draw rectangle on canvas

I'm trying to develop a ping pong game in Android where I will have two bats to hit the ball. I drew a bat on the canvas and it was placed at the far left of the screen. I need another bat on the far right of the screen, but every time the paddle is drawn on the far left. Can someone help me?

class gameui(context: Context, attrs: AttributeSet): View(context,attrs){
private val bluePaint = Paint().apply {
    color = Color.BLUE
    strokeWidth = 8f
}
var paddle1 = Rect()
var paddle2 = Rect()
var paint =  Paint()

init{

    val x = 50
    val y = 200
    val sideLength = 20


    paddle1 = Rect(x, y, sideLength, sideLength)
    paddle2 = Rect(x, y, sideLength, sideLength)



    paint = Paint()
    paint.color = Color.RED
}



override fun onDraw(canvas: Canvas?) {
    super.onDraw(canvas)
    canvas!!.drawRect(paddle1, paint);

}