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allow universe handlers to return state of universe, not just bundle

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This commit is contained in:
Matthias Felleisen 2014-09-27 20:14:55 -06:00
parent 8cfa68b647
commit 5da9f42319
1 changed files with 5 additions and 2 deletions
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7
pkgs/htdp-pkgs/htdp-lib/2htdp/private/universe.rkt
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@ -90,13 +90,16 @@
(define nxt (name (send universe get) a ...))
(cond
[(stop-the-world? nxt) (stop! (stop-the-world-world nxt))]
[else
[(bundle? nxt)
(define-values (u mails bad)
(bundle> n nxt))
(send universe set (format "value returned from ~a" 'name) u)
(unless (boolean? to-string) (send gui add (to-string u)))
(broadcast mails)
(for-each (lambda (iw) (kill iw "disconnected ~a")) bad)])))))
(for-each (lambda (iw) (kill iw "disconnected ~a")) bad)]
[else ;; plain universe state
(send universe set (format "value returned from ~a" 'name) nxt)
(unless (boolean? to-string) (send gui add (to-string nxt)))])))))
;; [Listof Mail] -> Void
;; send payload of messages to designated worlds