It's a good framework, I might consider keeping an eye on this project, to see which way this project ends up going.
There's not much at all going on at this moment, the gameplay is very basic.
Have you considered any alternatives to just waiting for your mana to regenerate, opening your inventory to use potions all the time might get annoying in the long run when you even have them, and waiting around and watching a counter go up isn't much fun.