void Map::closestEnemy(int x, int y, int &enemyX, int &enemyY, int armiNum) {
    int distance = 100, aDistance;
    int ax, ay;
    int targetX, targetY;

    for (int i = 0; i < _armies[armiNum].size(); i++) {
        _armies[armiNum][i]->getPosition(ax, ay);
        targetX = abs(ax - x);
        targetY = abs(ay - y);
        aDistance = targetX + targetY;
        if (aDistance < distance) {
            enemyX = ax;
            enemyY = ay;
            distance = aDistance;
        }
    }
}