// do some graphics using the WinBgi package from:
// http://csci.biola.edu/csci105/using_winbgi.html
//
// for Dev-C++ you need to fix graphics2.h and WinBgi2.cpp
// do change  unsigned int getpixel() to  int getpixel()
// 
// have WinBgi2.cpp in the working folder and add to project
// have graphics2.h in the working folder
// link with libgdi32.a
// this Dev-C++ project is a Console Application
 
#include <cstdio>
#include <cmath>
#include "graphics2.h"
 
using namespace std;
 
int main()
{
 	int GraphDriver = 0, GraphMode = 0;
 	// create graph window frame
	initgraph(&GraphDriver, &GraphMode, "", 640, 480); 
 
	// first draw two ellipses and a line ...
  setcolor(CYAN);
	setlinestyle(SOLID_LINE, 0, 2);  // 2 pixels wide
	//** ellipse(int x,int y,int sa,int ea,int rx,int ry)
  //**   center = x, y 
  //**   sa = start of arc  (0 to 360 degrees)
  //**   ea = end of arc
  //**   rx = length of horizontal axis (radius)
  //**   ry = length of vertical axis (radius)
	ellipse(320, 150, 0, 360, 150, 20);
 
	setcolor(LIGHTGREEN);
	setlinestyle(SOLID_LINE, 0, 3);  // 3 pixels wide
	ellipse(320, 150, 0, 360, 40, 90);
 
	setcolor(LIGHTRED);
	setlinestyle(SOLID_LINE, 0, 2);
             // line(int x1, int y1, int x2, int y2)
	line(20, 300, 600, 300);
 
	setcolor(YELLOW);
	settextstyle(DEFAULT_FONT, HORIZ_DIR, 2);
	outtextxy(20, 320, "Press any key ... ");
	getch();  // wait
 
	// now draw some fancy lines ...
  int x, y;
	int spokes = 6;  // triangle = 3,  more complex > 3
	double radians;
 
	setcolor(GREEN);
	radians = 360 / (spokes * 57.29578);
	for (x = 1; x <= spokes; x++) 
  {
		for (y = x; y <= spokes; y++) 
    {
			line((int)(sin(y * radians) * 225 + 320),(int)(cos(y * radians) * 145 + 150),
		  (int)(sin(x * radians) * 225 + 320),(int)(cos(x * radians) * 145 + 150));
		}
	}
	outtextxy(20,320,"Press any key ... ");
	getch();  // wait
 
	closegraph();
 
  return 0;
}