[PHP] 生成器模式-创建型设计模式

class Director
{
    public function build(Builder $builder): Vehicle
    {
        $builder->createVehicle();
        $builder->addDoors();
        $builder->addEngine();
        $builder->addWheel();
        return $builder->getVehicle();
    }
}

interface Builder
{
    public function createVehicle();
    public function addWheel();
    public function addEngine();
    public function addDoors();
    public function getVehicle(): Vehicle;
}

class TruckBuilder implements Builder
{
    private Truck $truck;
    public function addDoors(){
    }
    public function addEngine(){
    }
    public function addWheel(){
    }

    public function createVehicle(){
    }

    public function getVehicle(): Vehicle{
    }
}

$truckBuilder = new TruckBuilder();
$newVehicle = (new Director())->build($truckBuilder);