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Now we have some myltiplayer action!

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This commit is contained in:
Jonatan Pålsson 2011-02-17 23:17:04 +01:00
parent 3f41769233
commit 883cf9e9d7
4 changed files with 151 additions and 63 deletions
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21
src/ggs_coordinator.erl
View file

@ -61,21 +61,24 @@ handle_call(join_lobby, _From, State) ->
Token = helpers:get_new_token(),
{reply, {ok, Token}, State};
handle_call({join_table, Table}, _From, State) ->
handle_call({join_table, Table}, From, State) ->
{FromPlayer, _Ref} = From,
Tables = State#co_state.tables,
case lists:keyfind(Table, 1, Tables) of
{Table} ->
{reply, {ok, Table}, State}; %% @TODO: Also add player to table
{TableID, TablePID} ->
ggs_table:add_player(TablePID, FromPlayer),
{reply, {ok, TablePID}, State};
false ->
{reply, {error, no_such_table}, State}
end;
handle_call({create_table, {force, TID}}, From, State) ->
TIDMap = State#co_state.player_table_map,
Tables = State#co_state.tables,
{reply, {ok, TID}, State#co_state{
player_table_map = [{From, TID} | TIDMap],
tables = [{TID} | TID]
handle_call({create_table, {force, TableID}}, From, State) ->
TableIDMap = State#co_state.player_table_map,
Tables = State#co_state.tables,
NewTableProc = ggs_table:start_link(),
{reply, {ok, TableID}, State#co_state{
player_table_map = [{From, TableID} | TableIDMap],
tables = [{TableID, NewTableProc} | Tables]
}};
handle_call(_Message, _From, State) ->

41
src/ggs_gamevm_e.erl Normal file
View file

@ -0,0 +1,41 @@
-module(ggs_gamevm_e).
-export([start_link/1, define/2, user_command/4]).
%% @doc This module is responsible for running the game VM:s. You can issue
%% commands to a vm using this module.
%% @doc Create a new VM process. The process ID is returned and can be used
%% with for example the define method of this module.
start_link(Table) ->
PortPid = spawn( fun() ->
loop(Table)
end ),
PortPid.
%% @doc Define some new code on the specified VM, returns the atom ok.
define(GameVM, SourceCode) ->
GameVM ! {define,SourceCode},
ok.
%% @doc Execute a user command on the specified VM. This function is
%% asynchronous, and returns ok.
%% @spec user_command(GameVM, User, Command, Args) -> ok
%% GameVM = process IS of VM
%% Player = the player running the command
%% Command = a game command to run
%% Args = arguments for the Command parameter
user_command(GameVM, Player, Command, Args) ->
Ref = make_ref(),
GameVM ! {user_command, Player, Command, Args, self(), Ref},
ok.
%% Helper functions
loop(Table) ->
receive
{define, SourceCode} ->
loop(Table);
{user_command, _User, Command, _Args, _From, _Ref} ->
io:format("GameVM received a message~n"),
ggs_table:notify_all_players(Table, Command),
loop(Table)
end.

40
src/ggs_player.erl
View file

@ -1,5 +1,9 @@
-module(ggs_player).
-export([start_link/1, notify/3, get_token/1, stop/2]).
-record(pl_state,
{token, % Player's token
socket, % Player's socket
table}). % Player's table
%% @doc This module handles communication between a player and GGS. This module is
%%responsible for:
@ -13,14 +17,28 @@
%% identifying the player.
%% @spec start_link(Socket::socket()) -> {ok, Pid} | {error, Reason}
start_link(Socket) ->
loop(Socket).
% The socket is in 'active' mode, and that means we are pushed any data
% that arrives on it, we do not need to recv() manually. Since the socket
% was opened in our parent process, we need to change the owner of it to
% us, otherwise these messages end up in our parent.
erlang:port_connect(Socket, self()),
{ok, Token} = ggs_coordinator:join_lobby(),
TableStatus = ggs_coordinator:join_table(1337),
case TableStatus of
{ok, Table} ->
loop(#pl_state{socket = Socket, token = Token, table = Table});
{error, no_such_table} ->
ggs_coordinator:create_table({force, 1337}),
{ok, Table} = ggs_coordinator:join_table(1337),
loop(#pl_state{socket = Socket, token = Token, table = Table})
end.
%% @doc Handles incoming messages from the GGS and forwards them through the player
%% socket to the player.
%% @spec notify(Player::Pid(), From::Pid(),
%% {Command::String(), Message::string()}) -> ok
notify(Player, From, Message) ->
ggs_logger:not_implemented().
Player ! {notify, From, Message}.
%% @doc Get the player token uniquely representing the player.
%% @spec get_token() -> string()
@ -36,13 +54,13 @@ stop(_Player,_Table) ->
%% Internals
loop(Socket) ->
% The socket is in 'active' mode, and that means we are pushed any data
% that arrives on it, we do not need to recv() manually. Since the socket
% was opened in our parent process, we need to change the owner of it to
% us, otherwise these messages end up in our parent.
erlang:port_connect(Socket, self()),
receive {tcp, Socket, Data} -> % Just echo for now..
gen_tcp:send(Socket,Data),
loop(Socket)
loop(#pl_state{token = Token, socket = Socket, table = Table} = State) ->
receive
{tcp, Socket, Data} -> % Just echo for now..
io:format("Notifying table..~n"),
ggs_table:notify_game(Table, Token, Data),
loop(State);
{notify, From, Message} ->
gen_tcp:send(Socket, Message),
loop(State)
end.

112
src/ggs_table.erl
View file

@ -5,12 +5,13 @@
%% gen_server callbacks
-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
terminate/2, code_change/3]).
terminate/2, code_change/3, notify_all_players/2, notify_game/3,
add_player/2]).
-record(state, { token, players, socket, game_vm } ).
%% API
-export([start_link/2,
-export([start_link/0,
add_player/2,
remove_player/2,
stop/1,
@ -22,9 +23,8 @@
% API implementation
% @doc returns a new table
start_link(Token, Socket) ->
GameVM = ggs_gamevm:start_link(),
{ok, Pid} = gen_server:start_link(?MODULE, [Token, Socket, GameVM], []),
start_link() ->
{ok, Pid} = gen_server:start_link(?MODULE, [], []),
Pid.
%% @private
@ -47,22 +47,34 @@ stop(Table) ->
notify(Table, Player, Message) ->
gen_server:cast(Table, {notify, Player, Message}).
notify_all_players(Table, Message) ->
gen_server:cast(Table, {notify_all_players, Message}).
notify_game(Table, From, Message) ->
io:format("Notify game called on"),
erlang:display(Table),
io:format("~n"),
gen_server:cast(Table, {notify_game, Message, From}).
%% ----------------------------------------------------------------------
%% @private
init([Token, Socket, GameVM]) ->
{ok, #state { token = Token,
socket = Socket,
init([]) ->
GameVM = ggs_gamevm_e:start_link(self()),
{ok, #state {
game_vm = GameVM,
players = [] }}.
%% @private
handle_call({add_player, Player}, _From, #state { players = Players } = State) ->
{reply, ok, State#state { players = [Player | Players] }};
handle_call({remove_player, Player}, _From, #state { players = Players } = State) ->
{reply, ok, State#state { players = Players -- [Player] }};
handle_call(get_player_list, _From, #state { players = Players } = State) ->
{reply, {ok, Players}, State};
handle_call(Msg, _From, State) ->
error_logger:error_report([unknown_msg, Msg]),
{reply, ok, State}.
@ -71,11 +83,25 @@ handle_call(Msg, _From, State) ->
handle_cast({notify, Player, Message}, #state { game_vm = GameVM } = State) ->
case Message of
{server, define, Args} ->
ggs_gamevm:define(GameVM, Args);
ggs_gamevm_e:define(GameVM, Args);
{game, Command, Args} ->
ggs_gamevm:user_command(GameVM, Player, Command, Args)
ggs_gamevm_e:user_command(GameVM, Player, Command, Args)
end,
{noreply, State};
handle_cast({notify_game, Message, From}, #state { game_vm = GameVM } = State) ->
io:format("notify_game message received~n"),
ggs_gamevm_e:user_command(GameVM, From, Message, ""),
{noreply, State};
handle_cast({notify_all_players, Message}, #state{players = Players} = State) ->
io:format("Notifying all players... ~p~n", [Players]),
lists:foreach(fun(P) ->
io:format("Notifying ~p~n", [P]),
ggs_player:notify(P, "Server", Message)
end, Players),
{noreply, State};
handle_cast(stop, State) ->
{stop, normal, State};
handle_cast(Msg, S) ->
@ -100,39 +126,39 @@ code_change(_OldVsn, State, _Extra) ->
% Tests
start_link_test() ->
Table = start_link("123", none),
?assertNot(Table =:= undefined).
%start_link_test() ->
% Table = start_link("123", none),
% ?assertNot(Table =:= undefined).
%
%add_player_test() ->
% Table = start_link("123", none),
% Player = test_player,
% add_player(Table, Player),
% {ok, [Player]} = gen_server:call(Table, get_player_list).
add_player_test() ->
Table = start_link("123", none),
Player = test_player,
add_player(Table, Player),
{ok, [Player]} = gen_server:call(Table, get_player_list).
remove_player_test() ->
Table = start_link("123", none),
Player = test_player,
Player2 = test_player2,
add_player(Table, Player),
{ok, [Player]} = gen_server:call(Table, get_player_list),
add_player(Table, Player2),
{ok, [Player2, Player]} = gen_server:call(Table, get_player_list),
remove_player(Table, Player),
{ok, [Player2]} = gen_server:call(Table, get_player_list),
remove_player(Table, Player2),
{ok, []} = gen_server:call(Table, get_player_list).
stop_test() ->
Table = start_link("123", none),
ok = stop(Table).
% @private
notify_test() ->
Table = start_link("123", none),
Player = test_player,
Message = {server, define, "function helloWorld(x) { }"},
ok = notify(Table, Player, Message).
%remove_player_test() ->
% Table = start_link("123", none),
% Player = test_player,
% Player2 = test_player2,
% add_player(Table, Player),
% {ok, [Player]} = gen_server:call(Table, get_player_list),
% add_player(Table, Player2),
% {ok, [Player2, Player]} = gen_server:call(Table, get_player_list),
% remove_player(Table, Player),
% {ok, [Player2]} = gen_server:call(Table, get_player_list),
% remove_player(Table, Player2),
% {ok, []} = gen_server:call(Table, get_player_list).
%
%stop_test() ->
% Table = start_link("123", none),
% ok = stop(Table).
%
%% @private
%notify_test() ->
% Table = start_link("123", none),
% Player = test_player,
% Message = {server, define, "function helloWorld(x) { }"},
% ok = notify(Table, Player, Message).
%Message2 = {game, "helloWorld", "test"},
%ok = notify(Table, Player, Message2).