ocaml/otherlibs/labltk/examples_camltk/taquin.ml

147 lines
4.8 KiB
OCaml

(***********************************************************************)
(* *)
(* Caml examples *)
(* *)
(* Pierre Weis *)
(* *)
(* INRIA Rocquencourt *)
(* *)
(* Copyright (c) 1994-2011, INRIA *)
(* All rights reserved. *)
(* *)
(* Distributed under the BSD license. *)
(* *)
(***********************************************************************)
(* $Id: taquin.ml,v 1.4 2011-08-08 19:31:17 weis Exp $ *)
open Camltk;;
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 (Pixels tx); Height (Pixels ty)] in
Imagephoto.copy pièce img
[ImgFrom(x * tx, y * ty, (x + 1) * tx, (y + 1) * ty)];
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 c
(Pixels (!trou_x * tx)) (Pixels (!trou_y * ty))
(Pixels tx) (Pixels ty) [] 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 c
(Pixels (x * tx)) (Pixels (y * ty))
[ImagePhoto pièce; Anchor NW; Tags [Tag "pièce"]];
p := reste
done
done;
let déplacer x y =
let pièce = taquin.(x).(y) in
Canvas.coords_set c pièce
[Pixels (!trou_x * tx); Pixels(!trou_y * ty)];
Canvas.coords_set c trou
[Pixels (x * tx); Pixels(y * ty); Pixels tx; Pixels 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 c (Tag "pièce") [[], ButtonPress]
(BindSet ([Ev_MouseX; Ev_MouseY], jouer));;
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 parent [TextWidth lwidth; TextHeight lnum] in
List.iter
(fun line ->
Text.insert txtw (TextIndex (End, [])) line [];
Text.insert txtw (TextIndex (End, [])) "\n" [])
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 help_frame [Text "Ok"; Command quit_help] in
pack [help_txtw; ok_button ] [Side Side_Bottom];
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 fp
[Width(Pixels(Imagephoto.width img));
Height(Pixels(Imagephoto.height img))] 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 fp [Text "Quit"; Command closeTk] 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 fp [Text "Help"; Command (give_help fp help_lines)] in
pack [quit; help] [Side Side_Left; Fill Fill_X];
mainLoop ()
;;
if !Sys.interactive then () else begin taquin "joconde.gif" 3 5; exit 0 end;;