GetMagnitude = function (point)
{
    return Math.sqrt((point.x * point.x) + (point.y * point.y));
}
Calculate the magnitude of the point, which equivalent to the length of the line from the origin to this point.

@function Phaser.Geom.Point.GetMagnitude
@since 3.0.0

@param {Phaser.Geom.Point} point - The point to calculate the magnitude for

@return {number} The resulting magnitude