Normalize = function (angle)
{
    angle = angle % (2 * Math.PI);

    if (angle >= 0)
    {
        return angle;
    }
    else
    {
        return angle + 2 * Math.PI;
    }
}
Normalize an angle to the [0, 2pi] range.

@function Phaser.Math.Angle.Normalize
@since 3.0.0

@param {number} angle - The angle to normalize, in radians.

@return {number} The normalized angle, in radians.