C++

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Variable Trouble

racefreak (18)
Well, I've got a variable that I want to store in part of a variable. I tried
to use the iostream <<#<< way, but it hasn't worked. This is my current progress in the file:

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#include <allegro.h>
#include <cstdlib>
#include <time.h>
#include <iostream>

int die1num = 1;
int die2num = 1;
int die1draw;
int die2draw;
int timer = 1;
BITMAP* Image;
BITMAP* Die1;
BITMAP* Die2;
BITMAP* Die3;
BITMAP* Die4;
BITMAP* Die5;
BITMAP* Die6;

void endgame() {
     
     timer = 0;
     
     }

void diceroll() {
     
     die1num = rand() %6 + 1;
     die2num = rand() %6 + 1;
     die1draw = Die<<die1num<<;
     die2draw = Die<<die2num<<;
     timer = 1;
     
     acquire_screen();
     blit (die1draw, screen, 0, 0, 731, 450, 29, 29);
     blit (die2draw, screen, 0, 0, 700, 450, 29, 29);
     release_screen();
     
     }
                
int main() {
    
    allegro_init();
    install_keyboard();
    set_color_depth (16);
    set_gfx_mode (GFX_AUTODETECT, 920, 560, 0, 0);
    
    Image = load_bitmap ("Board.bmp", NULL);
    Die1 = load_bitmap ("Dice1.bmp", NULL);
    Die2 = load_bitmap ("Dice2.bmp", NULL);
    Die3 = load_bitmap ("Dice3.bmp", NULL);
    Die4 = load_bitmap ("Dice4.bmp", NULL);
    Die5 = load_bitmap ("Dice5.bmp", NULL);
    Die6 = load_bitmap ("Dice6.bmp", NULL);
    srand (time (NULL));
    
    acquire_screen();
    clear_to_color (screen, makecol (255, 255, 255));                  
    blit (Image, screen, 0, 0, 5, 20, 521, 521);
    blit (Die1, screen, 0, 0, 700, 450, 29, 29);
    blit (Die1, screen, 0, 0, 731, 450, 29, 29);
    release_screen();
    
    while (timer > 0) {
          
          clear_keybuf();
          readkey();
          if (key[KEY_ESC]) {
                            endgame();
                            break;
                            }
          else if (key[KEY_R]) {
                              diceroll();
                              }
          timer = 1;
          }
    
    destroy_bitmap (Image);
    destroy_bitmap (Die1);
    destroy_bitmap (Die2);
    destroy_bitmap (Die3);
    destroy_bitmap (Die4);
    destroy_bitmap (Die5);
    destroy_bitmap (Die6);
        
    return 0;
    
}

END_OF_MAIN();


I guess if you were using Batch, you would enable delayed expansion and type
!Die%die1num%!, but i don't know how to do this for C++ Any help? Thank you in advance!
ne555 (10692)
std::cout << "Die Bart, Die " << die1num << '\n';
racefreak (18)
This is Allegro, using graphics for the dice, and not text. I need a variable in a variable, and this won't work for my purposes. I need the variable for the random number to be part of the variable for the die image to show. This would just display text. You can see where I attempted already in void diceroll(), but the compiler just says that Die was not earlier defined as a variable. Can anyone help?
ne555 (10692)
Sorry, now I get it.

http://cplusplus.com/doc/tutorial/arrays/
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BITMAP* Die[6]; //an array (index goes from 0 to 5)
//loading
Die[2] = load_bitmap ("Dice3.bmp", NULL); //remember that start in 0

//choosing
BITMAP *die1draw = Die[rand() %6];
blit (die1draw, screen, 0, 0, 731, 450, 29, 29);



By the way, you should limit the scope of the variables.
racefreak (18)
No dice (no pun intended). I tried but the compiler says it's an illegal transition between BITMAP and Int, so it doesn't work, although it was a good idea that I managed to overlook. Thanks anyway. Any other suggestions?
ne555 (10692)
It should work, ¿can you post the updated code?
racefreak (18)
I don't know, maybe it's because I used Allegro 4.1, and not 5, but that's because 5 wouldn'r download. When the compiler said it didn't work, I deleted it, but I did it pretty much exactly as you said, but it didn't work. The compiler reads 'Illegal transition between BITMAP and Int', and stops. Any other ideas?
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