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Itsuu

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This commit is contained in:
Correl Roush 2012-08-10 21:29:35 -04:00
parent d3220e1906
commit 4438b8bc38
2 changed files with 21 additions and 0 deletions
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13
src/yaku.erl
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@ -13,6 +13,7 @@
pinfu/2,
iipeikou/2,
chanta/2,
itsuu/2,
chiitoitsu/2,
kokushi_musou/2,
ryuu_iisou/2,
@ -100,6 +101,18 @@ chanta(#game{}, #player{hand=#hand{tiles=[], melds=Melds}}) ->
end,
Sets).
%% @doc Returns true for an Itsuu hand
%% Hand must contain a 1-9 run in one suit
-spec itsuu(game(), player()) -> boolean().
itsuu(#game{}, #player{hand=#hand{tiles=[], melds=Melds}}) ->
Tiles = lists:flatten([TS || #meld{type=chii, tiles=TS} <- Melds]),
Runs = [lists:filter(fun(#tile{suit=S, value=V}) -> S =:= Suit end, Tiles)
|| Suit <- [man,sou,pin]],
lists:any(fun(TS) ->
sets:from_list([V || #tile{value=V} <- TS]) =:= sets:from_list(lists:seq(1,9))
end,
Runs).
%% @doc Returns true for a 7-pair hand.
-spec chiitoitsu(game(), player()) -> boolean().
chiitoitsu(#game{}, #player{hand=#hand{tiles=[], melds=Melds}})

8
test/riichi_yaku_tests.erl
View file

@ -52,6 +52,14 @@ chanta_test() ->
#meld{type=chii, tiles=[#tile{suit=man, value=V} || V <- [7,8,9]]}]},
?assertEqual(true, yaku:chanta(#game{}, #player{hand=Hand, drawn={tsumo, #tile{suit=dragon, value=red}}})).
itsuu_test() ->
Hand = #hand{melds=[#meld{type=pair, tiles=lists:duplicate(2, #tile{suit=sou, value=8})},
#meld{type=chii, tiles=[#tile{suit=sou, value=V} || V <- [1,2,3]]},
#meld{type=chii, tiles=[#tile{suit=sou, value=V} || V <- [4,5,6]]},
#meld{type=chii, tiles=[#tile{suit=sou, value=V} || V <- [7,8,9]]},
#meld{type=chii, tiles=[#tile{suit=man, value=V} || V <- [6,7,8]]}]},
?assertEqual(true, yaku:itsuu(#game{}, #player{hand=Hand, drawn={tsumo, #tile{suit=dragon, value=red}}})).
chiitoitsu_test() ->
Hand = #hand{melds=[#meld{type=pair, tiles=lists:duplicate(2, #tile{suit=pin, value=V})} || V <- lists:seq(1,7)]},
?assertEqual(true, yaku:chiitoitsu(#game{}, #player{hand=Hand})).