Re: [pygame] Subtle Memory Bug

[Kris Schnee <kschnee@xxxxxxxxxx>]

Bob Ippolito wrote:
> It's probably not the uniqueness of ID numbers that's breaking his code, 
> it's the fact that he has two different generations in the same data 
> structure. That's simply not how you should do what he's trying to do.

So, maybe have a tribes_this_turn dictionary and a next_turn_tribes 
dictionary, with tribes getting copied into the next only if they 
haven't been flagged as "gone?" It'd be tricky because what if tribes A 
and B merge one turn, and in the same turn C tries to interact with 
them? I guess the tribe that A/B become wouldn't exist till next turn, 
but then there's the possibility that C will attack and destroy A on the 
same turn that A has been absorbed into B.

Re: ID numbers, I had set it up so that no new tribe gets an ID number 
that's currently in use... but if I understand correctly:
-The current value of self.alltribes always reflects changes made to the 
game world, but
-The current set of values currently being used in the loop ("for tribe 
in self.alltribes.values():") isn't affected by those changes because 
it's evaluated only when the loop starts.

Kris