Why does my code not return the correct coordinates in the array when the method is called?

struct Point {

    let x: Int
    let y: Int

    ///Returns the sourounding pointds in range of
    ///the current one
    func points(inRange range:Int = 1) -> [Point] {
        var results = [Point]()

        let lowerBoundofXRange = x - range
        let upperBoundofXRange = x + range

        let lowerBoundOfYRange = y - range
        let upperBoundOfYRange = y + range

        for xCoordinate in lowerBoundofXRange...upperBoundofXRange {
            for yCoordiate in lowerBoundOfYRange...upperBoundOfYRange {
                let coordinatePoint = Point(x: xCoordinate, y: yCoordiate)
                results.append(coordiantePoint)
            }

        }

        return results

    }
}

let coordiantePoint = Point(x: 0, y: 0)

coordiantePoint.x
coordiantePoint.points()