Fade transition

Hello

I'm simulating the transition between young to adult Tree

To give it a smoother effect, im using the fade effect for both objects,

Example:

Condition: TreeA has energy 30) = Event: TreeA starts Fade (fade out), TreeA spawns TreeB (which fades in automatically)

Problem is that it spawns a huge amount of TreesB! not just 1, i've tried using the command " only first time" but it makes the other event null as well.

Is there a way to archive the desired effect without spawning a whole forest?

You are spawning an instance of treeB every tick treeA has energy 30.

And because you haven't picked an instance of treeA all instances of treeA will spawn.

add a trigger once while true condition and if you have more trees on your layout you should add a for each treeA condition.