Main > Driving & Racing Cabinets
Hacking Hydro Thunder..err Offroad Thunder (Updated)
Howard_Casto:
As usual thanks for the info... it saves me a lot of time.
I'm not as familiar with the late era midway stuff.... WTF is a hoop cam?
Btw I may only have a resolution of -2 to 2 for the wheel, but it's a float, so the actual resolution is infinitely larger than that because I can do fractions.
Should I perhaps de-res the joystick value to one byte (0-255) prior to conversion to keep the arcade resolution in tact?
Howard_Casto:
Hey I haven't tried this on the racing cab yet, but did this game already have force feedback? I fired up the hex editor for the exe and there are around 30 clearly labeled force-feedback constants in the game... almost as if there was going to be an adjustment menu. It all seems to eventually be merged into "FFB" and "FFB 2" along with some other clearly labeled outputs like the speedo and shock force.
I'll work on it tonight like I did last night, but it looks like there are already values I can use in the game and, if you don't mind me writing to the exe, I can probably make a cfg menu for all of those FFB constants as well.
BadMouth:
--- Quote from: Howard_Casto on February 11, 2016, 09:18:42 am ---I'm not as familiar with the late era midway stuff.... WTF is a hoop cam?
--- End quote ---
Hoop CAP.
Those crazy folks at Happ call a steering wheel a hoop and a center cap a hoop cap. :P
It does nothing but cover the bolts that hold the wheel onto the adapter.
It's been so long since I tried the MAT3 version on my cab that I can't guarantee it didn't have force feedback, but I'm 99% sure it didn't.
I'm sure I would have remembered a game that had ffb, but didn't have analog control!
This game ran on the same PC as hydro thunder, which we've learned ran on an embedded OS with TNT extenders that allowed windows drivers and commands to work on it.
Maybe they were able to start out with the original code from the arcade game and then modify it to run on a home PC.
Or maybe they started out planning to have it as a feature, then the bigwigs at Midway said "hey we're running out of money, this thing needs to ship today!"
BadMouth:
I wouldn't bother with the 0-255 stuff unless it becomes evident that this PC version contains huge chunks of the actual arcade game code and it's already in there somewhere and just being worked around.
Howard_Casto:
Well this is decidedly 2000-ish windows force feedback. There's even a "vibration.ffe" effect file in the common folder for MAT 3. It looks to me like the game shipped unfinished.
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