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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.
37 Zeilen
1.8 KiB
Diff
37 Zeilen
1.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 24 Mar 2019 01:01:32 -0400
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Subject: [PATCH] Only count Natural Spawned mobs towards natural spawn mob
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limit
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This resolves the super common complaint about mobs not spawning.
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This was ultimately a flaw in the vanilla count algorithim that allows
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spawners and other misc mobs to count against the mob limit, which are
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not bounded, and can prevent the entire world from spawning new.
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I believe Bukkits changes around persistence may of actually made it
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worse than vanilla.
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This should fully solve all of the issues around it so that only natural
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influences natural spawns.
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diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
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index 41eef8bfd1572aecaf086bfbec300abeae2df794..58ea6a1f95a09c22125a8262b1b221004ebce0e4 100644
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--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
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+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
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@@ -83,6 +83,13 @@ public final class NaturalSpawner {
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MobCategory enumcreaturetype = entity.getType().getCategory();
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if (enumcreaturetype != MobCategory.MISC) {
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+ // Paper start - Only count natural spawns
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+ if (!entity.level().paperConfig().entities.spawning.countAllMobsForSpawning &&
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+ !(entity.spawnReason == org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL ||
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+ entity.spawnReason == org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.CHUNK_GEN)) {
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+ continue;
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+ }
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+ // Paper end - Only count natural spawns
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BlockPos blockposition = entity.blockPosition();
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chunkSource.query(ChunkPos.asLong(blockposition), (chunk) -> {
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