#include <allegro.h>
#include <cstdlib>
#include <ctime>
#include <windows.h>

#define HEIGHT 640
#define WIDTH 480

void draw(int h, int w);
void draw_random();

int main()
{
    allegro_init();
    srand(time(NULL));

    set_gfx_mode(GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0);
    install_keyboard();

    clear_to_color(screen,makecol(255,255,255));

    draw(0,0);
    Sleep(3000);
    clear_to_color(screen,makecol(255,255,255));
    draw_random();

    while((readkey()& 0xff) != 27);
        allegro_exit();
    return 0;
}
END_OF_MAIN()

void draw(int h, int w)
{
    circle(screen,screen->w/2,screen->h/2,100, makecol(40,40,40));

    rect(screen,(screen->w/3),(screen->h/3),(screen->w/1.5),(screen->h/1.5), makecol(80,80,80));

    triangle(screen,(screen->w/3), (screen->h/2), (screen->w/2), (screen->h/4), (screen->w/1.5), (screen->h/2), makecol(120,120,120));

    line(screen, screen->w/4, screen->h/4.5, screen->w/1.25, screen->h/4.5, makecol(200,200,200));

    line(screen, screen->w/4, screen->h/1.25, screen->w/1.25, screen->h/1.25, makecol(200,200,200));

    line(screen, screen->w/4, screen->h/1.25, screen->w/4, screen->h/4.5, makecol(200,200,200));

    line(screen, screen->w/1.25, screen->h/1.25, screen->w/1.25, screen->h/4.5, makecol(200,200,200));

}

void draw_random()
{
    int x1 = rand()%screen->w;
    int y1 = rand()%screen->h;

    int random = rand()%screen->h/3;

    circle(screen, rand()%screen->w, rand()%screen->h, rand()%320, makecol(rand()%255,rand()%255,rand()%255));

    line(screen, rand()%screen->w, rand()%screen->h, rand()%screen->w, rand()%screen->h, makecol(rand()%255,rand()%255,rand()%255));

    rect(screen, x1, y1, x1+random , y1+random, makecol(rand()%255,rand()%255,rand()%255));

    triangle(screen, x1, y1, x1+random, y1, (x1+random/2), (y1+random), makecol(rand()%255,rand()%255,rand()%255));
}