From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 28 Mar 2016 20:46:14 -0400
Subject: [PATCH] Configurable Chunk Inhabited Time

Vanilla stores how long a chunk has been active on a server, and dynamically scales some
aspects of vanilla gameplay to this factor.

For people who want all chunks to be treated equally, you can chose a fixed value.

This allows to fine-tune vanilla gameplay.

diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index aa8cd5965632626e4cbd4952acf9b349f79b2b1c..e7534ed3f995be64c99399ab76e98086cf37bb7f 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -284,4 +284,14 @@ public class PaperWorldConfig {
             skeleHorseSpawnChance = 0.01D; // Vanilla value
         }
     }
+
+    public int fixedInhabitedTime;
+    private void fixedInhabitedTime() {
+        if (PaperConfig.version < 16) {
+            if (!config.getBoolean("world-settings.default.use-chunk-inhabited-timer", true)) config.set("world-settings.default.fixed-chunk-inhabited-time", 0);
+            if (!config.getBoolean("world-settings." + worldName + ".use-chunk-inhabited-timer", true)) config.set("world-settings." + worldName + ".fixed-chunk-inhabited-time", 0);
+            set("use-chunk-inhabited-timer", null);
+        }
+        fixedInhabitedTime = getInt("fixed-chunk-inhabited-time", -1);
+    }
 }
diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
index 051ca5ac3bb9f66e921eaf49b1ee16b93b7daaa2..a9a14062a94b18b553a10b30de0cda7354ae4b7d 100644
--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
@@ -282,6 +282,13 @@ public class LevelChunk extends ChunkAccess {
         return new ChunkAccess.TicksToSave(this.blockTicks, this.fluidTicks);
     }
 
+    // Paper start
+    @Override
+    public long getInhabitedTime() {
+        return this.level.paperConfig.fixedInhabitedTime < 0 ? super.getInhabitedTime() : this.level.paperConfig.fixedInhabitedTime;
+    }
+    // Paper end
+
     @Override
     public GameEventDispatcher getEventDispatcher(int ySectionCoord) {
         return (GameEventDispatcher) this.gameEventDispatcherSections.computeIfAbsent(ySectionCoord, (j) -> {