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Originally vanilla logic is to use stream, and Mojang switched it to Guava's Collections2 since 1.21.4. It is much faster than using stream or manually adding to a new ArrayList. Manually adding to a new ArrayList requires allocating a new object array. However, the Collections2 lazy handles filter condition on iteration, so much better.
29 lines
1.6 KiB
Diff
29 lines
1.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: hayanesuru <hayanesuru@outlook.jp>
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Date: Wed, 4 Jun 2025 20:54:03 +0900
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Subject: [PATCH] throttle mob spawning
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diff --git a/net/minecraft/world/level/NaturalSpawner.java b/net/minecraft/world/level/NaturalSpawner.java
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index f0b78c6d89cd3010a0b8e9fbe760f615d7b8771e..3a54fa25bf491902235392168a00c17378e01c0d 100644
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--- a/net/minecraft/world/level/NaturalSpawner.java
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+++ b/net/minecraft/world/level/NaturalSpawner.java
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@@ -217,6 +217,17 @@ public final class NaturalSpawner {
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// Paper start - Optional per player mob spawns
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final boolean canSpawn;
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int maxSpawns = Integer.MAX_VALUE;
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+ // Leaf start - throttle mob spawning
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+ if (org.dreeam.leaf.config.modules.opt.ThrottleNaturalMobSpawning.enabled) {
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+ int spawnChance = org.dreeam.leaf.config.modules.opt.ThrottleNaturalMobSpawning.spawnChance[mobCategory.ordinal()];
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+ long failedAttempt = org.dreeam.leaf.config.modules.opt.ThrottleNaturalMobSpawning.failedAttempts[mobCategory.ordinal()];
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+ if (failedAttempt >= 0L
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+ && chunk.failedSpawnAttempts[mobCategory.ordinal()] >= failedAttempt
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+ && (level.random.nextInt() & Integer.MAX_VALUE) >= spawnChance) {
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+ continue;
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+ }
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+ }
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+ // Leaf end - throttle mob spawning
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if (level.paperConfig().entities.spawning.perPlayerMobSpawns) {
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// Copied from getFilteredSpawningCategories
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int limit = mobCategory.getMaxInstancesPerChunk();
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