PocketMine-MP/src/pocketmine/block/Ice.php

<?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\item\enchantment\Enchantment;
use pocketmine\item\Item;
use pocketmine\Player;

class Ice extends Transparent{

	public function getHardness() : float{
		return 0.5;
	}

	public function getLightFilter() : int{
		return 2;
	}

	public function getFrictionFactor() : float{
		return 0.98;
	}

	public function getToolType() : int{
		return BlockToolType::TYPE_PICKAXE;
	}

	public function onBreak(Item $item, ?Player $player = null) : bool{
		if(($player === null or $player->isSurvival()) and !$item->hasEnchantment(Enchantment::SILK_TOUCH())){
			return $this->getLevel()->setBlock($this, BlockFactory::get(BlockIds::WATER));
		}
		return parent::onBreak($item, $player);
	}

	public function ticksRandomly() : bool{
		return true;
	}

	public function onRandomTick() : void{
		if($this->level->getHighestAdjacentBlockLight($this->x, $this->y, $this->z) >= 12){
			$this->level->useBreakOn($this);
		}
	}

	public function getDropsForCompatibleTool(Item $item) : array{
		return [];
	}
}