Hey @ReinierTheGhost!
You can check out these tutorials:
to get an idea of how the essential part should look like and implement it to fit your top down scenario. You can also check out the following tutorials of the same series but I think after figuring things out you can implement those extra features better on your own to not go too far off your use case.
Hope this helps! 
Wanned to add this as well, dropped just a few hours ago:
What a coincidence 
