Yes, it may be hardcoded. So, it's a future improvment to do !! I will suggest it to h.sie, I believe he'll be interested in ... I've already suggest him another improvments like no seagulls at night.
Now, i would like to understand several things :
What do these parameters change in game ? :
- Sonar already tracking modifier
- Sonar decay time
- Detection time
- Speed factor
- Lose time