Thread: Random arrows to come after each other

I can't understand your question.

The RANDOM array serves no identifiable purpose.

This

Code:

else if (btn==(DOWN)||(LEFT)||(RIGHT))

should be

Code:

else if (btn == DOWN || btn == LEFT || btn == RIGHT)

thanks for the respond.
look right now one arrow comes and after it key is pressed will be gone.and there will be always only one arrow in the screen. i want arrows to come after each other like if didn't press any key after every 300 milisecods an other arrow appear in the screen while the arrow before is still in the screen.
and about the array a had written this program with out it but one of my friends told me the thing i want to do is possible if i write it with array so i write it with array.
i hope you understand my problem now.
thanks

I think I understand what you want.

In Up you have a loop going from 80 down to 16. If it reaches 16, the game is over. There is a delay of 100ms between each iteration of the loop and it draws an arrow (the same arrow) every iteration. You want other arrows to be displayed while this loop is still going on, every 300ms. I don't know if you want the arrows drawn on top of each other, beside each other. I don't know what your game looks like at all so its hard to think about it.

Anyway, hopefully you can see the difficulty with the current design. I don't know how to fix it without an overhaul. It seems unlikely that the loop should be in Up, but again I don't know what your program is supposed to do. Looks like some very strange recursive calls going on there.

You'd have to post the whole program.

ok i was working non stop and i finally did it using this code :

Code:

void Random(int x)
{
    if(x == 1){
        int a ;
        srand(time(NULL));
        a = rand() % 4;
        switch(a){
        case 0 : 
            ArrowShape[Arrow] = 'w';
            break;
        case 1 : 
            ArrowShape[Arrow] = 's';
            break;
        case 2 : 
            ArrowShape[Arrow] = 'a';
            break;
        case 3 : 
            ArrowShape[Arrow] = 'd';
            break;
        }
        Arrow++;
    }
    system("cls");
    int k;
    gotoxy(2,8);
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),121);
    for(k = 0; k < Arrow ;k++){
        switch(ArrowShape[k]){
            case 'w' :
                char btn;
                if(!kbhit())
                {
                gotoxy(80 - (Arrow - k)*8,17);        
                printf("/\\");
                gotoxy(80 - (Arrow - k)*8,18);
                printf("||");    
                gotoxy(80 - (Arrow - k)*8,19);
                printf("||");                
                Sleep(200);
            }
                if((80 - (Arrow*8)) == 16)
                {
                    GameOver();
                    break;
             }
        break;




            case 's' : 
                gotoxy(80 - (Arrow - k)*8,17);        
                printf("||");
                gotoxy(80 - (Arrow - k)*8,18);        
                printf("||");
                gotoxy(80 - (Arrow - k)*8,19);
                printf("\\/");
                Sleep(200);
                if((80 - (Arrow*8)) <= 16)
                {
                    GameOver();
                    break;
                }
            break;
            case 'a' : 
                gotoxy(80 - (Arrow - k)*8,17);        
                printf("/---");
                gotoxy(80 - (Arrow - k)*8,18);        
                printf("\\---");
                Sleep(200);
                if((80 - (Arrow*8)) <= 16)
                {
                    GameOver();
                    break;
                }
            break;
            case 'd' :
                gotoxy(80 - (Arrow - k)*8,17);        
                printf("---\\");
                gotoxy(80 - (Arrow - k)*8,18);        
                printf("---/");
                Sleep(200);
                if((80 - (Arrow*8)) <= 16)
                {
                    GameOver();
                    break;
                }
            break;
        }
    }


}

but now the problem is that i dont how to make the arrow in left deleted when i click one of W,A,S or D keys.any ideas how to do that?
thanks

srand(time(NULL)) should only be called once in the entire run of your program. Put it early in main.

Look how much cleaner your code can look:

Code:

BOOL setAttr(WORD w) {
    return SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), w);
}

void printat(int x, int y, const char *str) {
    gotoxy(x, y);
    printf("%s", str);
}

void Random(int x) {
    if (x == 1)
        ArrowShape[Arrow++] = "wsad"[rand() % 4];

    system("cls");
    setAttr(121);

    int k;
    for (k = 0; k < Arrow; k++) {
        int x = 80 * (Arrow - k) * 8;

        switch (ArrowShape[k]) {
        case 'w':
            printat(x, 17, "/\\");
            printat(x, 18, "||");    
            printat(x, 19, "||");                
            break;
        case 's':
            printat(x, 17, "||");
            printat(x, 18, "||");
            printat(x, 19, "\\/");
            break;
        case 'a':
            printat(x, 17, "/---");
            printat(x, 18, "\\---");
            break;
        case 'd':
            printat(x, 17, "---\\");
            printat(x, 18, "---/");
            break;
        }

        Sleep(200);
        if (80 - (Arrow * 8) == 16)
            GameOver();
    }
}

I think you are asking how to remove the displayed arrow from the screen when the matching key (w,a,s,d) is pressed. You would need to remove that arrow from the ArrowShape array (presumably shifting the array contents over).

Is more than one arrow of the same direction allowed? Is it possible for more than 4 arrows to be displayed?