From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 10 Oct 2020 14:29:55 -0500
Subject: [PATCH] Configurable daylight cycle


diff --git a/src/main/java/net/minecraft/server/PacketPlayOutUpdateTime.java b/src/main/java/net/minecraft/server/PacketPlayOutUpdateTime.java
index 1b9b43ee696575d986c25cafec07d863acb951a7..e837db171545ceacbc84a2b360cf0d95347145d0 100644
--- a/src/main/java/net/minecraft/server/PacketPlayOutUpdateTime.java
+++ b/src/main/java/net/minecraft/server/PacketPlayOutUpdateTime.java
@@ -5,7 +5,7 @@ import java.io.IOException;
 public class PacketPlayOutUpdateTime implements Packet<PacketListenerPlayOut> {
 
     private long a; private final void setWorldAge(final long age) { this.a = age; } private final long getWorldAge() { return this.a; } // Paper - OBFHELPER
-    private long b;
+    private long b; public void setPlayerTime(long time) { this.b = time; } // Purpur
 
     public PacketPlayOutUpdateTime() {}
 
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 5508211d5922ef8072d929a5eb38c4d34f04c686..f33b3ef2bf54eba4aa29447426f744a4f42d4b53 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -94,6 +94,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
     private final EnderDragonBattle dragonBattle;
     private final StructureManager structureManager;
     private final boolean Q;
+    private double fakeTime; // Purpur
 
 
     // CraftBukkit start
@@ -485,6 +486,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
         this.getServer().addWorld(this.getWorld()); // CraftBukkit
 
         this.asyncChunkTaskManager = new com.destroystokyo.paper.io.chunk.ChunkTaskManager(this); // Paper
+        this.fakeTime = this.worldDataServer.getDayTime(); // Purpur
     }
 
     // Tuinity start - optimise collision
@@ -1091,7 +1093,21 @@ public class WorldServer extends World implements GeneratorAccessSeed {
             this.nextTickListBlock.nextTick(); // Paper
             this.nextTickListFluid.nextTick(); // Paper
             this.worldDataServer.u().a(this.server, i);
-            if (this.worldData.q().getBoolean(GameRules.DO_DAYLIGHT_CYCLE)) {
+            // Purpur start
+            WorldServer world = this.worldDataServer.world;
+            if (world.getGameRules().getBoolean(GameRules.DO_DAYLIGHT_CYCLE)) {
+                double incrementTimeBy = 12000.0D / (double) (world.isDay() ? world.purpurConfig.daytimeTicks : world.purpurConfig.nighttimeTicks);
+                if (incrementTimeBy != 1.0D) {
+                    this.fakeTime += incrementTimeBy;
+                    this.setDayTime(this.fakeTime);
+                    PacketPlayOutUpdateTime packet = new PacketPlayOutUpdateTime(world.getTime(), world.getDayTime(), true);
+                    for (EntityHuman entityhuman : world.players) {
+                        EntityPlayer player = (EntityPlayer) entityhuman;
+                        packet.setPlayerTime(player.getPlayerTime());
+                        player.playerConnection.sendPacket(packet);
+                    }
+                } else
+                // Purpur end
                 this.setDayTime(this.worldData.getDayTime() + 1L);
             }
 
@@ -1100,6 +1116,12 @@ public class WorldServer extends World implements GeneratorAccessSeed {
 
     public void setDayTime(long i) {
         this.worldDataServer.setDayTime(i);
+        // Purpur start
+        this.fakeTime = i;
+    }
+    public void setDayTime(double i) {
+        this.worldDataServer.setDayTime((long) i);
+        // Purpur end
     }
 
     public void doMobSpawning(boolean flag, boolean flag1) {
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index 95d14d82d6f8bce762ef70645f0f8eae3093914c..0b58a2e99a2f89d450d7980eb4837172e8a10dba 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -116,6 +116,13 @@ public class PurpurWorldConfig {
         }
     }
 
+    public int daytimeTicks = 12000;
+    public int nighttimeTicks = 12000;
+    private void daytimeCycleSettings() {
+        daytimeTicks = getInt("gameplay-mechanics.daylight-cycle-ticks.daytime", daytimeTicks);
+        nighttimeTicks = getInt("gameplay-mechanics.daylight-cycle-ticks.nighttime", nighttimeTicks);
+    }
+
     public int entityLifeSpan = 0;
     private void entitySettings() {
         entityLifeSpan = getInt("gameplay-mechanics.entity-lifespan", entityLifeSpan);