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brandon:
Also, if anybody has tried playing a lightgun game such as Lethal Enforcers with a analog stick such as a (PS2 gamepad via USB adapter) you'll see that Mame converts the absolute coordinates of the joystick to absolute coordinates in the game.. So I think that this would make 2 player or even 3 player gun games (Beast Busters) easily done. And once it was calibrated it should work at any resolution without need of being recalibrated. of course this is all based on my experimentation with a joystick and not a lightgun.. but in theory it could work. This would also overcome the OS limitations that multiple mice has.. The only thing I wonder about is what "resolution" can a joystick have? could it be as sensitive or accurate as a mouse? maybe Smog can answer this.. What are the downside, if any, of emulating a joystick versus a mouse?

Fozzy The Bear:

--- Quote from: brandon on February 05, 2006, 12:17:18 am --- The only thing I wonder about is what "resolution" can a joystick have? could it be as sensitive or accurate as a mouse? maybe Smog can answer this.. What are the downside, if any, of emulating a joystick versus a mouse?

--- End quote ---

None that I can see.... The current batch of optical encoded joysticks... (top end sidewinder etc etc) do exactly this. Emulate a joystick in hardware while actually being an optical mouse interface. Makes them much more accurate and stable. No joystick jittering.

But I'm still not convinced that this will help us much with MAME. Except in a very few games that might use it, and it's then an issue of interfacing and re-writing things again.

Best Regards,
Julian (Fozzy The Bear)

Smog:

--- Quote ---What are the downside, if any, of emulating a joystick versus a mouse
--- End quote ---

Well ... I think none. One versione of the driver was actually made to install 2 HID devices : 1 mouse and 1 joystick, it worked nice but just one time.... now windows crashes each time I try to force isntall two devices in one ... however ... I don't see downsides at the time we can just try it and see since it is not so much work .
One could choose at installation time if he wants either a mouse or a joystick device. For the control panel/flasher to handle this it will take a bit longer but we can start with driver only.

Regarding the resolution of data, it does not depend by me:
The gun has his own screen / resolution. The range does not depend from video res. So the higher is the number of pixel on the screen the less accurate will be the gun. Meaning that a delta in the gun movement will corrispond to an higher number of px.
The gun's resolution is about 700x250 units, I don't know how you feel with it but, at 640 x480, it is more than one pixel precision on the X and 2 pixel on the Y.

Silver:
Most of the games work fine as is....

the main advantage I can see is that you will always need a special build of mame in windows to support 2 mice. But more than 1 joystick is not problem I believe, so you can have normal mame for 2 player tracking games...

brandon:
I thought that some where one of the guys from EMS said that the resolution of the Topgun was 1024x768? maybe its only appearing to be lower because its emulating the Guncon which would normally be low res on a TV. I guess that's still OK because most arcade games are low res anyway.. I'm just curious if there is some way to make it higher res.

As far as Mame not working with this or needing to be rewritten I don't really see that. as it is most all of the gun games work fine with a joystick already. The ones that didnt work had the simple bug thats been fixed with Silvers compile of Mame. I guess what I'm saying is the games that work correctly in Mame will work with a joystick. and personally, as long as Mame tracks the movements of the gun with the correct coordinates who cares if Mame thinks it a joystick or a mouse as long as the end result is the same?

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