First, I don't know what "?s" is. If it's a variable defined at the
prompt, don't do that. It won't work reliably in Jess 6, and isn't
even possible in Jess 7 (the fact that it's possible in Jess 6 is
unintentional.)
Otherwise, there's nothing wrong here, per se. Every time an update-
scores fact is asserted, the count will be set to a new value. Of
course, once an "update-scores 10" fact exists, you can't assert
another one until the original is retracted, so you might want to do
that in the update-scores rule.
On Jan 31, 2007, at 6:40 AM, M Ismail wrote:
hi,
im trying to add a number to another number which keeps increasing
on every rule
that is what i have:
(defrule fight
(object knife)
=>
(assert (Fight))
(assert (update-scores 10))
(printout t "Fight !" crlf)
)
(defrule update-scores
(update-scores ?c)
=>
(call ?s setAgr (+ (call ?s getAgr) ?c)))
and i want it to be something like:
score starts with 0
and when rule fight is fire then it should add 10 so the final
score is 10
and if another rule is fired it will add also 10 and then the final
score is 20 etc...
how can i do that? what i have now is just replacing and not adding
best regards,
m.ismail
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