Line Follower Robot on Scratch?

When you click in green flag (go), the little robot start to follow the track line, using eight sensors that detect the black color line.
I try using PID algorithm to almost avoid the oscillations. I will work to improve this.
Link: scratch.mit.ed...
I based the kinetic simulation in the "Simple Car Steering Simulation Tutorial" of
@griffpatch ( • Simple Car Steering Si... ), it is amazing.