[4단계 - DB 적용] 이준섭 미션 제출합니다.

src/main/java/chess/model/ErrorMessage.java → src/main/java/chess/domain/ErrorMessage.java

@@ -1,4 +1,4 @@
-package chess.model;
+package chess.domain;
 
 public enum ErrorMessage {
   INVALID_INITIAL_COMMAND("[ERROR] 게임 시작 명령은 start, 게임 종료 명령은 end 여야 합니다."),
@@ -13,7 +13,10 @@ public enum ErrorMessage {
   SAME_COLOR_PIECE("[ERROR] 같은 색의 말로는 이동할 수 없습니다."),
   SAME_POSITION("[ERROR] 출발지와 목적지가 동일하여 이동할 수 없습니다."),
   INVALID_MOVE_COMMAND("[ERROR] 이동은 move source 위치 target 위치여야 합니다."),
-  INVALID_COMMAND("[ERROR] 유효하지 않은 명령입니다.");
+  INVALID_COMMAND("[ERROR] 유효하지 않은 명령입니다."),
+
+  ALREADY_RUNNING("[ERROR] 이미 진행 중인 게임입니다."),
+  NOT_RUNNING("[ERROR] 진행 중인 게임이 아닙니다.");
 
   private final String message;
 

src/main/java/chess/domain/game/ChessGame.java

@@ -0,0 +1,63 @@
+package chess.domain.game;
+
+import chess.domain.ErrorMessage;
+import chess.domain.board.Board;
+import chess.domain.piece.Piece;
+import chess.domain.piece.PieceInfo;
+import chess.domain.position.Color;
+import chess.domain.position.Position;
+
+public class ChessGame {
+
+  private final long id;
+  private State state;
+  private Color turn;
+  private final Board board;
+
+  public ChessGame(long id, Board board, Color turn) {
+    this.id = id;
+    this.state = State.WAITING;
+    this.board = board;
+    this.turn = turn;
+  }
+
+  public void start() {
+    if (state == State.RUNNING) {
+      throw new IllegalArgumentException(ErrorMessage.ALREADY_RUNNING.getMessage());
+    }
+    this.state = State.RUNNING;
+  }
+
+  public void end() {
+    this.state = State.FINISHED;
+  }
+
+  public void movePiece(Position source, Position target) {
+    checkRunning();
+    Piece capturedPiece = board.moveAndReturnPiece(source, target, turn);
+    checkKingCaptured(capturedPiece);
+    changeTurn();
+  }
+
+  public Double calculateScore(Color color) {
+    checkRunning();
+    return ScoreCalculator.calculate(board.getMap(), color);
+  }
+
+  private void checkRunning() {
+    if (state == State.RUNNING) {
+      return;
+    }
+    throw new IllegalArgumentException(ErrorMessage.NOT_RUNNING.getMessage());
+  }
+
+  private void checkKingCaptured(Piece capturedPiece) {
+    if (capturedPiece != null && capturedPiece.pieceType() == PieceInfo.KING) {
+      end();
+    }
+  }
+
+  private void changeTurn() {
+    turn = turn.changeTurn();
+  }
+}

src/main/java/chess/domain/game/State.java

@@ -0,0 +1,7 @@
+package chess.domain.game;
+
+public enum State {
+  WAITING,
+  RUNNING,
+  FINISHED
+}