Can onComplete in transition.to cause Recursion?

Audio and Graphics
#1

If I do this:

local function foo() -- something happens here transition.to (someObj, {time=1000, x=100, onComplete=foo }) end

…is that a recursive call? I’m thinking it’s not, that onComplete makes the call after foo has returned, but I need to make sure.

 Jay

#2

It’s not a recursive function, but yes - the transition will be re-fired after the first one completes. You might find that the parameter iterations=0 might cause infinite looping, if that’s what you want (but I haven’t checked.)

Gotcha: I think the function ‘foo’ needs to be declared as a variable before the function is created because within the function the function name has not yet been constructed, which means the onComplete=foo will evaluate to onComplete=nil, and so the re-fire will not happen. You would want something like:

local foo foo = function() -- something happens here transition.to (someObj, {time=1000, x=100, onComplete=foo }) end
#3

Thanks, Horace. I hadn’t run into the “chicken and egg” problem because my IDE automatically creates forward declarations for all my functions.

I’ve been running into a stack overflow issue and am just trying to make sure it’s not the onComplete in the transition.to that’s the problem.

 Jay

#4

Does the overflow still happen if the function is called on a timer instead of onComplete?

#5

It’s not a recursive function, but yes - the transition will be re-fired after the first one completes. You might find that the parameter iterations=0 might cause infinite looping, if that’s what you want (but I haven’t checked.)

Gotcha: I think the function ‘foo’ needs to be declared as a variable before the function is created because within the function the function name has not yet been constructed, which means the onComplete=foo will evaluate to onComplete=nil, and so the re-fire will not happen. You would want something like:

local foo foo = function() -- something happens here transition.to (someObj, {time=1000, x=100, onComplete=foo }) end
#6

Thanks, Horace. I hadn’t run into the “chicken and egg” problem because my IDE automatically creates forward declarations for all my functions.

I’ve been running into a stack overflow issue and am just trying to make sure it’s not the onComplete in the transition.to that’s the problem.

 Jay

#7

Does the overflow still happen if the function is called on a timer instead of onComplete?