Hi!

By writing in your code the name of the function
my_robot_function ();
which is in your "robotshowcase.c"

I think that the include should be at the top of your main.c file
under all the other includes
and not in a function.
You where in fact trying to call the actions of your entity with the include
That's not the way to do it. You have to call the name of the function