update, need help with man.py generate_new_snack

gamefiles/man.py

@@ -1,7 +1,11 @@
 from retro.agent import ArrowKeyAgent
 #from retro.game import Game
 #from helpers import add, get_occupant
-
+from retro.game import Game
+from random import shuffle
+from snack import Snack
+width=25
+height=25
 
 direction_vectors = {
     "KEY_RIGHT": (1, 0),
@@ -25,7 +29,10 @@ class Man:
             vector = direction_vectors[keystroke.name]
             self.try_to_move(vector, game)
     
-    '''Checks if a space is avialable to move'''
+    '''Checks if a space is avialable to move. Also adds 1 point if the space
+    contains a snack and then removes the snack. Deducts 10 points if the 
+    space contains a mine. Checks that the score is not negative and if it 
+    is, ends the game.'''
     def try_to_move(self, vector, game):
         x,y = self.position
         vx,vy = vector
@@ -43,22 +50,39 @@ class Man:
                 if obstacle.snack:
                     game.state['Score'] += 1
                     game.remove_agent(agents[0])
-                    
+                    self.generate_new_snack()
                 else:
-                    game.state['Score'] -= 1
+                    game.state['Score'] -= 10
                     game.remove_agent(agents[0])
-            
+                    if game.state['Score'] <0:
+                        self.die(game)
+                    else:
+                        pass
             else:
                 self.position = future_position
 
+    '''Indicates what happens when the game is over.'''
     def die(self,game):
         game.state["message"] = "Game Over"
         self.color = "black"
         game.end()
 
-   
-    
+    def get_all_positions(self):
+        positions=[]
+        for i in range(width):
+            for j in range(height):
+                positions.append((i,j))
+        return positions
 
+    '''issue here, is_empty is not generating a coordinate positon,
+    but I am not sure why it is not'''
+    def generate_new_snack(self):
+        all_positions=self.get_all_positions()
+        shuffle(all_positions)
+        index =0
+        while Game.is_empty(all_positions[index]) == False:
+            index = index + 1
+        Snack(all_positions[index])
 '''
     def __init__(self, position):
         self.position = position