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Building a custom arcade setup
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Drnick:
If it comes up Player 1 or Player 2 winner then it may be worth looking into the tool that LeChuck used for his 4-8 way auto switching in Tron. Basically it looks to a particular part of the screen for a particular image and when it sees 1 thing it swaps to 8 way and when it sees something else it changes to 4 way.  I can't think of a reason why this couldn't work for your requirements, It would probably need some tweaking but its as good a place to start as I can think of.

I am working on the assumption that whatever game you choose is in mame.  If it's something else then probably no dice. But the original author may still be able to help you out.
BadMouth:
http://forum.arcadecontrols.com/index.php/topic,117395.msg1243777.html#msg1243777

Increase those puppet post counts!
travoltron:
Hmmm, this looks insanely interesting. I will need to find a game that shows the exact same graphic in the exact same screen area now....off to see the wizard, I suppose.
Unstupid:

--- Quote from: travoltron on March 08, 2013, 03:11:42 pm ---Hi all! I need some help before I start spending loads of money on a project.

--- End quote ---

Yea, you are going about it all wrong.  You are supposed to spend a lot of money on your project, then realize you messed up, then spend a lot more money doing it right!  :D
RyoriNoTetsujin:
Almost all one-on-one fighting games have a counter for how many rounds each player has won -- and they always show up in the same place. (Usually under the health meter bar somewhere.)

If you're going the Tron 4/8-way switching software route, that's what I'd use as the trigger for ticket production (i.e. 2 rounds won = X number of tickets released.) 

The only problem is what happens when one player fights the CPU? You might need a second, conditional trigger for 2 player games... perhaps looking for something other than "Insert Coin" on the 2p side?

Alternatively, a simpler method would be to just require more rounds to be won in a 2p game than a game vs. the CPU. All modern fighters offer this option, as do many games covered in MAME (in their service menus/dipswitch settings.) That way, say for instance, a THIRD round-won icon (on either 1p or 2p side) triggers your ticket mechanism.

It can be done. I don't know the ins and outs of the code required, but if the Tron Switch has shown us anything...
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