21-4

#include <stdio.h>
#include <stdlib.h>
#include <Windows.h>
#include <conio.h>

int main()
{
    int i,j,xu,yu,xo=0,yo=0,k=1,boja=15;
    randomize();
    do{
    xu=random(80);
    }while(xu==0||xu==1);
    do{
    yu=random(24);
    }while(yu==0||yu==1);
    printf("%c",201);
    for(i=1;i<=78;i++)printf("%c",205);
    printf("%c",187);
    for(j=1;j<=22;j++)
        {
            printf("%c",186);
            for(i=1;i<=78;i++)printf(" ");
            printf("%c",186);
        }
    printf("%c",200);
    for(i=1;i<=78;i++)printf("%c",205);
    printf("%c",188);
    gotoxy(1,25);
    printf("Kretanje - W,A,S,D   Trag - SPACE   Promena boje - 0-9");
    gotoxy(68,25);
    printf("Autor: Mikec"); // ;)
    while(1){
    gotoxy(xu,yu);
    printf("%c",254);

            gotoxy(xu,yu);
            textcolor(boja);
            if(k%2==0)cprintf("*");
            else printf(" ");
            gotoxy(xu+xo,yu+yo);
            xu=wherex();
            yu=wherey();
            printf("%c",254);
            Sleep(100); // BRZINA kretanja
            if(kbhit())
                    switch(getch())
        {
            case 'a': xo=-1; yo=0; break;
            case 'd': xo=1; yo=0; break;
            case 'w': xo=0; yo=-1; break;
            case 's': xo=0; yo=1; break;
            case 32: k++; break;
            case '0': boja=1; break;
            case '1': boja=2; break;
            case '2': boja=3; break;
            case '3': boja=4; break;
            case '4': boja=5; break;
            case '5': boja=6; break;
            case '6': boja=11; break;
            case '7': boja=8; break;
            case '8': boja=9; break;
            case '9': boja=10; break;
            default: gotoxy(xu,yu);
        }
    if(xu==79&&xo==1){gotoxy(xu,yu); if(k%2==0)cprintf("*"); else printf(" "); xu=2;}
    if(xu==2&&xo==-1){gotoxy(xu,yu); if(k%2==0)cprintf("*"); else printf(" "); xu=79;}
    if(yu==2&&yo==-1){gotoxy(xu,yu); if(k%2==0)cprintf("*"); else printf(" "); yu=23;}
    if(yu==23&&yo==1){gotoxy(xu,yu); if(k%2==0)cprintf("*"); else printf(" "); yu=2;}

    }
    return 0;
}