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Paper-Old/Spigot-Server-Patches/0363-Only-count-Natural-Spawned-mobs-towards-natural-spaw.patch
2021-01-03 17:23:10 +01:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
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 b10910beaff893bc722c83f472da847a0eab2a04..55915bca7e97ff224ad246c153fad2ac37f48a24 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -462,6 +462,16 @@ public class PaperWorldConfig {
maxAutoSaveChunksPerTick = getInt("max-auto-save-chunks-per-tick", 24);
}
+ 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)");
+ }
+ }
+
public boolean antiXray;
public EngineMode engineMode;
public int maxChunkSectionIndex;
diff --git a/src/main/java/net/minecraft/server/SpawnerCreature.java b/src/main/java/net/minecraft/server/SpawnerCreature.java
index 60f0301747ff2363007791432471c20471d79f01..979988c3c39afd80ce0b99a65dff5618a69ab600 100644
--- a/src/main/java/net/minecraft/server/SpawnerCreature.java
+++ b/src/main/java/net/minecraft/server/SpawnerCreature.java
@@ -48,6 +48,13 @@ public final class SpawnerCreature {
EnumCreatureType enumcreaturetype = entity.getEntityType().e();
if (enumcreaturetype != EnumCreatureType.MISC) {
+ // Paper start - Only count natural spawns
+ if (!entity.world.paperConfig.countAllMobsForSpawning &&
+ !(entity.spawnReason == org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL ||
+ entity.spawnReason == org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.CHUNK_GEN)) {
+ continue;
+ }
+ // Paper end
BlockPosition blockposition = entity.getChunkCoordinates();
long j = ChunkCoordIntPair.pair(blockposition.getX() >> 4, blockposition.getZ() >> 4);