91 lines
4.8 KiB
Diff
91 lines
4.8 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 c5495e02c3fe271b26f62ea2ec64e07957edf37e..234d2daecc5d0bf6a99c0a5f4a87f947a15029d9 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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@@ -11,6 +11,7 @@ import com.destroystokyo.paper.antixray.ChunkPacketBlockControllerAntiXray.Engin
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import net.minecraft.server.EntityVindicator;
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import net.minecraft.server.EntityZombie;
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import net.minecraft.server.EnumDifficulty;
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+import net.minecraft.server.EntityTypes;
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import org.bukkit.Bukkit;
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import org.bukkit.Material;
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import org.bukkit.configuration.ConfigurationSection;
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@@ -761,4 +762,18 @@ public class PaperWorldConfig {
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EnumDifficulty.class
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);
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}
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+
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+ public Map<EntityTypes<?>, 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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+ EntityTypes.getEntityNameList().forEach(name -> {
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+ final EntityTypes<?> type = EntityTypes.getByName(name.getKey()).orElseThrow(() -> new IllegalStateException("Unknown Entity Type: " + name.toString()));
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+ final String path = ".entity-per-chunk-save-limit." + name.getKey();
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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/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
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index 8e7da2c5f3852920ec5fbcdd2bff4d299e6aa499..f51bf71c8d6eef3c054ac64765709794fcfad5ee 100644
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--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
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+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
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@@ -495,11 +495,22 @@ public class ChunkRegionLoader {
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chunk.d(false);
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+ // Paper start
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+ final Map<EntityTypes<?>, 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 EntityTypes<?> entityType = entity.getEntityType();
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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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NBTTagCompound nbttagcompound4 = new NBTTagCompound();
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// Paper start
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if (asyncsavedata == null && !entity.dead && (int) Math.floor(entity.locX()) >> 4 != chunk.getPos().x || (int) Math.floor(entity.locZ()) >> 4 != chunk.getPos().z) {
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@@ -630,10 +641,21 @@ public class ChunkRegionLoader {
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NBTTagList nbttaglist = nbttagcompound.getList("Entities", 10);
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World world = chunk.getWorld();
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+ // Paper start
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+ final Map<EntityTypes<?>, Integer> loadedEntityCounts = Maps.newHashMap();
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for (int i = 0; i < nbttaglist.size(); ++i) {
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NBTTagCompound nbttagcompound1 = nbttaglist.getCompound(i);
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EntityTypes.a(nbttagcompound1, world, (entity) -> {
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+ final EntityTypes<?> entityType = entity.getEntityType();
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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.a(entity);
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return entity;
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});
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