regenerates mines and snacks

may still try to add more difficulty and update any docstrings and old commented code

gamefiles/nav_game.py

@@ -1,7 +1,6 @@
 from retro.game import Game
 from board import Board
-
-from score import num_mines
+from minecounter import num_mines
 
 width = 25
 height = 25
@@ -14,6 +13,6 @@ board = Board(width,height,num_snacks,num_mines)
 game = Game(
     board.get_agents(num_snacks, num_mines),
       state,
-      board_size = (width, height)
+      board_size = (width, height),debug=True
 )
 game.play()