Contains = function (ellipse, x, y)
{
    if (ellipse.width <= 0 || ellipse.height <= 0)
    {
        return false;
    }

    //  Normalize the coords to an ellipse with center 0,0 and a radius of 0.5
    var normx = ((x - ellipse.x) / ellipse.width);
    var normy = ((y - ellipse.y) / ellipse.height);

    normx *= normx;
    normy *= normy;

    return (normx + normy < 0.25);
}
Check to see if the Ellipse contains the given x / y coordinates.

@function Phaser.Geom.Ellipse.Contains
@since 3.0.0

@param {Phaser.Geom.Ellipse} ellipse - The Ellipse to check.
@param {number} x - The x coordinate to check within the ellipse.
@param {number} y - The y coordinate to check within the ellipse.

@return {boolean} True if the coordinates are within the ellipse, otherwise false.