Some updates

.gitignore

@@ -1,2 +1,3 @@
 __pycache__
 *.pyc
+ais

play.py

@@ -8,6 +8,8 @@ from tron.game import Game, PositionPlayer
 from tron.window import Window
 from tron.player import Direction, KeyboardPlayer, Mode
 
+from ais.wallavoider import Ai
+
 # This script shows how to create a game with human players and play it interactively.
 # It shows how to create the game, to setup interactive controls for users, and
 # to run the game while rendering it on a window with a reasonnable framerate.
@@ -29,7 +31,7 @@ def main():
         # default direction that will be to the right, and that will use the Z,
         # Q, S and D keys.
         # The last array defines the initial position of the player.
-        PositionPlayer(1, KeyboardPlayer(Direction.RIGHT, Mode.ZQSD), [0, 0]),
+        PositionPlayer(1, Ai(), [0, 0]),
 
         # We create a second player that will use the arrow keys.
         PositionPlayer(2, KeyboardPlayer(Direction.LEFT, Mode.ARROWS), [width - 1, height - 1]),

tron/player.py

@@ -34,6 +34,19 @@ class Player(object):
         """
         return '/'.join(self.__module__.split('.')[:-1]) + '/' + name
 
+    def next_position(self, current_position, direction):
+        """
+        Computes the next position if the player would go on towards a specific
+        direction.
+        """
+        if direction == Direction.UP:
+            return (current_position[0] - 1, current_position[1])
+        if direction == Direction.RIGHT:
+            return (current_position[0], current_position[1] + 1)
+        if direction == Direction.DOWN:
+            return (current_position[0] + 1, current_position[1])
+        if direction == Direction.LEFT:
+            return (current_position[0], current_position[1] - 1)
 
     def next_position_and_direction(self, current_position, id, map):
         """
@@ -41,14 +54,7 @@ class Player(object):
         depending on the current position.
         """
         direction = self.action(map, id)
-        if direction == Direction.UP:
-            return ((current_position[0] - 1, current_position[1]), direction)
-        if direction == Direction.RIGHT:
-            return ((current_position[0], current_position[1] + 1), direction)
-        if direction == Direction.DOWN:
-            return ((current_position[0] + 1, current_position[1]), direction)
-        if direction == Direction.LEFT:
-            return ((current_position[0], current_position[1] - 1), direction)
+        return (self.next_position(current_position, direction), direction)
 
     def action(self, map, id):
         """