708 lines
17 KiB
OCaml
708 lines
17 KiB
OCaml
(*************************************************************************)
|
|
(* *)
|
|
(* Objective Caml LablTk library *)
|
|
(* *)
|
|
(* Jun Furuse, projet Cristal, INRIA Rocquencourt *)
|
|
(* Jacques Garrigue, Kyoto University RIMS *)
|
|
(* *)
|
|
(* Copyright 1999 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. *)
|
|
(* *)
|
|
(*************************************************************************)
|
|
|
|
(* $Id$ *)
|
|
|
|
(* A Tetris game for LablTk *)
|
|
(* written by Jun P. Furuse *)
|
|
|
|
open Tk
|
|
|
|
exception Done
|
|
|
|
type falling_block = {
|
|
mutable pattern: int array list;
|
|
mutable bcolor: int;
|
|
mutable x: int;
|
|
mutable y: int;
|
|
mutable d: int;
|
|
mutable alive: bool
|
|
}
|
|
|
|
let stop_a_bit = 300
|
|
|
|
let field_width = 10
|
|
let field_height = 20
|
|
|
|
let colors = [|
|
|
`Color "red";
|
|
`Color "yellow";
|
|
|
|
`Color "blue";
|
|
`Color "orange";
|
|
|
|
`Color "magenta";
|
|
`Color "green";
|
|
|
|
`Color "cyan"
|
|
|]
|
|
|
|
(* Put here your favorite image files *)
|
|
let backgrounds = [
|
|
"Lambda2.back.gif"
|
|
]
|
|
|
|
(* blocks *)
|
|
let block_size = 16
|
|
let cell_border = 2
|
|
|
|
let blocks = [
|
|
[ [|"0000";
|
|
"0000";
|
|
"1111";
|
|
"0000" |];
|
|
|
|
[|"0010";
|
|
"0010";
|
|
"0010";
|
|
"0010" |];
|
|
|
|
[|"0000";
|
|
"0000";
|
|
"1111";
|
|
"0000" |];
|
|
|
|
[|"0010";
|
|
"0010";
|
|
"0010";
|
|
"0010" |] ];
|
|
|
|
[ [|"0000";
|
|
"0110";
|
|
"0110";
|
|
"0000" |];
|
|
|
|
[|"0000";
|
|
"0110";
|
|
"0110";
|
|
"0000" |];
|
|
|
|
[|"0000";
|
|
"0110";
|
|
"0110";
|
|
"0000" |];
|
|
|
|
[|"0000";
|
|
"0110";
|
|
"0110";
|
|
"0000" |] ];
|
|
|
|
[ [|"0000";
|
|
"0111";
|
|
"0100";
|
|
"0000" |];
|
|
|
|
[|"0000";
|
|
"0110";
|
|
"0010";
|
|
"0010" |];
|
|
|
|
[|"0000";
|
|
"0010";
|
|
"1110";
|
|
"0000" |];
|
|
|
|
[|"0100";
|
|
"0100";
|
|
"0110";
|
|
"0000" |] ];
|
|
|
|
[ [|"0000";
|
|
"0100";
|
|
"0111";
|
|
"0000" |];
|
|
|
|
[|"0000";
|
|
"0110";
|
|
"0100";
|
|
"0100" |];
|
|
|
|
[|"0000";
|
|
"1110";
|
|
"0010";
|
|
"0000" |];
|
|
|
|
[|"0010";
|
|
"0010";
|
|
"0110";
|
|
"0000" |] ];
|
|
|
|
[ [|"0000";
|
|
"1100";
|
|
"0110";
|
|
"0000" |];
|
|
|
|
[|"0010";
|
|
"0110";
|
|
"0100";
|
|
"0000" |];
|
|
|
|
[|"0000";
|
|
"1100";
|
|
"0110";
|
|
"0000" |];
|
|
|
|
[|"0010";
|
|
"0110";
|
|
"0100";
|
|
"0000" |] ];
|
|
|
|
[ [|"0000";
|
|
"0011";
|
|
"0110";
|
|
"0000" |];
|
|
|
|
[|"0100";
|
|
"0110";
|
|
"0010";
|
|
"0000" |];
|
|
|
|
[|"0000";
|
|
"0011";
|
|
"0110";
|
|
"0000" |];
|
|
|
|
[|"0000";
|
|
"0100";
|
|
"0110";
|
|
"0010" |] ];
|
|
|
|
[ [|"0000";
|
|
"0000";
|
|
"1110";
|
|
"0100" |];
|
|
|
|
[|"0000";
|
|
"0100";
|
|
"1100";
|
|
"0100" |];
|
|
|
|
[|"0000";
|
|
"0100";
|
|
"1110";
|
|
"0000" |];
|
|
|
|
[|"0000";
|
|
"0100";
|
|
"0110";
|
|
"0100" |] ]
|
|
|
|
]
|
|
|
|
let line_empty = int_of_string "0b1110000000000111"
|
|
let line_full = int_of_string "0b1111111111111111"
|
|
|
|
let decode_block dvec =
|
|
let btoi d = int_of_string ("0b"^d) in
|
|
Array.map fun:btoi dvec
|
|
|
|
class cell t1 t2 t3 :canvas :x :y = object
|
|
val mutable color = 0
|
|
method get = color
|
|
method set color:col =
|
|
if color = col then () else
|
|
if color <> 0 & col = 0 then begin
|
|
Canvas.move canvas tag: t1
|
|
x:(- block_size * (x + 1) -10 - cell_border * 2)
|
|
y:(- block_size * (y + 1) -10 - cell_border * 2);
|
|
Canvas.move canvas tag: t2
|
|
x:(- block_size * (x + 1) -10 - cell_border * 2)
|
|
y:(- block_size * (y + 1) -10 - cell_border * 2);
|
|
Canvas.move canvas tag: t3
|
|
x:(- block_size * (x + 1) -10 - cell_border * 2)
|
|
y:(- block_size * (y + 1) -10 - cell_border * 2)
|
|
end else begin
|
|
Canvas.configure_rectangle canvas tag: t2
|
|
fill: colors.(col - 1)
|
|
outline: colors.(col - 1);
|
|
Canvas.configure_rectangle canvas tag: t1
|
|
fill: `Black
|
|
outline: `Black;
|
|
Canvas.configure_rectangle canvas tag: t3
|
|
fill: (`Color "light gray")
|
|
outline: (`Color "light gray");
|
|
if color = 0 & col <> 0 then begin
|
|
Canvas.move canvas tag: t1
|
|
x: (block_size * (x+1)+10+ cell_border*2)
|
|
y: (block_size * (y+1)+10+ cell_border*2);
|
|
Canvas.move canvas tag: t2
|
|
x: (block_size * (x+1)+10+ cell_border*2)
|
|
y: (block_size * (y+1)+10+ cell_border*2);
|
|
Canvas.move canvas tag: t3
|
|
x: (block_size * (x+1)+10+ cell_border*2)
|
|
y: (block_size * (y+1)+10+ cell_border*2)
|
|
end
|
|
end;
|
|
color <- col
|
|
end
|
|
|
|
let cell_get (c, cf) x y = cf.(y).(x) #get
|
|
|
|
let cell_set (c, cf) :x :y :color =
|
|
if x >= 0 & y >= 0 & Array.length cf > y & Array.length cf.(y) > x then
|
|
let cur = cf.(y).(x) in
|
|
if cur#get = color then () else cur#set :color
|
|
|
|
let create_base_matrix :cols :rows =
|
|
let m = Array.create_matrix dimx:rows dimy:cols (0,0) in
|
|
for x = 0 to cols - 1 do for y = 0 to rows - 1 do
|
|
m.(y).(x) <- (x,y)
|
|
done done;
|
|
m
|
|
|
|
let init fw =
|
|
let scorev = Textvariable.create ()
|
|
and linev = Textvariable.create ()
|
|
and levv = Textvariable.create ()
|
|
and namev = Textvariable.create ()
|
|
in
|
|
let f = Frame.create fw borderwidth: 2 in
|
|
let c = Canvas.create f width: (block_size * 10)
|
|
height: (block_size * 20)
|
|
borderwidth: cell_border
|
|
relief: `Sunken
|
|
background: `Black
|
|
and r = Frame.create f
|
|
and r' = Frame.create f in
|
|
|
|
let nl = Label.create r text: "Next" font: "variable" in
|
|
let nc = Canvas.create r width: (block_size * 4)
|
|
height: (block_size * 4)
|
|
borderwidth: cell_border
|
|
relief: `Sunken
|
|
background: `Black in
|
|
let scl = Label.create r text: "Score" font: "variable" in
|
|
let sc = Label.create r textvariable: scorev font: "variable" in
|
|
let lnl = Label.create r text: "Lines" font: "variable" in
|
|
let ln = Label.create r textvariable: linev font: "variable" in
|
|
let levl = Label.create r text: "Level" font: "variable" in
|
|
let lev = Label.create r textvariable: levv font: "variable" in
|
|
let newg = Button.create r text: "New Game" font: "variable" in
|
|
|
|
pack [f];
|
|
pack [coe c; coe r; coe r'] side: `Left fill: `Y;
|
|
pack [coe nl; coe nc] side: `Top;
|
|
pack [coe scl; coe sc; coe lnl; coe ln; coe levl; coe lev; coe newg]
|
|
side: `Top;
|
|
|
|
let cells_src = create_base_matrix cols:field_width rows:field_height in
|
|
let cells =
|
|
Array.map cells_src fun:
|
|
(Array.map fun:
|
|
begin fun (x,y) ->
|
|
let t1 =
|
|
Canvas.create_rectangle c
|
|
x1:(-block_size - 8) y1:(-block_size - 8)
|
|
x2:(-9) y2:(-9)
|
|
and t2 =
|
|
Canvas.create_rectangle c
|
|
x1:(-block_size - 10) y1:(-block_size - 10)
|
|
x2:(-11) y2:(-11)
|
|
and t3 =
|
|
Canvas.create_rectangle c
|
|
x1:(-block_size - 12) y1:(-block_size - 12)
|
|
x2:(-13) y2:(-13)
|
|
in
|
|
Canvas.raise c tag: t1;
|
|
Canvas.raise c tag: t2;
|
|
Canvas.lower c tag: t3;
|
|
new cell canvas:c :x :y t1 t2 t3
|
|
end)
|
|
in
|
|
let nexts_src = create_base_matrix cols:4 rows:4 in
|
|
let nexts =
|
|
Array.map nexts_src fun:
|
|
(Array.map fun:
|
|
begin fun (x,y) ->
|
|
let t1 =
|
|
Canvas.create_rectangle nc
|
|
x1:(-block_size - 8) y1:(-block_size - 8)
|
|
x2:(-9) y2:(-9)
|
|
and t2 =
|
|
Canvas.create_rectangle nc
|
|
x1:(-block_size - 10) y1:(-block_size - 10)
|
|
x2:(-11) y2:(-11)
|
|
and t3 =
|
|
Canvas.create_rectangle nc
|
|
x1:(-block_size - 12) y1:(-block_size - 12)
|
|
x2:(-13) y2:(-13)
|
|
in
|
|
Canvas.raise nc tag: t1;
|
|
Canvas.raise nc tag: t2;
|
|
Canvas.lower nc tag: t3;
|
|
new cell canvas:nc :x :y t1 t2 t3
|
|
end)
|
|
in
|
|
let game_over () = ()
|
|
in
|
|
(* What a mess ! *)
|
|
[ coe f; coe c; coe r; coe nl; coe nc; coe scl; coe sc; coe levl; coe lev;
|
|
coe lnl; coe ln ],
|
|
newg, (c, cells), (nc, nexts), scorev, linev, levv, game_over
|
|
|
|
|
|
let draw_block field :color :block :x :y =
|
|
for iy = 0 to 3 do
|
|
let base = ref 1 in
|
|
let xd = block.(iy) in
|
|
for ix = 0 to 3 do
|
|
if xd land !base <> 0 then
|
|
cell_set field x:(ix + x) y:(iy + y) :color;
|
|
base := !base lsl 1
|
|
done
|
|
done
|
|
|
|
let timer_ref = (ref None : Timer.t option ref)
|
|
(* I know, this should be timer ref, but I'm not sure what should be
|
|
the initial value ... *)
|
|
|
|
let remove_timer () =
|
|
match !timer_ref with
|
|
None -> ()
|
|
| Some t -> Timer.remove t (* ; prerr_endline "removed!" *)
|
|
|
|
let do_after ms:milli do:f =
|
|
timer_ref := Some (Timer.add ms: milli callback: f)
|
|
|
|
let copy_block c =
|
|
{ pattern= !c.pattern;
|
|
bcolor= !c.bcolor;
|
|
x= !c.x;
|
|
y= !c.y;
|
|
d= !c.d;
|
|
alive= !c.alive }
|
|
|
|
let _ =
|
|
let top = openTk () in
|
|
let lb = Label.create top
|
|
and fw = Frame.create top
|
|
in
|
|
let set_message s = Label.configure lb text:s in
|
|
pack [coe lb; coe fw] side: `Top;
|
|
let score = ref 0 in
|
|
let line = ref 0 in
|
|
let level = ref 0 in
|
|
let time = ref 1000 in
|
|
let blocks = List.map fun:(List.map fun:decode_block) blocks in
|
|
let field = Array.create len:26 0 in
|
|
let widgets, button, cell_field, next_field, scorev, linev, levv, game_over
|
|
= init fw in
|
|
let canvas = fst cell_field in
|
|
|
|
let init_field () =
|
|
for i = 0 to 25 do
|
|
field.(i) <- line_empty
|
|
done;
|
|
field.(23) <- line_full;
|
|
for i = 0 to 19 do
|
|
for j = 0 to 9 do
|
|
cell_set cell_field x:j y:i color:0
|
|
done
|
|
done;
|
|
for i = 0 to 3 do
|
|
for j = 0 to 3 do
|
|
cell_set next_field x:j y:i color:0
|
|
done
|
|
done
|
|
in
|
|
|
|
let draw_falling_block fb =
|
|
draw_block cell_field color: fb.bcolor
|
|
block: (List.nth fb.pattern pos: fb.d)
|
|
x: (fb.x - 3)
|
|
y: (fb.y - 3)
|
|
|
|
and erase_falling_block fb =
|
|
draw_block cell_field color: 0
|
|
block: (List.nth fb.pattern pos: fb.d)
|
|
x: (fb.x - 3)
|
|
y: (fb.y - 3)
|
|
in
|
|
|
|
let stone fb =
|
|
for i=0 to 3 do
|
|
let cur = field.(i + fb.y) in
|
|
field.(i + fb.y) <-
|
|
cur lor ((List.nth fb.pattern pos: fb.d).(i) lsl fb.x)
|
|
done;
|
|
for i=0 to 2 do
|
|
field.(i) <- line_empty
|
|
done
|
|
|
|
and clear fb =
|
|
let l = ref 0 in
|
|
for i = 0 to 3 do
|
|
if i + fb.y >= 3 & i + fb.y <= 22 then
|
|
if field.(i + fb.y) = line_full then
|
|
begin
|
|
incr l;
|
|
field.(i + fb.y) <- line_empty;
|
|
for j = 0 to 9 do
|
|
cell_set cell_field x:j y:(i + fb.y - 3) color:0
|
|
done
|
|
end
|
|
done;
|
|
!l
|
|
|
|
and fall_lines () =
|
|
let eye = ref 22 (* bottom *)
|
|
and cur = ref 22 (* bottom *)
|
|
in
|
|
try
|
|
while !eye >= 3 do
|
|
while field.(!eye) = line_empty do
|
|
decr eye;
|
|
if !eye = 2 then raise Done
|
|
done;
|
|
field.(!cur) <- field.(!eye);
|
|
for j = 0 to 9 do
|
|
cell_set cell_field x:j y:(!cur-3)
|
|
color:(cell_get cell_field j (!eye-3))
|
|
done;
|
|
decr eye;
|
|
decr cur
|
|
done
|
|
with Done -> ();
|
|
for i = 3 to !cur do
|
|
field.(i) <- line_empty;
|
|
for j = 0 to 9 do
|
|
cell_set cell_field x:j y:(i-3) color:0
|
|
done
|
|
done
|
|
in
|
|
|
|
let next = ref 42 (* THE ANSWER *)
|
|
and current =
|
|
ref { pattern= [[|0;0;0;0|]]; bcolor=0; x=0; y=0; d=0; alive= false}
|
|
in
|
|
|
|
let draw_next () =
|
|
draw_block next_field color: (!next+1)
|
|
block: (List.hd (List.nth blocks pos: !next))
|
|
x: 0 y: 0
|
|
|
|
and erase_next () =
|
|
draw_block next_field color: 0
|
|
block: (List.hd (List.nth blocks pos: !next))
|
|
x: 0 y: 0
|
|
in
|
|
|
|
let set_nextblock () =
|
|
current :=
|
|
{ pattern= (List.nth blocks pos: !next);
|
|
bcolor= !next+1;
|
|
x=6; y= 1; d= 0; alive= true};
|
|
erase_next ();
|
|
next := Random.int 7;
|
|
draw_next ()
|
|
in
|
|
|
|
let death_check fb =
|
|
try
|
|
for i=0 to 3 do
|
|
let cur = field.(i + fb.y) in
|
|
if cur land ((List.nth fb.pattern pos: fb.d).(i) lsl fb.x) <> 0
|
|
then raise Done
|
|
done;
|
|
false
|
|
with
|
|
Done -> true
|
|
in
|
|
|
|
let try_to_move m =
|
|
if !current.alive then
|
|
let sub m =
|
|
if death_check m then false
|
|
else
|
|
begin
|
|
erase_falling_block !current;
|
|
draw_falling_block m;
|
|
current := m;
|
|
true
|
|
end
|
|
in
|
|
if sub m then true
|
|
else
|
|
begin
|
|
m.x <- m.x + 1;
|
|
if sub m then true
|
|
else
|
|
begin
|
|
m.x <- m.x - 2;
|
|
sub m
|
|
end
|
|
end
|
|
else false
|
|
in
|
|
|
|
let image_load =
|
|
let i = Canvas.create_image canvas
|
|
x: (block_size * 5 + block_size / 2)
|
|
y: (block_size * 10 + block_size / 2)
|
|
anchor: `Center in
|
|
Canvas.lower canvas tag: i;
|
|
let img = Imagephoto.create () in
|
|
fun file ->
|
|
try
|
|
Imagephoto.configure img file: file;
|
|
Canvas.configure_image canvas tag: i image: img
|
|
with
|
|
_ ->
|
|
begin
|
|
Printf.eprintf "%s : No such image...\n" file;
|
|
flush stderr
|
|
end
|
|
in
|
|
|
|
let add_score l =
|
|
let pline = !line in
|
|
if l <> 0 then
|
|
begin
|
|
line := !line + l;
|
|
score := !score + l * l;
|
|
set_message (Printf.sprintf "%d pts" (1 lsl ((l - 1) * 2)))
|
|
end;
|
|
Textvariable.set linev to: (string_of_int !line);
|
|
Textvariable.set scorev to: (string_of_int !score);
|
|
|
|
if !line /10 <> pline /10 then
|
|
(* undate the background every 10 lines. *)
|
|
begin
|
|
let num_image = List.length backgrounds - 1 in
|
|
let n = !line/10 in
|
|
let n = if n > num_image then num_image else n in
|
|
let file = List.nth backgrounds pos: n in
|
|
image_load file;
|
|
incr level;
|
|
Textvariable.set levv to: (string_of_int !level)
|
|
end
|
|
in
|
|
|
|
let rec newblock () =
|
|
set_message "TETRIS";
|
|
set_nextblock ();
|
|
draw_falling_block !current;
|
|
if death_check !current then
|
|
begin
|
|
!current.alive <- false;
|
|
set_message "GAME OVER";
|
|
game_over ()
|
|
end
|
|
else
|
|
begin
|
|
time := 1100 - (!level / 4 * 300) - ((!level mod 4) * 200);
|
|
if !time < 60 - !level * 3 then time := 60 - !level * 3;
|
|
do_after ms:stop_a_bit do:loop
|
|
end
|
|
|
|
and loop () =
|
|
let m = copy_block current in
|
|
m.y <- m.y + 1;
|
|
if death_check m then
|
|
begin
|
|
!current.alive <- false;
|
|
stone !current;
|
|
do_after ms:stop_a_bit do:
|
|
begin fun () ->
|
|
let l = clear !current in
|
|
if l > 0 then
|
|
do_after ms:stop_a_bit do:
|
|
begin fun () ->
|
|
fall_lines ();
|
|
add_score l;
|
|
do_after ms:stop_a_bit do:newblock
|
|
end
|
|
else
|
|
newblock ()
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
erase_falling_block !current;
|
|
draw_falling_block m;
|
|
current := m;
|
|
do_after ms:!time do:loop
|
|
end
|
|
in
|
|
|
|
let bind_game w =
|
|
bind w events:[`KeyPress] fields:[`KeySymString] action:
|
|
begin fun e ->
|
|
match e.ev_KeySymString with
|
|
| "h" ->
|
|
let m = copy_block current in
|
|
m.x <- m.x - 1;
|
|
try_to_move m; ()
|
|
| "j" ->
|
|
let m = copy_block current in
|
|
m.d <- m.d + 1;
|
|
if m.d = List.length m.pattern then m.d <- 0;
|
|
try_to_move m; ()
|
|
| "k" ->
|
|
let m = copy_block current in
|
|
m.d <- m.d - 1;
|
|
if m.d < 0 then m.d <- List.length m.pattern - 1;
|
|
try_to_move m; ()
|
|
| "l" ->
|
|
let m = copy_block current in
|
|
m.x <- m.x + 1;
|
|
try_to_move m; ()
|
|
| "m" ->
|
|
remove_timer ();
|
|
loop ()
|
|
| "space" ->
|
|
if !current.alive then
|
|
begin
|
|
let m = copy_block current
|
|
and n = copy_block current in
|
|
while
|
|
m.y <- m.y + 1;
|
|
if death_check m then false
|
|
else begin n.y <- m.y; true end
|
|
do () done;
|
|
erase_falling_block !current;
|
|
draw_falling_block n;
|
|
current := n;
|
|
remove_timer ();
|
|
loop ()
|
|
end
|
|
| _ -> ()
|
|
end
|
|
in
|
|
|
|
let game_init () =
|
|
(* Game Initialization *)
|
|
set_message "Initializing ...";
|
|
remove_timer ();
|
|
image_load (List.hd backgrounds);
|
|
time := 1000;
|
|
score := 0;
|
|
line := 0;
|
|
level := 1;
|
|
add_score 0;
|
|
init_field ();
|
|
next := Random.int 7;
|
|
set_message "Welcome to TETRIS";
|
|
set_nextblock ();
|
|
draw_falling_block !current;
|
|
do_after ms:!time do:loop
|
|
in
|
|
(* As an applet, it was required... *)
|
|
(* List.iter fun: bind_game widgets; *)
|
|
bind_game top;
|
|
Button.configure button command: game_init;
|
|
game_init ()
|
|
|
|
let _ = Printexc.print mainLoop ()
|