Question

I have faced a problem while designing chess game.
There are 2 Player: p1, p2;
I want to implement the class in such awy that same player can not call makeMove twice simultaneously.

see the example.

class Move {};
class Player {
    void makeMove(Move *m) {

    }
};

// situation 1:

Player p1;
p1.makeMove(new move());
p1.makeMove(new move());   // it should give error

// situation 2:

Player p1;
p1.makeMove(new move());
Player p2;
p2.makeMove(new move());

p1.makeMove(new move());   // it os ok

Please help me in designing the classes

Answer 1

First of all, I don’t think that Player class should be responsible for that. It would be better of with something like

class ChessEngine
{
   void MovePlayer(Player *player, Move *move)
   {

   }
}

In which ChessEngine could have a list of previous moves and then check if player is allowed to move.