card-to-card speed

Richard Gaskin ambassador at fourthworld.com
Wed Dec 7 11:56:26 EST 2016


A friend of mine has an app where some animations are done by flipping 
through cards.  Speed is variable, set with a "wait <n> milliseconds" 
statement, so the user can view the sequence as quickly or slowly as 
desired.

In versions up through 6.x the speed was quite good, but in v7, 8, and 9 
the speed drops below acceptability.

We did some tests and oddly enough the problem doesn't seem to be with 
card rendering:  when we comment out the "wait" statement speed is 
pretty good. It's maybe a tad slower perceptibly, but still good enough 
for the animation to be viewed meaningfully.

But "wait 1 millisecons" or even "wait 0 milliseconds" takes FAR longer 
in recent versions than in v6.

He has no "...with messages" clause, so any extra time needed for the 
event loop should not be a factor.

Something seems amiss with the "wait" command itself.

He's sending me his stack file so I can winnow it down to a good test 
case, but in the meantime I wanted to ask here:

Have any of you seen unusual delay with "wait" statements in versions 
later than v6?

-- 
  Richard Gaskin
  Fourth World Systems
  Software Design and Development for the Desktop, Mobile, and the Web
  ____________________________________________________________________
  Ambassador at FourthWorld.com                http://www.FourthWorld.com




More information about the Use-livecode mailing list