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According to johndoe it's correct to pass the entire coordinate,
rather than just X, to the car in these cases as well. I can't
tell any difference at all in the behavior, but I guess it doesn't
hurt either. After all, we can easily zero the Y coordinate, if we
ever want to.
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This is something I found when trying the savegame from bug #6932,
but I still don't know if it actually is that bug.
From what I understand, there are two different cases in the
moveCarToPoint() method: One where you click on a different
section on a track than you're on, and one where you click on the
same section on the track that you're on.
In the latter case, it sends message 0x2004 to the car, which is
then handled by AsCommonCar::handleMessage(). That one will assume
that the parameter is a point, but this can also be encoded as an
integer with 16 bits for the X coordinate and 16 bits for the Y
coordinate. See MessageParam::asPoint().
If we only pass an X coordinate to the message, the Y coordinate
is assumed to be 0, and we do this in a couple of places. I do not
know the exact implications of that, but in the two cases I've
changed here, it meant that clicking on the track below the car
would still make it go up, because it thought you were travelling
towards the top of the screen.
So I think this is the appropriate fix, but even if it is, I do
not know if it's enough or if it should be changed in other places
as well.
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This clears the radio music variable when leaving the room. I've
discussed with johndoe123 and he says this is what the original
does. (You could also get the same effect by clearing it when
entering the room.)
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This also reduces inter-header dependencies
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This splits modules 2700, 2900 and 3000
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Otherwise, every global variable of type NRect requires a constructor to be
run, which can cause portability issue.
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These are shown on each scene change, but should no longer be needed
to be enabled by default, since we can now use the debugger to check
and change the current scene
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