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https://github.com/pmmp/PocketMine-MP.git
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82 lines
2.5 KiB
PHP
82 lines
2.5 KiB
PHP
<?php
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/*
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*
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* ____ _ _ __ __ _ __ __ ____
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* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
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* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
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* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
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* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* @author PocketMine Team
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* @link http://www.pocketmine.net/
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*
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*
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*/
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declare(strict_types=1);
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namespace pocketmine\item;
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use pocketmine\entity\EntityFactory;
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use pocketmine\entity\projectile\Throwable;
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use pocketmine\event\entity\ProjectileLaunchEvent;
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use pocketmine\math\Vector3;
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use pocketmine\nbt\tag\CompoundTag;
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use pocketmine\player\Player;
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use pocketmine\utils\Utils;
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use pocketmine\world\sound\ThrowSound;
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abstract class ProjectileItem extends Item{
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/**
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* Returns the entity type that this projectile creates. This should return a ::class extending Throwable.
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*
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* @return string class extends Throwable
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* @phpstan-return class-string<Throwable>
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*/
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abstract public function getProjectileEntityClass() : string;
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abstract public function getThrowForce() : float;
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/**
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* Helper function to apply extra NBT tags to pass to the created projectile.
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*/
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protected function addExtraTags(CompoundTag $tag) : void{
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}
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public function onClickAir(Player $player, Vector3 $directionVector) : ItemUseResult{
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$location = $player->getLocation();
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$nbt = EntityFactory::createBaseNBT($player->getEyePos(), $directionVector, $location->yaw, $location->pitch);
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$this->addExtraTags($nbt);
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$class = $this->getProjectileEntityClass();
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Utils::testValidInstance($class, Throwable::class);
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/** @var Throwable $projectile */
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$projectile = EntityFactory::getInstance()->create($class, $location->getWorldNonNull(), $nbt, $player);
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$projectile->setMotion($projectile->getMotion()->multiply($this->getThrowForce()));
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$projectileEv = new ProjectileLaunchEvent($projectile);
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$projectileEv->call();
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if($projectileEv->isCancelled()){
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$projectile->flagForDespawn();
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return ItemUseResult::FAIL();
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}
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$projectile->spawnToAll();
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$location->getWorldNonNull()->addSound($location, new ThrowSound());
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$this->pop();
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return ItemUseResult::SUCCESS();
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}
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}
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