Convert script logic to turn based card game


I made a card game and it works, but it was developed without the turn-based logic as described here:

Is it possible to convert my script logic to the turn-based logic? Is that absolutely necessary?

I am using PunRPCs, PhotonNetwok.Instantiate and PhotonViews which is not recommendable for a turn-based game.

I hope you understand my question.

Thanks for your help