Thanks for the enthusiasm my friend, but I already beat you to the punch. 
Chronicler is a flowchart designer for CS that generates the code for you, and I’ve been working on it for two years to get it to its current state, so I would imagine that it would be difficult to complete another editor in time for the contest. I’m not discouraging you from trying though, healthy competition is always a good thing!
Alternatively, I’m looking for developers willing to help make Chronicler better.
As for legal issues, CoG has lightly encouraged my efforts, and I’ve kept the program itself open-source. It’s also developed with Qt which is a cross-platform C++ library.