server side refactoring, add field color to move

src/main/client/src/Game.jsx

@@ -12,6 +12,7 @@ import {
 import {
   StompContext,
   BLACK,
+  WHITE,
   TERRITORY,
   TERRITORY_B,
   REMOVED_B,
@@ -43,6 +44,7 @@ export const Game = () => {
   let {gameId} = useParams()
   let stompClient = useContext(StompContext)
   let auth = useAuthStore(state => state.auth)
+  let black = useGameStore(state => state.black)
   let setGameState = useGameStore(state => state.setGameState)
   let queueStatus = useGameStore(state => state.queueStatus)
   let queueLength = useGameStore(state => state.queueLength)
@@ -167,6 +169,7 @@ export const Game = () => {
       body: JSON.stringify({
         id: gameId,
         n: queueLength(),
+        color: black.name === auth.name ? BLACK : WHITE,
         x: cursor_x,
         y: cursor_y,
       }),

src/main/client/src/feature/GamePanel.jsx

@@ -51,9 +51,11 @@ function Panel({zoom, setZoom}) {
   let queueLength = useGameStore(state => state.queueLength)
   let counting = useGameStore(state => state.counting)
   let countingComplete = useGameStore(state => state.countingComplete)
+  let currentColor = useGameStore(state => state.currentColor)
   let currentPlayer = useGameStore(state => state.currentPlayer)
   let { board, gameHasEnded } = useGameStore(state => state.gameState)
   let navigate = useNavigate()
+  let myColor = black.name === auth.name ? BLACK : WHITE
   let onExit = useCallback(() => {
     navigate(base + "/lobby")
   }, [navigate])
@@ -62,6 +64,7 @@ function Panel({zoom, setZoom}) {
       destination: "/app/game/move",
       body: JSON.stringify({
         id: gameId,
+        color: myColor,
         n: queueLength(),
         pass: true,
       }),
@@ -72,21 +75,23 @@ function Panel({zoom, setZoom}) {
       destination: "/app/game/move",
       body: JSON.stringify({
         id: gameId,
+        color: myColor,
         n: queueLength(),
         resetCounting: true,
       }),
     })
-  }, [stompClient, gameId, queueLength])
+  }, [stompClient, gameId, queueLength, currentColor])
   let onCountingAgree = useCallback(() => {
     stompClient.publish({
       destination: "/app/game/move",
       body: JSON.stringify({
         id: gameId,
+        color: myColor,
         n: queueLength(),
         agreeCounting: true,
       }),
     })
-  }, [stompClient, gameId, queueLength])
+  }, [stompClient, gameId, queueLength, currentColor])
   if (!board.length) {
     return <span>Loading...</span>
   }

src/main/java/com/bernd/GameController.java

@@ -57,8 +57,7 @@ public void action(Move move, Principal principal) {
       return;
     }
     int moveNumber = game.moves().size();
-    int color = game.currentColor();
-    String currentPlayer = game.currentColor() == Board.B ? game.black().name() : game.white().name();
+    String currentPlayer = move.color() == Board.B ? game.black().name() : game.white().name();
     if (!principal.getName().equals(currentPlayer)) {
       return; // discard
     }
@@ -68,9 +67,9 @@ public void action(Move move, Principal principal) {
     Game updated = game.update(move);
     games.put(updated);
     if (updated.gameHasEnded()) {
-      operations.convertAndSend("/topic/move/" + game.id(), move.gameEnd(color, updated.counting()));
+      operations.convertAndSend("/topic/move/" + game.id(), move.gameEnd(updated.counting()));
     } else if (!move.agreeCounting()) {
-      operations.convertAndSend("/topic/move/" + game.id(), move.toView(color, updated.counting()));
+      operations.convertAndSend("/topic/move/" + game.id(), move.toView(updated.counting()));
     }
   }
 

src/main/java/com/bernd/LobbyController.java

@@ -18,8 +18,6 @@
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.ResponseBody;
 
-import static com.bernd.game.Board.B;
-
 @Controller
 public class LobbyController {
 
@@ -77,8 +75,6 @@ public ViewGame startEdit(@RequestBody MatchRequest request) {
         user,
         false,
         0,
-        principal,
-        B,
         false,
         createEmptyBoard(request.dim()),
         request.dim(),

src/main/java/com/bernd/game/MoveList.java

@@ -2,6 +2,7 @@
 
 import com.bernd.model.GameMove;
 import com.bernd.model.Move;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -45,15 +46,15 @@ public void addGameEndMarker() {
     pos++;
   }
 
-  public void add(int color, Move move, boolean counting) {
+  public void add(Move move, boolean counting) {
     ensureCapacity();
     int ptId;
     if (move.pass()) {
       ptId = PASS;
     } else {
       ptId = dim * move.y() + move.x();
     }
-    if (color == Board.W) {
+    if (move.color() == Board.W) {
       ptId |= WHITE;
     }
     if (counting) {

src/main/java/com/bernd/model/Game.java

@@ -9,8 +9,6 @@
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
-import static com.bernd.game.Board.B;
-import static com.bernd.game.Board.W;
 import static com.bernd.game.Board.removeDeadStonesAround;
 import static com.bernd.util.Util.COLORS;
 
@@ -20,8 +18,6 @@ public record Game(
     User white,
     boolean counting,
     int countingAgreed,
-    String currentPlayer,
-    int currentColor,
     boolean opponentPassed,
     int[][] board,
     int dim,
@@ -44,36 +40,57 @@ public Game update(Move move) {
 
   private Game updateInternal(Move move) {
     if (move.agreeCounting()) {
-      if ((countingAgreed | currentColor()) == COLORS) {
+      if ((countingAgreed | move.color()) == COLORS) {
         moves.addGameEndMarker();
       }
-      return countingAgreed(countingAgreed | currentColor());
+      return toBuilder()
+          .withCountingAgreed(countingAgreed | move.color())
+          .build();
     }
-    moves.add(currentColor, move, counting);
+    moves.add(move, counting);
     if (counting) {
       if (move.resetCounting()) {
         int[][] resetted = Toggle.resetCounting(board);
-        return game(Count.count(resetted), NOT_FORBIDDEN);
+        return toBuilder()
+            .withBoard(Count.count(resetted))
+            .withForbidden(NOT_FORBIDDEN)
+            .build();
       }
       int[][] toggled = Toggle.toggleStonesAt(board, move.x(), move.y());
-      return game(Count.count(toggled), NOT_FORBIDDEN);
+      return toBuilder()
+          .withBoard(Count.count(toggled))
+          .withForbidden(NOT_FORBIDDEN)
+          .build();
     }
     if (move.pass()) {
       if (opponentPassed) {
-        return startCounting();
+        return toBuilder()
+            .withBoard(Count.count(board))
+            .withCounting(true)
+            .withForbidden(NOT_FORBIDDEN)
+            .build();
       }
-      return game(board, counting, 0, true, NOT_FORBIDDEN);
+      return toBuilder()
+          .withOpponentPassed(true)
+          .withForbidden(NOT_FORBIDDEN)
+          .build();
     }
     int x = move.x();
     int y = move.y();
-    int color = currentColor();
+    int color = move.color();
     int[][] updated = BoardUpdateImpl.create(board.length, x, y, color).apply(board);
     int[][] result = removeDeadStonesAround(updated, x, y);
     Direction direction = getDirection(x, y, result, updated);
     if (isKo(x, y, color, result, direction)) {
-      return game(result, new int[]{direction.moveX(x), direction.moveY(y)});
+      return toBuilder()
+          .withBoard(result)
+          .withForbidden(direction.moveX(x), direction.moveY(y))
+          .build();
     }
-    return game(result, NOT_FORBIDDEN);
+    return toBuilder()
+        .withBoard(result)
+        .withForbidden(NOT_FORBIDDEN)
+        .build();
   }
 
   private boolean isKo(
@@ -128,56 +145,15 @@ private Direction getDirection(
     return Direction.from(xx, yy, col, row);
   }
 
-  private Game game(
-      int[][] board,
-      boolean counting,
-      int countingAgreed,
-      boolean opponentPassed,
-      int[] forbidden) {
-    return new Game(
-        id,
-        black,
-        white,
-        counting,
-        countingAgreed,
-        nextPlayer(),
-        nextColor(),
-        opponentPassed,
-        board,
-        dim,
-        Math.max(0, handicap - 1),
-        forbidden,
-        moves);
-  }
-
-  private Game game(int[][] board, int[] forbidden) {
-    return game(board, counting, 0, false, forbidden);
-  }
-
-  private Game startCounting() {
-    return game(Count.count(board), true, 0, true, NOT_FORBIDDEN);
-  }
-
-  private String nextPlayer() {
-    return currentPlayer.equals(black.name()) ? white().name() : black().name();
-  }
-
-  private int nextColor() {
-    if (handicap > 0) {
-      return currentColor;
-    }
-    return currentColor == B ? W : B;
-  }
-
   public ViewGame toView() {
     return ViewGame.fromGame(this);
   }
 
-  private Game countingAgreed(int countingAgreed) {
-    return game(board, counting, countingAgreed, opponentPassed, forbidden);
-  }
-
   public boolean gameHasEnded() {
     return countingAgreed == COLORS;
   }
+
+  public GameBuilder toBuilder() {
+    return GameBuilder.builder(this);
+  }
 }

src/main/java/com/bernd/model/GameBuilder.java

@@ -0,0 +1,84 @@
+package com.bernd.model;
+
+public final class GameBuilder {
+  private final Game game;
+
+  private boolean counting;
+  private int countingAgreed;
+  private boolean opponentPassed;
+  private int[][] board;
+  private int dim;
+  private int handicap;
+  private int[] forbidden;
+
+  private GameBuilder(Game game) {
+    this.game = game;
+  }
+
+  public GameBuilder withCounting(boolean counting) {
+    this.counting = counting;
+    return this;
+  }
+
+  public GameBuilder withCountingAgreed(int countingAgreed) {
+    this.countingAgreed = countingAgreed;
+    return this;
+  }
+
+  public GameBuilder withOpponentPassed(boolean opponentPassed) {
+    this.opponentPassed = opponentPassed;
+    return this;
+  }
+
+  public GameBuilder withBoard(int[][] board) {
+    this.board = board;
+    return this;
+  }
+
+  public GameBuilder withDim(int dim) {
+    this.dim = dim;
+    return this;
+  }
+
+  public GameBuilder withHandicap(int handicap) {
+    this.handicap = handicap;
+    return this;
+  }
+
+  public GameBuilder withForbidden(int[] forbidden) {
+    this.forbidden = forbidden;
+    return this;
+  }
+
+  public GameBuilder withForbidden(int x, int y) {
+    return withForbidden(new int[]{x, y});
+  }
+
+  static GameBuilder builder(Game game) {
+    GameBuilder builder = new GameBuilder(game);
+    builder.counting = game.counting();
+    builder.countingAgreed = game.countingAgreed();
+    builder.opponentPassed = game.opponentPassed();
+    builder.board = game.board();
+    builder.dim = game.dim();
+    builder.handicap = game.handicap();
+    builder.forbidden = game.forbidden();
+    return builder;
+  }
+
+  public Game build() {
+    return new Game(
+        game.id(),
+        game.black(),
+        game.white(),
+        counting,
+        countingAgreed,
+        opponentPassed,
+        board,
+        dim,
+        handicap,
+        forbidden,
+        game.moves()
+    );
+  }
+}

src/main/java/com/bernd/model/Move.java

@@ -2,18 +2,19 @@
 
 public record Move(
     String id,
+    int color,
     int n,
     boolean pass,
     boolean resetCounting,
     boolean agreeCounting,
     int x,
     int y) {
 
-  public GameMove toView(int color, boolean counting) {
+  public GameMove toView(boolean counting) {
     return new GameMove(n, color, pass, x, y, counting, resetCounting, false);
   }
 
-  public GameMove gameEnd(int color, boolean counting) {
+  public GameMove gameEnd(boolean counting) {
     return new GameMove(n, color, pass, x, y, counting, resetCounting, true);
   }
 }