updated todo list

2012-02-27 11:57:40 -05:00 · 2012-02-27 11:57:40 -05:00 · 1d894852a4
commit 1d894852a4
parent a75a18637d
1 changed files with 3 additions and 0 deletions
--- a/collects/2htdp/universe.rkt
+++ b/collects/2htdp/universe.rkt
@ -8,6 +8,9 @@
 #| TODO: 
   -- run callbacks in user eventspace
   -- make timer fire just once; restart after on-tick callback finishes
+          [on-tick tick-handler tick-producer tick-limit]
+          tick-producer: World -> PositiveNumber 
+          allow the time span to be a function of the world state 
   -- take out counting; replace by 0.25 delay

   -- make window resizable :: why