Merge branch 'bjorn/deprecate-random/OTP-12502'

* bjorn/deprecate-random/OTP-12502:
  Deprecate the 'random' module
  Eliminate mentions of 'random' in documentation
  mnesia tests: Replace 'random' with 'rand'
  percept tests: Replace 'random' with 'rand'
  system tests: Replace 'random' with 'rand'
  common_test tests: Replace 'random' with 'rand'
  gs: Remove the contribs directory
  wx: Replace 'random' with 'rand'
  stdlib tests: Replace 'random' with 'rand'
  kernel test: Replace 'random' with 'rand'
  debugger tests: Replace 'random' with 'rand'
  compiler tests: Replace 'random' with 'rand'
  Emulator test suite: Replace use of 'random' with 'rand'
  Use 'rand' instead of the obsolete 'random' module
  compile: Eliminate use of the obsolete 'random' module

1 files changed, 0 insertions, 625 deletions

diff --git a/lib/gs/contribs/cols/cols.erl b/lib/gs/contribs/cols/cols.erl
deleted file mode 100644
index 265f2b6ee8..0000000000
--- a/lib/gs/contribs/cols/cols.erl
+++ /dev/null
@@ -1,625 +0,0 @@
-%%
-%% %CopyrightBegin%
-%% 
-%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
-%% 
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%%     http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%% 
-%% %CopyrightEnd%
-%%
-
-%%
--module(cols).
--compile([{nowarn_deprecated_function,{gs,config,2}},
-          {nowarn_deprecated_function,{gs,create,3}},
-          {nowarn_deprecated_function,{gs,create,4}},
-          {nowarn_deprecated_function,{gs,destroy,1}},
-          {nowarn_deprecated_function,{gs,read,2}},
-          {nowarn_deprecated_function,{gs,start,0}}]).
-
--export([start/0, init/0]).
-
-%% internal export.
--export([make_board_elem/3]).
-
-%%======================================================================
-%% Contents
-%%=====================
-%% 1. The actual program
-%% 2. Graphics
-%% 3. Data structures and stuff
-%% 4. Lambdas
-%%======================================================================
-
-
--define(COLORS, {red,green,blue,grey,yellow,{66,153,130}}).
--define(HIGHFILE, "./cols.high").
--define(HEIGHT, 17).
--define(LEFT, 50).
--define(SIZE, 15).
--define(VERSION, "v0.9").
--define(WIDTH, 8).
-
--record(state, {bit,board,nextbit,ticks, score=0}).
-%%----------------------------------------------------------------------
-%% Consists of three boxes.
-%%----------------------------------------------------------------------
--record(bit, {x,y,topColor, middleColor, bottomColor,
-	      top_gsobj,mid_gsobj,bot_gsobj}).
-
-%%======================================================================
-%% 1. The actual program
-%%======================================================================
-
-start() ->
-    spawn_link(cols,init,[]).
-
-init() ->
-    make_graphics(),
-    {A,B,C} = erlang:now(),
-    random:seed(A,B,C),
-    NextBit = make_bit(),
-    Board = make_screen_board(),
-    S = #state{bit=make_bit(), board=Board, ticks=update_timer(1),
-	       score=make_score(), nextbit=new_bit_xy(NextBit, -2,5)},
-    gs:config(win, [{map, true}]),
-    loop(S).
-
-make_graphics() ->
-    G = gs:start(),
-    H = ?HEIGHT*?SIZE,
-    W = ?WIDTH*?SIZE,
-    BotMargin = 100,
-    gs:create(window, win, G, [{destroy,true},{map, true},{title, "cols"},
-			       {height, H+BotMargin}, {width, W+?LEFT+10},
-			       {bg, grey},{keypress,true}]),
-    gs:create(canvas, can, win, [{bg, black},
-				 {height, H+BotMargin},
-				 {width, W+?LEFT+20}]),
-    gs:create(text, can, [{text, "Next"}, {coords, [{5, 45}]}, {fg, red}]),
-    gs:create(image, help, can, [{coords,[{5,7}]},
-				 {load_gif, dir() ++ "/help.gif"},
-				 {buttonpress,true}]),
-    draw_borders().
-
-loop(State) ->
-    receive
-	Event -> loop(update(Event, State))
-    end.
-
-%%----------------------------------------------------------------------
-%% How fast speed should be doubled
-%%----------------------------------------------------------------------
--define(DBL_TICKS, 300).
-
-update_timer(Ticks) ->
-    K = 0.001/?DBL_TICKS,
-    M = 1.001-K,
-    Q = K*Ticks+M,
-    Timeout = round(1/math:log(Q)),
-    timer:send_after(Timeout, self(), fall_timeout),
-    Ticks+1.
-
-add_score({ScoreObj, NScore}, DScore) ->
-    NScore2 = NScore + DScore,
-    gs:config(ScoreObj, [{text, io_lib:format("Score: ~w", [NScore2])}]),
-    {ScoreObj, NScore2}.
-    
-
-update({gs,_Obj,keypress,_Data, ['Left'|_]}, State) ->
-    #state{bit=Bit, board = Board} = State,
-    #bit{x=X,y=Y} = Bit,
-    if X > 0 -> 
-	    case is_board_empty(Board, X-1,Y) of
-		true ->
-		    State#state{bit=new_bit_xy(Bit, X-1, Y)};
-		false ->
-		    State
-	    end;
-	true -> State
-    end;
-
-update({gs,_Obj,keypress,_Data, ['Right'|_]}, State) ->
-    #state{bit=Bit, board = Board} = State,
-    #bit{x=X,y=Y} = Bit,
-    if X < ?WIDTH - 1 ->
-	    case is_board_empty(Board, X+1, Y) of
-		true ->
-		    State#state{bit=new_bit_xy(Bit, X+1, Y)};
-		false ->
-		    State
-	    end;
-	true -> State
-    end;
-
-update({gs,_Obj,keypress,_Data, ['Up'|_]}, State) ->
-    State#state{bit=shift_bits(State#state.bit)};    
-
-update({gs,_Obj,keypress,_Data, [Key|_]}, State) ->
-    case drop_key(Key) of
-	true ->
-	    #state{bit=Bit, board=Board, score=Score} = State,
-	    #bit{x=X,y=Y} = Bit,
-	    {NewX, NewY, NewScore} = drop(X,Y,Score,Board),
-	    fasten_bit(State#state{bit=new_bit_xy(Bit,NewX, NewY),
-				   score=NewScore});
-	false -> State
-    end;
-	
-update(fall_timeout, State) ->
-    #state{bit=Bit, board=Board, ticks = Ticks, score=Score} = State,
-    NewY = Bit#bit.y+1,
-    X = Bit#bit.x,
-    case is_fall_ok(Board, X, NewY) of
-	true ->
-	    State#state{bit=new_bit_xy(Bit, X, NewY),
-			ticks=update_timer(Ticks), score=add_score(Score, 1)};
-	false ->
-	    S1 = fasten_bit(State),
-	    S1#state{ticks=update_timer(Ticks)}
-    end;
-
-update({gs,_,destroy,_,_}, _State) ->
-    exit(normal);
-
-update({gs,help,buttonpress,_,_}, State) ->
-    show_help(),
-    State;
-
-update(OtherEvent, State) ->
-    ok=io:format("got other! ~w~n", [OtherEvent]), State.
- 
-drop_key('Down') -> true;
-drop_key(space) -> true;
-drop_key(_) -> false.
-
-is_board_empty(Board, X, Y) ->
-    case {color_at(Board, X, Y),
-	  color_at(Board, X, Y + 1),
-	  color_at(Board, X, Y + 2)} of
-	{black, black, black} -> true;
-	_ -> false
-    end.
-
-%%----------------------------------------------------------------------
-%% Returns: NewState
-%%----------------------------------------------------------------------
-fasten_bit(State) ->
-    #state{board=Board, bit=Bit, nextbit=NextBit, score=Score} = State,
-    #bit{x=X,y=Y,topColor=C1,middleColor=C2,bottomColor=C3} = Bit,
-    B1 = update_screen_element(Board, X, Y, C1),
-    B2 = update_screen_element(B1, X, Y+1, C2),
-    B3 = update_screen_element(B2, X, Y+2, C3),
-    destroy_bit(Bit),
-    #bit{topColor=NC1,middleColor=NC2,bottomColor=NC3} = NextBit,
-    {B4, ExtraScore} = erase_bits(B3, [{X,Y},{X,Y+1},{X,Y+2}], 0),
-    NewBit = make_bit(NC1,NC2,NC3),
-    case is_board_empty(B4, NewBit#bit.x, NewBit#bit.y) of
-	true ->
-	    State#state{score=add_score(Score, ExtraScore),
-			bit=NewBit, nextbit=new_colors(NextBit),board=B4};
-	false ->
-	    {_GsObj,Score2}=State#state.score,
-	    highscore:run(Score2,?HIGHFILE),
-	    exit(normal)
-    end.
-
-%%----------------------------------------------------------------------
-%% Args: Check: list of {X,Y} to check.
-%% Returns: {NewBoard, ExtraScore}
-%%----------------------------------------------------------------------
-erase_bits(Board, Checks, ExtraScore) ->
-    ElemsToDelete = elems2del(Checks,Board,[]),
-    NDel = length(ElemsToDelete),
-    if
-	NDel > 0 ->
-	    Board2 = delete_elems(Board, ElemsToDelete),
-	    {NewBoard, NewCheck} = fall_down(Board2, ElemsToDelete),
-	    if NDel > 3 -> 
-		    {B,ES}=erase_bits(NewBoard,NewCheck,ExtraScore+2*NDel),
-		    {NewBoard2, NewCheck2} = bonus(B, NewCheck),
-		    erase_bits(NewBoard2, NewCheck2, ES);
-		true -> 
-		    erase_bits(NewBoard, NewCheck, 2*NDel)
-	    end;
-	true -> {Board, ExtraScore}
-    end.
-
-bonus(Board, Check) ->
-    Cols = collect_bottom_bits(0,Board),
-    NewBoard = randomize_columns(5, Board, Cols),
-    NewCheck = update_check(Check, Cols),
-    {NewBoard, NewCheck}.
-
-randomize_columns(0, Board, _) -> Board;
-randomize_columns(N, Board, Cols) ->
-    NewBoard = randomize_columns(Cols,Board),
-    randomize_columns(N-1, NewBoard, Cols).
-			
-randomize_columns([],Board) -> Board; 
-randomize_columns([X|Xs],Board) ->
-    flush(),
-    timer:sleep(50),
-    randomize_columns(Xs,update_screen_element(Board,X,?HEIGHT-1,rndColor())).
-
-%%----------------------------------------------------------------------
-%% Returns: NewBoard
-%%----------------------------------------------------------------------
-delete_elems(Board, Elems2Del) ->
-    OrgObjs = org_objs(Elems2Del,Board),
-    visual_effect(?SIZE, OrgObjs),
-    NewBoard = update_board(Elems2Del, Board),
-    put_back(OrgObjs),
-    NewBoard.
-
-visual_effect(0,_OrgObjs) -> done;
-visual_effect(Size,OrgObjs) ->
-    set_size(OrgObjs,Size),
-    flush(),
-    timer:sleep(20),
-    visual_effect(Size-1,OrgObjs).
-
-set_size([],_Size) -> done;
-set_size([{GsObj,[{X1,Y1},{_X2,_Y2}]}|T],Size) ->
-    gs:config(GsObj, [{coords, [{X1,Y1},{X1+Size,Y1+Size}]}]),
-    set_size(T,Size).
-
-%%----------------------------------------------------------------------
-%% Note: Loop over columns where something is removed only. (efficiency)
-%% Returns: {ReversedNewColumns (perhaps shorter), Checks}
-%% cols:fall_column([a,b,black,black,c,f,black,d,black], 3, 15, [], []).
-%% should return: {[a,b,c,f,d],[{3,11},{3,12},{3,13}]}
-%%----------------------------------------------------------------------
-fall_column([], _X, _Y, ColumnAcc, ChecksAcc) ->
-    {ColumnAcc, ChecksAcc};
-fall_column([black|Colors], X, Y, ColumnAcc, ChecksAcc) ->
-    case find_box(Colors) of
-	false -> {ColumnAcc, ChecksAcc};
-	NewColors when is_list(NewColors) ->
-		fall_one_step(NewColors, X, Y, ColumnAcc, ChecksAcc)
-    end;
-fall_column([Color|Colors], X, Y, ColumnAcc, ChecksAcc) ->
-    fall_column(Colors, X, Y-1, [Color | ColumnAcc], ChecksAcc).
-
-find_box([]) -> false;
-find_box([black|Colors]) ->
-    find_box(Colors);
-find_box([Color|Colors]) -> [Color|Colors].
-    
-%%----------------------------------------------------------------------
-%% Enters: ([a,b, , ,c,d], 3, 8, Q) 
-%% Leaves: ([b,a|Q], [ , , ,c,d], 10, [{3,8},{4,9}])
-%%----------------------------------------------------------------------
-fall_one_step([], X, Y, ColumnAcc, Checks) ->
-    fall_column([], X, Y, ColumnAcc, Checks);
-fall_one_step([black|Colors], X, Y, ColumnAcc, Checks) ->
-    fall_column([black|Colors], X, Y, ColumnAcc, Checks);
-fall_one_step([Color|Colors], X, Y, ColumnAcc, Checks) ->
-    fall_one_step(Colors, X, Y-1, [Color|ColumnAcc],[{X,Y}|Checks]).
-
-%%----------------------------------------------------------------------
-%% Returns: {NewBoard, NewChecks}
-%%----------------------------------------------------------------------
-fall_down(Board1, Elems2Del) ->
-    UpDatedCols = updated_cols(Elems2Del, []),
-    fall_column(UpDatedCols, Board1, []).
-
-fall_column([], NewBoard, NewChecks) -> {NewBoard, NewChecks};
-fall_column([X|Xs], BoardAcc, ChecksAcc) ->
-    OrgColumn = boardcolumn_to_tuple(BoardAcc, X),
-    Column = columntuple_to_list(OrgColumn),
-    {NewColumn, NewChecksAcc} = fall_column(Column, X,?HEIGHT-1,[],ChecksAcc),
-    NewBoardAcc =
-	set_board_column(BoardAcc,X,new_column_list(NewColumn,OrgColumn)),
-    fall_column(Xs,NewBoardAcc,NewChecksAcc).
-
-new_column_list(NewColumn, ColumnTuple) ->
-    Nempty = ?HEIGHT - length(NewColumn),
-    L = make_list(black, Nempty) ++ NewColumn,
-    new_column_list(L, 1, ColumnTuple).
-
-new_column_list([H|T], N, Tuple) ->
-    {GsObj, Color} = element(N, Tuple),
-    [update_screen_element({GsObj, Color},H) | new_column_list(T, N+1, Tuple)];
-new_column_list([], _, _) -> [].
-    
-
-%%----------------------------------------------------------------------
-%% Returns: a reversed list of colors.
-%%----------------------------------------------------------------------
-columntuple_to_list(ColumnTuple) when is_tuple(ColumnTuple) ->
-    columntuple_to_list(tuple_to_list(ColumnTuple),[]).
-
-columntuple_to_list([],Acc) -> Acc;
-columntuple_to_list([{_GsObj, Color}|T],Acc) ->
-    columntuple_to_list(T,[Color|Acc]).
-
-%%======================================================================
-%% 2. Graphics
-%%======================================================================
-
-make_bit() ->
-    make_bit(rndColor(),rndColor(),rndColor()).
-
-make_bit(Tc,Mc,Bc) ->
-    X = ?WIDTH div 2,
-    Y = 0,
-    #bit{x=X,y=Y,topColor= Tc, middleColor=Mc, bottomColor=Bc,
-	top_gsobj = make_box(X,Y,Tc), mid_gsobj=make_box(X,Y+1,Mc),
-	bot_gsobj=make_box(X,Y+2,Bc)}.
- 
-new_colors(Bit) ->
-    #bit{top_gsobj=T,mid_gsobj=M,bot_gsobj=B} = Bit,
-    Tc = rndColor(),
-    Mc = rndColor(),
-    Bc = rndColor(),
-    gs:config(T, [{fill, Tc}]),
-    gs:config(M, [{fill, Mc}]),
-    gs:config(B, [{fill, Bc}]),
-    Bit#bit{topColor= Tc, middleColor=Mc, bottomColor=Bc}.
-
-new_bit_xy(Bit, NewX, NewY) ->
-    #bit{x=X,y=Y,top_gsobj=T,mid_gsobj=M,bot_gsobj=B} = Bit,
-    Dx = (NewX - X) * ?SIZE,
-    Dy = (NewY - Y) * ?SIZE,
-    gs:config(T, [{move, {Dx, Dy}}]),
-    gs:config(M, [{move, {Dx, Dy}}]),
-    gs:config(B, [{move, {Dx, Dy}}]),
-    Bit#bit{x=NewX, y=NewY}.
-
-destroy_bit(#bit{top_gsobj=T,mid_gsobj=M,bot_gsobj=B}) ->
-    gs:destroy(T),
-    gs:destroy(M),
-    gs:destroy(B).
-
-shift_bits(Bit) ->
-    #bit{topColor=C1,middleColor=C2,bottomColor=C3,
-	 top_gsobj=T,mid_gsobj=M,bot_gsobj=B} = Bit,
-    gs:config(T, {fill,C2}),
-    gs:config(M, {fill,C3}),
-    gs:config(B, {fill,C1}),
-    Bit#bit{topColor=C2, middleColor=C3, bottomColor=C1}.
-
-rndColor() ->
-    Siz = size(?COLORS),
-    element(random:uniform(Siz), ?COLORS).
-
-make_score() ->
-    {gs:create(text, can, [{text, "Score: 0"}, {fg, red},
-			   {coords, [{5,?HEIGHT*?SIZE+10}]}]), 0}.
-
-make_screen_board() ->
-    xy_loop({cols,make_board_elem}, make_board(), ?WIDTH, ?HEIGHT).
-
-make_board_elem(X,Y,Board) ->
-    set_board_element(Board,X,Y,{make_box(X,Y,black),black}).
-
-flush() -> gs:read(can, bg).
-
-draw_borders() ->
-    BotY = ?HEIGHT*?SIZE,
-    RightX = ?LEFT + ?SIZE*?WIDTH,
-    LeftX = ?LEFT - 1,
-    gs:create(line,can,[{coords,[{LeftX,0},{LeftX,BotY}]},{fg,white}]),
-    gs:create(line,can,[{coords,[{LeftX,BotY},{RightX,BotY}]},{fg,white}]),
-    gs:create(line,can,[{coords,[{RightX,0},{RightX, BotY}]}, {fg,white}]).
-
-update_screen_element(ScrBoard, X, Y, Color) ->
-    case board_element(ScrBoard,X,Y) of
-	{_GsObj, Color} ->
-	    ScrBoard; % don't have to update screen
-	{GsObj, _ScreenColor} ->
-	    gs:config(GsObj, color_args(Color)),
-	    set_board_element(ScrBoard, X, Y, {GsObj, Color})
-    end.
-
-update_screen_element(ScrElem, Color) ->
-    case ScrElem of
-	{_GsObj, Color} ->
-	    ScrElem; % don't have to update screen
-	{GsObj, _ScreenColor} ->
-	    gs:config(GsObj, color_args(Color)),
-	    {GsObj, Color}
-    end.
-    
-
-color_args(black) -> [{fg,black},{fill,black}];
-color_args(Color) -> [{fg,white},{fill,Color}].
-
-%%======================================================================
-%% 3. Data structures and stuff
-%%======================================================================
-
-xy_loop(Fun, Acc,  XMax, YMax) ->
-    xy_loop(Fun, Acc, 0, 0, XMax, YMax).
-
-xy_loop(_Fun, Acc, _X, YMax, _XMax, YMax) -> Acc;
-xy_loop(Fun, Acc, XMax, Y, XMax, YMax) ->
-    xy_loop(Fun, Acc, 0, Y+1, XMax, YMax);
-xy_loop(Fun, Acc, X, Y, XMax, YMax) ->
-    xy_loop(Fun, apply(Fun, [X, Y,Acc]), X+1,Y,XMax, YMax).
-
-%%----------------------------------------------------------------------
-%% Returns: a sorted list of {X,Y} to delete.
-%% Pre: PrevDelElems is sorted.
-%%----------------------------------------------------------------------
-erase_bits_at(Board, PrevDelElems, X,Y) ->
-    C = color_at(Board, X, Y),
-    erase_bits_at([vert, horiz, slash, backslash],X,Y,C,Board,PrevDelElems).
-    
-erase_bits_at([], _X,_Y,_C,_Board, Elems2Del) -> Elems2Del;
-erase_bits_at([Dir|Ds],X,Y,C,Board, Elems2DelAcc) ->
-    Dx = dx(Dir),
-    Dy = dy(Dir),
-    DelElems = lists:append(check_dir(Board, X-Dx,Y-Dy,-Dx,-Dy,C),
-			    check_dir(Board, X,Y,Dx,Dy,C)),
-    N_in_a_row = length(DelElems),
-    if N_in_a_row >= 3 ->
-	    erase_bits_at(Ds,X,Y,C,Board,
-			  ordsets:union(lists:sort(DelElems),Elems2DelAcc));
-       true -> erase_bits_at(Ds,X,Y,C,Board,Elems2DelAcc)
-    end.
-
-dx(vert) -> 0;
-dx(horiz) -> 1;
-dx(slash) -> 1;
-dx(backslash) -> -1.
-
-dy(vert) -> -1;
-dy(horiz) -> 0;
-dy(slash) -> -1;
-dy(backslash) -> -1.
-
-
-%%----------------------------------------------------------------------
-%% Returns: list of {X,Y} to delete.
-%%----------------------------------------------------------------------
-check_dir(Board, X, Y, Dx, Dy, Color) 
-  when X >= 0, X < ?WIDTH, Y >= 0, Y < ?HEIGHT ->
-    case color_at(Board, X, Y) of
-	Color ->
-	    [{X,Y} | check_dir(Board, X+Dx, Y+Dy, Dx, Dy, Color)];
-	_OtherColor ->
-            []
-    end;
-check_dir(_Board, _X, _Y, _Dx, _Dy, _Color) -> [].
-  
-make_box(X, Y, Color) ->
-    make_box(X, Y, 1, 1, Color).
-
-%%----------------------------------------------------------------------
-%% Returns: GsObj
-%%----------------------------------------------------------------------
-make_box(X, Y, Height, Width, Color) ->
-    Opts = if Color == black -> [{fg, black}, {fill, black}];
-	       true -> [{fill, Color}, {fg, white}] end,
-    gs:create(rectangle, can, [{coords, [{?LEFT + X * ?SIZE, Y * ?SIZE},
-					 {?LEFT + X * ?SIZE + (?SIZE*Width)-1,
-					 Y * ?SIZE + (?SIZE*Height)-1}]}|Opts]).
-
-is_fall_ok(_Board, _NewX, NewY) when NewY+2 >= ?HEIGHT -> false;
-is_fall_ok(Board, NewX, NewY) ->
-    case color_at(Board, NewX, NewY+2) of
-	black ->
-	    true;
-	_ -> false
-    end.
-
-color_at(Board, X, Y) ->
-    {_GsObj, Color} = board_element(Board, X, Y),
-    Color.
-
-
-%%----------------------------------------------------------------------
-%% X:0..?WIDTH-1, Y:0..?HEIGHT
-%%----------------------------------------------------------------------
-make_board() ->
-    list_to_tuple(make_list(make_column(), ?WIDTH)).
-
-board_element(Board, X, Y) ->
-    element(Y+1, element(X+1, Board)).
-
-set_board_element(Board, X, Y, NewValue) ->
-    Col = element(X+1, Board),
-    NewCol=setelement(Y+1,Col, NewValue),
-    setelement(X+1, Board, NewCol).
-
-make_column() ->
-    list_to_tuple(make_list(black, ?HEIGHT)).
-
-make_list(_Elem, 0) -> [];
-make_list(Elem, N) -> [Elem|make_list(Elem,N-1)].
-
-boardcolumn_to_tuple(Board, X) ->
-    element(X+1, Board).
-
-set_board_column(Board, X, NewCol) when length(NewCol) == ?HEIGHT ->
-    setelement(X+1, Board, list_to_tuple(NewCol)).
-
-show_help() ->
-    W = gs:create(window, win, [{title, "cols Help"}, {width, 300},
-				{height,300}, {map, true}]),
-    gs:create(label, W, [{x,0},{y,0},{height, 200},{width,300},{justify,center},
-			 {label, {text, 
-    "cols $Revision: 1.23 $" 
-    "\nby\n"
-    "Klas Eriksson, [email protected]\n\n"
-    "Help: Use arrows and space keys.\n"
-    "      Try to get 3 in-a-row.\n"
-    "      More than 3 gives bonus."}}]),
-    B=gs:create(button, W, [{x,100},{y,250}, {label, {text, "Dismiss"}}]),
-    receive
-	{gs, B, click, _, _} -> ok
-    end,
-    gs:destroy(W).
-
-%%======================================================================
-%% 4. Lambdas
-%%======================================================================
-
-drop(X,Y,Score,Board) ->
-    case is_fall_ok(Board, X, Y+1) of
-	true -> drop(X,Y+1,add_score(Score, 1),Board);
-	false -> {X,Y, Score}
-    end.
-
-elems2del([], _Board,Elems2DelAcc) -> Elems2DelAcc;
-elems2del([{X,Y}|Checks],Board,Elems2DelAcc) ->
-    NewElems2DelAcc = ordsets:union(erase_bits_at(Board,Elems2DelAcc,X,Y),
-				    Elems2DelAcc),
-    elems2del(Checks,Board,NewElems2DelAcc).
-
-collect_bottom_bits(?WIDTH,_Board) -> [];
-collect_bottom_bits(X,Board) ->
-    case color_at(Board, X, ?HEIGHT-1) of
-	black -> collect_bottom_bits(X+1,Board);
-	_AcolorHere -> [X|collect_bottom_bits(X+1,Board)]
-    end.
-
-update_check(_Check,[]) -> [];
-update_check(Check,[X|Xs]) ->
-    case lists:member({X, ?HEIGHT-1}, Check) of
-	true -> update_check(Check,Xs);
-	false -> [{X, ?HEIGHT-1}|update_check(Check,Xs)]
-    end.
-
-org_objs([],_Board) -> [];
-org_objs([{X,Y}|XYs],Board) ->
-    {GsObj, _Color} = board_element(Board, X, Y),
-    [{GsObj, lists:sort(gs:read(GsObj, coords))}|org_objs(XYs,Board)].
-
-update_board([],Board) -> Board;
-update_board([{X,Y}|XYs], Board) ->
-    update_board(XYs,update_screen_element(Board, X, Y, black)).
-
-put_back([]) -> done;
-put_back([{GsObj, Coords}|Objs]) ->
-    gs:config(GsObj, [{coords, Coords}]),
-    put_back(Objs).
-
-updated_cols([], UpdColsAcc) -> UpdColsAcc;
-updated_cols([{X,_Y}|XYs], UpdColsAcc) ->
-    case lists:member(X,UpdColsAcc) of
-	true -> updated_cols(XYs,UpdColsAcc);
-	false -> updated_cols(XYs,[X|UpdColsAcc])
-    end.
-
-%% This is not an application so we don't have their way of knowing
-%% a private data directory where the GIF files are located (this directory).
-%% We can find GS and makes it relative from there /kgb
-
--define(EbinFromGsPriv,"../contribs/ebin").
-
-dir()->
-    GsPrivDir = code:priv_dir(gs),
-    filename:join(GsPrivDir,?EbinFromGsPriv).