StaggeredCullBounds = function (layer, camera)
{
    var tilemap = layer.tilemapLayer.tilemap;
    var tilemapLayer = layer.tilemapLayer;

    //  We need to use the tile sizes defined for the map as a whole, not the layer,
    //  in order to calculate the bounds correctly. As different sized tiles may be
    //  placed on the grid and we cannot trust layer.baseTileWidth to give us the true size.
    var tileW = Math.floor(tilemap.tileWidth * tilemapLayer.scaleX);
    var tileH = Math.floor(tilemap.tileHeight * tilemapLayer.scaleY);

    var boundsLeft = SnapFloor(camera.worldView.x - tilemapLayer.x, tileW, 0, true) - tilemapLayer.cullPaddingX;
    var boundsRight = SnapCeil(camera.worldView.right - tilemapLayer.x, tileW, 0, true) + tilemapLayer.cullPaddingX;

    var boundsTop = SnapFloor(camera.worldView.y - tilemapLayer.y, tileH / 2, 0, true) - tilemapLayer.cullPaddingY;
    var boundsBottom = SnapCeil(camera.worldView.bottom - tilemapLayer.y, tileH / 2, 0, true) + tilemapLayer.cullPaddingY;

    return {
        left: boundsLeft,
        right: boundsRight,
        top: boundsTop,
        bottom: boundsBottom
    };
}
Returns the bounds in the given layer that are within the camera's viewport.
This is used internally by the cull tiles function.

@function Phaser.Tilemaps.Components.StaggeredCullBounds
@since 3.50.0

@param {Phaser.Tilemaps.LayerData} layer - The Tilemap Layer to act upon.
@param {Phaser.Cameras.Scene2D.Camera} camera - The Camera to run the cull check against.

@return {object} An object containing the `left`, `right`, `top` and `bottom` bounds.