I Found a Bug!!!

OK I'm somewhat excited because while production-ready software is always bug-laden (it tries to do too much with too little support code), but a car should be so matured that it is bug-free.

Try this little experiment with me, OK? It's very easy. If you do it will confirm or deny; maybe I'm just insane. It should work with any MkII cars. It's little, but it's kinda neat.

First, start the car.

Second, turn on the lights.

Third, set your "night mode" brightness to be visibly, obviously darker than your "day mode." If your car is already set up this way, you can skip this step.

Fourth, turn the car off. Then turn the lights off, then turn them back on to the first stop which is corners only.

PAUSE: Now you should be able to get into and out of the car without the corner lights going off. If you get out of the car you can alarm it and the corner lights stay on regardless of locking and unlocking.

Fifth, start the car and turn the lights on (up one click from corners on only). Does the MFD stay in day mode? Does the rest of the car (head-up display and dash lighting) stay in day mode?

I have it down to this: either (1) the car only makes the transition from day to night mode when you cross the first level on the headlight switch (cheaper than having it constantly checking whether the lights are on, but obviously less likely to function perfectly), or (2) I messed something up in my car by performing too many modifications.

~ dan ~

 

LOL <3 Thanks; I'm amazed that I noticed it. I don't remember why I wanted to turn the corner lights back on after I turned the car off. I also don't remember why I left it that way rather than turning them back off after I got out and saw that they were on. It was too weird.

But I'm still really shocked and kinda proud to have found any bug, regardless of how trivial, in such a mature, robust product. Seriously!

~ dan ~

 

I understand and mostly agree with your logic. I would be fine with it being edge-triggered ( IF status changes to ON { nightmode( T ) }; ) except for this weird possibility of "skipping" the line you must cross.

In a video game, that would be the equivalent of some door that only opens after you pass a certain place to just not open. You could spend hours wandering around trying to find the switch for the door, but it just boils down to "you somehow didn't walk over the right line; when you do it'll open."

I think it should be level-triggered also ( WHILE status is ON { nightmode( T ) }; except this may have been more difficult or expensive to do logically. The most I learned about computers was in a CS minor, so I am not exposed to all the ways they could have done this. I suspect the edge-trigger was easier to implement and in almost all practical uses, just as good at getting the work done.

To me it's a bug because the car INTENDS to be in night mode any time you turn the lights on (unless you've got this overridden).

~ dan ~