我在使用C ++中两个类之间的属性时遇到问题。我创建了两个类：Board和Player。
在Board类中，我具有以下功能：
Decision makeMove(Move *move, Player::Side side);
我需要将以下类型的变量作为参数传递：
enum Side{BLACK,WHITE};
Side side;
在文件下方的Player类中。
我添加了错误：
Engine.h:55:35: error: ‘Player’ has not been declared
Decision makeMove(Move *move, Player::Side side);
^~~~~~
Engine.h:55:48: error: expected ‘,’ or ‘...’ before ‘side’
Decision makeMove(Move *move, Player::Side side);
^~~~
Engine.h:56:36: error: ‘Player’ has not been declared
vector <Move*>getAllValidMoves(Player::Side side);
^~~~~~
Engine.h:56:49: error: expected ‘,’ or ‘...’ before ‘side’
vector <Move*>getAllValidMoves(Player::Side side);
^~~~
这些是董事会和玩家类：
class Board {
private:
enum Type {EMPTY, WHITE, BLACK, WHITE_KING, BLACK_KING};
vector<Type>cell;
vector<vector<Type>>board;
int numWhiteNormalPieces;
int numBlackNormalPieces;
int numBlackKingPieces;
int numWhiteKingPieces;
public:
enum Decision {COMPLETED,FAILED_MOVING_INVALID_PIECE,FAILED_INVALID_DESTINATION,ADDITIONAL_MOVE,GAME_ENDED};
public:
Board();
Board(vector<vector<Type>>board);
Type getPiece(int row, int col);
Type getPiece(Point *point);
vector<vector<Type>>getBoard();
int getNumWhitePieces();
int getNumBlackPieces();
int getNumWhiteKingPieces();
int getNumBlackKingPieces();
int getNumWhiteNormalPieces();
int getNumBlackNormalPieces();
Decision makeMove(Move *move, Player::Side side);
vector <Move*>getAllValidMoves(Player::Side side);
// Point* findMidSquare(Move *move);
// bool isMovingOwnPiece(int row, int col, Player::Side side);
// vector <Move*>getValidMoves(int row, int col, Player::Side side);
// vector <Move*>getValidSkipMoves(int row, int col, Player::Side side);
// bool isOpponentPiece(Player::Side current, Type opponentPiece);
Board clone();
// bool contains(vector<Move*> possibleMoves,Move *move);
private:
void setUpBoard();
void setUpTestBoard();
void populateEmptyOnBoard();
};
class Player {
public:
string name;
enum Side{BLACK,WHITE};
Side side;
Player(string name, Side side);
Player(Side side);
Board::Decision makeMove(Move *m, Board b);
Board::Decision makeRandomMove(Board b);
string toString();
};
我需要能够访问这些类的属性，而不管它们在文件中的放置顺序。 （如Java或C＃）