title: Making a half circle path with CGPath, and follow the path with SKAction
body: <p>I have no idea how to make a half circle path with CGPath. There is the code i have: </p>
  
  <pre><code>  let path = CGPathCreateMutable()
    let Width: CGFloat = 38.0
    let radius: CGFloat = (Width / 2.0) + (Treshold / 2.0)
    CGPathAddArc(pathOne, nil, x, 0.0, radius, firstPoint.position.x, secondPoint.position.x, true)
    let waitAction = SKAction.waitForDuration(1.0)
    let moveAction = SKAction.followPath(pathOne, duration: 3.0)
    capOne.runAction(SKAction.sequence([waitAction, moveAction]))
  </code></pre>