From 1717a3b6afb19fd2580234c2c1d5f0645740e96b 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 b910b648f..4afd7553d 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -234,4 +234,14 @@ 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/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 2dbfca3f0..85e17253d 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -839,7 +839,7 @@ public class Chunk implements IChunkAccess {
 
     @Override
     public long q() {
-        return this.t;
+        return world.paperConfig.fixedInhabitedTime < 0 ? this.t : world.paperConfig.fixedInhabitedTime; // Paper
     }
 
     @Override
-- 
2.23.0