Separate out narration
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143abcf4c1
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@ -21,34 +21,24 @@
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(define elf-self (gensym 'elf))
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(spawn* #:name elf-self
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(let work-industriously ()
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(printf "~a working.\n" elf-self)
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(sleep (/ (random 1000) 1000.0))
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(printf "~a has a problem!\n" elf-self)
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(react (assert (elf-has-a-problem elf-self))
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(stop-when (asserted (problem-resolved elf-self))
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(printf "~a's problem is resolved.\n" elf-self)
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(work-industriously))))))
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(define (reindeer)
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(define reindeer-self (gensym 'reindeer))
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(spawn* #:name reindeer-self
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(let holiday ()
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(printf "~a is on holiday.\n" reindeer-self)
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(sleep (/ (random 9000) 1000.0))
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(printf "~a has returned from holiday and is ready to deliver toys!\n" reindeer-self)
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(react (assert (reindeer-has-returned reindeer-self))
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(stop-when (asserted (deliver-toys))
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(printf "~a delivers toys with the other reindeer.\n" reindeer-self)
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(react
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(stop-when (retracted (deliver-toys))
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(printf "~a has been dismissed by Santa.\n" reindeer-self)
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(react (stop-when (retracted (deliver-toys))
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(holiday))))))))
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(spawn* #:name 'santa
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(define (wait-for-work)
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(react
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(on-start (printf "Santa is waiting for something to do.\n"))
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(define/query-set stuck-elves (elf-has-a-problem $id) id)
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(react (define/query-set stuck-elves (elf-has-a-problem $id) id)
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(define/query-set returned-reindeer (reindeer-has-returned $id) id)
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(stop-when-true (= (set-count (returned-reindeer)) N-REINDEER)
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(harness-reindeer))
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@ -56,9 +46,7 @@
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(talk-to-elves (take (set->list (stuck-elves)) ELF-GROUP-SIZE)))))
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(define (harness-reindeer)
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(react
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(on-start (printf "Santa does the delivery run!\n"))
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(assert (deliver-toys))
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(react (assert (deliver-toys))
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(stop-when (retracted (reindeer-has-returned _))
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(wait-for-work))))
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@ -66,9 +54,7 @@
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(match elves
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['() (wait-for-work)]
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[(cons elf remainder)
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(react
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(on-start (printf "Santa resolves the problem of ~a.\n" elf))
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(assert (problem-resolved elf))
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(react (assert (problem-resolved elf))
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(stop-when (retracted (elf-has-a-problem elf))
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(talk-to-elves remainder)))]))
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@ -76,3 +62,22 @@
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(for [(i N-ELVES)] (elf))
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(for [(i N-REINDEER)] (reindeer))
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(spawn #:name 'narrator
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(during (elf-has-a-problem $id)
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(on-start (printf "~a has a problem!\n" id))
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(on-stop (printf "~a's problem is resolved. ~a returns to work.\n" id id)))
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(on (asserted (reindeer-has-returned $id))
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(printf "~a has returned from holiday and is ready to deliver toys!\n" id))
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(on (retracted (reindeer-has-returned $id))
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(printf "~a delivers toys with the other reindeer.\n" id)
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(react (stop-when (retracted (deliver-toys))
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(printf "~a has been dismissed by Santa, and goes back on holiday.\n" id))))
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(on (asserted (deliver-toys))
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(printf "Santa does the delivery run!\n"))
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(on (asserted (problem-resolved $id))
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(printf "Santa resolves the problem of ~a.\n" id)))
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