import UIKit


class ViewController: UIViewController {

var isBlue = true

    @IBOutlet var blueView: UIView!
    @IBOutlet var GreenView: UIView!


    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }

    @IBAction func changeBackgroud(_ sender: Any) {
        //let aquaColor = blueView.backgroudColor
        if isBlue == true {
            blueView.backgroundColor = GreenView.backgroundColor
        }
        else { blueView.backgroundColor = UIColor(displayP3Red: 0/255, green: 128/255.0, blue: 255/255.0, alpha: 1)

        }
        isBlue = !isBlue
    }

    @IBAction func didBeginPanGesture(_ sender: UIPanGestureRecognizer) {
        let poin = sender.location(in: view)
        GreenView.center = CGPoint(x: poin.x,y: poin.y)