[Freeciv-Dev] Re: The implementation if freeciv ID numbers

[Thue Janus Kristensen <thue@xxxxxxx>]

On Sun, 19 Mar 2000, David Pfitzner wrote:
> Thue Janus Kristensen wrote:
> 
> > Currently freeciv has an "unsigned char used_ids[8192];" bitvector with a 
> > bit
> > per 65536 possible id number. Every time a unit or city is
> > allocated/deallocated the id bit is set/reset with with alloc_id/dealloc_id.
> 
> Is this actually used though?  It looked pretty crufty to me, but I
> never got around to looking at it though.  My understanding is that
> the current code _doesn't_ actually re-use ids at all (despite the
> above bitvector).

They are reused.

> As you alluded, various things become a lot simpler when ids are 
> never re-used (eg, no possibility of confusion between server and 
> client with lag, etc), so I would suggest we go with non-reused, 
> 32-bit ids.

-Thue