From 92143d523cc0c073026f01a31995905a204cd99c Mon Sep 17 00:00:00 2001
From: Shoghi Cervantes <shoghicp@gmail.com>
Date: Thu, 6 Nov 2014 19:07:24 +0100
Subject: [PATCH] Added SetDifficultyPacket

---
 src/pocketmine/Player.php                     |  5 ++
 .../command/defaults/DifficultyCommand.php    |  4 ++
 src/pocketmine/network/RakLibInterface.php    |  2 +
 src/pocketmine/network/protocol/Info.php      |  1 +
 .../network/protocol/SetDifficultyPacket.php  | 46 +++++++++++++++++++
 5 files changed, 58 insertions(+)
 create mode 100644 src/pocketmine/network/protocol/SetDifficultyPacket.php

diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index cbd52cbf6..2b05bd4f5 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -94,6 +94,7 @@ use pocketmine\network\protocol\Info as ProtocolInfo;
 use pocketmine\network\protocol\LoginStatusPacket;
 use pocketmine\network\protocol\MessagePacket;
 use pocketmine\network\protocol\MovePlayerPacket;
+use pocketmine\network\protocol\SetDifficultyPacket;
 use pocketmine\network\protocol\SetHealthPacket;
 use pocketmine\network\protocol\SetSpawnPositionPacket;
 use pocketmine\network\protocol\SetTimePacket;
@@ -1447,6 +1448,10 @@ class Player extends Human implements CommandSender, InventoryHolder, IPlayer{
 					$this->dead = true;
 				}
 
+				$pk = new SetDifficultyPacket();
+				$pk->difficulty = $this->server->getDifficulty();
+				$this->dataPacket($pk);
+
 				$this->server->getLogger()->info(TextFormat::AQUA . $this->username . TextFormat::WHITE . "[/" . $this->ip . ":" . $this->port . "] logged in with entity id " . $this->id . " at (" . $this->level->getName() . ", " . round($this->x, 4) . ", " . round($this->y, 4) . ", " . round($this->z, 4) . ")");
 
 
diff --git a/src/pocketmine/command/defaults/DifficultyCommand.php b/src/pocketmine/command/defaults/DifficultyCommand.php
index 29e770bad..892e91cb4 100644
--- a/src/pocketmine/command/defaults/DifficultyCommand.php
+++ b/src/pocketmine/command/defaults/DifficultyCommand.php
@@ -22,6 +22,7 @@
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
+use pocketmine\network\protocol\SetDifficultyPacket;
 use pocketmine\Server;
 use pocketmine\utils\TextFormat;
 
@@ -55,6 +56,9 @@ class DifficultyCommand extends VanillaCommand{
 
 		if($difficulty !== -1){
 			$sender->getServer()->setConfigInt("difficulty", $difficulty);
+			$pk = new SetDifficultyPacket();
+			$pk->difficulty = $sender->getServer()->getDifficulty();
+			Server::broadcastPacket($sender->getServer()->getOnlinePlayers(), $pk);
 			$sender->sendMessage("Set difficulty to " . $difficulty);
 		}else{
 			$sender->sendMessage("Unknown difficulty");
diff --git a/src/pocketmine/network/RakLibInterface.php b/src/pocketmine/network/RakLibInterface.php
index c0632a483..b389581a2 100644
--- a/src/pocketmine/network/RakLibInterface.php
+++ b/src/pocketmine/network/RakLibInterface.php
@@ -60,6 +60,7 @@ use pocketmine\network\protocol\RemovePlayerPacket;
 use pocketmine\network\protocol\RespawnPacket;
 use pocketmine\network\protocol\RotateHeadPacket;
 use pocketmine\network\protocol\SendInventoryPacket;
+use pocketmine\network\protocol\SetDifficultyPacket;
 use pocketmine\network\protocol\SetEntityDataPacket;
 use pocketmine\network\protocol\SetEntityMotionPacket;
 use pocketmine\network\protocol\SetHealthPacket;
@@ -328,6 +329,7 @@ class RakLibInterface implements ServerInstance, SourceInterface{
 		$this->registerPacket(ProtocolInfo::ADVENTURE_SETTINGS_PACKET, AdventureSettingsPacket::class);
 		$this->registerPacket(ProtocolInfo::ENTITY_DATA_PACKET, EntityDataPacket::class);
 		$this->registerPacket(ProtocolInfo::UNLOAD_CHUNK_PACKET, UnloadChunkPacket::class);
+		$this->registerPacket(ProtocolInfo::SET_DIFFICULTY_PACKET, SetDifficultyPacket::class);
 	}
 
 	private function getPacket($buffer){
diff --git a/src/pocketmine/network/protocol/Info.php b/src/pocketmine/network/protocol/Info.php
index fda76bcb1..953c7f200 100644
--- a/src/pocketmine/network/protocol/Info.php
+++ b/src/pocketmine/network/protocol/Info.php
@@ -88,5 +88,6 @@ interface Info{
 	//const PLAYER_INPUT_PACKET = 0xb9;
 	const FULL_CHUNK_DATA_PACKET = 0xba;
 	const UNLOAD_CHUNK_PACKET = 0xbb;
+	const SET_DIFFICULTY_PACKET = 0xbc;
 
 }
\ No newline at end of file
diff --git a/src/pocketmine/network/protocol/SetDifficultyPacket.php b/src/pocketmine/network/protocol/SetDifficultyPacket.php
new file mode 100644
index 000000000..9608c3b72
--- /dev/null
+++ b/src/pocketmine/network/protocol/SetDifficultyPacket.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____  
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \ 
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/ 
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_| 
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ * 
+ *
+*/
+
+namespace pocketmine\network\protocol;
+
+#include <rules/DataPacket.h>
+
+
+class SetDifficultyPacket extends DataPacket{
+	public static $pool = [];
+	public static $next = 0;
+
+	public $difficulty;
+
+	public function pid(){
+		return Info::SET_DIFFICULTY_PACKET;
+	}
+
+	public function decode(){
+		$this->difficulty = $this->getInt();
+	}
+
+	public function encode(){
+		$this->reset();
+		$this->putInt($this->difficulty);
+	}
+
+}
\ No newline at end of file