Add Animation in ARKit

gistfile1.txt

func addAnimation(node: SCNNode) {
    let rotateOne = SCNAction.rotateBy(x: 0, y: CGFloat(Float.pi), z: 0, duration: 5.0)
    let hoverUp = SCNAction.moveBy(x: 0, y: 0.2, z: 0, duration: 2.5)
    let hoverDown = SCNAction.moveBy(x: 0, y: -0.2, z: 0, duration: 2.5)
    let hoverSequence = SCNAction.sequence([hoverUp, hoverDown])
    let rotateAndHover = SCNAction.group([rotateOne, hoverSequence])
    let repeatForever = SCNAction.repeatForever(rotateAndHover)
    node.runAction(repeatForever)
}