[Tutor] my newbie program

[alan.gauld@bt.com]

> class room:
>     def __init__(self):
>         self.desc=""
>         self.exits=[]
> 
> 
> room1=room()
> room2=room()
> room1.exits=[room2,0,0,0]
> room1.desc="a big room"
> room2.desc="an even bigger room"

You could simplify that by using default args to the init method:

class Room:  #capitalised class names is the convention.
    def __init__(self, desc="", exits=[])
        self.desc = desc
        self.exits = exits

room2 = Room("an even bigger room")
room1 = Room("a big room", [room2,0,0,0])

You need to watch the order to avoid using names of objects 
not yet created in the exi list but otherwise it saves effort....

> class Player:
      self.commandlist = ['look','n']
>     def __init__(self):
>         self.location=room1
>     def act(self):
>         cmd = raw_input('>')
          if cmd in self.commandlist:   # bit of a sanity check
>           if cmd == 'look':
>             print self.location.desc
>           if cmd == 'n':
>             if self.location.exits[0] != 0:
>                  self.location=self.location.exits[0]
>             else:
>                 print "you can't go that way"
           else: print "invalid command: ", cmd

> me = Player()
  while 1:
     me.act()
     if not map(lambda x: x != 0, me.location.exits):
        break

OK, the map() is maybe overkill... :-)
Otherwise it looks like it should work so far... What next?

Alan g.