From 3e8049326274357d86f1e05f315785243963d2e6 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 deb4ec254..d2559f7c4 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -233,4 +233,14 @@ public class PaperWorldConfig {
     private void firePhysicsEventForRedstone() {
         firePhysicsEventForRedstone = getBoolean("fire-physics-event-for-redstone", firePhysicsEventForRedstone);
     }
+
+    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 182a637ad..0421f8f95 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -1289,7 +1289,7 @@ public class Chunk implements IChunkAccess {
     }
 
     public long m() {
-        return this.z;
+        return world.paperConfig.fixedInhabitedTime < 0 ? this.z : world.paperConfig.fixedInhabitedTime; // Paper
     }
 
     public void b(long i) {
-- 
2.20.1