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/net/minecraft/server/MinecraftServer.java b/net/minecraft/server/MinecraftServer.java
index 75ef1a4f80449e87affbd9ba62f5f9447ef9db87..d55390d725f8798becb0b7b04485c99611e0e527 100644
--- a/net/minecraft/server/MinecraftServer.java
+++ b/net/minecraft/server/MinecraftServer.java
@@ -1858,7 +1858,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
             long worldTime = level.getGameTime();
             final ClientboundSetTimePacket worldPacket = new ClientboundSetTimePacket(worldTime, dayTime, doDaylight);
             for (Player entityhuman : level.players()) {
-                if (!(entityhuman instanceof ServerPlayer) || (tickCount + entityhuman.getId()) % 20 != 0) {
+                if (!(entityhuman instanceof ServerPlayer) || (!level.isForceTime() && (tickCount + entityhuman.getId()) % 20 != 0)) { // Purpur - Configurable daylight cycle
                     continue;
                 }
                 ServerPlayer entityplayer = (ServerPlayer) entityhuman;
diff --git a/net/minecraft/server/level/ServerLevel.java b/net/minecraft/server/level/ServerLevel.java
index 3442ace00904b73f4384760d42c9385697132bc9..6585e0d72b2fbb8af5c62ceba57eef2fb7794e87 100644
--- a/net/minecraft/server/level/ServerLevel.java
+++ b/net/minecraft/server/level/ServerLevel.java
@@ -224,6 +224,8 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
     private final StructureManager structureManager;
     private final StructureCheck structureCheck;
     private final boolean tickTime;
+    private double preciseTime; // Purpur - Configurable daylight cycle
+    private boolean forceTime; // Purpur - Configurable daylight cycle
     private final RandomSequences randomSequences;
 
     // CraftBukkit start
@@ -695,6 +697,7 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
         this.chunkDataController = new ca.spottedleaf.moonrise.patches.chunk_system.io.datacontroller.ChunkDataController((ServerLevel)(Object)this, this.chunkTaskScheduler);
         // Paper end - rewrite chunk system
         this.getCraftServer().addWorld(this.getWorld()); // CraftBukkit
+        this.preciseTime = this.serverLevelData.getDayTime(); // Purpur - Configurable daylight cycle
     }
 
     // Paper start
@@ -860,6 +863,13 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
             this.serverLevelData.getScheduledEvents().tick(this.server, i);
             Profiler.get().pop();
             if (this.serverLevelData.getGameRules().getBoolean(GameRules.RULE_DAYLIGHT)) {
+                // Purpur start - Configurable daylight cycle
+                int incrementTicks = isDay() ? this.purpurConfig.daytimeTicks : this.purpurConfig.nighttimeTicks;
+                if (incrementTicks != 12000) {
+                    this.preciseTime += 12000 / (double) incrementTicks;
+                    this.setDayTime(this.preciseTime);
+                } else
+                // Purpur end - Configurable daylight cycle
                 this.setDayTime(this.levelData.getDayTime() + 1L);
             }
 
@@ -868,7 +878,21 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
 
     public void setDayTime(long timeOfDay) {
         this.serverLevelData.setDayTime(timeOfDay);
+        // Purpur start - Configurable daylight cycle
+        this.preciseTime = timeOfDay;
+        this.forceTime = false;
     }
+    public void setDayTime(double i) {
+        this.serverLevelData.setDayTime((long) i);
+        this.forceTime = true;
+        // Purpur end - Configurable daylight cycle
+    }
+
+    // Purpur start - Configurable daylight cycle
+    public boolean isForceTime() {
+        return this.forceTime;
+    }
+    // Purpur end - Configurable daylight cycle
 
     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 0716bd2728be4fcaa4f13485591008ce270ecf82..1060208faaa18020c5762a2eb4851f6148b5f215 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -119,6 +119,13 @@ 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 int elytraDamagePerFireworkBoost = 0;