Implemented dragon egg

src/pocketmine/block/BlockFactory.php

@@ -114,6 +114,7 @@ class BlockFactory{
 		self::register(new DoublePlant(new BID(Block::DOUBLE_PLANT, 5), "Peony"));
 		self::register(new DoubleTallGrass(new BID(Block::DOUBLE_PLANT, 2), "Double Tallgrass"));
 		self::register(new DoubleTallGrass(new BID(Block::DOUBLE_PLANT, 3), "Large Fern"));
+		self::register(new DragonEgg(new BID(Block::DRAGON_EGG), "Dragon Egg"));
 		self::register(new Emerald(new BID(Block::EMERALD_BLOCK), "Emerald Block"));
 		self::register(new EmeraldOre(new BID(Block::EMERALD_ORE), "Emerald Ore"));
 		self::register(new EnchantingTable(new BID(Block::ENCHANTING_TABLE, 0, null, \pocketmine\tile\EnchantTable::class), "Enchanting Table"));

src/pocketmine/block/DragonEgg.php

@@ -0,0 +1,87 @@
+<?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/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\block;
+
+use pocketmine\block\utils\Fallable;
+use pocketmine\block\utils\FallableTrait;
+use pocketmine\item\Item;
+use pocketmine\item\TieredTool;
+use pocketmine\level\Level;
+use pocketmine\level\particle\DragonEggTeleportParticle;
+use pocketmine\math\Vector3;
+use pocketmine\Player;
+use function max;
+use function min;
+use function mt_rand;
+
+class DragonEgg extends Transparent implements Fallable{
+	use FallableTrait;
+
+	public function getHardness() : float{
+		return 3;
+	}
+
+	public function getToolType() : int{
+		return BlockToolType::TYPE_PICKAXE;
+	}
+
+	public function getToolHarvestLevel() : int{
+		return TieredTool::TIER_WOODEN;
+	}
+
+	public function getLightLevel() : int{
+		return 1;
+	}
+
+	public function tickFalling() : ?Block{
+		return null;
+	}
+
+	public function onActivate(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+		$this->teleport();
+		return true;
+	}
+
+	public function onAttack(Item $item, int $face, ?Player $player = null) : bool{
+		$this->teleport();
+		return true;
+	}
+
+	protected function teleport() : void{
+		for($tries = 0; $tries < 16; ++$tries){
+			$block = $this->level->getBlockAt(
+				$this->x + mt_rand(-16, 16),
+				max(0, min(Level::Y_MAX - 1, $this->y + mt_rand(-8, 8))),
+				$this->z + mt_rand(-16, 16)
+			);
+			if($block instanceof Air){
+				$this->level->addParticle($this, new DragonEggTeleportParticle($this->x - $block->x, $this->y - $block->y, $this->z - $block->z));
+				//TODO: add events
+				$this->level->setBlock($this, BlockFactory::get(Block::AIR));
+				$this->level->setBlock($block, $this);
+				break;
+			}
+		}
+	}
+}

src/pocketmine/level/particle/DragonEggTeleportParticle.php

@@ -0,0 +1,66 @@
+<?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/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\level\particle;
+
+use pocketmine\math\Vector3;
+use pocketmine\network\mcpe\protocol\LevelEventPacket;
+use function abs;
+
+class DragonEggTeleportParticle implements Particle{
+
+	/** @var int */
+	private $xDiff;
+	/** @var int */
+	private $yDiff;
+	/** @var int */
+	private $zDiff;
+
+	public function __construct(int $xDiff, int $yDiff, int $zDiff){
+		$this->xDiff = self::boundOrThrow($xDiff);
+		$this->yDiff = self::boundOrThrow($yDiff);
+		$this->zDiff = self::boundOrThrow($zDiff);
+	}
+
+	private static function boundOrThrow(int $v) : int{
+		if($v < -255 or $v > 255){
+			throw new \InvalidArgumentException("Value must be between -255 and 255");
+		}
+		return $v;
+	}
+
+	public function encode(Vector3 $pos){
+		$pk = new LevelEventPacket();
+		$pk->evid = LevelEventPacket::EVENT_PARTICLE_DRAGON_EGG_TELEPORT;
+		$pk->position = $pos;
+		$pk->data =
+			($this->zDiff < 0 ? 1 << 26 : 0) |
+			($this->yDiff < 0 ? 1 << 25 : 0) |
+			($this->xDiff < 0 ? 1 << 24 : 0) |
+			(abs($this->xDiff) << 16) |
+			(abs($this->yDiff) << 8) |
+			abs($this->zDiff);
+
+		return $pk;
+	}
+}

src/pocketmine/network/mcpe/protocol/LevelEventPacket.php

@@ -81,6 +81,7 @@ class LevelEventPacket extends DataPacket implements ClientboundPacket{
 
 	public const EVENT_PARTICLE_BLOCK_FORCE_FIELD = 2008;
 	public const EVENT_PARTICLE_PROJECTILE_HIT = 2009;
+	public const EVENT_PARTICLE_DRAGON_EGG_TELEPORT = 2010;
 
 	public const EVENT_PARTICLE_ENDERMAN_TELEPORT = 2013;
 	public const EVENT_PARTICLE_PUNCH_BLOCK = 2014;