Here I will teach you how to make a turn-based battle system with an interface. Because there's so many script nodes, I'll just give it all in codes. In the bottom of the tutorial I will show how to customize the codes and what they do. This is only recommended if you are familiar with Map001.
Note: The codes has been updated so it works on newer versions after the char>actor change, but the code explanations are unchanged. The only difference is that Char is now Actor on any code that involves another character than the main character. Some lines might be in a different position than before though.
If you get any trouble, please let me know!