CODEWITHSUNDEEP
swiftxcodesprite-kitswift4
GS.
GS.

Reputation: 123

applyImpulse Not Working

I have an SKShapeNode that I'm not able to apply an impulse to. What's my problem? Thanks

Code:

        var ball = SKShapeNode()

        ball.path = UIBezierPath(roundedRect: CGRect(x:-ballWidth/2, y: -ballHeight/2, width: ballWidth, height: ballHeight), cornerRadius: 64).cgPath
        ball.position = CGPoint(x: self.frame.width / 2, y: self.frame.height / 2)
        ball.physicsBody = SKPhysicsBody(circleOfRadius: CGFloat(ballWidth / 2));
        ball.physicsBody?.affectedByGravity = false
        ball.physicsBody?.isDynamic = false
        ball.physicsBody?.categoryBitMask = ballCategory
        ball.physicsBody?.collisionBitMask = enemyCategory
        ball.physicsBody?.contactTestBitMask = enemyCategory
        ball.isHidden = false
        ball.fillColor = UIColor.blue
        ball.strokeColor = UIColor.white
        ball.lineWidth = 10
        ball.name = "ball"
        ball.zPosition = 0



        addChild(ball)

        ball.physicsBody?.applyImpulse(CGVector(dx: 50, dy: 50))

Upvotes: 0

Views: 395

Answers (1)

Knight0fDragon
Knight0fDragon

Reputation: 16827

ball.physicsBody?.isDynamic = false means to ignore impulses and other forces. You need to set this to true.

Upvotes: 4

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