From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Wed, 22 Mar 2023 00:18:15 +0100
Subject: [PATCH] Variable entity wake-up duration

License: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)
Gale - https://galemc.org

diff --git a/src/main/java/org/galemc/gale/configuration/GaleWorldConfiguration.java b/src/main/java/org/galemc/gale/configuration/GaleWorldConfiguration.java
index 2f9687ad6c50cdcebc7908583b1093d1a0fa9737..b3822132cbb34dde90754aa2ee5439433ea4df4b 100644
--- a/src/main/java/org/galemc/gale/configuration/GaleWorldConfiguration.java
+++ b/src/main/java/org/galemc/gale/configuration/GaleWorldConfiguration.java
@@ -258,6 +258,23 @@ public class GaleWorldConfiguration extends ConfigurationPart {
     public GameplayMechanics gameplayMechanics;
     public class GameplayMechanics extends ConfigurationPart {
 
+        // Gale start - variable entity wake-up duration
+        /**
+         * This value is <code>σ</code> (the standard deviation) of the inactivity duration ratio,
+         * so that the regular time interval before will be multiplied by a factor <code>normal(μ = 1, σ)</code>.
+         * <br>
+         * A value of around 0.2 makes entities wake up from inactivity at more randomized times
+         * and therefore appear more natural in groups.
+         * <br>
+         * Any value < 0 behaves like 0.
+         * <ul>
+         *     <li><i>Default</i>: 0.2</li>
+         *     <li><i>Vanilla</i>: 0</li>
+         * </ul>
+         */
+        public double entityWakeUpDurationRatioStandardDeviation = 0.2;
+        // Gale end - variable entity wake-up duration
+
         public boolean tryRespawnEnderDragonAfterEndCrystalPlace = true; // Gale - Pufferfish - make ender dragon respawn attempt after placing end crystals configurable
 
     }
diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
index 0d04d7f9a9df7140cc35534a3f301f2815faed51..50cd68e40c67b83af4e8008ce93782a060658dd4 100644
--- a/src/main/java/org/spigotmc/ActivationRange.java
+++ b/src/main/java/org/spigotmc/ActivationRange.java
@@ -38,6 +38,7 @@ import co.aikar.timings.MinecraftTimings;
 import net.minecraft.world.entity.schedule.Activity;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.phys.AABB;
+import org.galemc.gale.configuration.GaleWorldConfiguration;
 
 public class ActivationRange
 {
@@ -70,28 +71,41 @@ public class ActivationRange
         if (entity.activationType == ActivationType.VILLAGER) {
             if (inactiveFor > config.wakeUpInactiveVillagersEvery && world.wakeupInactiveRemainingVillagers > 0) {
                 world.wakeupInactiveRemainingVillagers--;
-                return config.wakeUpInactiveVillagersFor;
+                return getWakeUpDurationWithVariance(entity, config.wakeUpInactiveVillagersFor); // Gale - variable entity wake-up duration
             }
         } else if (entity.activationType == ActivationType.ANIMAL) {
             if (inactiveFor > config.wakeUpInactiveAnimalsEvery && world.wakeupInactiveRemainingAnimals > 0) {
                 world.wakeupInactiveRemainingAnimals--;
-                return config.wakeUpInactiveAnimalsFor;
+                return getWakeUpDurationWithVariance(entity, config.wakeUpInactiveAnimalsFor); // Gale - variable entity wake-up duration
             }
         } else if (entity.activationType == ActivationType.FLYING_MONSTER) {
             if (inactiveFor > config.wakeUpInactiveFlyingEvery && world.wakeupInactiveRemainingFlying > 0) {
                 world.wakeupInactiveRemainingFlying--;
-                return config.wakeUpInactiveFlyingFor;
+                return getWakeUpDurationWithVariance(entity, config.wakeUpInactiveFlyingFor); // Gale - variable entity wake-up duration
             }
         } else if (entity.activationType == ActivationType.MONSTER || entity.activationType == ActivationType.RAIDER) {
             if (inactiveFor > config.wakeUpInactiveMonstersEvery && world.wakeupInactiveRemainingMonsters > 0) {
                 world.wakeupInactiveRemainingMonsters--;
-                return config.wakeUpInactiveMonstersFor;
+                return getWakeUpDurationWithVariance(entity, config.wakeUpInactiveMonstersFor); // Gale - variable entity wake-up duration
             }
         }
         return -1;
     }
     // Paper end
 
+    // Gale start - variable entity wake-up duration
+    private static final java.util.Random wakeUpDurationRandom = new java.util.Random();
+
+    private static int getWakeUpDurationWithVariance(Entity entity, int wakeUpDuration) {
+        GaleWorldConfiguration config = entity.level().galeConfig();
+        double deviation = config.gameplayMechanics.entityWakeUpDurationRatioStandardDeviation;
+        if (deviation <= 0) {
+            return wakeUpDuration;
+        }
+        return (int) Math.min(Integer.MAX_VALUE, Math.max(1, Math.round(wakeUpDuration * wakeUpDurationRandom.nextGaussian(1, deviation))));
+    }
+    // Gale end - variable entity wake-up duration
+
     static AABB maxBB = new AABB( 0, 0, 0, 0, 0, 0 );
 
     /**