For Each + Trigger Once

Hi guys

I want to do the following:

<img src="https://dl.dropbox.com/u/19082408/ForEach.jpg" border="0" />

For each Sprite when instance variable aaa becomes 0, to add 1 to global variable zzz only once.

Any thoughts how i should do it?

Thanks in advance.

I think it will be ok if you remove the Trigger once condition. And put the add 1 to zzz as an action in the For each Sprite condition.

I'm sure that will give you the result you're looking for.

The problem is i want to add 1 to zz only once. If i put it with For Each event it starts continuously adding.

Store the last value of aaa in another variable then you can check if aaa = 0 and last_aaa not = aaa, add 1 to zzz. At the end of the event sheet, set last_aaa to aaa.

Drop the for each, and change the instance variable back to its original state in the same event.

+on your trigger, set instance variable to 1

+instance variable =1, system add 1 to global variable, instance set variable back to 0

If you need to keep the instance from changing again, add a condition for that.

Here is a tut on how to use for each properly.

Add 1 to zzz

Set aaa to -1

Maby this will help... <img src="smileys/smiley17.gif" border="0" align="middle" />

Thanks for help guys. I thought it can be done only with For Each expression but it seems i was all wrong (not my first time :). Ill defenetly check the tutorial newt, thanks.