Add rule spawnLeaderZombieProbably

Author: Fallen-Breath

src/main/java/carpettisaddition/CarpetTISAdditionSettings.java

@@ -657,6 +657,14 @@ public ValidateNetherPortalMaxSize()
 	)
 	public static double spawnJockeyProbably = -1;
 
+	@Rule(
+			categories = {TIS, CREATIVE},
+			validators = OptionalProbablyValidator.class,
+			options = {"-1", "0", "0.5", "1"},
+			strict = false
+	)
+	public static double spawnLeaderZombieProbably = -1;
+
 	@Rule(
 			options = {"10", "100", "1024", "10240"},
 			strict = false,

src/main/java/carpettisaddition/helpers/rule/spawnLeaderZombieProbably/SpawnLeaderZombieProbablyHelper.java

@@ -0,0 +1,50 @@
+/*
+ * This file is part of the Carpet TIS Addition project, licensed under the
+ * GNU Lesser General Public License v3.0
+ *
+ * Copyright (C) 2026  Fallen_Breath and contributors
+ *
+ * Carpet TIS Addition is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Carpet TIS Addition is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Carpet TIS Addition.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package carpettisaddition.helpers.rule.spawnLeaderZombieProbably;
+
+import carpettisaddition.CarpetTISAdditionSettings;
+
+import java.util.Random;
+
+public class SpawnLeaderZombieProbablyHelper
+{
+	public static final Random RANDOM = new Random();
+
+	public static boolean isEnabled()
+	{
+		return CarpetTISAdditionSettings.spawnLeaderZombieProbably >= 0;
+	}
+
+	public static boolean shouldSpawnLeader()
+	{
+		double p = CarpetTISAdditionSettings.spawnLeaderZombieProbably;
+		return p > 0 && RANDOM.nextFloat() <= p;
+	}
+
+	public static float tweak(float originalValue, float leaderValue, float notLeaderValue)
+	{
+		if (isEnabled())
+		{
+			return shouldSpawnLeader() ? leaderValue : notLeaderValue;
+		}
+		return originalValue;
+	}
+}

src/main/java/carpettisaddition/mixins/rule/spawnLeaderZombieProbably/ZombieMixin.java

@@ -0,0 +1,56 @@
+/*
+ * This file is part of the Carpet TIS Addition project, licensed under the
+ * GNU Lesser General Public License v3.0
+ *
+ * Copyright (C) 2026  Fallen_Breath and contributors
+ *
+ * Carpet TIS Addition is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Carpet TIS Addition is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Carpet TIS Addition.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package carpettisaddition.mixins.rule.spawnLeaderZombieProbably;
+
+import carpettisaddition.helpers.rule.spawnLeaderZombieProbably.SpawnLeaderZombieProbablyHelper;
+import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+import net.minecraft.world.entity.monster.Zombie;
+import org.objectweb.asm.Opcodes;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Slice;
+
+@Mixin(Zombie.class)
+public abstract class ZombieMixin
+{
+	@ModifyExpressionValue(
+			method = "handleAttributes",
+			slice = @Slice(
+					from = @At(
+							value = "FIELD",
+							target = "Lnet/minecraft/world/entity/monster/SharedMonsterAttributes;FOLLOW_RANGE:Lnet/minecraft/world/entity/ai/attributes/Attribute;",
+							opcode = Opcodes.GETSTATIC
+					)
+			),
+			at = @At(
+					value = "INVOKE",
+					//#if MC >= 11900
+					//$$ target = "Lnet/minecraft/util/RandomSource;nextFloat()F"
+					//#else
+					target = "Ljava/util/Random;nextFloat()F"
+					//#endif
+			)
+	)
+	private float spawnLeaderZombieProbably_tweak(float original)
+	{
+		return SpawnLeaderZombieProbablyHelper.tweak(original, -0.1f, Float.MAX_VALUE);
+	}
+}

src/main/resources/assets/carpettisaddition/lang/en_us.yml

@@ -1424,6 +1424,12 @@ carpettisaddition:
           '0': 'Affected jockeys: chicken jockey, spider jockey, strider jockey'
           '1': 'For striders, the spawn ratio between zombified piglin and baby strider is still 1:3'
           '2': Set it to -1 to disable the rule and use vanilla logic
+      spawnLeaderZombieProbably:
+        name: spawnLeaderZombieProbably
+        desc: When spawning zombies, override the probability of spawning a leader zombie
+        extra:
+          '0': A leader zombie can call for reinforcements, has higher max health, and can break doors
+          '1': Set it to -1 to disable the rule and use vanilla logic
       speedTestCommandMaxTestSize:
         name: speedTestCommandMaxTestSize
         desc: The max test size in MiB when using the /speedtest command for network speed test

src/main/resources/assets/carpettisaddition/lang/zh_cn.yml

@@ -1424,6 +1424,12 @@ carpettisaddition:
           '0': '影响的骑手类型: 鸡骑士、蜘蛛骑士、炽足兽骑手'
           '1': '对于炽足兽，生成僵尸猪灵、幼年炽足兽的概率比将保持1:3'
           '2': 将其设为-1以禁用本规则并使用原版逻辑
+      spawnLeaderZombieProbably:
+        name: 生成领头僵尸概率
+        desc: 调整刷怪时生成领头僵尸的概率
+        extra:
+          '0': 领头僵尸是那种能召唤援军、血量上限更高且能拆门的僵尸
+          '1': 将其设为-1以禁用本规则并使用原版逻辑
       speedTestCommandMaxTestSize:
         name: 测速指令最大测试大小
         desc: 在使用/speedtest测速指令进行网络速度测试时，最大的测试数据大小，单位MiB

src/main/resources/carpet-tis-addition.mixins.json

@@ -488,6 +488,7 @@
     "rule.spawnJockeyProbably.SpiderEntityMixin",
     "rule.spawnJockeyProbably.StriderEntityMixin",
     "rule.spawnJockeyProbably.ZombieEntityMixin",
+    "rule.spawnLeaderZombieProbably.ZombieMixin",
     "rule.structureBlockDoNotPreserveFluid.StructureBlockBlockEntityMixin",
     "rule.structureBlockDoNotPreserveFluid.StructurePlacementDataAccessor",
     "rule.structureBlockLimit.StructureBlockBlockEntityMixin",

website/docs/rules.md

@@ -1486,6 +1486,20 @@ Set it to `-1` to disable the rule and use vanilla logic
 - Categories: `TIS`, `CREATIVE`
 
 
+## spawnLeaderZombieProbably
+
+When spawning zombies, override the probability of spawning a leader zombie
+
+A leader zombie can call for reinforcements, has higher max health, and can break doors
+
+Set it to `-1` to disable the rule and use vanilla logic
+
+- Type: `double`
+- Default value: `-1`
+- Suggested options: `-1`, `0`, `0.5`, `1`
+- Categories: `TIS`, `CREATIVE`
+
+
 ## speedTestCommandMaxTestSize
 
 The max test size in MiB when using the `/speedtest` command for network speed test

website/i18n/zh-Hans/docusaurus-plugin-content-docs/current/rules.md

@@ -1486,6 +1486,20 @@ sidebar_position: 1
 - 分类: `TIS`, `CREATIVE`
 
 
+## 生成领头僵尸概率 (spawnLeaderZombieProbably)
+
+调整刷怪时生成领头僵尸的概率
+
+领头僵尸是那种能召唤援军、血量上限更高且能拆门的僵尸
+
+将其设为 `-1` 以禁用本规则并使用原版逻辑
+
+- 类型: `double`
+- 默认值: `-1`
+- 参考选项: `-1`, `0`, `0.5`, `1`
+- 分类: `TIS`, `CREATIVE`
+
+
 ## 测速指令最大测试大小 (speedTestCommandMaxTestSize)
 
 在使用 `/speedtest` 测速指令进行网络速度测试时，最大的测试数据大小，单位 MiB