private int fireSession(BattleshipsPlayer attacker, BattleshipsPlayer defender, BoardImpl board) {
int maxShots = sizeX * sizeY;
int shots = 0;
while (board.getNumberOfShips() > 0 && shots < maxShots) {
Position pos = attacker.getFireCoordinates(board);
boolean hit = board.fire(pos);
attacker.hitFeedBack(hit, board);
defender.incoming(pos);
++shots;
}
return maxShots - shots;
}
