CGPoint: Cannot call value of non-function type `[Float]`

Question

I am developing an app, which should draw points when is touch, in the location of touch and when I have got 2 or more points, it should connect these points and fill up the new object.

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    if(draw == true){

        for touch in touches {
            let location = touch.location(in: view)

            pointsX.append(Float(location.x))
            pointsY.append(Float(location.y))

            let touchIndicator = UIView(frame: CGRect(x: location.x - 10, y: location.y - 10, width: 20, height: 20))
            touchIndicator.alpha = 0.8
            touchIndicator.backgroundColor = UIColor.red
            touchIndicator.layer.cornerRadius = 10
            self.view.addSubview(touchIndicator)
            touchIndicators.append(touchIndicator)
        }

    }
}

Everytime i save the x and y coordinates in float type into array pointX and pointsY. But when i need to draw a line between 2 points, it tells me an error Cannot call value of non-function type [Float].

let squarePath = UIBezierPath()

    squarePath.move(to: CGPoint(x: pointsX(0), y: pointsY(0)))

    squarePath.addLine(to: CGPoint(x: 200, y: 100))
    squarePath.addLine(to: CGPoint(x: 200, y: 200))



    squarePath.close()

    let square = CAShapeLayer()
    square.path = squarePath.cgPath
    square.fillColor = UIColor.red.cgColor
    self.view.layer.addSublayer(square)

Is there any other solution, where can I save my CGPoints?

If I can ask for a code, that will be easier for me, I am not good in english, thank you.

Answer 1

Swift uses square brackets to index arrays, and you are using parentheses.

squarePath.move(to: CGPoint(x: pointsX[0], y: pointsY[0]))