Player actions, playable cards

Sources/App/Extensions/Array+Extensions.swift

@@ -8,4 +8,8 @@ extension Array {
         }
         return Array(self[index..<count] + self[0..<index])
     }
+
+    func sorted<T>(by converting: (Element) -> T) -> [Element] where T: Comparable {
+        sorted { converting($0) < converting($1) }
+    }
 }

Sources/App/Infos/CardInfo.swift

@@ -0,0 +1,8 @@
+import Foundation
+
+struct CardInfo: Codable, Equatable {
+
+    let card: CardId
+
+    let playable: Bool
+}

Sources/App/Management/Database.swift

@@ -76,7 +76,7 @@ final class Database {
      - Parameter isPublic: Indicates that this is a game joinable by everyone
      - Returns: The table id
      */
-    func createTable(named name: TableName, player: PlayerName, isPublic: Bool) -> TableId {
+    func createTable(named name: TableName, player: PlayerName, isPublic: Bool) -> TableInfo {
         tables.createTable(named: name, player: player, isPublic: isPublic)
     }
 
@@ -105,4 +105,11 @@ final class Database {
         }
         return tables.performAction(player: player, action: action)
     }
+
+    func play(card: Card, playerToken: SessionToken) -> PlayCardResult {
+        guard let player = players.registeredPlayerExists(withSessionToken: playerToken) else {
+            return .invalidToken
+        }
+        return tables.play(card: card, player: player)
+    }
 }

Sources/App/Management/TableManagement.swift

@@ -90,12 +90,12 @@ final class TableManagement: DiskWriter {
      - Parameter isPublic: Indicates that this is a game joinable by everyone
      - Returns: The table id
      */
-    func createTable(named name: TableName, player: PlayerName, isPublic: Bool) -> TableId {
+    func createTable(named name: TableName, player: PlayerName, isPublic: Bool) -> TableInfo {
         let table = Table(newTable: name, isPublic: isPublic)
-        _ = table.add(player: name)
+        _ = table.add(player: player)
         tables[table.id] = table
         writeTableToDisk(table: table)
-        return table.id
+        return table.compileInfo(for: player)!
     }
     
     /// A list of all public tables
@@ -171,4 +171,11 @@ final class TableManagement: DiskWriter {
         }
         return table.perform(action: action, forPlayer: player)
     }
+
+    func play(card: Card, player: PlayerName) -> PlayCardResult {
+        guard let table = currentTable(for: player) else {
+            return .noTableJoined
+        }
+        return table.play(card: card, player: player)
+    }
 }

Sources/App/Model/Dealer.swift

@@ -1,294 +1,5 @@
 import Foundation
 
-private let wenzCardOder = [
-    Card(.eichel, .unter),
-    Card(.blatt, .unter),
-    Card(.herz, .unter),
-    Card(.schelln, .unter),
-    Card(.herz, .ass),
-    Card(.herz, .zehn),
-    Card(.herz, .könig),
-    Card(.herz, .ober),
-    Card(.herz, .neun),
-    Card(.herz, .acht),
-    Card(.herz, .sieben),
-    Card(.eichel, .ass),
-    Card(.eichel, .zehn),
-    Card(.eichel, .könig),
-    Card(.eichel, .ober),
-    Card(.eichel, .neun),
-    Card(.eichel, .acht),
-    Card(.eichel, .sieben),
-    Card(.blatt, .ass),
-    Card(.blatt, .zehn),
-    Card(.blatt, .könig),
-    Card(.blatt, .ober),
-    Card(.blatt, .neun),
-    Card(.blatt, .acht),
-    Card(.blatt, .sieben),
-    Card(.schelln, .ass),
-    Card(.schelln, .zehn),
-    Card(.schelln, .könig),
-    Card(.schelln, .ober),
-    Card(.schelln, .neun),
-    Card(.schelln, .acht),
-    Card(.schelln, .sieben),
-]
-
-private let geierCardOrder = [
-    Card(.eichel, .ober),
-    Card(.blatt, .ober),
-    Card(.herz, .ober),
-    Card(.schelln, .ober),
-    Card(.herz, .ass),
-    Card(.herz, .zehn),
-    Card(.herz, .könig),
-    Card(.herz, .unter),
-    Card(.herz, .neun),
-    Card(.herz, .acht),
-    Card(.herz, .sieben),
-    Card(.eichel, .ass),
-    Card(.eichel, .zehn),
-    Card(.eichel, .könig),
-    Card(.eichel, .unter),
-    Card(.eichel, .neun),
-    Card(.eichel, .acht),
-    Card(.eichel, .sieben),
-    Card(.blatt, .ass),
-    Card(.blatt, .zehn),
-    Card(.blatt, .könig),
-    Card(.blatt, .unter),
-    Card(.blatt, .neun),
-    Card(.blatt, .acht),
-    Card(.blatt, .sieben),
-    Card(.schelln, .ass),
-    Card(.schelln, .zehn),
-    Card(.schelln, .könig),
-    Card(.schelln, .unter),
-    Card(.schelln, .neun),
-    Card(.schelln, .acht),
-    Card(.schelln, .sieben),
-]
-
-private let eichelCardOrder = [
-    Card(.eichel, .ober),
-    Card(.blatt, .ober),
-    Card(.herz, .ober),
-    Card(.schelln, .ober),
-    Card(.eichel, .unter),
-    Card(.blatt, .unter),
-    Card(.herz, .unter),
-    Card(.schelln, .unter),
-    Card(.eichel, .ass),
-    Card(.eichel, .zehn),
-    Card(.eichel, .könig),
-    Card(.eichel, .neun),
-    Card(.eichel, .acht),
-    Card(.eichel, .sieben),
-    Card(.blatt, .ass),
-    Card(.blatt, .zehn),
-    Card(.blatt, .könig),
-    Card(.blatt, .neun),
-    Card(.blatt, .acht),
-    Card(.blatt, .sieben),
-    Card(.herz, .ass),
-    Card(.herz, .zehn),
-    Card(.herz, .könig),
-    Card(.herz, .neun),
-    Card(.herz, .acht),
-    Card(.herz, .sieben),
-    Card(.schelln, .ass),
-    Card(.schelln, .zehn),
-    Card(.schelln, .könig),
-    Card(.schelln, .neun),
-    Card(.schelln, .acht),
-    Card(.schelln, .sieben),
-]
-
-private let blattCardOrder = [
-    Card(.eichel, .ober),
-    Card(.blatt, .ober),
-    Card(.herz, .ober),
-    Card(.schelln, .ober),
-    Card(.eichel, .unter),
-    Card(.blatt, .unter),
-    Card(.herz, .unter),
-    Card(.schelln, .unter),
-    Card(.blatt, .ass),
-    Card(.blatt, .zehn),
-    Card(.blatt, .könig),
-    Card(.blatt, .neun),
-    Card(.blatt, .acht),
-    Card(.blatt, .sieben),
-    Card(.eichel, .ass),
-    Card(.eichel, .zehn),
-    Card(.eichel, .könig),
-    Card(.eichel, .neun),
-    Card(.eichel, .acht),
-    Card(.eichel, .sieben),
-    Card(.herz, .ass),
-    Card(.herz, .zehn),
-    Card(.herz, .könig),
-    Card(.herz, .neun),
-    Card(.herz, .acht),
-    Card(.herz, .sieben),
-    Card(.schelln, .ass),
-    Card(.schelln, .zehn),
-    Card(.schelln, .könig),
-    Card(.schelln, .neun),
-    Card(.schelln, .acht),
-    Card(.schelln, .sieben),
-]
-
-private let schellnCardOrder = [
-    Card(.eichel, .ober),
-    Card(.blatt, .ober),
-    Card(.herz, .ober),
-    Card(.schelln, .ober),
-    Card(.eichel, .unter),
-    Card(.blatt, .unter),
-    Card(.herz, .unter),
-    Card(.schelln, .unter),
-    Card(.schelln, .ass),
-    Card(.schelln, .zehn),
-    Card(.schelln, .könig),
-    Card(.schelln, .neun),
-    Card(.schelln, .acht),
-    Card(.schelln, .sieben),
-    Card(.eichel, .ass),
-    Card(.eichel, .zehn),
-    Card(.eichel, .könig),
-    Card(.eichel, .neun),
-    Card(.eichel, .acht),
-    Card(.eichel, .sieben),
-    Card(.blatt, .ass),
-    Card(.blatt, .zehn),
-    Card(.blatt, .könig),
-    Card(.blatt, .neun),
-    Card(.blatt, .acht),
-    Card(.blatt, .sieben),
-    Card(.herz, .ass),
-    Card(.herz, .zehn),
-    Card(.herz, .könig),
-    Card(.herz, .neun),
-    Card(.herz, .acht),
-    Card(.herz, .sieben),
-]
-
-private let wenzSortIndex: [Card : Int] =  {
-    wenzCardOder.enumerated().reduce(into: [:]) { $0[$1.element] = $1.offset }
-}()
-
-private let geierSortIndex: [Card : Int] =  {
-    geierCardOrder.enumerated().reduce(into: [:]) { $0[$1.element] = $1.offset }
-}()
-
-private let eichelSortIndex: [Card : Int] =  {
-    eichelCardOrder.enumerated().reduce(into: [:]) { $0[$1.element] = $1.offset }
-}()
-
-private let blattSortIndex: [Card : Int] =  {
-    blattCardOrder.enumerated().reduce(into: [:]) { $0[$1.element] = $1.offset }
-}()
-
-private let schellnSortIndex: [Card : Int] =  {
-    schellnCardOrder.enumerated().reduce(into: [:]) { $0[$1.element] = $1.offset }
-}()
-
-private let wenzTrumps: [Card] = wenzCardOder[0..<4]
-
-private let geierTrumps: [Card] = geierCardOrder[0..<4]
-
-private let eichelTrumps: [Card] = eichelCardOrder[0..<8]
-
-private let blattTrumps: [Card] = blattCardOrder[0..<8]
-
-private let schellnTrumps: [Card] = schellnCardOrder[0..<8]
-
-extension Card {
-    
-    func isTrump(in game: GameType) -> Bool {
-        switch game.sortingType {
-        case .normal:
-            trumpsInOrder = normalCardOrder[0..<8]
-        case .wenz:
-            trumpsInOrder = wenzCardOder[0..<4]
-        case .geier:
-            trumpsInOrder = geierCardOrder[0..<4]
-        case .soloEichel:
-            trumpsInOrder = eichelCardOrder[0..<8]
-        case .soloBlatt:
-            trumpsInOrder = blattCardOrder[0..<8]
-        case .soloSchelln:
-            trumpsInOrder = schellnCardOrder[0..<8]
-        }
-    }
-}
-
-extension Array where Element == Card {
-    
-    func sorted(cardOrder order: CardOrder) -> [Card] {
-        switch order {
-        case .normal:
-            return sorted { normalSortIndex[$0]! < normalSortIndex[$1]! }
-        case .wenz:
-            return sorted { wenzSortIndex[$0]! < wenzSortIndex[$1]! }
-        case .geier:
-            return sorted { geierSortIndex[$0]! < geierSortIndex[$1]! }
-        case .soloEichel:
-            return sorted { eichelSortIndex[$0]! < eichelSortIndex[$1]! }
-        case .soloBlatt:
-            return sorted { blattSortIndex[$0]! < blattSortIndex[$1]! }
-        case .soloSchelln:
-            return sorted { schellnSortIndex[$0]! < schellnSortIndex[$1]! }
-        }
-    }
-    
-    func consecutiveTrumps(for game: GameType) -> Int {
-        var count = 0
-        let trumpsInOrder: Array<Card>.SubSequence
-        switch game.sortingType {
-        case .normal:
-            trumpsInOrder = normalCardOrder[0..<8]
-        case .wenz:
-            trumpsInOrder = wenzCardOder[0..<4]
-        case .geier:
-            trumpsInOrder = geierCardOrder[0..<4]
-        case .soloEichel:
-            trumpsInOrder = eichelCardOrder[0..<8]
-        case .soloBlatt:
-            trumpsInOrder = blattCardOrder[0..<8]
-        case .soloSchelln:
-            trumpsInOrder = schellnCardOrder[0..<8]
-        }
-        while contains(trumpsInOrder[count]) {
-            count += 1
-        }
-        guard count >= 3 else {
-            return 0
-        }
-        return count
-    }
-    
-    func trumpCount(for game: GameType) -> Int {
-        
-    }
-    
-    /**
-     Split cards into chunks to assign them to players.
-     - Note: The array must contain a multiple of the `size` parameter
-     */
-    func split(intoChunksOf size: Int) -> [Hand] {
-        stride(from: 0, to: count, by: size).map { i in
-            Array(self[i..<i+4])
-        }
-    }
-    
-    var canOfferWedding: Bool {
-        NormalCardOrder.trumpCount(self) == 1
-    }
-}
-
 struct Dealer {
     
     /**
@@ -298,7 +9,7 @@ struct Dealer {
         // Select 16 random cards for the first hands
         Array(Card.allCards.shuffled()[0..<16])
             .split(intoChunksOf: 4)
-            .map { $0.sorted(cardOrder: .normal) }
+            .map { $0.sortedCards(order: NormalCardOrder.self) }
     }
 
     

Sources/App/Model/Game.swift

@@ -1,70 +0,0 @@
-import Foundation
-
-typealias Hand = [Card]
-
-/// The number of tricks ("Stich") per game
-let tricksPerGame = 8
-
-struct Game: Codable {
-    
-    let type: GameType
-    
-    let numberOfDoubles: Int
-    
-    /// The player(s) leading the game, i.e. they lose on 60-60
-    let leaders: [Int]
-    
-    /// The remaining cards for all players
-    var cards: [Hand]
-    
-    /// The total number of consecutive trump cards for one party (starts counting at 3)
-    let consecutiveTrumps: Int
-    
-    var lastTrickWinner: Int
-    
-    var currentActor: Int
-    
-    /// The finished tricks, with each trick sorted according to the player order of the table
-    var completedTricks: [Trick]
-    
-    init(type: GameType, doubles: Int, cards: [Hand], leaders: [Int], starter: Int) {
-        self.type = type
-        self.numberOfDoubles = doubles
-        self.cards = cards
-        self.leaders = leaders
-        self.consecutiveTrumps = Array(leaders.map { cards[$0] }.joined())
-            .consecutiveTrumps(for: type)
-        self.currentActor = starter
-        self.lastTrickWinner = starter
-        self.completedTricks = []
-    }
-    
-    var isAtEnd: Bool {
-        completedTricks.count == tricksPerGame
-    }
-    
-    var hasNotStarted: Bool {
-        !cards.contains { !$0.isEmpty }
-    }
-    
-    var pointsOfLeaders: Int {
-        leaders.map(pointsOfPlayer).reduce(0, +)
-    }
-    
-    func pointsOfPlayer(index: Int) -> Int {
-        completedTricks
-            .filter { $0.winnerIndex(forGameType: type) == index }
-            .map { $0.points }
-            .reduce(0, +)
-    }
-    
-    /// The cost of the game, in cents
-    var cost: Int {
-        // TODO: Add läufer and schwarz, schneider
-        type.basicCost * costMultiplier
-    }
-    
-    var costMultiplier: Int {
-        2 ^^ numberOfDoubles
-    }
-}

Sources/App/Model/GamePhase.swift

@@ -14,9 +14,15 @@ enum GamePhase: String, Codable {
     /// The game negotiation is ongoing
     case bidding = "bidding"
 
+    /// The game must be selected by the player
+    case selectGame = "select"
+    
     /// The game is in progress
     case playing = "play"
 
+    /// The player must select a card to give to the wedding offerer
+    case selectWeddingCard = "wedding"
+    
     /// The game is over
     case gameFinished = "done"
 }

Sources/App/Model/GameType.swift

@@ -4,19 +4,24 @@ enum GameType: Codable {
     
     enum GameClass: Int {
         case ruf = 1
-        case hochzeit = 2
+        case bettel = 2
-        case bettel = 3
+        case wenzGeier = 3
-        case wenzGeier = 4
+        case solo = 4
-        case solo = 5
         
         var cost: Int {
             switch self {
             case .ruf: return 5
-            case .hochzeit: return 10
             case .bettel: return 15
             case .wenzGeier, .solo: return 20
             }
         }
+
+        mutating func increase() {
+            guard self != .solo else {
+                return
+            }
+            self = .init(rawValue: rawValue + 1)!
+        }
     }
     
     case rufEichel
@@ -33,10 +38,8 @@ enum GameType: Codable {
     
     var gameClass: GameClass {
         switch self {
-        case .rufEichel, .rufBlatt, .rufSchelln:
+        case .rufEichel, .rufBlatt, .rufSchelln, .hochzeit:
             return .ruf
-        case .hochzeit:
-            return .hochzeit
         case .bettel:
             return .bettel
         case .wenz, .geier:
@@ -46,6 +49,28 @@ enum GameType: Codable {
         }
     }
 
+    var isCall: Bool {
+        switch self {
+        case .rufEichel, .rufBlatt, .rufSchelln:
+            return true
+        default:
+            return false
+        }
+    }
+
+    var calledSuit: Card.Suit? {
+        switch self {
+        case .rufEichel:
+            return .eichel
+        case .rufBlatt:
+            return .blatt
+        case .rufSchelln:
+            return .schelln
+        default:
+            return nil
+        }
+    }
+    
     var isSingleGame: Bool {
         switch self {
         case .rufEichel, .rufBlatt, .rufSchelln, .hochzeit:

Sources/App/Model/Player.swift

@@ -4,6 +4,15 @@ import CloudKit
 
 private let encoder = JSONEncoder()
 
+/**
+ Specifies the number of cards of the called suit that a player must have
+ to be allowed to play any card of the suit instead of having to play the ace.
+ */
+private let numberOfCardsToProtectAce = 4
+
+let numberOfCardsPerPlayer = 8
+
+
 final class Player {
     
     let name: PlayerName
@@ -46,6 +55,14 @@ final class Player {
     
     var socket: WebSocket? = nil
 
+    var canOfferWedding: Bool {
+        rawCards.canOfferWedding
+    }
+
+    var offersWedding = false
+
+    var wouldAcceptWedding = false
+    
     init(name: PlayerName) {
         self.name = name
     }
@@ -54,6 +71,22 @@ final class Player {
         handCards.map { $0.card }
     }
 
+    func has(card: Card) -> Bool {
+        handCards.contains { $0.card == card }
+    }
+
+    func hasPlayable(card: Card) -> Bool {
+        handCards.contains { $0.card == card && $0.isPlayable }
+    }
+
+    func remove(card: Card) {
+        handCards = handCards.filter { $0.card != card }
+    }
+
+    func play(card: Card) {
+        remove(card: card)
+        playedCard = card
+    }
     func connect(using socket: WebSocket) {
         _ = self.socket?.close()
         self.socket = socket
@@ -76,68 +109,285 @@ final class Player {
         return true
     }
 
+    func canPerform(_ action: Action) -> Bool {
+        actions.contains(action)
+    }
+    
     func prepareForFirstGame(isFirstPlayer: Bool) {
         playsFirstCard = isFirstPlayer
         isNextActor = isFirstPlayer
-        selectsGame = false // Not relevant in this phase
         startedCurrentTrick = isFirstPlayer
         actions = [.deal]
-        didDoubleAfterFourCards = nil // Not relevant in this phase
-        isStillBidding = false // Not relevant in this phase
-        isGameLeader = false // Not relevant in this phase
-        numberOfRaises = 0 // Not relevant in this phase
         handCards = []
         playedCard = nil
         wonTricks = []
     }
     
     func assignFirstCards(_ cards: Hand) {
-        selectsGame = false // Not relevant in this phase
         actions = [.initialDoubleCost, .noDoubleCost]
-        didDoubleAfterFourCards = nil
-        isStillBidding = false // Not relevant in this phase
-        isGameLeader = false // Not relevant in this phase
-        numberOfRaises = 0 // Not relevant in this phase
         handCards = cards.map { .init(card: $0, isPlayable: false) }
-        playedCard = nil
-        wonTricks = []
     }
     
     func didDouble(_ double: Bool) {
-        selectsGame = false // Not relevant in this phase
         actions = []
         didDoubleAfterFourCards = double
-        isStillBidding = false // Not relevant in this phase
-        isGameLeader = false // Not relevant in this phase
-        numberOfRaises = 0 // Not relevant in this phase
-        playedCard = nil
-        wonTricks = []
     }
     
     func assignRemainingCards(_ cards: Hand) {
-        isStillBidding = true
-        isGameLeader = false
-        numberOfRaises = 0
         handCards = (rawCards + cards)
-            .sorted(CardOrderType: .normal)
+            .sortedCards(order: NormalCardOrder.self)
             .map { .init(card: $0, isPlayable: false) }
-        playedCard = nil
-        wonTricks = []
     }
     
     func startAuction() {
-        selectsGame = false // Not relevant in this phase
         if playsFirstCard {
             actions = [.withdrawFromAuction, .increaseOrMatchGame]
         } else {
+            actions = []
+        }
+        if canOfferWedding {
+            actions.append(.offerWedding)
+        }
+    }
 
+    func offerWedding() {
+        offersWedding = true
+        actions = []
+    }
+
+    func weddingOfferExists() {
+        guard isStillBidding else {
+            return
+        }
+        actions = [.increaseOrMatchGame, .withdrawFromAuction]
+    }
+
+    func hasWeddingOffer() {
+        guard isStillBidding else {
+            return
+        }
+        actions = [.acceptWedding, .increaseOrMatchGame, .withdrawFromAuction]
+    }
+
+    func weddingOutbid() {
+        isNextActor = false
+        guard isStillBidding else {
+            return
         }
         actions = []
-        isStillBidding = true
+        if offersWedding {
-        isGameLeader = false // Not relevant in this phase
+            offersWedding = false
-        numberOfRaises = 0 // Not relevant in this phase
+            isStillBidding = false
+        }
+    }
+
+    func didPerformBid() {
+        isNextActor = false
+        actions = []
+    }
+
+    func requiresBid() {
+        isNextActor = true
+        actions = [.increaseOrMatchGame, .withdrawFromAuction]
+    }
+
+    func acceptWedding() {
+        wouldAcceptWedding = true
+        actions = []
+    }
+
+    func weddingAccepted() {
+        guard isStillBidding else {
+            actions = []
+            return
+        }
+        actions = [.increaseOrMatchGame, .withdrawFromAuction]
+    }
+
+    func auctionEnded() {
+        actions = []
+        isStillBidding = false
+        isNextActor = false
+    }
+
+    func mustSelectWeddingCard() {
+        isNextActor = true
+        // Only cards which are not trump can be given to the other player
+        handCards = handCards.map {
+            let card = $0.card
+            return .init(card: card, isPlayable: !card.isTrump(in: .hochzeit))
+        }
+        // Hochzeit costs double
+        numberOfRaises += 1
+    }
+
+    func mustSelectGame() {
+        isNextActor = true
+    }
+
+    func replace(card: Card, with other: Card) {
+        remove(card: card)
+        handCards.append(.init(card: other, isPlayable: false))
+    }
+
+    func replaceWeddingCard(with card: Card) -> Card {
+        let index = handCards.firstIndex { $0.card.isTrump(in: .hochzeit) }!
+        let removed = handCards.remove(at: index).card
+        handCards.append(.init(card: card, isPlayable: false))
+        return removed
+    }
+
+    func gameStarts() {
+        isNextActor = playsFirstCard
+        startedCurrentTrick = playsFirstCard
+        actions = [.doubleDuringGame]
+        isGameLeader = false
+    }
+
+    func switchLeadership() {
+        isGameLeader.toggle()
+        if isGameLeader {
+            actions = actions.filter { $0 != .doubleDuringGame }
+        } else if !actions.contains(.doubleDuringGame) {
+            actions.append(.doubleDuringGame)
+        }
+    }
+
+    func withdrawFromBidding() {
+        isStillBidding = false
+        actions = []
+    }
+
+    func didFinishTrick(canDoubleInNextRound: Bool) {
+        isNextActor = false
         playedCard = nil
-        wonTricks = []
+        if canDoubleInNextRound, !isGameLeader {
+            actions = [.doubleDuringGame]
+        }
+    }
+
+    func didWin(trick: Trick) {
+        self.wonTricks.append(trick)
+        self.isNextActor = true
+    }
+
+    func setPlayableCards(forCurrentTrick trick: Trick, in game: GameType?) {
+        guard let game = game, isNextActor else {
+            for i in 0..<handCards.count {
+                handCards[i].isPlayable = false
+            }
+            return
+        }
+        let cards = rawCards
+        guard cards.count > 1 else {
+            // Last card can always be played
+            setAllCards(playable: true)
+            return
+        }
+        guard let first = trick.first else {
+            setPlayableCardsForStarter(game: game)
+            return
+        }
+
+        let sorter = game.sortingType
+
+        guard sorter.isTrump(first) else {
+            setPlayableCardsFollowing(suit: first.suit, game: game)
+            return
+        }
+        guard !sorter.hasTrump(in: cards) else {
+            // Must follow with trump
+            handCards = cards.map {
+                .init(card: $0, isPlayable: sorter.isTrump($0))
+            }
+            return
+        }
+        // Can play any card if not in calling game
+        guard let suit = game.calledSuit else {
+            setAllCards(playable: true)
+            return
+        }
+        // Can play any card, except the called ace
+        let ace = Card(suit, .ass)
+        handCards = cards.map {
+            .init(card: $0, isPlayable: $0 != ace)
+        }
+    }
+
+    private func setPlayableCardsFollowing(suit: Card.Suit, game: GameType) {
+        let cards = rawCards
+        let sorter = game.sortingType
+        // No calling game, allow all cards of same suit
+        let suitCards = sorter.cards(with: suit, in: cards)
+
+        func followSuit() {
+            handCards = cards.map {
+                .init(card: $0, isPlayable: !sorter.isTrump($0) && $0.suit == suit)
+            }
+        }
+        guard let called = game.calledSuit else {
+            if suitCards.isEmpty {
+                // Can play any card
+                setAllCards(playable: true)
+            } else {
+                // Must follow suit
+                followSuit()
+            }
+            return
+        }
+        let ace = Card(called, .ass)
+        guard called == suit else {
+            if suitCards.isEmpty {
+                // Exclude called ace, all others allowed
+                handCards = cards.map {
+                    .init(card: $0, isPlayable: $0 != ace)
+                }
+            } else {
+                // Must follow suit (called ace automatically excluded)
+                followSuit()
+            }
+            return
+        }
+        // The called suit is player, must commit ace
+        guard cards.contains(ace) else {
+            // Must follow suit
+            followSuit()
+            return
+        }
+        // Must play ace
+        handCards = cards.map { .init(card: $0, isPlayable: $0 == ace) }
+    }
+
+    private func setPlayableCardsForStarter(game: GameType) {
+        guard let suit = game.calledSuit else {
+            setAllCards(playable: true)
+            return
+        }
+        let cards = rawCards
+        let ace = Card(suit, .ass)
+        // Check if called ace exists, to prohibit other cards of the same suit
+        guard cards.contains(ace) else {
+            setAllCards(playable: true)
+            return
+        }
+        // Jodeln
+        if cards.count == numberOfCardsPerPlayer,
+           cards.suitCount(suit, in: game) >= numberOfCardsToProtectAce {
+            setAllCards(playable: true)
+            return
+        }
+
+        // Only ace allowed for the called suit
+        handCards = cards.map { card in
+            let notPlayable = card.suit == suit && !card.symbol.isTrumpOrAce
+            return PlayableCard(card: card, isPlayable: !notPlayable)
+        }
+    }
+
+    private func setAllCards(playable: Bool) {
+        for i in 0..<handCards.count {
+            handCards[i].isPlayable = playable
+        }
     }
     
     func info(masked: Bool) -> PlayerInfo {
@@ -193,3 +443,10 @@ extension Player {
         }
     }
 }
+
+extension Player: Equatable {
+
+    static func == (lhs: Player, rhs: Player) -> Bool {
+        lhs.name == rhs.name
+    }
+}

Sources/App/Model/Table.swift

@@ -22,10 +22,7 @@ final class Table {
     
     var gameType: GameType? = nil
     
-    var minimumPlayableGame: GameType.GameClass = .ruf
+    var minimumPlayableGame: GameType.GameClass?
-    
-    /// Indicates if doubles are still allowed
-    var canDoubleDuringGame = false
     
     /// Indicates if any player doubled during the current round, extending it to the next round
     var didDoubleInCurrentRound = false
@@ -35,6 +32,42 @@ final class Table {
         !players.contains { $0.didDoubleAfterFourCards == nil }
     }
 
+    var weddingOfferExists: Bool {
+        players.contains { $0.offersWedding }
+    }
+
+    var weddingAcceptExists: Bool {
+        players.contains { $0.wouldAcceptWedding }
+    }
+
+    var hasAuctionWinner: Bool {
+        numberOfRemainingBidders == 1
+    }
+
+    var numberOfRemainingBidders: Int {
+        players.filter { $0.isStillBidding }.count
+    }
+
+    var auctionWinner: Player {
+        players.first { $0.isStillBidding }!
+    }
+
+    var hasCompletedTrick: Bool {
+        !players.contains { $0.playedCard == nil }
+    }
+
+    var completedTrick: Trick? {
+        let trick = players.compactMap { $0.playedCard }
+        guard trick.count == maximumPlayersPerTable else {
+            return nil
+        }
+        return trick
+    }
+
+    var currentTrick: [Card] {
+        players.compactMap { $0.playedCard }
+    }
+    
     init(id: TableId, name: TableName, isPublic: Bool) {
         self.id = id
         self.name = name
@@ -64,6 +97,11 @@ final class Table {
         players.contains { $0.name == player }
     }
 
+    /// The player to play the first card of the current game
+    var firstPlayer: Player {
+        players.first { $0.playsFirstCard }!
+    }
+    
     func select(player: PlayerName) -> Player? {
         players.first { $0.name == player }
     }
@@ -87,6 +125,29 @@ final class Table {
         return players[index]
     }
 
+    func index(of player: Player) -> Int {
+        players.firstIndex(of: player)!
+    }
+
+    func nextPlayer(after player: Player) -> Player {
+        let i = index(of: player)
+        let newIndex = (i + 1) % maximumPlayersPerTable
+        return players[newIndex]
+    }
+
+    func nextBidder(after player: Player) -> Player {
+        // Find next player to place bid
+        let index = index(of: player)
+        for i in 1..<4 {
+            let player = players[(index + i) % 4]
+            guard player.isStillBidding else {
+                continue
+            }
+            return player
+        }
+        return player
+    }
+    
     func remove(player: PlayerName) {
         guard contains(player: player) else {
             return
@@ -116,11 +177,10 @@ final class Table {
     }
     
     private func prepareTableForFirstGame() {
-        self.phase = .waitingForPlayers
+        phase = .waitingForPlayers
-        self.gameType = nil
+        gameType = nil
-        self.minimumPlayableGame = .ruf // Not relevant in this phase
+        minimumPlayableGame = nil // Not relevant in this phase
-        self.canDoubleDuringGame = true // Not relevant in this phase
+        didDoubleInCurrentRound = false // Not relevant in this phase
-        self.didDoubleInCurrentRound = false // Not relevant in this phase
         let index = players.firstIndex { $0.playsFirstCard } ?? 0
         for i in 0..<maximumPlayersPerTable {
             players[i].prepareForFirstGame(isFirstPlayer: i == index)
@@ -139,7 +199,49 @@ final class Table {
     
     // MARK: Player actions
 
+    func play(card: Card, player name: PlayerName) -> PlayCardResult {
+        let player = select(player: name)!
+        if phase == .selectWeddingCard {
+            return selectedCardForWedding(card: card, player: player)
+        }
+        guard let game = gameType,
+                player.hasPlayable(card: card) else {
+            return .invalidCard
+        }
+        player.play(card: card)
+        if let completedTrick = completedTrick {
+            didFinish(trick: completedTrick, in: game)
+        } else {
+            let next = nextPlayer(after: player)
+            next.isNextActor = true
+            player.isNextActor = false
+        }
+        updatePlayableCards()
+        return .success
+    }
+
+    private func updatePlayableCards() {
+        let playedCards = currentTrick
+        players.forEach {
+            $0.setPlayableCards(forCurrentTrick: playedCards, in: gameType)
+        }
+    }
+
+    func didFinish(trick: Trick, in game: GameType) {
+        // If trick is completed, calculate winner
+        let index = trick.highCardIndex(forGame: game)
+        players.forEach {
+            $0.didFinishTrick(canDoubleInNextRound: didDoubleInCurrentRound)
+        }
+        players[index].didWin(trick: trick)
+        didDoubleInCurrentRound = false
+    }
+    
     func perform(action: Player.Action, forPlayer player: PlayerName) -> PlayerActionResult {
+        let player = select(player: player)!
+        guard player.canPerform(action) else {
+            return .tableStateInvalid
+        }
         defer { sendUpdateToAllPlayers() }
         switch action {
         case .deal:
@@ -149,15 +251,15 @@ final class Table {
         case .noDoubleCost:
             return perform(double: false, forPlayer: player)
         case .offerWedding:
-            fatalError()
+            return performWeddingCall(forPlayer: player)
         case .acceptWedding:
-            fatalError()
+            return handleWeddingAccept(forPlayer: player)
         case .increaseOrMatchGame:
-            fatalError()
+            return performBidIncrease(forPlayer: player)
         case .withdrawFromAuction:
-            fatalError()
+            return performWithdrawl(forPlayer: player)
         case .doubleDuringGame:
-            fatalError()
+            return performDoubleDuringGame(forPlayer: player)
         }
     }
     
@@ -169,19 +271,16 @@ final class Table {
             return .tableStateInvalid
         }
         
-        phase = .collectingDoubles
-        gameType = nil
-        minimumPlayableGame = .ruf
-        
         let cards = Dealer.dealFirstCards()
         for (index, player) in players.enumerated() {
             player.assignFirstCards(cards[index])
         }
+        phase = .collectingDoubles
+        gameType = nil
         return .success
     }
     
-    func perform(double: Bool, forPlayer name: PlayerName) -> PlayerActionResult {
+    func perform(double: Bool, forPlayer player: Player) -> PlayerActionResult {
-        let player = select(player: player)!
         player.didDouble(double)
         if allPlayersFinishedDoubling {
             dealAdditionalCards()
@@ -194,18 +293,173 @@ final class Table {
         for (index, player) in players.enumerated() {
             player.assignRemainingCards(cards[index])
         }
+        players.forEach { $0.startAuction() }
+        minimumPlayableGame = nil
+    }
+
+    private func performWeddingCall(forPlayer player: Player) -> PlayerActionResult {
+        guard phase == .bidding else {
+            return .tableStateInvalid
+        }
+        guard minimumPlayableGame == nil || minimumPlayableGame == .ruf else {
+            return .tableStateInvalid
+        }
+        guard player.offersWedding else {
+            return .tableStateInvalid
+        }
+        guard !weddingOfferExists else {
+            // Only one wedding allowed at the table
+            return .tableStateInvalid
+        }
+        // Only allow wedding acceptance or outbidding
+        players.forEach { $0.weddingOfferExists() }
+        player.offerWedding()
+        firstPlayer.hasWeddingOffer()
+        minimumPlayableGame = .bettel
         return .success
     }
 
-    private func startAuction() {
+    private func performBidIncrease(forPlayer player: Player) -> PlayerActionResult {
-        players.forEach { $0.startAuction() }
+        guard phase == .bidding else {
-        minimumPlayableGame = .ruf
+            return .tableStateInvalid
+        }
+        if weddingOfferExists {
+            // Anyone except the offerer can outbid a wedding
+            return handleWeddingOutbid(forPlayer: player)
+        }
+        guard player.isNextActor else {
+            return .tableStateInvalid
+        }
+        if minimumPlayableGame == nil {
+            minimumPlayableGame = .ruf
+        } else {
+            minimumPlayableGame!.increase()
+        }
+        player.didPerformBid()
+        // Find next player to place bid
+        nextBidder(after: player).requiresBid()
+        return .success
+    }
+
+    private func handleWeddingOutbid(forPlayer player: Player) -> PlayerActionResult {
+        if player.offersWedding {
+            // A player offering a wedding can't outbid itself
+            return .tableStateInvalid
+        }
+        players.forEach { $0.weddingOutbid() }
+        firstPlayer.requiresBid()
+        return .success
+    }
+
+    private func handleWeddingAccept(forPlayer player: Player) -> PlayerActionResult {
+        guard phase == .bidding else {
+            return .tableStateInvalid
+        }
+        guard minimumPlayableGame == nil || minimumPlayableGame == .ruf else {
+            return .tableStateInvalid
+        }
+        guard weddingOfferExists else {
+            return .tableStateInvalid
+        }
+        guard player.isNextActor else {
+            return .tableStateInvalid
+        }
+        guard !player.offersWedding else {
+            return .tableStateInvalid
+        }
+        guard !weddingAcceptExists else {
+            return .tableStateInvalid
+        }
+        if hasAuctionWinner {
+            selectedWedding(player: player)
+            return .success
+        }
+        minimumPlayableGame = .bettel
+        players.forEach {
+            $0.weddingAccepted()
+        }
+        player.acceptWedding()
+        nextBidder(after: player).requiresBid()
+        return .success
+    }
+
+    private func selectedWedding(player: Player) {
+        minimumPlayableGame = nil
+        gameType = .hochzeit
+        phase = .selectWeddingCard
+        players.forEach { $0.auctionEnded() }
+        player.mustSelectWeddingCard()
+    }
+
+    private func selectedCardForWedding(card: Card, player: Player) -> PlayCardResult {
+        guard player.isNextActor,
+              player.wouldAcceptWedding,
+              weddingOfferExists else {
+                  return .invalidTableState
+              }
+        guard !card.isTrump(in: .hochzeit),
+              player.has(card: card) else {
+                  return .invalidCard
+              }
+        // Swap the cards
+        let offerer = players.first { $0.offersWedding }!
+        let offeredCard = offerer.replaceWeddingCard(with: card)
+        player.replace(card: card, with: offeredCard)
+
+        // Start the game
+        gameType = .hochzeit
+        players.forEach { $0.gameStarts() }
+        player.switchLeadership()
+        offerer.switchLeadership()
+        return .success
+    }
+
+    private func performWithdrawl(forPlayer player: Player) -> PlayerActionResult {
+        guard phase == .bidding,
+              player.isNextActor,
+              player.isStillBidding else {
+                  return .tableStateInvalid
+              }
+        player.withdrawFromBidding()
+        switch numberOfRemainingBidders {
+        case 1:
+            selectGame(player: auctionWinner)
+        case 0:
+            // All players withdrawn, deal new cards
+            let first = firstPlayer
+            let newPlayer = self.nextBidder(after: first)
+            first.playsFirstCard = false
+            newPlayer.playsFirstCard = true
+            prepareTableForFirstGame()
+            return dealInitialCards()
+        default:
+            break
+        }
+        return .success
+    }
+
+    private func selectGame(player: Player) {
+        minimumPlayableGame = nil
+        gameType = nil
+        phase = .selectGame
+        players.forEach { $0.auctionEnded() }
+        player.mustSelectGame()
+    }
+
+    private func performDoubleDuringGame(forPlayer player: Player) -> PlayerActionResult {
+        guard phase == .playing,
+              !player.isGameLeader else {
+                  return .tableStateInvalid
+              }
+        player.numberOfRaises += 1
+        players.forEach { $0.switchLeadership() }
+        return .success
     }
 
     private func reset() {
         phase = .waitingForPlayers
         gameType = nil
-        minimumPlayableGame = .ruf
+        minimumPlayableGame = nil
     }
 }
 

Sources/App/Model/Trick.swift

@@ -1,16 +0,0 @@
-import Foundation
-
-typealias Trick = [Card]
-
-extension Trick {
-    
-    func winnerIndex(forGameType type: GameType) -> Int {
-        let highCard = sorted(cardOrder: type.sortingType).first!
-        return firstIndex(of: highCard)!
-    }
-    
-    var points: Int {
-        map { $0.points }
-        .reduce(0, +)
-    }
-}

Sources/App/Results/PlayCardResult.swift

@@ -0,0 +1,14 @@
+import Foundation
+
+enum PlayCardResult {
+
+    case success
+
+    case invalidToken
+
+    case noTableJoined
+
+    case invalidTableState
+
+    case invalidCard
+}

Sources/App/routes.swift

@@ -203,8 +203,8 @@ func routes(_ app: Application) throws {
         guard let player = database.registeredPlayerExists(withSessionToken: token) else {
             throw Abort(.unauthorized) // 401
         }
-        let tableId = database.createTable(named: tableName, player: player, isPublic: isPublic)
+        let table = database.createTable(named: tableName, player: player, isPublic: isPublic)
-        return tableId
+        return try encodeJSON(table)
     }
     
     /**
@@ -293,4 +293,25 @@ func routes(_ app: Application) throws {
             throw Abort(.preconditionFailed) // 412
         }
     }
+
+    app.post("player", "card", ":card") { req -> String in
+        guard let token = req.body.string,
+              let cardId = req.parameters.get("card"),
+              let card = Card(id: cardId) else {
+                  throw Abort(.badRequest)
+              }
+        switch database.play(card: card, playerToken: token) {
+        case .success:
+            return ""
+        case .invalidToken:
+            throw Abort(.unauthorized) // 401
+        case .noTableJoined:
+            throw Abort(.preconditionFailed) // 412
+        case .invalidTableState:
+            throw Abort(.preconditionFailed) // 412
+        case .invalidCard:
+            throw Abort(.preconditionFailed) // 412
+
+        }
+    }
 }