Calculates interesting faces within the rectangular area specified (in tile coordinates) of the layer. Interesting faces are used internally for optimizing collisions against tiles. This method is mostly used internally.
The left most tile index (in tile coordinates) to use as the origin of the area.
The top most tile index (in tile coordinates) to use as the origin of the area.
How many tiles wide from the
How many tiles tall from the
The Tilemap Layer to act upon.