// File: snowmen.cxx
// Written by Michael Main (main@colorado.edu)
// This program opens a large, square graphics window and
// draws six snowmen of various sizes and locations.

// Directives:
#include <cstdlib>
#include <iostream>
#include <graphics.h>
using namespace std;

// Named constants:
const int S = 500; // Width and height of the graphics window.

// Prototypes:
// This function draws a snowman with the center of the body
// at (x,y), the radius of the body given by the 3rd
// paramter. The head is always right on top of the body
// with a radius that is half that of the body.
void draw_snowman(int x, int y, int radius);

// Function definitions:
//----------------------------------------------------------
int main( )
{
    // 1. Initialize the graphics window:
    initwindow(S, S, "At the north pole!");
    
    // 2. Draw six snowmen:
    draw_snowman(S/5, S/3, S/17);
    draw_snowman(S/5, 2*S/3, S/50);
    draw_snowman(int(0.73*S), int(0.64*S), S/6);
    draw_snowman(int(0.5*S), int(0.43*S), S/10);
    draw_snowman(int(0.88*S), int(0.12*S), S/73);
    draw_snowman(int(0.66*S), int(0.1*S), S/39);

    // 3. Finish:
    delay(10000);
    return EXIT_SUCCESS;
}
//----------------------------------------------------------

//----------------------------------------------------------
void draw_snowman(int x, int y, int radius)
{
    circle(x, y, radius); // Draw the body
    circle(x, y-3*radius/2, radius/2); // Draw the head
}
//----------------------------------------------------------