for row in range(9): for column in range(9): color = WHITE pygame.draw.rect(screen, color, [(MARGIN + WIDTH) * column + MARGIN, (MARGIN + HEIGHT) * row + MARGIN, WIDTH, HEIGHT]) # Set barrier cells impassea = [(2, 2), (3, 3), (4, 4), (5, 3), (6, 2), (3, 2), (4, 2), (5, 2), (2, 2)] for point in impassea: grid[point[0]][point[1]] = 1 # Get path based on barriers and A* agrid = Grid.AStarGraph(impassea) result = Grid.AStarSearch((0, 0), (7, 3), agrid) # Set the path we found for point in result: grid[point[0]][point[1]] = 2 # Draw the grid for row in range(9): for column in range(9): color = WHITE if grid[row][column] == 1: color = RED elif grid[row][column] == 2: color = GREEN pygame.draw.rect(screen, color, [(MARGIN + WIDTH) * column + MARGIN, (MARGIN + HEIGHT) * row + MARGIN, WIDTH, HEIGHT])