<?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\entity\projectile;

use pocketmine\block\Block;
use pocketmine\entity\Entity;
use pocketmine\event\entity\ProjectileHitEvent;
use pocketmine\event\inventory\InventoryPickupArrowEvent;
use pocketmine\item\Item;
use pocketmine\item\ItemFactory;
use pocketmine\level\Level;
use pocketmine\math\RayTraceResult;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\network\mcpe\protocol\EntityEventPacket;
use pocketmine\network\mcpe\protocol\LevelSoundEventPacket;
use pocketmine\network\mcpe\protocol\TakeItemEntityPacket;
use pocketmine\Player;

class Arrow extends Projectile{
	public const NETWORK_ID = self::ARROW;

	public $width = 0.25;
	public $height = 0.25;

	protected $gravity = 0.05;
	protected $drag = 0.01;

	protected $damage = 2;

	public function __construct(Level $level, CompoundTag $nbt, Entity $shootingEntity = null, bool $critical = false){
		parent::__construct($level, $nbt, $shootingEntity);
		$this->setCritical($critical);
	}

	public function isCritical() : bool{
		return $this->getGenericFlag(self::DATA_FLAG_CRITICAL);
	}

	public function setCritical(bool $value = true){
		$this->setGenericFlag(self::DATA_FLAG_CRITICAL, $value);
	}

	public function getResultDamage() : int{
		$base = parent::getResultDamage();
		if($this->isCritical()){
			return ($base + mt_rand(0, (int) ($base / 2) + 1));
		}else{
			return $base;
		}
	}

	public function entityBaseTick(int $tickDiff = 1) : bool{
		if($this->closed){
			return false;
		}

		$hasUpdate = parent::entityBaseTick($tickDiff);

		if($this->age > 1200){
			$this->flagForDespawn();
			$hasUpdate = true;
		}

		return $hasUpdate;
	}

	protected function onHit(ProjectileHitEvent $event) : void{
		$this->setCritical(false);
		$this->level->broadcastLevelSoundEvent($this, LevelSoundEventPacket::SOUND_BOW_HIT);
	}

	protected function onHitBlock(Block $blockHit, RayTraceResult $hitResult) : void{
		parent::onHitBlock($blockHit, $hitResult);
		$this->broadcastEntityEvent(EntityEventPacket::ARROW_SHAKE, 7); //7 ticks
	}

	public function onCollideWithPlayer(Player $player){
		if($this->blockHit === null){
			return;
		}

		$item = ItemFactory::get(Item::ARROW, 0, 1);

		$playerInventory = $player->getInventory();
		if($player->isSurvival() and !$playerInventory->canAddItem($item)){
			return;
		}

		$this->server->getPluginManager()->callEvent($ev = new InventoryPickupArrowEvent($playerInventory, $this));
		if($ev->isCancelled()){
			return;
		}

		$pk = new TakeItemEntityPacket();
		$pk->eid = $player->getId();
		$pk->target = $this->getId();
		$this->server->broadcastPacket($this->getViewers(), $pk);

		$playerInventory->addItem(clone $item);
		$this->flagForDespawn();
	}
}