SpriteKit 접촉 및 유지시 SKSpriteNode 속도

Question

self.physicsWorld.gravity = CGVectorMake(0.0, -4.0);으로 인해 강제로 떨어지는 SKSpriteNode가 있습니다. 사용자가 화면을 두드려 잡고있을 때, 나는 SKSpriteNode가 날아 가기를 원하고, 사용자가 터치를 멈 추면 다시 땅으로 떨어집니다.

...

나는 속도를 변경하려 시도했지만, 그것은 단지 applyImpulse 방법 같은 작은 바운스를 만든다 :

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) { 
     /* Called when a touch begins */ 

     for touch: AnyObject in touches { 

      let location = touch.locationInNode(self) 

      flyingObject.physicsBody.velocity = CGVectorMake(0, 100) 
     }   
    } 

편집 :

여기 내 장면 초기화 코드의

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

     // Physics 
     self.physicsWorld.gravity = CGVectorMake(0.0, -4.0); 

     // flyingObject 
     var flyingObjectTexture = SKTexture(imageNamed:"flyingObject") 
     flyingObject.filteringMode = SKTextureFilteringMode.Nearest 

     flyingObject = SKSpriteNode(texture: flyingObjectTexture) 
     flyingObject.setScale(1) 
     flyingObject.position = CGPoint(x: self.frame.size.width * 0.35, y: self.frame.size.height * 0.6) 

     flyingObject.physicsBody = SKPhysicsBody(circleOfRadius:flyingObject.size.height/2.0) 
     flyingObject.physicsBody.dynamic = true 
     flyingObject.physicsBody.allowsRotation = false 

     self.addChild(flyingObject) 

     // Ground 
     var groundTexture = SKTexture(imageNamed:"Ground") 

     var sprite = SKSpriteNode(texture:groundTexture) 
     sprite.setScale(0.5) 
     sprite.position = CGPointMake(self.size.width/2 - 100, sprite.size.height) 

     self.addChild(sprite) 

     var ground = SKNode() 

     ground.position = CGPointMake(0, groundTexture.size().height/2) 
     ground.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(self.frame.width, groundTexture.size().height * 0.5)) 

     ground.physicsBody.dynamic = false 
     self.addChild(ground) 

    } 

Answer 1

덕분에, 내가 생각했던 것보다 쉽게 ​​:

는

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) { 
     /* Called when a touch begins */ 
     isTouching = true 
    } 

    override func touchesEnded(touches: NSSet!, withEvent event: UIEvent!) { 
     /* Called when a touch begins */ 
     isTouching = false 
    } 

    override func update(currentTime: CFTimeInterval) { 
     /* Called before each frame is rendered */ 
     if isTouching { 
      flyingObject.physicsBody.applyImpulse(CGVectorMake(0, 5)) 
     } 
    } 

Answer 2

터치 시작 :

- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ 

UITouch * touch = [touches anyObject]; 
CGPoint location = [touch locationInNode:self]; 

flyingObject.physicsBody.velocity = CGVectorMake(0, 100) 
} 

접촉이 종료 : 나는 해결책을 마련 할 수 있었다 코드 원숭이에

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { 

UITouch * touch = [touches anyObject]; 
CGPoint location = [touch locationInNode:self]; 

flyingObject.physicsBody.velocity = CGVectorMake(0, 0) 

}