gs: Remove the contribs directory

Some of the games no longer work. For example, when calling
cols:start/0, there will be a 'badfun' exception because of
an attempt to apply a tuple fun.

There are also calls to the deprecated now/0 function and to
the deprecated 'random' module.

Since the entire gs application is deprecated and scheduled
to be removed any release now, there is no need to keep the
contribs directory.

1 files changed, 0 insertions, 237 deletions

diff --git a/lib/gs/contribs/othello/othello.erl b/lib/gs/contribs/othello/othello.erl
deleted file mode 100644
index c6ad0a76ec..0000000000
--- a/lib/gs/contribs/othello/othello.erl
+++ /dev/null
@@ -1,237 +0,0 @@
-%%
-%% %CopyrightBegin%
-%% 
-%% Copyright Ericsson AB 1996-2009. 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(othello).
--export([start/0,new_game/4,start1/5]).
-
-
-
-%%----------------------------------------------------------------------
-%% The Othello program now uses the gs graphical package instead of the 
-%% pxw package. See module othello_board for details
-%%
-%%----------------------------------------------------------------------
-
-
-start() -> othello_board:start().
-
-new_game(Computer,Player,Depth,Init) ->
-    spawn_link(othello,start1,[self(),Computer,Player,Depth,Init]).
-
-start1(Win,Computer,Player,Depth,Init) ->
-    Board = othello_adt:new(t),
-    random:seed(),
-    init_display(Board,Win,Init),
-    play(Computer,Player,Board,Depth,Win,1).
-
-play(Computer,Player,Board,Depth,Win,NoDs) ->
-    tell_win(Win,Computer,Player),
-    case catch continue(Player,Board) of
-	{game_over,Result} ->
-	    game_over(Board,Player,Result,Win);
-	{omit_draw,Player} ->
-	    omit(Player,Win),
-	    play(Computer,swap(Player),Board,Depth,Win,NoDs);
-	ok ->
-	    Draw = choose_draw(Computer,Player,Board,Depth,Win,NoDs),
-	    Win ! {self(),draw,Draw},
-	    Board1 = othello_adt:set(Draw,Player,Board),
-	    display(Board1,Board,Win),
-	    play(Computer,swap(Player),Board1,Depth,Win,NoDs+1)
-    end.
-
-continue(Player,Board) ->
-    Draws = game_over(Player,Board),
-    not_allowed(Draws,Player),
-    ok.
-
-choose_draw(Computer,Computer,Board,Depth,_Win,NoDs) ->    % Depth > 0 !!
-    {Draw,_Value} = alpha_beta(Depth,Board,-11000,11000,Computer,NoDs),
-%    io:format('Choosen draw is {~w,~w} : (~w)~n',
-%	      [othello_adt:col(Draw),othello_adt:row(Draw),Value]),
-%    io:format('=====================~n',[]),
-    Draw;
-choose_draw(Computer,Player,Board,Depth,Win,NoDs) ->
-    receive
-	{Win,position,Draw} ->
-	    flush(Win),
-	    case othello_adt:is_draw(Draw,Player,Board) of
-		false ->
-		    Win ! {self(),illegal_draw,Draw},
-		    choose_draw(Computer,Player,Board,Depth,Win,NoDs);
-		true ->
-		    Draw
-	    end
-    end.
-
-flush(Win) ->
-    receive
-	{Win,position,_} ->
-	    flush(Win)
-    after 1 ->
-	    true
-    end.
-
-tell_win(Win,Computer,Player) ->
-    Win ! {self(),player,Computer,Player},
-    receive
-	{Win,go_on_play} -> true
-    end.
-
-alpha_beta(0,Board,_,_,Player,_) ->
-    {-1,othello_adt:evaluate_board(Player,Board)};
-alpha_beta(Depth,Board,Alpha,Beta,Player,NoDs) ->
-    case compute(Player,Board,NoDs) of
-	[] ->
-	    Player1 = swap(Player),
-	    case compute(Player1,Board,NoDs) of
-		[] ->
-		    dead_lock(Board,Player);
-		PosDraws1 ->
-		    choose(PosDraws1,Board,Depth-1,-Beta,-Alpha,-1,
-			   Player1,NoDs)
-	    end;
-	PosDraws ->
-	    choose(PosDraws,Board,Depth-1,-Beta,-Alpha,-1,Player,NoDs)
-%	    A = choose(PosDraws,Board,Depth-1,-Beta,-Alpha,-1,Player,NoDs),
-%	    io:format('Alpha-Beta (~w) ==> ~w~n',[Depth,A]),
-%	    A
-    end.
-
-choose([Draw|Draws],Board,Depth,Alpha,Beta,Record,Player,NoDs) ->
-    Player1 = swap(Player),
-    Board1 = othello_adt:set(Draw,Player,Board),
-%    io:format('Alpha <~w> Beta <~w> ~n',[Alpha,Beta]),
-    {_,Value} = alpha_beta(Depth,Board1,Alpha,Beta,Player1,NoDs+1),
-    Value1 = -Value,
-    cutoff(Draw,Value1,Depth,Alpha,Beta,Draws,Board,Record,Player,NoDs);
-choose([],_,_,Alpha,_,Draw,_,_) ->
-    {Draw,Alpha}.
-    
-cutoff(Draw,Value,_,_,Beta,_,_,_,_,_) when Value >= Beta ->
-    {Draw,Value};
-cutoff(Draw,Value,Depth,Alpha,Beta,Draws,Board,_,Player,NoDs)
-  when Alpha < Value, Value < Beta ->
-    choose(Draws,Board,Depth,Value,Beta,Draw,Player,NoDs);
-cutoff(Draw,Value,Depth,Alpha,Beta,Draws,Board,Record,Player,NoDs)
-  when Value == Alpha, NoDs < 13 ->
-    choose(Draws,Board,Depth,Alpha,Beta,random_choice(Draw,Record),
-	   Player,NoDs);
-cutoff(_Draw,Value,Depth,Alpha,Beta,Draws,Board,Record,Player,NoDs)
-  when Value =< Alpha ->
-    choose(Draws,Board,Depth,Alpha,Beta,Record,Player,NoDs).
-
-compute(Player,Board,NoOfDraws) when NoOfDraws < 13 ->
-    case othello_adt:possible_draws(Player,Board,begin_play) of
-	[] ->
-	    othello_adt:possible_draws(Player,Board,playing);
-	Draws ->
-	    Draws
-    end;
-compute(Player,Board,_) ->
-    othello_adt:possible_draws(Player,Board,playing).
-
-%%----------------------------------------------------------
-%% Randomly choose between two draws with the same value.
-%%----------------------------------------------------------
-    
-random_choice(Draw,Draw1) ->
-    case random:uniform(2) of
-	1 ->
-	    Draw;
-	2 ->
-	    Draw1
-    end.
-
-dead_lock(Board,Player) ->
-    case win_or_loose(Board,Player) of
-	0                    -> {-1,0};
-	Value when Value > 0 -> {-1,10000};
-	_                    -> {-1,-10000}
-    end.
-
-win_or_loose(Board,Player) ->
-    Player1 = swap(Player),
-    othello_adt:pieces(Player,Board) - othello_adt:pieces(Player1,Board).
-
-game_over(Player,Board) ->
-    case othello_adt:possible_draws(Player,Board,playing) of
-	[] ->
-	    Player1 = swap(Player),
-	    case othello_adt:possible_draws(Player1,Board,playing) of
-		[] ->
-		    throw({game_over,{{Player,othello_adt:pieces(Player,Board)},
-				      {Player1,othello_adt:pieces(Player1,Board)}}});
-		_ ->
-		    []  % Player`s Draws !!
-	    end;
-	Draws ->
-	    Draws
-    end.
-
-game_over(_Board,_Player,Result,Win) ->
-    Win ! {self(),game_over,white_res(Result),black_res(Result)}.
-
-white_res({{white,Res},_}) -> Res;
-white_res({_,{white,Res}}) -> Res.
-	
-black_res({{black,Res},_}) -> Res;
-black_res({_,{black,Res}}) -> Res.
-
-not_allowed([],Player) ->
-    throw({omit_draw, Player});
-not_allowed(_,_Player) ->
-    ok.
-
-omit(Player,Win) ->
-    Win ! {self(),omit_draw,Player},
-    receive
-	{Win,continue} ->
-	    ok
-    end.
-
-init_display(_Board,_Win,first_time) ->
-    true;
-init_display(Board,Win,_) ->
-    display(Board,Win).
-
-display(Board,Win) ->
-    All = othello_adt:all_pos(Board),
-    display1(All,Win),
-    Win ! {self(),score,othello_adt:pieces(white,Board),
-	   othello_adt:pieces(black,Board)}.
-
-display(Board,OldB,Win) ->
-    Diff = othello_adt:diff(Board,OldB),
-    display1(Diff,Win),
-    Win ! {self(),score,othello_adt:pieces(white,Board),
-	   othello_adt:pieces(black,Board)}.
-    
-display1([{Pos,Colour}|Diff],Win) ->
-    Win ! {self(),new_mark,Pos,Colour},
-    display1(Diff,Win);
-display1(_,_) ->
-    true.
-
-swap(white) -> black;
-swap(black) -> white.
-
-