// First, initialize your presented controller
let alert = SomeController()
// Second, initialize a subclass of AlertTransition, such as EasyTransition, configure your controller with it
alert.at.transition = EasyTransition()
// Present your controller, Amazing!!
present(alert, animated: true, completion: nil)

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

	// First, find presented controller
	let controller = segue.destination 
	// Second, initialize a subclass of AlertTransition, such as EasyTransition, configure your controller with it  
	controller.at.transition = EasyTransition()
}

@IBAction func dismissButtonClicked() {
    dismiss(animated: true, completion: nil)
}

class SomeController: UIViewController, AlertFrameProtocol {
    
    var alertFrame: CGRect {
        let x = (UIScreen.main.bounds.size.width - 200) / 2
        let y = (UIScreen.main.bounds.size.height - 250) / 2
        return CGRect(x: x, y: y, width: 200, height: 250)
    }
}

let alert = SomeController()

// It is a property of AlertTransition, you can use any subclass, just use EasyTransition as an example
let transition = EasyTransition()
transition.backgroundType = .blurEffect(style: .extraLight, alpha: 0.9)
// transition.backgroundType = .blurEffect(style: .light, alpha: 0.9)
// transition.backgroundType = .blurEffect(style: .dark, alpha: 0.9)
// transition.backgroundType = .color(UIColor.blue.withAlphaComponent(0.5))
    
alert.at.transition = transition
present(alert, animated: true, completion: nil)

let alert = SomeController()
let transition = EasyTransition()
transition.startTransforms = [.rotation(angle: CGFloat(Double.pi/2), anchorPoint: CGPoint(x: 0, y: 0)), .alpha(0)]
alert.at.transition = transition
present(alert, animated: true, completion: nil)

let alert = SomeController()
let transition = EasyTransition()
transition.presentAnimateParams.damping = 0.3
alert.at.transition = transition
present(alert, animated: true, completion: nil)

class MainController: UIViewController {
    // First, hold your menu controller in your main controller
    var menuController = MenuController()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // second, initialize MenuTransition with presenting controller
        let transition = MenuTransition(from: navigationController)
        // third, set MenuTransition to your menuController
        menuController.at.transition = transition
    }
}

(self.at.transition as? MenuTransition)?.push(controller: NextViewController())

public class TrolleyTransition: AlertTransition {

    public override init(from controller: UIViewController?) {
        super.init(from: controller)
        duration = 0.5
    }
    
    public override func performPresentedTransition(presentingView: UIView, presentedView: UIView, context: UIViewControllerContextTransitioning) {
        presentedView.frame.origin.y = UIScreen.main.bounds.height
        
        UIView.animate(withDuration: duration/2, animations: {
            presentingView.layer.transform = self.firstTransform()
        }) { (complete) in
            UIView.animate(withDuration: self.duration/2, animations: {
                presentingView.layer.transform = self.secondTransform()
                presentedView.transform = CGAffineTransform(translationX: 0, y: -presentedView.frame.height)
            }, completion: { (complete) in
                context.completeTransition(complete)
            })
        }
    }
    
    public override func performDismissedTransition(presentingView: UIView, presentedView: UIView, context: UIViewControllerContextTransitioning) {
        
        UIView.animate(withDuration: duration/2, animations: {
            presentedView.transform = CGAffineTransform.identity
            presentingView.layer.transform = self.firstTransform()
        }) { (complete) in
            UIView.animate(withDuration: self.duration/2, animations: {
                presentingView.layer.transform = CATransform3DIdentity
            }, completion: { (complete) in
                context.completeTransition(complete)
            })
        }
    }
    
    private func firstTransform() -> CATransform3D {
        var form = CATransform3DIdentity
        form.m34 = 1.0 / -900
        form = CATransform3DScale(form, 0.9, 0.9, 1)
        form = CATransform3DRotate(form, 15.0 * CGFloat(Double.pi)/180.0, 1, 0, 0)
        form = CATransform3DTranslate(form, 0, 0, -100.0)
        return form
    }
    
    private func secondTransform() -> CATransform3D {
        var form = CATransform3DIdentity
        form.m34 = firstTransform().m34
        form = CATransform3DTranslate(form, 0, -20, 0)
        form = CATransform3DScale(form, 0.9, 0.9, 1)
        return form
    }
}

public override init(from controller: UIViewController? = nil) {
    super.init(from: controller)
    
    interactionTransitionType = EasyPercentDrivenTransition.self
    presentationControllerType = SomePresentationController.self
}