Floor = function (rect)
{
    rect.x = Math.floor(rect.x);
    rect.y = Math.floor(rect.y);

    return rect;
}
Rounds down (floors) the top left X and Y coordinates of the given Rectangle to the largest integer less than or equal to them

@function Phaser.Geom.Rectangle.Floor
@since 3.0.0

@generic {Phaser.Geom.Rectangle} O - [rect,$return]

@param {Phaser.Geom.Rectangle} rect - The rectangle to floor the top left X and Y coordinates of

@return {Phaser.Geom.Rectangle} The rectangle that was passed to this function with its coordinates floored.