I want the score(starnum-variable) get 1point up only once...(I made again) sorry...

I want only the score is so up only once.
However, the score is up to each time I visit the slide.
It is something that is create a condition properly but does not work well.
Want to think to know the cause.

when 1 rectangle is hidden!!, 1point have to beed added to starnum!

but it didn't work....