--- In [EMAIL PROTECTED], "Ron Jeffries" wrote:
> > self isStrike ifTrue: [^self sumThreeBalls].
> > self isSpare ifTrue: [^self sumThreeBalls].
> > ^self sumTwoBalls
> >
I scratched it out a little and it looks nice ... I'll probably dump
the 2-class version in favor of it, since it's back to 1 class (and
still the same trivial problem assignment).
Looks a bit like this (pardon the forced indentation). 'frameStart'
gets to be an inst var, everything else is pretty much self-
explanatory. I'm hoping this would show off the rules of bowling a
little more easily.
score
.. | score |
.. .. score := 0.
.. .. frameStart := 1.
.. .. 10 timesRepeat: [
.. .. .. score := score + ( self scoreThisFrame ).
.. .. .. self nextFrame.
.. .. ].
.. ^score
scoreFrame
.. ^ self isStrikeOrSpareHere
.. .. ifTrue: [ self sumThreeRolls ]
.. .. ifFalse: [ self sumTwoRolls ]
nextFrame
.. frameStart := frameStart +
.. .. ( self isStrikeHere
.. .. .. ifTrue: [ 1 ]
.. .. .. ifFalse: [ 2 ] )
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