preferans game engine
- deck
- score (3 papers)
- 3 players
- hands []
- position (1,2,3)
- user
- starter (optional)
- replacements: [userid, from-hand, to-hand] (optional)
- currentPlay
- lepeza
- dealRole
- playRole
- bid
- lastBid
- follows
- kontra
- lastKontra
- dealOrder
- dealerPlayer: ref player
- firstPlayer: ref player
- secondPlayer: ref player
- cards (3 x 10)
- talon
- auctions
- discarded
- contract
- accepted: []
- kontra
- value
- throws
- summary