Thank you for your comment. I have learned my lesson of trying too much on many things is counter productive - maybe i should have done fewer things with better implementation. :) what do you mean by opening effect? i can post source code of it with no hesitation.
ok, i will create some easy to implement class and post it on github publicly - i have many different effects i planned to release after my main game i am working on is out. but posting the effects takes little to no time, so i will do it in few next days :) (and make the page for my game here on itch - effect of playjam in action - be better about publishing things)