hat should I do if I want to add my own events to Gd (not extensions)
Extensions/Functions are made for that, so please explain why they are not suited in your case.
I want them to be like the original GD event，of course, it’s just an idea
Well, I guess you would need to work on the source code of GDevelop and compile GDevelop yourself.
I don’t know how to modify it. Can you give me some advice
It’s quite complex, I’m afraid.
See here for details: GDevelop/README.md at master · 4ian/GDevelop · GitHub