///////////////////////////////////////////////////////////////////
//
//	graphics2.cpp
//
//	Started in Pascal by Jeff Ondich on 1/25/95
//	Last modified 1/18/00
//
//	1. Try it.
//	2. The "polygon[3] = 100" notation is something
//		you will meet soon (polygon itself is
//		called an "array").  For this program,
//		all you need to know is that polygon[0]
//		and polygon[1] are the (x,y) coordinates
//		of the first corner of the polygon,
//		polygon[2] and polygon[3] are the coordinates
//		of the second corner, etc.
//	3. Identify which corner of the polygon has
//		which coordinates as listed in the source code.
//	4. Try to redesign the polygon to be a triangle
//		or a rectangle.
//	5. Change g2_polygon to g2_filled_polygon and
//		try the program again.
//
///////////////////////////////////////////////////////////////////

#include <iostream>
#include <g2++.h>
#include <g2_X11++.h>

const int windowHeight = 600;
const int windowWidth = 600;

int main()
{
	int window = g2_open_X11( windowWidth, windowHeight );
	g2_set_background( window, g2_ink(window,1,1,1) );

	cout << "Click in this terminal window and "
		<< "hit return when you're done." << endl;

	double	polygon[100];

	polygon[0] = 200;
	polygon[1] = 100;
	polygon[2] = 400;
	polygon[3] = 100;
	polygon[4] = 500;
	polygon[5] = 200;
	polygon[6] = 400;
	polygon[7] = 300;
	polygon[8] = 200;
	polygon[9] = 200;

	int red_ink = g2_ink( window, 1, 0, 0 );
	g2_pen( window, red_ink );
	g2_polygon( window, 5, polygon );

	cin.get();
	g2_close(window);

	return( 0 );
}