I considered this option and went the other way for a couple reasons.
It seemed more natural to leave it in one handler. It takes more
lines of code to split the handlers up. I wonder what the overhead is
to have three messages pending as opposed to one.
That said, I think this is the way to go. It solves the display-isn't-
right-for-up-to-two-minutes problem, and the implementation is about
as clean as can be.
I think we may finally be close to the optimum solution.
gc
On Jun 8, 2005, at 9:35 AM, Dennis Brown wrote:
Geoff,
Your new idea gave me an idea. Make three handlers --one for each
hand (I hope I got the hour math straight)
You can find it in my user space (see3d).
Dennis
on openCard
setSeconds; setMinutes; setHours
end openCard
on setSeconds
send setSeconds to me in 1-(the long seconds mod 1) seconds
put the long time into fld "Time" --8:13:15 AM
set the angle of grc "Second" to 450 - ((the seconds * 6) mod 360)
end setSeconds
on setMinutes
send setMinutes to me in 10-(the seconds mod 10) seconds --10
seconds/degree
set the angle of grc "Minute" to 450 - ((the seconds mod 3600)
div 10)
end setMinutes
on setHours
send setHours to me in 120-(the seconds mod 120) seconds --120
seconds/degree
set itemdel to ":"
set the angle of grc "Hour" to 450-(60*item 1 of the time mod 12)
- ((the seconds mod 3600) div 120) --It's UTC if you just use the
seconds here
end setHours
On Jun 8, 2005, at 10:04 AM, Geoff Canyon wrote:
I came up with a radically different approach. Several iterations
ago, we realized that we didn't have to guess when it would be
time to set the clock graphics. We could use 1-(the long seconds
mod 1) to get a message sent exactly when we need it.
Well, we're still guessing at when it's time to move the minute
hand or the hour hand, and we don't need to. The minute hand moves
one degree every ten seconds, the hour hand one degree every two
minutes. The tests to determine this are simple. The natural thing
to do is set the second hand, check to see if the minute hand
needs to be set, and if it does check to see if the hour hand
needs to be set. At each step, I want to exit if appropriate. The
stumbling block was the send...in. I need to get to the end to do it.
Then I realized -- the send...in doesn't have to be the last step.
It can come at any point. So here's the script now:
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