How to delay something in a for loop?

Getting Started Newbie Questions
#1

How to delay a for loop? In example:
for i = 1, 11 do
   whiterect.alpha = whitelevel
   --delay(time), wait(time) or something like that.
   whitelevel = whitelevel + 0.1
end
 
I tried:
for i = 1, 11 do
   whiterect.alpha = whitelevel
   timer.performWithDelay(500)
   whitelevel = whitelevel + 0.1
end
This did not work. I mean it didn’t give me any errors but it just flashed into place. I apologize if this is really newbie stuff but I’m new to corona. Basically I’m attempting to have a white rectangle fade in.

#2

If you want to have a white rectangle fade in, you should use the transition library (http://docs.coronalabs.com/api/library/transition/index.html).  You could simply do:

[lua]

whiterect.alpha=0

transition.to(whiterect, {time=500, delay=1000, alpha=1})

[/lua]

This will fade in the whiterect over half a second (500 milliseconds) after first waiting for 1 second (1000 milliseconds).

  • Andrew
#3

Thanks, this worked. :slight_smile:

#4

If you want to have a white rectangle fade in, you should use the transition library (http://docs.coronalabs.com/api/library/transition/index.html).  You could simply do:

[lua]

whiterect.alpha=0

transition.to(whiterect, {time=500, delay=1000, alpha=1})

[/lua]

This will fade in the whiterect over half a second (500 milliseconds) after first waiting for 1 second (1000 milliseconds).

  • Andrew
#5

Thanks, this worked. :slight_smile: