/*

 Copyright (C) 2018 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 Exposes game controller action button type functionality with screen-rendered buttons.

 */

import SpriteKit

class ControlOverlay: SKNode {

    let buttonMargin = CGFloat( 25 )

    var leftPad = PadOverlay()

    var rightPad = PadOverlay()

    var buttonA = ButtonOverlay("A")

    var buttonB = ButtonOverlay("B")

    init(frame: CGRect) {

        super.init()

        leftPad.position = CGPoint(x: CGFloat(20), y: CGFloat(40))

        addChild(leftPad)

        rightPad.position = CGPoint(x: CGFloat(frame.size.width - 20 - rightPad.size.width), y: CGFloat(40))

        addChild(rightPad)

        let buttonDistance = rightPad.size.height / CGFloat( 2 ) + buttonMargin + buttonA.size.height / CGFloat( 2 )

        let center = CGPoint( x: rightPad.position.x + rightPad.size.width / 2.0, y: rightPad.position.y + rightPad.size.height / 2.0 )

        let buttonAx = center.x - buttonDistance * CGFloat(cosf(Float.pi / 4.0)) - (buttonB.size.width / 2)

        let buttonAy = center.y + buttonDistance * CGFloat(sinf(Float.pi / 4.0)) - (buttonB.size.height / 2)

        buttonA.position = CGPoint(x: buttonAx, y: buttonAy)

        addChild(buttonA)

        let buttonBx = center.x - buttonDistance * CGFloat(cosf(Float.pi / 2.0)) - (buttonB.size.width / 2)

        let buttonBy = center.y + buttonDistance * CGFloat(sinf(Float.pi / 2.0)) - (buttonB.size.height / 2)

        buttonB.position = CGPoint(x: buttonBx, y: buttonBy)

        addChild(buttonB)

    }

    override init() {

        super.init()

    }

    required init?(coder aDecoder: NSCoder) {

        fatalError("init(coder:) has not been implemented")

    }

}