void load_map(int mapx, int mapy) {
     ostringstream out1;
     out1 << "data/maps/" << mapx << mapy << "/1.txt";
     ifstream mapfile1(out1.str().c_str());
     int y = 0;
     string mapline;
     if (mapfile1.is_open()) {
        while (!mapfile1.eof() && y < 12) {
            getline(mapfile1,mapline);
            for(int i = 0; i < 20; i++) {
                    map1[i][y] = mapline[i];        
            }
            y++;
        }
        mapfile1.close();
     }
     
     ostringstream out2;
     out2 << "data/maps/" << mapx << mapy << "/2.txt";
     ifstream mapfile2(out2.str().c_str());
     y = 0;
     if (mapfile2.is_open()) {
        while (!mapfile2.eof() && y < 12) {
            getline(mapfile2,mapline);
            for(int i = 0; i < 20; i++) {
                    map2[i][y] = mapline[i];        
            }
            y++;
        }
        mapfile2.close();
     }
     
     ostringstream out3;
     out3 << "data/maps/" << mapx << mapy << "/3.txt";
     ifstream mapfile3(out3.str().c_str());
     y = 0;
     if (mapfile3.is_open()) {
        while (!mapfile3.eof() && y < 12) {
            getline(mapfile3,mapline);
            for(int i = 0; i < 20; i++) {
                    map3[i+1][y+1] = mapline[i];        
            }
            y++;
        }
        mapfile3.close();
     }
     
     ostringstream out4;
     out4 << "data/maps/" << mapx << mapy << "/4.txt";
     ifstream mapfile4(out4.str().c_str());
     y = 0;
     if (mapfile4.is_open()) {
        while (!mapfile4.eof() && y < 12) {
            getline(mapfile4,mapline);
            for(int i = 0; i < 20; i++) {
                    map4[i+1][y+1] = mapline[i];        
            }
            y++;
        }
        mapfile4.close();
     }
}