SetBottom = function (gameObject, value)
{
    gameObject.y = (value - gameObject.height) + (gameObject.height * gameObject.originY);

    return gameObject;
}
Positions the Game Object so that the bottom of its bounds aligns with the given coordinate.

@function Phaser.Display.Bounds.SetBottom
@since 3.0.0

@generic {Phaser.GameObjects.GameObject} G - [gameObject,$return]

@param {Phaser.GameObjects.GameObject} gameObject - The Game Object that will be re-positioned.
@param {number} value - The coordinate to position the Game Object bounds on.

@return {Phaser.GameObjects.GameObject} The Game Object that was positioned.