pocketmine\entity\Minecart::checkForVertical PHP Метод

    private function checkForVertical($railType, $currentDirection)
    {
        switch ($railType) {
            case Rail::SLOPED_ASCENDING_NORTH:
                switch ($currentDirection) {
                    case Entity::NORTH:
                        // Headed north up
                        $diff = $this->x - $this->getFloorX();
                        if ($diff !== 0 and $diff <= 0.5) {
                            $dx = $this->getFloorX() - 0.1 - $this->x;
                            $this->move($dx, 1, 0);
                            return true;
                        }
                        break;
                    case ENTITY::SOUTH:
                        // Headed south down
                        $diff = $this->x - $this->getFloorX();
                        if ($diff !== 0 and $diff >= 0.5) {
                            $dx = $this->getFloorX() + 1 - $this->x;
                            $this->move($dx, -1, 0);
                            return true;
                        }
                        break;
                }
                break;
            case Rail::SLOPED_ASCENDING_SOUTH:
                switch ($currentDirection) {
                    case Entity::SOUTH:
                        // Headed south up
                        $diff = $this->x - $this->getFloorX();
                        if ($diff !== 0 and $diff >= 0.5) {
                            $dx = $this->getFloorX() + 1 - $this->x;
                            $this->move($dx, 1, 0);
                            return true;
                        }
                        break;
                    case Entity::NORTH:
                        // Headed north down
                        $diff = $this->x - $this->getFloorX();
                        if ($diff !== 0 and $diff <= 0.5) {
                            $dx = $this->getFloorX() - 0.1 - $this->x;
                            $this->move($dx, -1, 0);
                            return true;
                        }
                        break;
                }
                break;
            case Rail::SLOPED_ASCENDING_EAST:
                switch ($currentDirection) {
                    case Entity::EAST:
                        // Headed east up
                        $diff = $this->z - $this->getFloorZ();
                        if ($diff !== 0 and $diff <= 0.5) {
                            $dz = $this->getFloorZ() - 0.1 - $this->z;
                            $this->move(0, 1, $dz);
                            return true;
                        }
                        break;
                    case Entity::WEST:
                        // Headed west down
                        $diff = $this->z - $this->getFloorZ();
                        if ($diff !== 0 and $diff >= 0.5) {
                            $dz = $this->getFloorZ() + 1 - $this->z;
                            $this->move(0, -1, $dz);
                            return true;
                        }
                        break;
                }
                break;
            case Rail::SLOPED_ASCENDING_WEST:
                switch ($currentDirection) {
                    case Entity::WEST:
                        // Headed west up
                        $diff = $this->z - $this->getFloorZ();
                        if ($diff !== 0 and $diff >= 0.5) {
                            $dz = $this->getFloorZ() + 1 - $this->z;
                            $this->move(0, 1, $dz);
                            return true;
                        }
                        break;
                    case Entity::EAST:
                        // Headed east down
                        $diff = $this->z - $this->getFloorZ();
                        if ($diff !== 0 and $diff <= 0.5) {
                            $dz = $this->getFloorZ() - 0.1 - $this->z;
                            $this->move(0, -1, $dz);
                            return true;
                        }
                        break;
                }
                break;
        }
        return false;
    }