PocketMine-MP/src/entity/object/PrimedTNT.php
Dylan K. Taylor b7e2b3e94a
Entity: Require declaration of gravity and drag via abstract methods
this guarantees that subclasses will actually declare them.

[bc break]
2022-06-01 20:51:18 +01:00

144 lines
4.1 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\entity\object;
use pocketmine\entity\Entity;
use pocketmine\entity\EntitySizeInfo;
use pocketmine\entity\Explosive;
use pocketmine\event\entity\EntityDamageEvent;
use pocketmine\event\entity\ExplosionPrimeEvent;
use pocketmine\math\Vector3;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\network\mcpe\protocol\types\entity\EntityIds;
use pocketmine\network\mcpe\protocol\types\entity\EntityMetadataCollection;
use pocketmine\network\mcpe\protocol\types\entity\EntityMetadataFlags;
use pocketmine\network\mcpe\protocol\types\entity\EntityMetadataProperties;
use pocketmine\world\Explosion;
use pocketmine\world\Position;
class PrimedTNT extends Entity implements Explosive{
public static function getNetworkTypeId() : string{ return EntityIds::TNT; }
/** @var int */
protected $fuse;
protected bool $worksUnderwater = false;
public $canCollide = false;
protected function getInitialSizeInfo() : EntitySizeInfo{ return new EntitySizeInfo(0.98, 0.98); }
protected function getInitialDragMultiplier() : float{ return 0.02; }
protected function getInitialGravity() : float{ return 0.04; }
public function getFuse() : int{
return $this->fuse;
}
public function setFuse(int $fuse) : void{
if($fuse < 0 || $fuse > 32767){
throw new \InvalidArgumentException("Fuse must be in the range 0-32767");
}
$this->fuse = $fuse;
$this->networkPropertiesDirty = true;
}
public function worksUnderwater() : bool{ return $this->worksUnderwater; }
public function setWorksUnderwater(bool $worksUnderwater) : void{
$this->worksUnderwater = $worksUnderwater;
$this->networkPropertiesDirty = true;
}
public function attack(EntityDamageEvent $source) : void{
if($source->getCause() === EntityDamageEvent::CAUSE_VOID){
parent::attack($source);
}
}
protected function initEntity(CompoundTag $nbt) : void{
parent::initEntity($nbt);
$this->fuse = $nbt->getShort("Fuse", 80);
}
public function canCollideWith(Entity $entity) : bool{
return false;
}
public function saveNBT() : CompoundTag{
$nbt = parent::saveNBT();
$nbt->setShort("Fuse", $this->fuse);
return $nbt;
}
protected function entityBaseTick(int $tickDiff = 1) : bool{
if($this->closed){
return false;
}
$hasUpdate = parent::entityBaseTick($tickDiff);
if(!$this->isFlaggedForDespawn()){
$this->fuse -= $tickDiff;
$this->networkPropertiesDirty = true;
if($this->fuse <= 0){
$this->flagForDespawn();
$this->explode();
}
}
return $hasUpdate || $this->fuse >= 0;
}
public function explode() : void{
$ev = new ExplosionPrimeEvent($this, 4);
$ev->call();
if(!$ev->isCancelled()){
//TODO: deal with underwater TNT (underwater TNT treats water as if it has a blast resistance of 0)
$explosion = new Explosion(Position::fromObject($this->location->add(0, $this->size->getHeight() / 2, 0), $this->getWorld()), $ev->getForce(), $this);
if($ev->isBlockBreaking()){
$explosion->explodeA();
}
$explosion->explodeB();
}
}
protected function syncNetworkData(EntityMetadataCollection $properties) : void{
parent::syncNetworkData($properties);
$properties->setGenericFlag(EntityMetadataFlags::IGNITED, true);
$properties->setInt(EntityMetadataProperties::VARIANT, $this->worksUnderwater ? 1 : 0);
$properties->setInt(EntityMetadataProperties::FUSE_LENGTH, $this->fuse);
}
public function getOffsetPosition(Vector3 $vector3) : Vector3{
return $vector3->add(0, 0.49, 0);
}
}