Add food

Randomised food drops added. The food appears elsewhere when the snakes head moves over it

An interesting way of doing things - having each piece of food as a perpetually moving object. I probably would have done things a different way, but it'll do fine for now. Thanks!

Fixed in trunk, revision 5: http://bazaar.launchpad.net/~joshbrown/snakes-game/trunk/revision/5

Fair enough, as far as I was aware the classic snakes had randomised food drops but this can always be changed. No problem.

Tom, what I meant was that a piece of food moving about of it's own accord after it's been eaten seems illogical to me, so I'd delete the piece of food, then create a new piece in a random location.

Your code, in itself, works fine, it's just the object-orientated illogicalness that I object to. But then again, I'm no programming expert so maybe OOP is supposed to be done your way.

Ah apologies, I misinterpreted, you're quite right. thanks for the edit.

Here's the more logical object-orienteered approach

Thanks for the patch Tom, we may as well remove the `update` function altogether.