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 9ec6145fe04ec64bbee8ec6a837719caebdbc6f5..358d610ad020cada1bb83e393deeeaaec05a2791 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;
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 477248c492c326c5214d2ceb669366d7992ee52f..44e01ac1874d07d5348b53bb1af613b01606fef1 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1533,7 +1533,7 @@ 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
                     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 af57326c8d461d3c5d84f582d5bc6345c3c9367b..0e8452f6a8300992f397fb15db763304d72fe3b9 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -214,6 +214,8 @@ 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
     private final RandomSequences randomSequences;
     public long lastMidTickExecuteFailure; // Paper - execute chunk tasks mid tick
 
@@ -750,6 +752,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
 
         this.chunkTaskScheduler = new io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler(this, io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler.workerThreads); // Paper - rewrite chunk system
         this.entityLookup = new io.papermc.paper.chunk.system.entity.EntityLookup(this, new EntityCallbacks()); // Paper - rewrite chunk system
+        this.preciseTime = this.serverLevelData.getDayTime(); // Purpur
     }
 
     // Paper start
@@ -933,6 +936,13 @@ 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);
             }
 
@@ -941,7 +951,21 @@ 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 ae3beab9a442477973bc8f9ccd47f479d7ddc9ee..a721eb79dc528ada6a08265bb1f2895c31f0386e 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -122,6 +122,13 @@ 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;