class MyPoint {
  float x, y; // members of class
  //Constructor
  MyPoint(float xin, float yin){
    x = xin;
    y = yin;
  }
  //Move
  void move(float xoff, float yoff){
    x += xoff;
    y += yoff;
  }
  //Rotate
  void rotate(float angle, MyPoint ref){
    float cosa, sina;
    cosa = cos(radians(angle));
    sina = sin(radians(angle));
    float newx = (x-ref.x) * cosa - (y-ref.y) * sina + ref.x;
    float newy = (y-ref.y) * cosa + (x-ref.x) * sina + ref.y;
    x = newx;
    y = newy;
  }
  //Scale
  void scale(float xs, float ys, MyPoint ref){
    x = (x-ref.x)*xs + ref.x;
    y = (y-ref.y)*ys + ref.y;
  }
}