Dynamic BITMAP value

Hello, I'm trying to get the map1 bitmap value to be different images depending on what mapnum value is passed to it.

Code:

---

world_map2::world_map2(int mapnum)
{                                   
      map1=load_bitmap("images/maps/planet1.bmp", NULL);         
}

---

Thank you so much.

Wouldn't you need some type of arguments to do this?

if mapnum ==1 load this // if mapnum==2 load that.

Or, perhaps something funky and make your mapnum a string rather than an int. Doesn't matter what the character contained within the string is.

Code:

---

#include <iostream>
#include <string>

std::string get_number;

    void funky(std::string number)
    {
        std::string test="images/maps/planet";
       
        test.append(number);
        test.append(".bmp");
       
        std::cout<<test;
    }

int main ()
{
  std::cout<<" enter a number: ";
  std::cin>>get_number;
 
          funky(get_number);
         
  std::cin.ignore();
  std::cin.get();
 
        return 0;
}

---

I'm not sure if that'd work for you or not.

well, if you need to add bitmaps at runtime, I'd use an std::map.

Code:

---


std::map<int, std::string> bitmaps;

bitmaps[0] = "bmp1";
bitmaps[1] = "bmp2";

world_map2::world_map2(int mapnum)
{                                   
      map1=load_bitmap(bitmaps[mapnum], NULL);         
}

---

if not, then just hardcode an array

Code:

---

static const char* bitmaps[] =
{
"images/maps/planet1.bmp",
"images/maps/planetoftheapes.bmp",
"images/maps/hoth.bmp",
"images/maps/magarathea.bmp",
"images/maps/uranus.bmp" // heh heh
};

world_map2::world_map2(int mapnum)
{                                   
      map1=load_bitmap(bitmaps[mapnum], NULL);         
}

---