- let grid =
- Matrix.mapi grid ~f:(fun point ~data:cell ->
- let neighbors = Matrix.get_neighbors grid point in
- Conway.react cell ~states:(List.map neighbors ~f:Conway.state)
- )
- in
- Time.pause opt.interval;
- loop opt grid
+ type t = { grid : cell Matrix.t
+ ; interval : Time.Span.t
+ ; bar : string
+ }
+
+ let create ~rows:rs ~columns:ks ~interval ~rules =
+ let n = List.length rules in
+ let i = Random.int n in
+ let init () =
+ let rule = List.nth_exn rules i in
+ let module Rule = (val rule : RULE) in
+ { rule
+ ; data = Rule.create ()
+ }
+ in
+ { grid = Matrix.map ~f:init (Matrix.create ~rs ~ks ())
+ ; interval = Time.Span.of_float interval
+ ; bar = String.make ks '-'
+ }
+
+ let cell_to_string cell =
+ cell.data.Cell.pheno
+
+ let print t =
+ print_endline t.bar;
+ Matrix.print t.grid ~to_string:cell_to_string;
+ print_endline t.bar
+
+ let next t =
+ let grid =
+ Matrix.mapi t.grid ~f:(
+ fun point {rule; data} ->
+ let module Rule = (val rule : RULE) in
+ let neighbors = Matrix.get_neighbors t.grid point in
+ let data =
+ Rule.transition
+ ~state:data.Cell.state
+ ~inputs:(List.map neighbors ~f:(fun cell -> cell.data.Cell.msg))
+ in
+ {rule; data}
+ )
+ in
+ {t with grid}
+
+ let rec loop t =
+ print t;
+ Time.pause t.interval;
+ loop (next t)
+end