PocketMine-MP/src/pocketmine/event/entity/EntityDamageByEntityEvent.php
2018-08-25 18:37:18 +01:00

89 lines
2.5 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\event\entity;
use pocketmine\entity\Effect;
use pocketmine\entity\Entity;
use pocketmine\entity\Living;
/**
* Called when an entity takes damage from another entity.
*/
class EntityDamageByEntityEvent extends EntityDamageEvent{
/** @var int */
private $damagerEntityId;
/** @var float */
private $knockBack;
/**
* @param Entity $damager
* @param Entity $entity
* @param int $cause
* @param float $damage
* @param float[] $modifiers
* @param float $knockBack
*/
public function __construct(Entity $damager, Entity $entity, int $cause, float $damage, array $modifiers = [], float $knockBack = 0.4){
$this->damagerEntityId = $damager->getId();
$this->knockBack = $knockBack;
parent::__construct($entity, $cause, $damage, $modifiers);
$this->addAttackerModifiers($damager);
}
protected function addAttackerModifiers(Entity $damager) : void{
if($damager instanceof Living){ //TODO: move this to entity classes
if($damager->hasEffect(Effect::STRENGTH)){
$this->setModifier($this->getBaseDamage() * 0.3 * $damager->getEffect(Effect::STRENGTH)->getEffectLevel(), self::MODIFIER_STRENGTH);
}
if($damager->hasEffect(Effect::WEAKNESS)){
$this->setModifier(-($this->getBaseDamage() * 0.2 * $damager->getEffect(Effect::WEAKNESS)->getEffectLevel()), self::MODIFIER_WEAKNESS);
}
}
}
/**
* Returns the attacking entity, or null if the attacker has been killed or closed.
*
* @return Entity|null
*/
public function getDamager() : ?Entity{
return $this->getEntity()->getLevel()->getServer()->findEntity($this->damagerEntityId);
}
/**
* @return float
*/
public function getKnockBack() : float{
return $this->knockBack;
}
/**
* @param float $knockBack
*/
public function setKnockBack(float $knockBack) : void{
$this->knockBack = $knockBack;
}
}