geforkt von Mirrors/Paper
c5a10665b8
Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
82 Zeilen
5.3 KiB
Diff
82 Zeilen
5.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jason Penilla <11360596+jpenilla@users.noreply.github.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/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java
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index 997b05167c19472acb98edac32d4548cc65efa8e..5c7f2471a0b15ac2e714527296ad2aa7291999eb 100644
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--- a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java
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+++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java
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@@ -100,7 +100,18 @@ public final class ChunkEntitySlices {
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}
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final ListTag entitiesTag = new ListTag();
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+ final java.util.Map<net.minecraft.world.entity.EntityType<?>, Integer> savedEntityCounts = new java.util.HashMap<>(); // Paper - Entity load/save limit per chunk
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for (final Entity entity : entities) {
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+ // Paper start - Entity load/save limit per chunk
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+ final EntityType<?> entityType = entity.getType();
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+ final int saveLimit = world.paperConfig().chunks.entityPerChunkSaveLimit.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 - Entity load/save limit per chunk
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CompoundTag compoundTag = new CompoundTag();
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if (entity.save(compoundTag)) {
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entitiesTag.add(compoundTag);
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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 842b0cec0397d7ae5166617627340ffac0e35db1..cb61462d4691a055a4b25f7b953609d8a154fdfe 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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@@ -649,9 +649,20 @@ public class EntityType<T extends Entity> implements FeatureElement, EntityTypeT
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final Spliterator<? extends Tag> spliterator = entityNbtList.spliterator();
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return StreamSupport.stream(new Spliterator<Entity>() {
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+ final java.util.Map<EntityType<?>, Integer> loadedEntityCounts = new java.util.HashMap<>(); // Paper - Entity load/save limit per chunk
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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 - Entity load/save limit per chunk
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+ final EntityType<?> entityType = entity.getType();
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+ final int saveLimit = world.paperConfig().chunks.entityPerChunkSaveLimit.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 - Entity load/save limit per chunk
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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 503ac0374e0c9f9993ad37bb8bd8cf1570d3615a..d4a505ef4af9ded02aeb1a817bcbe5b1a912a5b3 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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@@ -92,7 +92,18 @@ public class EntityStorage implements EntityPersistentStorage<Entity> {
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}
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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 - Entity load/save limit per chunk
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dataList.getEntities().forEach(entity -> {
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+ // Paper start - Entity load/save limit per chunk
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+ final EntityType<?> entityType = entity.getType();
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+ final int saveLimit = this.level.paperConfig().chunks.entityPerChunkSaveLimit.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 - Entity load/save limit per chunk
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CompoundTag compoundTagx = new CompoundTag();
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if (entity.save(compoundTagx)) {
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listTag.add(compoundTagx);
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