Have two types for world: a regular world, and a dirty world, with
potential conflicts.

From a clean world, generate a dirty world by applying moves (in parallel).

From the dirty world, generate a clean world using a conflict resolving
projection.

Such a projection could involve bidding, bouncing the fishes off each other
when they collide, giving stochastic priority to some fishes, etc.
On Jun 9, 2014 10:26 AM, "O Frolovs" <ollie.frolovs.2012@my.bristol.ac.uk>
wrote:

> Hello
>
> I am trying to write a predator-prey simulator and I have hit the wall
> with functional design. I would appreciate any help or pointers to relevant
> literature.
>
> The simulator is that of a world populated with fish and sharks. It is a
> discrete-time multi-agent simulation and what I am struggling to think
> about is how to implement the illusion of parallelism in simulation. Since
> the problem is not specifically with OCaml (but the simulator is in OCaml),
> I have kept this email short and put all the details and the code on GitHub:
>
> "On the subject of Toroidal Planets, Sharks and Fish."
> https://gist.github.com/olliefr/fb26ca3a7645dae7e203
>
> It's only a hobby project, but it is of some interest to me, so I would
> really appreciate any advice.
>
> Best regards,
>
> Ollie
>