class BetterEnderPearl extends EPearl
{
    public $level;


    /**
     * BetterEnderPearl constructor.
     * @param Level $level
     * @param CompoundTag $nbt
     * @param Entity|null $shootingEntity
     */
    public function __construct(Level $level, CompoundTag $nbt, Entity $shootingEntity = null)
    {
        parent::__construct($level, $nbt, $shootingEntity);
        $this->level = $level;
    }

    protected function calculateInterceptWithBlock(Block $block, Vector3 $start, Vector3 $end) : ?RayTraceResult{ //Editing this to make the bounding box smaller so you can pearl through Gates/slabs
        if($block->getId() !== Block::AIR and empty($block->getCollisionBoxes())){
            $bb = new AxisAlignedBB(
                $block->x,
                $block->y,
                $block->z,
                $block->x + 0.2,
                $block->y + 0.2,
                $block->z + 0.2
            );
            return $bb->calculateIntercept($start, $end);
        }
        return parent::calculateInterceptWithBlock($block, $start, $end);
    }


    private function generateTestingZombie(Vector3 $pos): Entity
    {
        $nbt = Entity::createBaseNBT($pos);
        $zombie = new Zombie($this->level, $nbt);
        return $zombie;
    }

    private function isInsideOfBlock(Entity $entity)
    {
        $block = $entity->level->getBlockAt((int)floor($entity->x), (int)floor($y = ($entity->y + $entity->getEyeHeight())), (int)floor($entity->z));

        return $block->isSolid() and $block->collidesWithBB($entity->getBoundingBox());
    }


    protected function onHit(ProjectileHitEvent $event) : void
    {
        $result = $event->getRayTraceResult();
        $owner = $this->getOwningEntity();
        $facing = $result->getHitFace();
        $hit = $result->getHitVector();
        if ($event instanceof ProjectileHitBlockEvent) {
            $pos = $event->getBlockHit();
        } elseif ($event instanceof ProjectileHitEntityEventct) {
            $pos = $event->getEntityHit();
        } else $hit = null;
        if (!$owner instanceof Player|| $hit === null) {
            return;
        }
        $distance = sqrt((($owner->x - $hit->x) ** 2) + ((($owner->y + 1) - $hit->y) ** 2) + (($owner->z - $hit->z) ** 2));
        if (!$hit instanceof Air and $distance < 2.25 and $facing !== 1) {
            $owner->sendMessage(TextFormat::RED . "You cannot pearl inside this block");
            $owner->getInventory()->addItem(Item::get(Item::ENDER_PEARL, 0, 1));
            // reset cooldown
            return;
        }
        if($facing === 2) $pos = $pos->subtract(0, 0, 0.2);
        if($facing === 4) $pos = $pos->subtract(0.2);
        $zombie = $this->generateTestingZombie($pos);
        if($this->isInsideOfBlock($zombie) && $hit instanceof Block){
            $zombie->flagForDespawn();
            $owner->sendMessage(TextFormat::RED . "You cannot pearl inside this block");
            $owner->getInventory()->addItem(Item::get(Item::ENDER_PEARL, 0, 1));
           // reset cooldown
            return;
        }
        $zombie->flagForDespawn();
        $this->level->broadcastLevelEvent($owner, LevelEventPacket::EVENT_PARTICLE_ENDERMAN_TELEPORT);
        $this->level->addSound(new EndermanTeleportSound($owner));
        $owner->teleport($pos);
        $this->level->addSound(new EndermanTeleportSound($owner));
        $owner->attack(new EntityDamageEvent($owner, EntityDamageEvent::CAUSE_FALL, 2));
    }