Wow


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Posted by Tom61 on 30, 2001 at 12:59 AM:

In Reply to: Light Guns and Mame (corrected easier to see) posted by Reg on 29, 2001 at 10:04 PM:

Wow, seems like a good idea, you've really thought it through. Sounds like a possible solution for Play Choice gun games if nothing else, and would be easy to make multi-platform.

A note on guns mounted on cabs, some like T2 are fancy joysticks, some like Crossbow are just fancy holders for optical guns.

The only problem I forsee with NES guns is that they wouldn't of needed to be very accurate (on 19" TV the target squares were about 2" on duck hunt), and therefore probably aren't. Some of the arcade optical guns were very accurate, and might not work well with a NES gun.

Anyways, looking forward to hearing the reasults!

: Hi,

: Tomorrow I will have access to an oscilloscope...
: to test a NES light gun and see if it can be use with
: most gun games in Mame.

: Until now here are my findings about Light Guns in
: Mame...

: First here is a list of games that support Guns:

:


: Night Stocker (nstocker) Bally/Sente)

: Cheyenne V.1.0 (cheyenne) Exidy
: Chiller V.3.0 (chiller) Exidy
: Clay Pigeon V.2.0 (Claypign) Exidy
: Combat V.3.0 (combat) Exidy
: Crack Shoot V.2.0 (cracksht) Exidy
: CrossBow V.2.0 (crossbow) Exidy
: Hit'n miss V.3.0 (hitnmiss) Exidy
: Hit'n Miss V.2.0 (hitnmis2) Exidy
: Showdown V.3.0 (showdown) Exidy
: Who Dunit V.8.0 (whodunit) Exidy

: Terminator2 JudgmentDay (term2) Midway

: PChoice-10:Duck Hunt (pc_duckh) Nintendo
: PChoice-10:Hogan's Alley(pc_hglaly) Nintendo
: PChoice-10: Wild Gunmen (pc_wgnmn) Nintendo

: Turkey Shoot (tshoot) Williams
:

: I have see most picture of these cabinets and most of
: them have their gun fixed on the cabinet. That mean
: that to move the crosspointer on a target, the gun is
: acting like a big joystick...

: For the trigger Mame already support the Joystick
: button 1 of Player 1,so clicking this button is the
: same as using the trigger of the gun.

: The optics are emulated but not ready to be used as
: is, in Mame without modifying the drivers (like
: Exidy440.c) by example...

: But If someone buy at Ebay a T2 gun by example Mame
: will support it if we hack it with a old joystick for
: the crosshair positionning and use the button 1 of the
: joystick for the gun trigger...

: Mame will work great without the optics...

: Just try a regular joystick to play T2 ot Clay Pigeon
: and you will see...

: If we really want the optics to be implemented, we
: must amplify the output of a Nes Light gun to trigger
: a relay like the one implemented in a CMOS 4069 and
: then trigger button 4 of player 1 of joystick port...

:
: Why Button 4, because buttons 1,2,3 are used by the
: games list previously...

: A light gun is sensing light all the time... when the
: trigger is activated it send a signal to the PC to
: reset their counter and to display a black frame with
: a small wite sursor that moves, when the gun see the
: cursor it send a signal to the pc to stop the counter
: and this way the computer know where the gun was
: pointed...

: So button 4 can be use to tell the computer to
: determine if there was a miss or a hit...

:
: by modifying the Exidy driver most guns games in mame
: will work ..

: and apply the same process for Midway, nintendo and
: Williams...

:
: So in a week or two, I will know if the Nes gun is a
: good choice or not..

: bye
: Reg




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