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 tileX index the area will be.
How many tiles tall from the tileY index the area will be.
An array of indexes to randomly draw from during randomization.
The Tilemap Layer to act upon.
Randomizes the indexes of a rectangular region of tiles (in tile coordinates) within the specified layer. Each tile will receive a new index. If an array of indexes is passed in, then those will be used for randomly assigning new tile indexes. If an array is not provided, the indexes found within the region (excluding -1) will be used for randomly assigning new tile indexes. This method only modifies tile indexes and does not change collision information.