/servers/src/judgment_mapserver.erl

%%%-------------------------------------------------------------------

%%% File    : gen_server_template.full

%%% Author  : my name <yourname@localhost.localdomain>

%%% Description : 

%%%

%%% Created :  2 Mar 2007 by my name <yourname@localhost.localdomain>

%%%-------------------------------------------------------------------

-module(judgment_mapserver).



-behaviour(gen_server).



-define(MAP, {

-1, -2, -4, -5, -6, -5, -4, -2, -1, 

 0,  0,  0,  0,  0,  0,  0,  0,  0, 

 0, -3,  0,  0,  0,  0,  0, -3,  0, 

-7,  0, -7,  0, -7,  0, -7,  0, -7, 

 0,  0,  0,  0,  0,  0,  0,  0,  0,

 0,  0,  0,  0,  0,  0,  0,  0,  0,

 7,  0,  7,  0,  7,  0,  7,  0,  7, 

 0,  3,  0,  0,  0,  0,  0,  3,  0,

 0,  0,  0,  0,  0,  0,  0,  0,  0,

 1,  2,  4,  5,  6,  5,  4,  2,  1

}).



%% API

-export([start_link/1]).



%% gen_server callbacks

-export([init/1, handle_call/3, handle_cast/2, handle_info/2,

	 terminate/2, code_change/3]).



%%====================================================================

%% API

%%====================================================================

%%--------------------------------------------------------------------

%% Function: start_link() -> {ok,Pid} | ignore | {error,Error}

%% Description: Starts the server

%%--------------------------------------------------------------------

start_link(Name) ->

    gen_server:start_link({local, Name}, ?MODULE, [?MAP], []).



%%====================================================================

%% gen_server callbacks

%%====================================================================



%%--------------------------------------------------------------------

%% Function: init(Args) -> {ok, State} |

%%                         {ok, State, Timeout} |

%%                         ignore               |

%%                         {stop, Reason}

%% Description: Initiates the server

%%--------------------------------------------------------------------

init([Map]) ->

    {ok, Map}.



%%--------------------------------------------------------------------

%% Function: %% handle_call(Request, From, State) -> {reply, Reply, State} |

%%                                      {reply, Reply, State, Timeout} |

%%                                      {noreply, State} |

%%                                      {noreply, State, Timeout} |

%%                                      {stop, Reason, Reply, State} |

%%                                      {stop, Reason, State}

%% Description: Handling call messages

%%--------------------------------------------------------------------

handle_call({get_map}, _From, Map) ->

    {reply, Map, Map};



handle_call({try_move, {{XFrom, YFrom}, {XTo, YTo}}}, _From, Map) ->

    L = rules:get_list(Map, {XFrom, YFrom}),

    case [P || P <- L, P =:= {{XFrom, YFrom}, {XTo, YTo}}] of 

        [] -> {reply, false, Map};

        [_] -> {reply, true, chessmap:apply(Map, {{XFrom, YFrom}, {XTo, YTo}})}

    end;    



handle_call(stop, _From, Map) ->

    {stop, normal, stopped, Map};



handle_call(Request, _From, State) ->

    io:format("~nbad args : ~p~n", [Request]),

    Reply = ok,

    {reply, Reply, State}.



%%--------------------------------------------------------------------

%% Function: handle_cast(Msg, State) -> {noreply, State} |

%%                                      {noreply, State, Timeout} |

%%                                      {stop, Reason, State}

%% Description: Handling cast messages

%%--------------------------------------------------------------------

handle_cast(_Msg, State) ->

    {noreply, State}.



%%--------------------------------------------------------------------

%% Function: handle_info(Info, State) -> {noreply, State} |

%%                                       {noreply, State, Timeout} |

%%                                       {stop, Reason, State}

%% Description: Handling all non call/cast messages

%%--------------------------------------------------------------------

handle_info(_Info, State) ->

    {noreply, State}.



%%--------------------------------------------------------------------

%% Function: terminate(Reason, State) -> void()

%% Description: This function is called by a gen_server when it is about to

%% terminate. It should be the opposite of Module:init/1 and do any necessary

%% cleaning up. When it returns, the gen_server terminates with Reason.

%% The return value is ignored.

%%--------------------------------------------------------------------

terminate(_Reason, _State) ->

    ok.



%%--------------------------------------------------------------------

%% Func: code_change(OldVsn, State, Extra) -> {ok, NewState}

%% Description: Convert process state when code is changed

%%--------------------------------------------------------------------

code_change(_OldVsn, State, _Extra) ->

    {ok, State}.



%%--------------------------------------------------------------------

%%% Internal functions

%%--------------------------------------------------------------------