PocketMine-MP/src/pocketmine/item/ProjectileItem.php
2019-11-08 08:29:25 +00:00

80 lines
2.3 KiB
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\item;
use pocketmine\entity\Entity;
use pocketmine\entity\EntityIds;
use pocketmine\entity\projectile\Projectile;
use pocketmine\event\entity\ProjectileLaunchEvent;
use pocketmine\math\Vector3;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\network\mcpe\protocol\LevelSoundEventPacket;
use pocketmine\Player;
abstract class ProjectileItem extends Item{
abstract public function getProjectileEntityType() : string;
abstract public function getThrowForce() : float;
/**
* Helper function to apply extra NBT tags to pass to the created projectile.
*
* @param CompoundTag $tag
*/
protected function addExtraTags(CompoundTag $tag) : void{
}
public function onClickAir(Player $player, Vector3 $directionVector) : bool{
$nbt = Entity::createBaseNBT($player->add(0, $player->getEyeHeight(), 0), $directionVector, $player->yaw, $player->pitch);
$this->addExtraTags($nbt);
$projectile = Entity::createEntity($this->getProjectileEntityType(), $player->getLevel(), $nbt, $player);
if($projectile !== null){
$projectile->setMotion($projectile->getMotion()->multiply($this->getThrowForce()));
}
$this->count--;
if($projectile instanceof Projectile){
$projectileEv = new ProjectileLaunchEvent($projectile);
$projectileEv->call();
if($projectileEv->isCancelled()){
$projectile->flagForDespawn();
}else{
$projectile->spawnToAll();
$player->getLevel()->broadcastLevelSoundEvent($player, LevelSoundEventPacket::SOUND_THROW, 0, EntityIds::PLAYER);
}
}elseif($projectile !== null){
$projectile->spawnToAll();
}else{
return false;
}
return true;
}
}