/**
 Department of Computer Science
 Purdue University
 Jan 13, 2012
 CS334 Assignment #0 Warm-up Assignment
 **/
#include <G3D/G3DAll.h>
#include <GLG3D/GLG3D.h>

////////////
// Define necessary globals here
// *** add code ***
////////////

G3D_START_AT_MAIN();


void drawFrame(int w, int h) {

	// Set up the camera and window space; here spans (-10, -10) to (+10, +10)
    glViewport(0, 0, w, h);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluOrtho2D(-10.0f, 10.0f, -10.0f, 10.0f);
	
    glClearColor(0.0f, 0.2f, 0.4f, 1.0f);
    glClearDepth(1.0f);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LEQUAL);
    glDisable(GL_LIGHTING);
	
    // Move the line in camera space
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();

	///////////////
	// *** add code below ***

	// update position of two 2D points

	// bounce points off the edge of the window 

	// draw a line using GL_LINES
	
	// *** add code above ***
	///////////////
   
}

int main(int argc, char** argv) {
    RenderDevice* rd = new RenderDevice();
    OSWindow::Settings settings;

    settings.width = 960;
    settings.height = 600;

    rd->init(settings);

	////////////
	// compute random initial position and velocity of two 2D points within the application window
	// ** add code here ***
	///////////

 	for (int i=0; i<300; i++) {

		// draw frame
        drawFrame(settings.width, settings.height);

        // Render at 30 fps
        System::sleep(1.0/30.0);

        // See also RenderDevice::beginFrame, RenderDevice::endFrame
        rd->swapBuffers();
    }

    rd->cleanup();
    delete rd;

    return 0;
}