IsInLayerBounds = function (tileX, tileY, layer)
{
    return (tileX >= 0 && tileX < layer.width && tileY >= 0 && tileY < layer.height);
}
Checks if the given tile coordinates are within the bounds of the layer.

@function Phaser.Tilemaps.Components.IsInLayerBounds
@since 3.0.0

@param {number} tileX - The x coordinate, in tiles, not pixels.
@param {number} tileY - The y coordinate, in tiles, not pixels.
@param {Phaser.Tilemaps.LayerData} layer - The Tilemap Layer to act upon.

@return {boolean} `true` if the tile coordinates are within the bounds of the layer, otherwise `false`.