[Haskell-cafe] Re: simulation in the haskell way

[Maurí­cio CA]

> ...) But for simulation kind-of problems, in which I think OO
> really fits the best, what's the haskell way to structure such problems? 
> I once thought maybe I can use the State monad to simulate objects. But it's
> really hard for me to implement, because I think State monad is used to 
> simulate a global shared state, is it right?
> 
> Then what's the best way to simulate private states or just instead how to
> solve simulation problems such as a physical engine using the haskell way?

A physical engine can be simulated using pure code, with a
function from timestep to state. (Of course, that doesn't hold
when you want to deal with user interaction.) I think there is no
general answer to your question. My sugestion is to describe an
example you would like to work with.

Maurício