for(y = 0; y < HEIGHT; y++) for(x = 0; x < WIDTH; x++) Next[y][x] = Cave[y][x];
for(y = 0; y < HEIGHT; y++) for(x = 0; x < WIDTH; x++) Draw[y][x] = Cave[y][x];
}
for(y = 0; y < HEIGHT; y++) for(x = 0; x < WIDTH; x++) Next[y][x] = Cave[y][x];
for(y = 0; y < HEIGHT; y++) for(x = 0; x < WIDTH; x++) Draw[y][x] = Cave[y][x];
}