Check, fix, check ser-de

CLI/CLI/main.swift

@@ -31,11 +31,7 @@ enum PlayerType: String, CaseIterable {
     case Human = "Player"
 }
 
-func createPlayer(type: PlayerType, playing pieces: PieceType, named name: String) -> Player {
-    switch type {
-    case .Human:
-        HumanPlayer(name: name, piece_type: pieces, callback: {
-            allowed_moves, board in
+func playerPrompt(allowed_moves: [Move.Action], board: Board) -> Move.Action {
     for (i, action) in allowed_moves.enumerated() {
         let text = switch action {
         case .InsertAt(let at): "Place piece at \(at.col):\(at.row)"
@@ -51,7 +47,12 @@ func createPlayer(type: PlayerType, playing pieces: PieceType, named name: Strin
     }
     
     return allowed_moves[index - 1]
-        })
+}
+
+func createPlayer(type: PlayerType, playing pieces: PieceType, named name: String) -> Player {
+    switch type {
+    case .Human:
+        HumanPlayer(name: name, piece_type: pieces, callback: playerPrompt)
     case .AIRandom:
         RandomPlayer(name: name, piece_type: pieces)
     }
@@ -68,7 +69,7 @@ let players: [Player] = PieceType.allCases.map { type in
     return createPlayer(type: ptype, playing: type, named: playerName)
 }
 
-let rules: Rules = switch gameType {
+let rules: any Rules = switch gameType {
 case .FourInARow: FourInARowRules(players: players)!
 case .TicTacToe: TicTacToeRules(players: players)!
 }
@@ -104,3 +105,9 @@ encoder.userInfo[.gameDecodingContext] = CodableContext()
 let data = try encoder.encode(CodableGameWrapper(of: game))
 
 print(String(data: data, encoding: .utf8)!)
+
+var decoder = JSONDecoder()
+decoder.userInfo[.gameDecodingContext] = CodableContext(creatingCallbacks: { name, type in playerPrompt })
+let game2 = (try decoder.decode(CodableGameWrapper.self, from: data)).game
+
+assert(game == game2, "Games are not equals!")

Model/Sources/Model/Board.swift

@@ -42,10 +42,13 @@ public struct Board: Equatable {
         }
     }
     
+    /// Iterate in the same order as coords
     public var cells: any Sequence<Piece?> {
-        self.grid.lazy.flatMap { (row: [Piece?]) -> LazySequence<[Piece?]> in row.lazy }
+        // self.grid.lazy.flatMap { (row: [Piece?]) -> LazySequence<[Piece?]> in row.lazy }
+        self.coords.map { self[$0] }
     }
     
+    /// Iterate row by row, from 0 to width
     public var coords: any Sequence<Coords> {
         (0..<self.rows).lazy.flatMap { (row: Int) in
             (0..<self.columns).lazy.map { (column: Int) in

Model/Sources/Model/Game.swift

@@ -1,20 +1,20 @@
 public typealias BoardChangedListener = (Board) -> Void
 public typealias GameStateChangedListener = (GameState) -> Void
 
-public class Game {
+public class Game: Equatable {
     public var boardChanged = Event<Board>()
     public var gameStateChanged = Event<GameState>()
     public var moveIsInvalid = Event<Move>()
     
     public let players: [Player]
-    public let rules: Rules
+    public let rules: any Rules
     
     /// Has to be public for serialization purposes
     public var board: Board
     /// Has to be public for serialization purposes
     public var state: GameState
     
-    public init(players: [Player], rules: Rules) {
+    public init(players: [Player], rules: any Rules) {
         self.players = players
         self.rules = rules
         
@@ -23,7 +23,7 @@ public class Game {
         self.state = rules.gameState(board: board, last_turn: nil)
     }
     
-    public init?(players: [Player], rules: Rules, board: Board, state: GameState?) {
+    public init?(players: [Player], rules: any Rules, board: Board, state: GameState?) {
         guard rules.isValid(board: board) else { return nil }
         
         self.state = state ?? rules.gameState(board: board, last_turn: nil)
@@ -96,6 +96,13 @@ public class Game {
         
         board[finalCoords] = Piece(owner: move.player)
     }
+    
+    public static func == (lhs: Game, rhs: Game) -> Bool {
+        lhs.players == rhs.players
+        && RulesUtils.equals(lhs: lhs.rules, rhs: rhs.rules)
+        && lhs.board == rhs.board
+        && lhs.state == rhs.state
+    }
 }
 
 @dynamicCallable

Model/Sources/Model/Players/Player.swift

@@ -19,8 +19,7 @@ public class Player : Equatable {
     }
     
     public static func == (lhs: Player, rhs: Player) -> Bool {
-        // TODO: name equality or reference equality?
-        lhs === rhs
+        lhs === rhs || (lhs.type == rhs.type && lhs.name == rhs.name && lhs.piece_type == rhs.piece_type)
     }
 }
 

Model/Sources/Model/Rules/Rules.swift

@@ -1,4 +1,4 @@
-public protocol Rules {
+public protocol Rules: Equatable {
     var type: RulesTypes { get }
 
     func createBoard() -> Board
@@ -14,6 +14,22 @@ public protocol Rules {
     func gameState(board: Board, last_turn: Player?) -> GameState
 }
 
+public struct RulesUtils {
+    public static func equals(lhs: any Rules, rhs: any Rules) -> Bool {
+        let t1 = lhs.type
+        let t2 = rhs.type
+        
+        if t1 != t2 { return false }
+        
+        return switch t1 {
+        case .FourInARow:
+            (lhs as! FourInARowRules) == (rhs as! FourInARowRules)
+        case .TicTacToe:
+            (lhs as! TicTacToeRules) == (rhs as! TicTacToeRules)
+        }
+    }
+}
+
 public enum GameState: Equatable {
     case Playing(turn: Player)
     case Win(winner: Player, board: Board, cells: [Coords])

Persistance/Sources/Persistance/Rules.swift

@@ -1,9 +1,9 @@
 import Model
 
 public struct CodableRulesWrapper: Codable {
-    public let rules: Rules
+    public let rules: any Rules
     
-    public init(of rules: Rules) {
+    public init(of rules: any Rules) {
         self.rules = rules
     }
     
@@ -30,7 +30,7 @@ extension RulesTypes: CodingKey, Codable {
         try CodableEnum(of: self).encode(to: encoder)
     }
     
-    public func decodeRules(from decoder: any Decoder) throws -> Rules {
+    public func decodeRules(from decoder: any Decoder) throws -> any Rules {
         switch self {
         case .FourInARow: try FourInARowRules(from: decoder)
         case .TicTacToe: try TicTacToeRules(from: decoder)