In continuing my efforts to make the source code to the editing tools and the actual ProSonic engine tied together, I decided to try making an integrated level editor. This means that while playing the game, you can also modify it all in the same program. This would be useful for developers, but a stripped version of the engine may be the preference for people who just want to play games without actually making them.
I recorded a video and uploaded it to YouTube. You can go here to see it. The level shown in the demo is from StephenUK's excellent "Sonic: Project Chaos" ROM hack.