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/network/protocol/game/ClientboundSetTimePacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetTimePacket.java
index 689ad22925b2561f7c8db961743eb1f821dbb25f..fa3c960992cc240161817e54659d83fed259f2fe 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundSetTimePacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetTimePacket.java
@@ -5,7 +5,7 @@ import net.minecraft.network.protocol.Packet;
 
 public class ClientboundSetTimePacket implements Packet<ClientGamePacketListener> {
     private final long gameTime;
-    private final long dayTime;
+    private long dayTime; public void setDayTime(long dayTime) { this.dayTime = dayTime; } // Purpur
 
     public ClientboundSetTimePacket(long time, long timeOfDay, boolean doDaylightCycle) {
         this.gameTime = time % 192000; // Paper - fix guardian beam
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 11d5b4d1e0400e9e2baacbf9690ce1ababe85139..ce90ecb258c954146fbe7a9f393cbe29061d0e9a 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1528,7 +1528,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
             long worldTime = world.getGameTime();
             final ClientboundSetTimePacket worldPacket = new ClientboundSetTimePacket(worldTime, dayTime, doDaylight);
             for (Player entityhuman : world.players()) {
-                if (!(entityhuman instanceof ServerPlayer) || (tickCount + entityhuman.getId()) % 20 != 0) {
+                if (!(entityhuman instanceof ServerPlayer) || (!world.isForceTime() && (tickCount + entityhuman.getId()) % 20 != 0)) { // Purpur
                     continue;
                 }
                 ServerPlayer entityplayer = (ServerPlayer) entityhuman;
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index fe4909978c6b81f87a4585c8b42c1b71bf638830..5dff48719ff166990a3d5668a50d8531e59f092b 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -210,6 +210,8 @@ public class ServerLevel extends Level implements WorldGenLevel {
     private final StructureManager structureManager;
     private final StructureCheck structureCheck;
     private final boolean tickTime;
+    private double preciseTime; // Purpur
+    private boolean forceTime; // Purpur
     public long lastMidTickExecuteFailure; // Paper - execute chunk tasks mid tick
 
     // CraftBukkit start
@@ -584,6 +586,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
         this.getCraftServer().addWorld(this.getWorld()); // CraftBukkit
 
         this.asyncChunkTaskManager = new com.destroystokyo.paper.io.chunk.ChunkTaskManager(this); // Paper
+        this.preciseTime = this.serverLevelData.getDayTime(); // Purpur
     }
 
     public void setWeatherParameters(int clearDuration, int rainDuration, boolean raining, boolean thundering) {
@@ -754,6 +757,13 @@ public class ServerLevel extends Level implements WorldGenLevel {
             this.serverLevelData.setGameTime(i);
             this.serverLevelData.getScheduledEvents().tick(this.server, i);
             if (this.levelData.getGameRules().getBoolean(GameRules.RULE_DAYLIGHT)) {
+                // Purpur start
+                int incrementTicks = isDay() ? this.purpurConfig.daytimeTicks : this.purpurConfig.nighttimeTicks;
+                if (incrementTicks != 12000) {
+                    this.preciseTime += 12000 / (double) incrementTicks;
+                    this.setDayTime(this.preciseTime);
+                } else
+                // Purpur end
                 this.setDayTime(this.levelData.getDayTime() + 1L);
             }
 
@@ -762,7 +772,21 @@ public class ServerLevel extends Level implements WorldGenLevel {
 
     public void setDayTime(long timeOfDay) {
         this.serverLevelData.setDayTime(timeOfDay);
+        // Purpur start
+        this.preciseTime = timeOfDay;
+        this.forceTime = false;
     }
+    public void setDayTime(double i) {
+        this.serverLevelData.setDayTime((long) i);
+        this.forceTime = true;
+        // Purpur end
+    }
+
+    // Purpur start
+    public boolean isForceTime() {
+        return this.forceTime;
+    }
+    // Purpur end
 
     public void tickCustomSpawners(boolean spawnMonsters, boolean spawnAnimals) {
         Iterator iterator = this.customSpawners.iterator();
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index c1ac7c44868445bf5cc250ec108fd84c957434c6..47386b053f056d0dc4cd60b2ba07ecaed3b2188b 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -124,6 +124,13 @@ public class PurpurWorldConfig {
         raidCooldownSeconds = getInt("gameplay-mechanics.raid-cooldown-seconds", raidCooldownSeconds);
     }
 
+    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 elytraDamagePerSecond = 1;
     public double elytraDamageMultiplyBySpeed = 0;
     public boolean elytraIgnoreUnbreaking = false;