Add a way to ensure that multiple rooms have the same seed

[kbuzsaki]

When multiple teams are racing against each other in bingo blackout, they need to make sure that they're all racing using the same board.

This is done by human coordination and can be error prone, so it would be nice to have a built in way to make sure multiple rooms have the same seed.

[Cammymoop]

accidentally mentioned wrong issue

[Cammymoop]

For the purposes of Team blackout bingo, wouldn't being able to hide the other teams' marked goals work better. You wouldn't have to create multiple rooms and there's the possibility of being able to view other teams' progress (assuming that's allowed). edit: I guess without the below enhancement you lose the ability to use multiple colors to help keep track of what you're doing.

Of course it would only work for 5 teams or less. Perhaps as a further enhancement, when a room hides the other teams goals it could allow more than 5 teams and perhaps team names instead of colors. That would basically involve each game having named copies of the board that you could switch between

[kbuzsaki]

I got a similar feature request for "instanced cards" within the same room here: https://twitter.com/Mickely3/status/972577981808988161

That could introduce substantial complexity to the models, especially with keying events off of room. I'll have to think some more about the cleanest way to fill this use case while keeping the complexity manageable.

[Cammymoop]

Yeah I like the idea