First it was awesome. Now its super-awesome. Keep it up, great work, lots of fun
You should make minimum wind gain less strong. Even 0.1 blows the default tower right away. Maybe make 0.05 the minimum gain, just test it out a bit, so the default tower remains standing
The code update is great, especially the ability to add colors. Dont remove the sliders tho, they are really user-friendly. I have played this game with kids, and they loved testing out all the sliders. Dont remove them, hiding the GUI is totally enough. You could also add a slider for lighting, like color temperature and position of the sun. Another great feature would be a slider for tower corners. Making triagonal and hexagonal towers without coding, just with a slider, would be lots of fun for kids. Keep it up, this is a great game since the first version came out.