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Prettied up yakuman scoring

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Correl Roush 2012-05-08 01:16:41 -04:00
parent 55faf8b96e
commit 2fdf7c8240
1 changed files with 20 additions and 9 deletions
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27
src/riichi.erl
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@ -81,21 +81,32 @@ score_hand(#hand{}=H) ->
score_hand(#hand{}=H, Fu) ->
score_hand(H, Fu, true).
score_hand(#hand{tiles=T, sets=_S}=_H, BaseFu, Limit) ->
score_hand(#hand{}=Hand, BaseFu, Limit) ->
Fu = [
BaseFu
],
Han = [
_DaiSanGen = case sets:is_subset(sets:from_list([{3, #tile{suit=dragon, value=red}}, {3, #tile{suit=dragon, value=white}}, {3, #tile{suit=dragon, value=green}}]), sets:from_list(find_sets(T))) of
true -> 13;
_ -> 0
end,
_Kokushi_Musou = case (lists:flatten([lists:duplicate(12, 1), [2]]) == lists:sort([C || {C, _T} <- find_sets(T)])) and (not lists:any(fun(#tile{value=V}) -> lists:member(V, lists:seq(2,8)) end, T)) of
Yakuman = [
_DaiSanGen = fun(#hand{}=H) ->
Sets = find_sets(H#hand.tiles),
HasRed = lists:member({3, #tile{suit=dragon, value=red}}, Sets),
HasWhite = lists:member({3, #tile{suit=dragon, value=white}}, Sets),
HasGreen = lists:member({3, #tile{suit=dragon, value=green}}, Sets),
case HasRed and HasWhite and HasGreen of
true -> 13;
_ -> 0
end
end,
_Kokushi_Musou = fun(#hand{}=H) ->
Sets = find_sets(H#hand.tiles),
Terminals = not lists:any(fun(#tile{value=V}) -> lists:member(V, lists:seq(2,8)) end, H#hand.tiles),
Orphans = 13 == length([C || {C, _T} <- Sets, C == 1]),
case Terminals and Orphans of
true -> 13;
_ -> 0
end
end
],
score(lists:sum(Fu), lists:sum(Han), Limit).
score(lists:sum(Fu), [F(Hand) || F <- Yakuman], Limit).
find_sets(Tiles) ->
Unique = sets:to_list(sets:from_list(Tiles)),