Thread: Question about C++ Graphics...

So far I've gotten my program to display a bunch of pixels in varying colors that appear randomly on a screen. I was wondering if it is possible to have the pixels move downward, kind of like you're moving forward in space in a spaceship. This is my program so far, it's very simplistic but does what I need it to.

Code:

#include <conio.h>
#include <graphics.h>
#include <dos.h>
#include <stdlib.h>

int main() {
    int gd = DETECT, gm;
    int i, x, y;
    initgraph(&gd, &gm, "C:\\TC\\BGI");
    initwindow(1200, 768);

      /* color 500 random pixels on screen */
   for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,1);
      }

      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,2);
      }

      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,3);
      }

      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,4);
      }

      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,5);
      }

      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,6);
      }

      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,7);
      }

      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,8);
      }

      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,9);
      }
      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,9);
      }
      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,10);
      }
      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,11);
      }
      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,12);
      }
      for(i=0; i<=125; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,13);
      }
      for(i=0; i<=100; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,14);
      }

      for(i=0; i<=900; i++) {
       x=rand()%getmaxx();
          y=rand()%getmaxy();
          putpixel(x,y,15);
      }

    getch();
    closegraph();
    return 0;
}

Any help would be greatly appreciated.

Code:

struct point {
    int x,y,colour;
};

Create an array of those.
Use a loop to fill the array.
Use a loop to draw it.
Use a loop to move points in some manner.