From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Aikar Date: Sun, 24 Mar 2019 01:01:32 -0400 Subject: [PATCH] Only count Natural Spawned mobs towards natural spawn mob limit This resolves the super common complaint about mobs not spawning. This was ultimately a flaw in the vanilla count algorithim that allows spawners and other misc mobs to count against the mob limit, which are not bounded, and can prevent the entire world from spawning new. I believe Bukkits changes around persistence may of actually made it worse than vanilla. This should fully solve all of the issues around it so that only natural influences natural spawns. diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java index 321dedb7bea65c85aaeac338b88e85c6d453325d..98f81bc3277096493ff0a942361bf79525000431 100644 --- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java +++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java @@ -463,4 +463,15 @@ public class PaperWorldConfig { private void preventMovingIntoUnloadedChunks() { preventMovingIntoUnloadedChunks = getBoolean("prevent-moving-into-unloaded-chunks", false); } + + public boolean countAllMobsForSpawning = false; + private void countAllMobsForSpawning() { + countAllMobsForSpawning = getBoolean("count-all-mobs-for-spawning", false); + if (countAllMobsForSpawning) { + log("Counting all mobs for spawning. Mob farms may reduce natural spawns elsewhere in world."); + } else { + log("Using improved mob spawn limits (Only Natural Spawns impact spawn limits for more natural spawns)"); + } + } } + diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java index 31b330e140d71d9b017e68eab531a59d4f2ed9a2..fedc36ceebaf3e1d267431bdf7db81e25f4d6fd7 100644 --- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java +++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java @@ -87,6 +87,13 @@ public final class NaturalSpawner { MobCategory enumcreaturetype = entity.getType().getCategory(); if (enumcreaturetype != MobCategory.MISC) { + // Paper start - Only count natural spawns + if (!entity.level.paperConfig.countAllMobsForSpawning && + !(entity.spawnReason == org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL || + entity.spawnReason == org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.CHUNK_GEN)) { + continue; + } + // Paper end BlockPos blockposition = entity.blockPosition(); chunkSource.query(ChunkPos.asLong(blockposition), (chunk) -> {