drawDebugPoint(x, y, debugText = '', color = '#f00') {
    this.drawCircle(x, y, 2, color, true, true, debugText);
  }
Draws a dubug dot at a given coordinate and adds text.

@param {Number} x The x coordinate.
@param {Number} y The y coordindate.
@param {String} [debugText=''] A string.
@param {String} [color='#f00'] A color in hex form.