Good idea... and I think this info is a good thing... (more inside)


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Posted by Howard Casto on 7, 2001 at 1:42 AM:

In Reply to: You Might Cross Post This At The Address Inside For More/Better Results... (More) posted by planetjay on 6, 2001 at 2:48 PM:

If both the expensive and el-cheapo guns use the same method, then the mame programmers might be more willing to write some custom code to support these devices. I don't know alot about the mame drivers for gun games, but this actually sounds farily theisable. All the "active" sprites on the screen would have to have a split second pallette swap to a completely white pallette whenever you hit the fire button. Oh I make it sound so simple..... Uh oh, sickness coming on again, fever raising, pink elephants returning. Oh the horror, the horror!!

: That way you'll have real MAME programmers seeing your discussion/ideas.

: : Hi,

: : your inputs are appreciated...

: : I have found the Patent of the Act Labs Light Gun and the Nintendo Zapper...They quite well explain how each gun works...

: : Both of these guns need a blank frame and a white target...

: : The Act Labs works only on a monitor and they use the synchronization signal of the monitor to increase the precision of the gun...

: : Please do not forgot Mame emulate hardware...

: : I mean by this we can know at which resolution a game is running, the beginning of a frame the end of a frame, we can even synchronize the frames, ...

: : Look in Mame32 the advanced options "Synch to monitor refresh", "Wait for Vertical synch", "Draw every frames"

: : I have checked the game Clay Pigeon Version 2.0 "claypign"

: : you can see a black frame with the white target when you use the Ctrl button to shoot the clay...

: : so I think the implementation can be done with a fair precision.

: : We can solder the gun trigger swith on the Ctrl key of a keyboard controller and send the Gun output (Zapper is the blue wire ) in the Game port.

: : We just need to figure out in Mame how to make this gun work ...

: : I think we are half way...

: : Reg




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