ı am new at the ue4 ı was using unity but ı dont understand blueprint system ı should know c++ for the use blueprints or blueprint as like c++ codes
no you dont need to know any c++ in order to use blueprint. knowing a little bit about programming logic does help but since you say you used unity i assume you know a bit about programming.
blueprint is pretty easy to use once your familiar with it. it just consists of connecting nodes and the order you connect them is like where they appear in actual code. each node is basically a small chunk of code to do a task. while blueprint doest have the same functionality as c++ its still quite useful, ive only found a few cases where i really needed c++ and even then could just change the script a bit and solve the issue in blueprint.
thanks for answer 