class Test {
  function : Main(args : String[]) ~ Nil {
    Vec2->New(5, 7)->Add(Vec2->New(2, 3))->ToString()->PrintLine();
    Vec2->New(5, 7)->Sub(Vec2->New(2, 3))->ToString()->PrintLine();
    Vec2->New(5, 7)->Mult(11)->ToString()->PrintLine();
    Vec2->New(5, 7)->Div(2)->ToString()->PrintLine();
  }
}

class Vec2 {
  @x : Float;
  @y : Float;

  New(x : Float, y : Float) {
    @x := x;
    @y := y;
  }

  method : GetX() ~ Float {
    return @x;
  }

  method : GetY() ~ Float {
    return @y;
  }

  method : public : Add(v : Vec2) ~ Vec2 {
    return Vec2->New(@x + v->GetX(), @y + v->GetY());
  }

  method : public : Sub(v : Vec2) ~ Vec2 {
    return Vec2->New(@x - v->GetX(), @y - v->GetY());
  }

  method : public : Div(val : Float) ~ Vec2 {
    return Vec2->New(@x / val, @y / val);
  }

  method : public : Mult(val : Float) ~ Vec2 {
    return Vec2->New(@x * val, @y * val);
  }

  method : public : ToString() ~ String {
    return "[{$@x}, {$@y}]";
  }
}