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San kan tsu

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This commit is contained in:
Correl Roush 2012-08-14 20:16:06 -04:00
parent 5540ffe974
commit a94e1a4e8d
2 changed files with 15 additions and 0 deletions
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7
src/yaku.erl
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@ -17,6 +17,7 @@
chiitoitsu/2,
san_shoku_doujun/2,
san_shoku_douko/2,
san_kan_tsu/2,
kokushi_musou/2,
ryuu_iisou/2,
dai_san_gen/2]).
@ -140,6 +141,12 @@ san_shoku_douko(#game{}, #player{hand=#hand{melds=Melds}=Hand}) ->
Pons = [M || #meld{type=pon} = M <- Melds],
lists:any(fun(M) -> san_shoku(M, Hand) end, Pons).
%% @doc Returns true for a San kan tsu hand
%% Hand must contain three kans
san_kan_tsu(#game{}, #player{hand=#hand{melds=Melds}}) ->
Kans = [M || M = #meld{type=kan} <- Melds],
length(Kans) =:= 3.
%% @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

@ -76,6 +76,14 @@ san_shoku_douko_test() ->
#meld{type=chii, tiles=[#tile{suit=man, value=V} || V <- [6,7,8]]}]},
?assertEqual(true, yaku:san_shoku_douko(#game{}, #player{hand=Hand, drawn={tsumo, #tile{suit=dragon, value=red}}})).
san_kan_tsu_test() ->
Hand = #hand{melds=[#meld{type=pair, tiles=lists:duplicate(2, #tile{suit=sou, value=8})},
#meld{type=kan, tiles=[#tile{suit=sou, value=V} || V <- [1,1,1,1]]},
#meld{type=kan, tiles=[#tile{suit=man, value=V} || V <- [1,1,1,1]]},
#meld{type=kan, tiles=[#tile{suit=pin, value=V} || V <- [1,1,1,1]]},
#meld{type=chii, tiles=[#tile{suit=man, value=V} || V <- [6,7,8]]}]},
?assertEqual(true, yaku:san_kan_tsu(#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})).