I found a way to create a function that can act as a super class in Godot. Node tend to act like classes anyways. I found that it is best to create a node and then attach a script to it. Put all other nodes in script under this node. By doing so, you can write you Gd-script as if its inheriting from a class. I believe under the hood, all nodes are classes. Correct me if I am wrong. Another good advice is to use print() statements to check your objects. if you depending on you script you can access object directly in you node using self.get_child(0). Anyway using the script in the node above you could access a method in any of the lower scripts like this self.get_child(3).test(). Assuming test function exits, you can now use this method to check you game objects. You can also add child nodes like this self.add_child(node) to add to the parent of your current scene.
