Or, just get EMU+ (nt)


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Posted by jh on 13, 2000 at 12:17 PM:

In Reply to: Auto rapid fire buttons? posted by Druin on 13, 2000 at 12:13 PM:

: I was just playing a game and thought, too bad this joystick doesn't have any turbo fire buttons. Then I thought, how stupid of me, I can add that easily.
: I remember the Nintendo days when I got the turbo button fire joystick and was able to shoot at maximum efficiency while holding the button down. I think I might like that type of feature in a control panel for playing games like Gradius, where there's 2 fire buttons that I need to continuously press for fire and missle.

: I know certain games would lose their feel by using rapid fire, like Twin Cobra, I'd rather stand there bashing the buttons for the duration of the game than just cheat and hold down the fire button on auto, but games like gradius I think I'd like to have it auto fire at least one of the buttons for me.

: Then I was also think about that other quest to use one button to activate 3 buttons. It would probably make Gradius ok if I could use that technique and do the missle and main fire with just one button. I wonder if there's a way to do some advanced button mapping electronically so that I could route certain buttons to do more than just the one hard wired task of triggering a certain keyboard switch. Like on the fly routing of one button to start activating 2 or 3 keyboard inputs at once, and on the fly turbo firing routed to any given button.

: Would anyone else generally like to have some auto rapid firing on some of their games? I think I'm going to whip up a schematic for some rapid firing. There's a MILLION ways to do this. Building from the general technique of using one of the IC switches like the 4066 chip again, and having the real switch trigger the chip, which triggers the keyboard encoder, instead of feeding the 4066 chip with the arcade button, you wire it to an oscillator (that's what can be done a million ways) and then you control the frequency of the oscillator with either a variable resistor dial, or maybe some digital up-down rate increment buttons, and then the 4066 switch keeps getting auto pressed while the arcade button turns the oscillator on & off.
: I'll draw a few different logic gate oscillators using Inverters, or And gates, Nand gates, or Or gates, which can all be wired to act like inverters, as well as maybe some other chips like the old 555 timer IC, just to show some different ways to do realistic speed oscillators suitable for rapid fire, maybe even write up a page about it on my site with the fundamentals so people can catch the theory, take some building block circuits, and apply them after learning what is needed to make it work properly.

: I'll link something up when I'm done (Don't know when, tonight is a pub crawl!)




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