Creates an array for generating an autotile values and correct tile positioning as well.

A more detailed usage is in main.odin.

make sure to imnport the package as well as:

import auto "autotile"

You simply initialise it first with width, height.

ypu simply pass in your level, each unique tile key and type of tileset. Which can be choosed from wang_corner, wang_edge and blob. each has an example image you can use. this will return an array of the new grid with layers to allow for overlapping. You can then pass the value into select_tile_type which returns x and y position for a tileset which is based on the locations seen in the example images.

grid_width := 50
grid_height := 50
  
grid := gen_map(grid_width,grid_height)
defer delete(grid)

auto.initialise_bit_level(grid_width, grid_height)    
new_grid := auto.create_bitmask_layered(&grid, []int{0, 1, 2})

tile_locations := [3][2]int{{4,0},{0,0},{0,4}, .wang_corner}

for x in 0..<grid_width {
  for y in 0..<grid_height {
    size := y * grid_width + x                
    
    
    for tile in new_grid[size] {
        value := tile.key
        autotile := tile.bit
        pos := auto.select_tile_type(autotile, .wang_corner)
        pos += tile_locations[value]
        // your logic for rendering the tile
    }
  }
}

art used from opengameart: https://opengameart.org/content/lpc-terrains