Boulder now ignores player and vice versa.

robotgame/worldobject.py

@@ -41,6 +41,8 @@ class WorldObject(object):
         self.holding = None
         self.holder = None
 
+        self.ignore_list = []
+
         self.is_currently_opaque = True
 
         if hasattr(self, 'img'):
@@ -73,7 +75,8 @@ class WorldObject(object):
                 if (obj.x == self.x + move_x * self.tile_x
                     and obj.y == self.y + move_y * self.tile_y
                     and obj is not self and obj is not self.holder
-                    and obj is not self.holding and obj.blocking):
+                    and obj is not self.holding and obj.blocking
+                    and type(obj) not in self.ignore_list):
                     return False
             return True
         return False