# File lib/as_canvas.rb, line 73
  def mouse
    m = vec2($mx.quo(AS::SCREEN_W)*@w, (1.0 - $my.quo(AS::SCREEN_H))*@h)
    rot = @angle.deg2unit_vect
    return (m - vec2(@kx, @ky)).unrotate(rot)/@scale + @pos
  end