Improved cocktail and multi-screen support

[Prinygod]

copied over from bugzilla

Not sure how difficult it would be to add this, but certain games have special viewing requirements. I suggest that mamehub automatically adjust to accommodate these. With cocktail player 2's screen would automatically be flipped so they would be at the bottom. For multi-screens like hard dunk where players 1-3 look at one screen and 3-6 another, 3-6 would see the second screen automaticly. Ideally this should be tied to control swap, so that players wont have to adjust their orientation mid game.

[MisterTea]

is there a command line parameter to flip the screen in csume?

[Prinygod]

well there is a -ror and -rol that rotates the screen 90 degrees, but that wont help a game like space invaders 2 cocktail which expects the second player to be on the other side of a table. i tried using -flipy but that but that actually flips the screen like a mirror image, it even does the ui for some reason. ill look some more to see if i can find what your looking for. Are you not able to change the in game ui via chat commands? I realize this would be very challenging because it would have to be game specific. I had put this request along time ago before i what can an cannot be easily changed.

[MisterTea]

This will be fixed when I add custom command line options.