As for the range thing, it is more correct now. It is the scale itself (the radar screen) is off. Have a looks at the diagram on first page. Basically, the range for radar is 20km, so 20km will begin from the very top of the screen (target begin to show at about 18km 17km away). In the middle of the screen is 10km and below is less than 10km. I'll find a good texturer to fix that soon.
The lock-on zone thing was correct at first, only target inside the 2 horizontal lines are locked, but due to some difficulties, I have to remove the lower boundary. I'll try to re-implemented that somehow...
As for the angle limit, I was waiting so long for someone to comment on that. However, I'm facing a bit of dilemma here. Because one of my (credible) sources tell me other wise, different from what you tell me here, so I'll hold this off, keeping it as is, until it's better decided
As for delay time, I just find that it's not realistic to be able to switch between lock and scan mode readily. So I implemented 5 seconds (in 2.04) delay from switching to tracking mode from scanning mode. Can you look into this? And also refresh rate. 2 second is okay?
Something that can also be adjustable is Scan Range (like above) can be variable (with button press), refresh rate can also be variable.
P/S: Anyone want this?