WrapInRectangle = function (items, rect, padding)
{
    if (padding === undefined)
    {
        padding = 0;
    }

    for (var i = 0; i < items.length; i++)
    {
        var item = items[i];

        item.x = Wrap(item.x, rect.left - padding, rect.right + padding);
        item.y = Wrap(item.y, rect.top - padding, rect.bottom + padding);
    }

    return items;
}
Iterates through the given array and makes sure that each objects x and y
properties are wrapped to keep them contained within the given Rectangles
area.

@function Phaser.Actions.WrapInRectangle
@since 3.0.0
@see Phaser.Math.Wrap

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

@param {(array|Phaser.GameObjects.GameObject[])} items - An array of Game Objects. The contents of this array are updated by this Action.
@param {Phaser.Geom.Rectangle} rect - The rectangle which the objects will be wrapped to remain within.
@param {number} [padding=0] - An amount added to each side of the rectangle during the operation.

@return {(array|Phaser.GameObjects.GameObject[])} The array of Game Objects that was passed to this Action.