sum);
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+ }
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+ // Paper end
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chunk.addEntity(entity);
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return entity;
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});
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