ocaml/otherlibs/labltk/examples_labltk/taquin.ml

144 lines
4.8 KiB
OCaml

(***********************************************************************)
(* *)
(* MLTk, Tcl/Tk interface of OCaml *)
(* *)
(* Francois Rouaix, Francois Pessaux, Jun Furuse and Pierre Weis *)
(* projet Cristal, INRIA Rocquencourt *)
(* Jacques Garrigue, Kyoto University RIMS *)
(* *)
(* Copyright 2002 Institut National de Recherche en Informatique et *)
(* en Automatique and Kyoto University. All rights reserved. *)
(* This file is distributed under the terms of the GNU Library *)
(* General Public License, with the special exception on linking *)
(* described in file LICENSE found in the OCaml source tree. *)
(* *)
(***********************************************************************)
(* $Id$ *)
open Tk;;
let découpe_image img nx ny =
let l = Imagephoto.width img
and h = Imagephoto.height img in
let tx = l / nx and ty = h / ny in
let pièces = ref [] in
for x = 0 to nx - 1 do
for y = 0 to ny - 1 do
let pièce = Imagephoto.create ~width:tx ~height:ty () in
Imagephoto.copy ~src:img
~src_area:(x * tx, y * ty, (x + 1) * tx, (y + 1) * ty) pièce;
pièces := pièce :: !pièces
done
done;
(tx, ty, List.tl !pièces);;
let remplir_taquin c nx ny tx ty pièces =
let trou_x = ref (nx - 1)
and trou_y = ref (ny - 1) in
let trou =
Canvas.create_rectangle
~x1:(!trou_x * tx) ~y1:(!trou_y * ty) ~x2:tx ~y2:ty c in
let taquin = Array.make_matrix nx ny trou in
let p = ref pièces in
for x = 0 to nx - 1 do
for y = 0 to ny - 1 do
match !p with
| [] -> ()
| pièce :: reste ->
taquin.(x).(y) <-
Canvas.create_image
~x:(x * tx) ~y:(y * ty)
~image:pièce ~anchor:`Nw ~tags:["pièce"] c;
p := reste
done
done;
let déplacer x y =
let pièce = taquin.(x).(y) in
Canvas.coords_set c pièce
~xys:[!trou_x * tx, !trou_y * ty];
Canvas.coords_set c trou
~xys:[x * tx, y * ty; tx, ty];
taquin.(!trou_x).(!trou_y) <- pièce;
taquin.(x).(y) <- trou;
trou_x := x; trou_y := y in
let jouer ei =
let x = ei.ev_MouseX / tx and y = ei.ev_MouseY / ty in
if x = !trou_x && (y = !trou_y - 1 || y = !trou_y + 1)
|| y = !trou_y && (x = !trou_x - 1 || x = !trou_x + 1)
then déplacer x y in
Canvas.bind ~events:[`ButtonPress]
~fields:[`MouseX; `MouseY] ~action:jouer c (`Tag "pièce");;
let rec permutation = function
| [] -> []
| l -> let n = Random.int (List.length l) in
let (élément, reste) = partage l n in
élément :: permutation reste
and partage l n =
match l with
| [] -> failwith "partage"
| tête :: reste ->
if n = 0 then (tête, reste) else
let (élément, reste') = partage reste (n - 1) in
(élément, tête :: reste');;
let create_filled_text parent lines =
let lnum = List.length lines
and lwidth =
List.fold_right
(fun line max ->
let l = String.length line in
if l > max then l else max)
lines 1 in
let txtw = Text.create ~width:lwidth ~height:lnum parent in
List.iter
(fun line ->
Text.insert ~index:(`End, []) ~text:line txtw;
Text.insert ~index:(`End, []) ~text:"\n" txtw)
lines;
txtw;;
let give_help parent lines () =
let help_window = Toplevel.create parent in
Wm.title_set help_window "Help";
let help_frame = Frame.create help_window in
let help_txtw = create_filled_text help_frame lines in
let quit_help () = destroy help_window in
let ok_button = Button.create ~text:"Ok" ~command:quit_help help_frame in
pack ~side:`Bottom [help_txtw];
pack ~side:`Bottom [ok_button ];
pack [help_frame];;
let taquin nom_fichier nx ny =
let fp = openTk () in
Wm.title_set fp "Taquin";
let img = Imagephoto.create ~file:nom_fichier () in
let c =
Canvas.create ~background:`Black
~width:(Imagephoto.width img)
~height:(Imagephoto.height img) fp in
let (tx, ty, pièces) = découpe_image img nx ny in
remplir_taquin c nx ny tx ty (permutation pièces);
pack [c];
let quit = Button.create ~text:"Quit" ~command:closeTk fp in
let help_lines =
["Pour jouer, cliquer sur une des pièces";
"entourant le trou";
"";
"To play, click on a part around the hole"] in
let help =
Button.create ~text:"Help" ~command:(give_help fp help_lines) fp in
pack ~side:`Left ~fill:`X [quit] ;
pack ~side:`Left ~fill:`X [help] ;
mainLoop ();;
if !Sys.interactive then () else
begin taquin "Lambda2.back.gif" 4 4; exit 0 end;;