ios – 如何在spriteKit和swift中区分手势和触摸？

class GameScene: SKScene,SKPhysicsContactDelegate {

override func didMoveToView(view: SKView) {
    /* Setup your scene here */

    // physics & collisions
    physicsWorld.gravity = CGVectorMake(0.0,0.0)
    physicsWorld.contactDelegate = self

    // Swipe down
    let swipeDown:UISwipeGestureRecognizer = UISwipeGestureRecognizer(target: self,action: SELEctor("swipedDown:"))
    swipeDown.direction = .Down
    view.addGestureRecognizer(swipeDown)

}

//MARK: Swipes
func swipedDown(sender:UISwipeGestureRecognizer){
    //first function
    swipeDown()
}

//MARK: Touches
override func touchesBegan(touches: Set<UITouch>,withEvent event: UIEvent?) {
    /* Called when a touch begins */

    for touch in touches {
        let LOCATIOn = touch.LOCATIOnInNode(self)
        // second function
        attack()
    }
}

}