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20 lines
995 B
Forth
20 lines
995 B
Forth
: next-rpc ( fd -- score-or-false-if-eof )
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pad 4 rot read-line throw ( read next line from file )
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swap 3 = and if ( if read complete round )
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pad 2 + c@ dup 87 - ( score for our hand )
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swap pad c@ - ( difference between hands )
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dup 23 = if drop 3 + else ( 3pts for tie e.g. 'X' - 'A' )
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dup 21 = swap 24 = or if 6 + then ( 6pts for win )
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then
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else false then ; ( false if end-of-file )
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: all-rpcs ( fd -- total-score )
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0 begin ( start with zero score )
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over next-rpc ( read next hand )
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dup if + true then ( add to score if not EOF )
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0= until nip ;
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s" input" r/o open-file throw all-rpcs . cr ( play all rounds in input )
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bye
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