github/riichi
1
0
Fork 0
mirror of https://github.com/correl/riichi.git synced 2024-11-23 19:19:55 +00:00
Code Issues Projects Releases Packages Wiki Activity

Game server

Browse source
This commit is contained in:
Correl Roush 2013-06-14 23:43:46 -04:00
parent 05363500ec
commit 67aaf62335
14 changed files with 388 additions and 66 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
Makefile
View file

@ -1,6 +1,8 @@
.PHONY: all deps compile test clean
REBAR=rebar
DEPS_PLT=$(CURDIR)/.deps_plt
DEPS=kernel stdlib erts mnesia eunit
all: deps compile
@ -8,9 +10,17 @@ docs:
@$(REBAR) doc
deps:
@$(REBAR) get-deps
@$(REBAR) update-deps
compile: deps
@$(REBAR) compile
$(DEPS_PLT):
dialyzer --output_plt $(DEPS_PLT) --build_plt \
--apps $(DEPS) -r deps
dialyzer: $(DEPS_PLT)
dialyzer --fullpath --plt $(DEPS_PLT) -Wrace_conditions -r ./ebin
test:
@$(REBAR) skip_deps=true eunit
clean:
@$(REBAR) clean
@$(REBAR) delete-deps

7
include/lazy.hrl Normal file
View file

@ -0,0 +1,7 @@
-define(LAZY(Expr), fun() ->
Expr
end).
-define(FORCE(Expr), apply(Expr, [])).

37
include/riichi.hrl
View file

@ -1,9 +1,12 @@
-define(SIMPLES, [#tile{suit=S, value=V} || S <- [pin, man, sou], V <- lists:seq(2,8)]).
-define(TERMINALS, [#tile{suit=S, value=V} || S <- [pin, man, sou], V <- [1,9]]).
-define(DRAGONS, [#tile{suit=dragon, value=V} || V <- [green, red, white]]).
-define(WINDS, [#tile{suit=wind, value=V} || V <- [east, south, west, north]]).
-define(HONOURS, ?DRAGONS ++ ?WINDS).
-define(TILES, ?SIMPLES ++ ?TERMINALS ++ ?HONOURS).
-define(DRAGONS, [green, red, white]).
-define(WINDS, [east, south, west, north]).
-define(T_SIMPLES, [#tile{suit=S, value=V} || S <- [pin, man, sou], V <- lists:seq(2,8)]).
-define(T_TERMINALS, [#tile{suit=S, value=V} || S <- [pin, man, sou], V <- [1,9]]).
-define(T_DRAGONS, [#tile{suit=dragon, value=V} || V <- ?DRAGONS]).
-define(T_WINDS, [#tile{suit=wind, value=V} || V <- ?WINDS]).
-define(T_HONOURS, ?T_DRAGONS ++ ?T_WINDS).
-define(TILES, ?T_SIMPLES ++ ?T_TERMINALS ++ ?T_HONOURS).
%% @type wind() = east | south | west | north
-type wind() :: east | south | west | north.
@ -11,12 +14,15 @@
%% @type dragon() = green | red | white
-type dragon() :: green | red | white.
%% @type suit() = wind | dragon | pin | man | sou
-type suit() :: wind | dragon | pin | man | sou.
%% @type tile() = {tile, Suit, Value, From}
%% Suit = pin | man | sou | wind | dragon
%% Suit = suit()
%% Value = integer() | wind() | dragon()
%% From = draw | wind()
-record(tile, {
suit :: pin | man | sou | wind | dragon,
suit :: suit(),
value :: integer() | wind() | dragon(),
from=draw :: draw | wind()
}).
@ -48,6 +54,7 @@
%% Drawn = none | {tsumo | ron, tile()}
-record(player, {
name :: string(),
pid :: none | pid(),
seat :: wind(),
hand=#hand{} :: hand(),
discards=[] :: [tile()],
@ -57,7 +64,7 @@
%% @type phase() = Phase
%% Phase = draw | discard
-type phase() :: draw | discard.
-type phase() :: start | draw | discard.
%% @type game() = {game, Rounds, Timeout, Round, Turn, Phase, Wall, Rinshan, Dora, Uradora, Players}
%% Rounds = integer()
@ -75,11 +82,11 @@
timeout=infinity :: integer() | infinity,
round=east :: wind(),
turn=east :: wind(),
phase=draw :: phase(),
wall :: [tile()],
rinshan :: [tile()],
dora :: [tile()],
uradora :: [tile()],
players :: [player()]
phase=start :: phase(),
wall=[] :: [tile()],
rinshan=[] :: [tile()],
dora=[] :: [tile()],
uradora=[] :: [tile()],
players=[] :: [player()]
}).
-type game() :: #game{}.

83
src/game.erl Normal file
View file

@ -0,0 +1,83 @@
%% @author Correl Roush <correl@gmail.com>
%%
%% @doc Riichi Mahjong library.
%%
%% @headerfile "../include/riichi.hrl"
-module(game).
-include("riichi.hrl").
-export([new/0,
new/1,
add_player/2,
current_player/1,
position/1,
discards/1,
draw/1,
get_player/2,
update_player/3
]).
%% @doc Creates a new mahjong game, with all 136 tiles shuffled and organized.
-spec new() -> game().
new() ->
Tiles = riichi:shuffle(riichi:tiles()),
#game{rinshan=lists:sublist(Tiles, 1, 4),
dora=lists:sublist(Tiles, 5, 5),
uradora=lists:sublist(Tiles, 10,5),
wall=lists:sublist(Tiles, 15, 124)}.
new(Players) ->
lists:foldl(fun add_player/2, new(), Players).
add_player(_Player, Game = #game{players=Players})
when length(Players) >= 4 ->
throw("Game full");
add_player(Name, Game = #game{players = Players})
when is_list(Name) ->
add_player(#player{name=Name}, Game);
add_player(Player = #player{}, Game = #game{players=Players}) ->
Seats = ?WINDS,
Seat = lists:nth(length(Players) + 1, Seats),
{Tiles, Wall} = lists:split(12, Game#game.wall),
Hand = #hand{tiles=Tiles},
Game#game{wall = Wall,
players=Players ++ [Player#player{seat = Seat, hand = Hand}]}.
current_player(#game{players = Players, turn = Turn}) ->
lists:nth(position(Turn) + 1, Players).
position(Wind) ->
case lists:member(Wind, ?WINDS) of
true ->
length(lists:takewhile(fun(W) ->
W =/= Wind
end,
?WINDS));
_ ->
error(invalid_wind)
end.
discards(#game{turn = Turn} = Game) ->
Player = current_player(Game),
[{discard, Tile, update_player(Game, Turn, Updated)}
|| {discard, Tile, Updated} <- player:discards(Player)].
draw(#game{turn = Turn} = Game) ->
[Tile|Wall] = Game#game.wall,
Player = player:draw(current_player(Game), Tile),
Updated = update_player(Game, Turn, Player),
Updated#game{wall=Wall}.
get_player(#game{players = Players} = Game, Seat) ->
Pos = position(Seat) + 1,
lists:nth(Pos, Players).
update_player(#game{players = Players} = Game, Seat, Player) ->
Pos = position(Seat),
Updated = lists:sublist(Players, Pos)
++ [Player]
++ lists:nthtail(Pos + 1, Players),
Game#game{players = Updated}.

69
src/game_tree.erl Normal file
View file

@ -0,0 +1,69 @@
-module(game_tree).
-include("riichi.hrl").
-include("lazy.hrl").
-export([build/1,
do/2]).
-compile([export_all]).
-record(game_tree, {game, actions}).
-record(game_action, {player, action, arguments}).
-type game_tree() :: #game_tree{}.
-type game_action() :: #game_action{}
| exhaustive_draw.
-define(cond_actions(Expr, Actions), case Expr of
true ->
Actions;
_ ->
[]
end).
-spec(build(game()) -> game_tree()).
build(Game) ->
{game_tree, Game, actions(Game)}.
-spec(actions(game()) -> game_action()).
actions(#game{phase = start, wall = []}) ->
%% No tile remain in the live wall at the start of a player's turn
%% Terminate the game
%% TODO: Score exhaustive draw
exhaustive_draw;
actions(#game{phase = start, turn = Turn} = Game) ->
%% Begin a player's turn by having them draw a tile from the live wall
Updated = game:draw(Game),
[{#game_action{player=Turn, action=draw}, ?LAZY(build(Updated#game{phase=draw}))}];
actions(#game{phase = draw, turn = Turn} = Game) ->
%% This is the player's main turn phase
Player = game:current_player(Game),
lists:flatten([
?cond_actions(riichi_hand:is_complete(Player#player.hand),
[{#game_action{player=Turn, action=tsumo}, Game}]),
[{#game_action{player=Turn, action=discard, arguments=Tile}, ?LAZY(build(Updated#game{phase=discard}))}
|| {discard, Tile, Updated} <- game:discards(Game)]
]);
actions(#game{phase = discard, turn = Turn} = Game) ->
%% TODO: Can any of the players steal the discarded tile?
Updated = Game#game{phase = start, turn = riichi:next(wind, Turn)},
[{#game_action{player=Seat, action=pass}, ?LAZY(build(Updated))}
|| Seat <- [east, south, west, north]];
actions(#game{} = Game) ->
error_logger:error_report([{?MODULE, invalid_game_state},
{game, Game}]),
{error, invalid_game_state}.
-spec(do(game_tree(), game_action()) -> game_tree()).
do(Tree, Action) ->
case proplists:get_value(Action, Tree#game_tree.actions) of
undefined ->
error(invalid_game_action);
Thunk ->
?FORCE(Thunk)
end.

12
src/hand.erl Normal file
View file

@ -0,0 +1,12 @@
-module(hand).
-include("riichi.hrl").
-export([discards/1,
draw/2]).
discards(#hand{tiles=Tiles} = Hand) ->
[{discard, Tile, Hand#hand{tiles = Tiles -- [Tile]}} || Tile <- Tiles].
draw(#hand{tiles = Tiles} = Hand, Tile) ->
Hand#hand{tiles = Tiles ++ [Tile]}.

17
src/lazy.erl Normal file
View file

@ -0,0 +1,17 @@
-module(lazy).
-export([find/2]).
-include("lazy.hrl").
find(Predicate, [H|T]) when is_function(H) ->
Value = ?FORCE(H),
case Predicate(Value) of
true ->
{ok, Value};
_ ->
find(Predicate, T)
end;
find(_Predicate, []) ->
undefined.

26
src/player.erl Normal file
View file

@ -0,0 +1,26 @@
-module(player).
-include("riichi.hrl").
-export([new/0,
new/1,
new/2,
discards/1,
draw/2]).
new() ->
new("Computer").
new(Name) ->
new(Name, player_dummy).
new(Name, Type) ->
{ok, PID} = Type:start_link(Name),
#player{name = Name, pid = PID}.
discards(#player{discards = Discards} = Player) ->
[{discard, Tile, Player#player{hand = Hand, discards = [Tile|Discards]}}
|| {discard, Tile, Hand} <- hand:discards(Player#player.hand)].
draw(#player{hand = Hand} = Player, Tile) ->
Player#player{hand = hand:draw(Hand, Tile)}.

33
src/player_dummy.erl
View file

@ -5,7 +5,7 @@
-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2,
code_change/3]).
-record(state, {name}).
-record(state, {name, game, seat}).
start_link(Name) ->
gen_server:start_link(?MODULE, [Name], []).
@ -13,6 +13,13 @@ start_link(Name) ->
init([Name]) ->
{ok, #state{name=Name}}.
handle_call({choose, Actions}, _From, State) ->
[Action|_] = sort_actions(Actions),
{reply, Action, State};
handle_call(get_name, _From, State) ->
{reply, State#state.name, State};
handle_call(_Msg, _From, State) ->
{noreply, State}.
@ -23,6 +30,15 @@ handle_cast({message, _From, Body}, State) ->
{body, Body}}),
{noreply, State};
handle_cast({action, Seat, Action}, State) ->
error_logger:info_report([game_event,
{seat, Seat},
{action, Action}]),
{noreply, State};
handle_cast({new_state, Game}, State) ->
{noreply, State#state{game=Game}};
handle_cast(_Msg, State) ->
{noreply, State}.
@ -34,3 +50,18 @@ terminate(_Reason, _State) ->
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
sort_actions(Actions) ->
Order = fun({game_action, A, _, _}, {game_action, B, _, _}) ->
Weighted = [ron, tsumo, kan, pon, chi],
Weights = lists:zip(Weighted, lists:reverse(lists:seq(1, length(Weighted)))),
VA = proplists:get_value(A, Weights, 0),
VB = proplists:get_value(B, Weights, 0),
case VA == VB of
true ->
A >= B;
_ ->
VA >= VB
end
end,
lists:sort(Order, Actions).

52
src/riichi.erl
View file

@ -9,9 +9,11 @@
-include("../include/riichi.hrl").
-export([
start/0,
is_valid_tile/1,
is_open/1,
dora/1,
next/2,
nearest/2,
score/3,
score_hand/1,
@ -21,6 +23,9 @@
tiles/0
]).
start() ->
application:start(riichi).
-spec is_valid_tile(tile()) -> boolean().
is_valid_tile(#tile{suit=dragon, value=Value}) ->
lists:member(Value, [white, green, red]);
@ -45,28 +50,33 @@ is_open(#hand{tiles=Tiles, melds=Melds}) ->
orelse lists:any(fun is_open/1, Melds).
-spec dora(tile()) -> tile().
dora(#tile{suit=dragon, value=Value}=Indicator) ->
case Value of
white -> Indicator#tile{value=green};
green -> Indicator#tile{value=red};
red -> Indicator#tile{value=white}
end;
dora(#tile{suit=wind, value=Value}=Indicator) ->
case Value of
east -> Indicator#tile{value=south};
south -> Indicator#tile{value=west};
west -> Indicator#tile{value=north};
north -> Indicator#tile{value=east}
end;
dora(#tile{value=Value}=Indicator) ->
dora(#tile{suit = Suit, value = Value} = Indicator) ->
case is_valid_tile(Indicator) of
false ->
throw({error, invalid_tile});
_ ->
if
Value == 9 -> Indicator#tile{value=1};
true -> Indicator#tile{value=Value + 1}
end
true ->
Next = next(Suit, Value),
Indicator#tile{value = Next};
_ ->
throw({error, invalid_tile})
end.
-spec next(suit(), term()) -> term().
next(dragon, Value) ->
case Value of
white -> green;
green -> red;
red -> white
end;
next(wind, Value) ->
case Value of
east -> south;
south -> west;
west -> north;
north -> east
end;
next(_Suit, Value) when is_integer(Value) ->
case Value < 9 of
true -> Value + 1;
_ -> 1
end.
-spec nearest(integer(), integer()) -> integer().

20
src/riichi_game.erl
View file

@ -1,20 +0,0 @@
%% @author Correl Roush <correl@gmail.com>
%%
%% @doc Riichi Mahjong library.
%%
%% @headerfile "../include/riichi.hrl"
-module(riichi_game).
-include("../include/riichi.hrl").
-export([new/0]).
%% @doc Creates a new mahjong game, with all 136 tiles shuffled and organized.
-spec new() -> game().
new() ->
Tiles = riichi:shuffle(riichi:tiles()),
#game{rinshan=lists:sublist(Tiles, 1, 4),
dora=lists:sublist(Tiles, 5, 5),
uradora=lists:sublist(Tiles, 10,5),
wall=lists:sublist(Tiles, 15, 124)}.

70
src/server_game.erl Normal file
View file

@ -0,0 +1,70 @@
-module(server_game).
-behaviour(gen_fsm).
-export([start_link/0]).
-export([waiting/3,
playing/2,
turn/2]).
-export([init/1, handle_event/3, handle_sync_event/4, handle_info/3, terminate/3]).
-include("../include/riichi.hrl").
-record(state, {players=[]}).
start_link() ->
gen_fsm:start_link(?MODULE, [], []).
init([]) ->
{ok, waiting, #state{}}.
waiting({add_player, Player}, _From, State) ->
error_logger:info_report({adding_player, [{player, Player}]}),
Players = [Player|State#state.players],
case length(Players) of
4 ->
Game = game:new(Players),
error_logger:info_report({starting_game, []}),
gen_fsm:send_event(self(), game_tree:build(Game)),
{reply, ok, playing, Game};
_ -> {reply, ok, waiting, State#state{players=Players}}
end.
playing({game_tree, Game, Branches} = Tree, State) ->
Actions = proplists:get_keys(Branches),
[gen_server:cast(Player#player.pid, {new_state, Game}) || Player <- Game#game.players],
[Choice|_] = lists:flatten(lists:map(fun(Seat) ->
Player = game:get_player(Game, Seat),
PlayerActions = [A || A = {game_action, W, _, _} <- Actions,
W =:= Seat],
case PlayerActions of
[] ->
[];
_ ->
[gen_server:call(Player#player.pid, {choose, PlayerActions})]
end
end,
[east, south, west, north])),
error_logger:info_report([resolving_choice, {chosen, Choice}, {valid, Actions}]),
gen_fsm:send_event(self(), game_tree:do(Tree, Choice)),
{next_state, playing, State}.
turn(start, Game) ->
error_logger:info_report({starting_turn, Game#game.turn}),
{next_state, start, Game}.
handle_event(Event, StateName, State) ->
io:format("Unexpected ~p during ~p", [Event, StateName]),
{next_state, StateName, State}.
handle_sync_event(Event, _From, StateName, State) ->
io:format("Unexpected ~p during ~p", [Event, StateName]),
{next_state, StateName, State}.
handle_info(_Info, StateName, State) ->
{next_state, StateName, State}.
terminate(Reason, StateName, _State) ->
error_logger:error_report([terminating,
{from_state, StateName},
{reason, Reason}]),
ok.

14
src/yaku.erl
View file

@ -106,7 +106,7 @@ iipeikou(#game{}, #player{hand=#hand{melds=Melds}}) ->
chanta(#game{}, #player{hand=#hand{tiles=[], melds=Melds}}) ->
Sets = [[{T#tile.suit, T#tile.value} || T <- Tiles]
|| #meld{tiles=Tiles} <- Melds],
ChantaTiles = [{T#tile.suit, T#tile.value} || T <- (?TERMINALS ++ ?HONOURS)],
ChantaTiles = [{T#tile.suit, T#tile.value} || T <- (?T_TERMINALS ++ ?T_HONOURS)],
lists:all(fun(Tiles) ->
(Tiles -- ChantaTiles =/= Tiles)
end,
@ -183,7 +183,7 @@ shou_san_gen(#game{}, #player{hand=#hand{melds=Melds}}) ->
%% @doc Returns true for a Honrouto hand
honrouto(#game{}, #player{hand=Hand}) ->
IsHonour = fun(T) ->
lists:member(T, ?HONOURS ++ ?TERMINALS)
lists:member(T, ?T_HONOURS ++ ?T_TERMINALS)
end,
lists:all(IsHonour, riichi_hand:tiles(Hand)).
@ -200,14 +200,14 @@ honitsu(#game{}, #player{hand=Hand}) ->
Suits = sets:to_list(sets:from_list([Suit || #tile{suit=Suit} <- Tiles,
lists:member(Suit, [pin, sou, man])])),
IsHonour = fun(T) ->
lists:member(T, ?HONOURS)
lists:member(T, ?T_HONOURS)
end,
length(Suits) == 1 andalso lists:any(IsHonour, Tiles).
%% @doc Returns true for a Jun chan hand.
jun_chan(#game{}, #player{hand=#hand{melds=Melds}}) ->
IsTerminal = fun(T) ->
lists:member(T, ?TERMINALS)
lists:member(T, ?T_TERMINALS)
end,
HasTerminal = fun(#meld{tiles=Tiles}) ->
lists:any(IsTerminal, Tiles)
@ -226,7 +226,7 @@ chinitsu(#game{}, #player{hand=Hand}) ->
Suits = sets:to_list(sets:from_list([Suit || #tile{suit=Suit} <- Tiles,
lists:member(Suit, [pin, sou, man])])),
IsHonour = fun(T) ->
lists:member(T, ?HONOURS)
lists:member(T, ?T_HONOURS)
end,
length(Suits) == 1 andalso not lists:any(IsHonour, Tiles).
@ -265,13 +265,13 @@ suu_an_kou(#game{}, #player{hand=#hand{melds=Melds}}) ->
tsu_iisou(#game{}, #player{hand=Hand}) ->
IsHonour = fun(T) ->
lists:member(T, ?HONOURS)
lists:member(T, ?T_HONOURS)
end,
lists:all(IsHonour, riichi_hand:tiles(Hand)).
chinrouto(#game{}, #player{hand=Hand}) ->
IsTerminal = fun(T) ->
lists:member(T, ?TERMINALS)
lists:member(T, ?T_TERMINALS)
end,
lists:all(IsTerminal, riichi_hand:tiles(Hand)).

2
test/riichi_yaku_tests.erl
View file

@ -161,7 +161,7 @@ chinitsu_test() ->
?assertEqual(true, yaku:chinitsu(#game{}, #player{hand=Hand, drawn={tsumo, #tile{suit=sou, value=1}}})).
kokushi_musou_test() ->
Hand = #hand{tiles=?TERMINALS ++ ?HONOURS -- [#tile{suit=pin, value=1}],
Hand = #hand{tiles=?T_TERMINALS ++ ?T_HONOURS -- [#tile{suit=pin, value=1}],
melds=[#meld{type=pair, tiles=lists:duplicate(2, #tile{suit=pin, value=1})}]},
?assertEqual(true, yaku:kokushi_musou(#game{}, #player{hand=Hand})).