fillEllipse(x, y, w, h) {
		this.strokeEllipse(x, y, w, h, true);
	}
Fill an ellipse at the specified coordinates with given radius
@param {number} x - ellipse center point x-axis
@param {number} y - ellipse center point y-axis
@param {number} w - horizontal radius of the ellipse
@param {number} h - vertical radius of the ellipse