Linux Simple C++ Game 2

    #include<iostream>
    #include<stdlib.h>
    #include<conio.h> //curses.h for linux
    using namespace std;
    int lvl = 1;
    char map[10][20][20];
    int hp = 10;
    int hpmax = 10;
    int main() {
    char input;
    int x = 5;
    int y = 5;
   int cx = 4;
   int cxm = 10;
   int cy = 4;
   int cym = 10;
       for(int gx = 0; gx <= 20; gx++) {
       for(int gy = 0; gy <= 20; gy++)
       map[0][gy][gx] = 'x';
       }
       for(int ey = 3; ey <= 17; ey++) {
       for(int ex = 3; ex <= 17; ex++)
       map[0][ey][ex] = ' ';
       }
       map[0][11][11] = 'B';
       map[0][15][14] = 'B';
       map[0][4][4] = 'B';
       map[0][5][5] = '0';
       for(int gx = 0; gx <= 20; gx++) {
       for(int gy = 0; gy <= 20; gy++)
       map[1][gy][gx] = 'x';
       }
       for(int ey = 3; ey <= 17; ey++) {
       for(int ex = 3; ex <= 17; ex++)
       map[1][ey][ex] = '.';
       }
       map[1][6][11] = 'B';
       map[1][7][14] = 'B';
       map[1][7][9] = 'B';
       map[1][5][5] = '0';
       while(1) {
          system("cls");
          for(int row = cx; row <= cxm; row++) {
          for(int col = cy; col <= cym; col++)
          cout << map[lvl][col][row];
          cout << endl;
          }
          input = _getch();
          switch(input) {
             case 'd':
                if(map[lvl][y+1][x] == 'x') break;
                map[lvl][y][x] = '.';
                y += 1;
            if(cx >= x && cxm <= x) {
            cy--;
            cym--;
            } else {
               cy++;
               cym++;
            }
                map[lvl][y][x] = '0';
                break;
             case 'a':
                if(map[lvl][y-1][x] == 'x') break;
                map[lvl][y][x] = '.';
                y -= 1;
            if(cx >= x && cxm <= x) {
            cy++;
            cym++;
            } else {
               cy--;
               cym--;
            }
                map[lvl][y][x] = '0';
                break;
             case 's':
                if(map[lvl][y][x+1] == 'x') break;
                map[lvl][y][x] = '.';
                x += 1;
            if(cx >= x && cxm <= x) {
            cx--;
            cxm--;
            } else {
               cx++;
               cxm++;
            }
                map[lvl][y][x] = '0';
                break;
             case 'w':
                if(map[lvl][y][x-1] == 'x') break;
                map[lvl][y][x] = '.';
                x -= 1;
            if(cx >= x && cxm <= x) {
            cx++;
            cxm++;
            } else {
               cxm--;
               cx--;
            }
                map[lvl][y][x] = '0';
                break;
       }
       }
    }