X-Git-Url: https://git.xandkar.net/?a=blobdiff_plain;f=polymorphic-life%2F001%2Fsrc%2Fpolymorphic_life.ml;h=1afd1fed708e4e00234eaf7e5b6520243bc12466;hb=63fe855dfac550cf84d839715edc4975a5d9a02b;hp=a667bc4b4a23c875d15965f52b41d11850d8e60a;hpb=4d49c95e96b6a688ecbc54bea64b810c9611b400;p=cellular-automata.git

diff --git a/polymorphic-life/001/src/polymorphic_life.ml b/polymorphic-life/001/src/polymorphic_life.ml
index a667bc4..1afd1fe 100644
--- a/polymorphic-life/001/src/polymorphic_life.ml
+++ b/polymorphic-life/001/src/polymorphic_life.ml
@@ -4,54 +4,119 @@ open Core.Std
 module type MATRIX = sig
   type 'a t
 
-  val create : rows:int -> cols:int -> data:'a -> 'a t
+  val create : rs:int -> ks:int -> data:'a -> 'a t
 
-  val get : 'a t -> row:int -> col:int -> 'a
+  val get : 'a t -> r:int -> k:int -> 'a
 
-  val set : 'a t -> row:int -> col:int -> data:'a -> unit
+  val map : 'a t -> f:('a -> 'b) -> 'b t
 
-  val map : 'a t -> f:(row:int -> col:int -> data:'a -> 'b) -> 'b t
+  val mapi : 'a t -> f:(r:int -> k:int -> data:'a -> 'b) -> 'b t
 
-  val iter : 'a t -> f:(row:int -> col:int -> data:'a -> unit) -> unit
+  val iter : 'a t -> f:(r:int -> k:int -> data:'a -> unit) -> unit
+
+  val print : 'a t -> to_string:('a -> string) -> unit
 end
 
 module Matrix : MATRIX = struct
   type 'a t = 'a array array
 
-  let create ~rows ~cols ~data =
-    Array.make_matrix ~dimx:rows ~dimy:cols data
+  let create ~rs ~ks ~data =
+    Array.make_matrix ~dimx:rs ~dimy:ks data
 
   let iter t ~f =
     Array.iteri t ~f:(
-      fun row cols ->
-        Array.iteri cols ~f:(
-          fun col data ->
-            f ~row ~col ~data
+      fun r ks ->
+        Array.iteri ks ~f:(
+          fun k data ->
+            f ~r ~k ~data
         )
     )
 
+  let print t ~to_string =
+    Array.iter t ~f:(
+      fun r ->
+        Array.iter r ~f:(fun x -> printf "%s" (to_string x));
+        print_newline ()
+    )
+
   let map t ~f =
+    Array.map t ~f:(Array.map ~f:(fun x -> f x))
+
+  let mapi t ~f =
     Array.mapi t ~f:(
-      fun row cols ->
-        Array.mapi cols ~f:(
-          fun col data ->
-            f ~row ~col ~data
+      fun r ks ->
+        Array.mapi ks ~f:(
+          fun k data ->
+            f ~r ~k ~data
         )
     )
 
-  let get t ~row ~col =
-    t.(row).(col)
+  let get t ~r ~k =
+    t.(r).(k)
+end
+
 
-  let set t ~row ~col ~data =
-    t.(row).(col) <- data
+module type CELL = sig
+  type t
+
+  val create : unit -> t
+
+  val to_string : t -> string
+
+  val state : t -> int
+
+  val react : t -> states:int list -> t
 end
 
 
-let main () =
-  let pool = Matrix.create ~rows:5 ~cols:5 ~data:() in
-  Matrix.iter pool ~f:(
-    fun ~row ~col ~data:() -> printf "R: %d, K: %d\n" row col
-  )
+module Conway : CELL = struct
+  type t = D | A
+
+  let of_int = function
+    | 0 -> D
+    | 1 -> A
+    | _ -> assert false
+
+  let to_int = function
+    | D -> 0
+    | A -> 1
+
+  let to_string = function
+    | D -> " "
+    | A -> "o"
+
+  let create () =
+    Random.int 2 |> of_int
+
+  let state = to_int
+
+  let react t ~states =
+    let live_neighbors = List.fold_left states ~init:0 ~f:(+) in
+    match t with
+    | A when live_neighbors < 2 -> D
+    | A when live_neighbors < 4 -> A
+    | A when live_neighbors > 3 -> D
+    | D when live_neighbors = 3 -> A
+    | A -> A
+    | D -> D
+end
+
+
+let main rs ks () =
+  Random.self_init ();
+  let grid = Matrix.create ~rs ~ks ~data:() |> Matrix.map ~f:Conway.create in
+  Matrix.print grid ~to_string:Conway.to_string
+
+
+let spec =
+  let summary = "Polymorphic Cellular Automata" in
+  let spec =
+    let open Command.Spec in
+    empty
+    +> flag "-rows" (optional_with_default 5 int) ~doc:"Height"
+    +> flag "-cols" (optional_with_default 5 int) ~doc:"Width"
+  in
+  Command.basic ~summary spec main
 
 
-let () = main ()
+let () = Command.run spec