import java.applet.Applet;
import java.awt.Graphics;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;

import java.lang.System;
import java.util.Date;

// must import jgl.GL....
import jgl.GL;
import jgl.GLAUX;

public class material extends Applet
		      implements ComponentListener {
    // must use GL to use jGL.....
    // and use GLAUX to use the aux functions.....
    // remember to give GL to initialize GLAUX
    GL myGL = new GL ();
    GLAUX myAUX = new GLAUX (myGL);

    private void myinit () {
	float ambient [] = {0.0f,0.0f,0.0f,1.0f};
	float diffuse [] = {1.0f,1.0f,1.0f,1.0f};
	float specular [] = {1.0f,1.0f,1.0f,1.0f};
	float position [] = {0.0f,3.0f,2.0f,0.0f};
	float lmodel_ambient [] = {0.4f,0.4f,0.4f,1.0f};
	float local_view [] = {0.0f};

	myGL.glEnable (GL.GL_DEPTH_TEST);
	myGL.glDepthFunc (GL.GL_LESS);

	myGL.glLightfv (GL.GL_LIGHT0, GL.GL_AMBIENT, ambient);
	myGL.glLightfv (GL.GL_LIGHT0, GL.GL_DIFFUSE, diffuse);
	myGL.glLightfv (GL.GL_LIGHT0, GL.GL_POSITION, position);
	myGL.glLightModelfv (GL.GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
	myGL.glLightModelfv (GL.GL_LIGHT_MODEL_LOCAL_VIEWER, local_view);

	myGL.glEnable (GL.GL_LIGHTING);
	myGL.glEnable (GL.GL_LIGHT0);

	myGL.glClearColor (0.0f, 0.1f, 0.1f, 0.0f);
    }

    private void display () {
	float no_mat[]={0.0f,0.0f,0.0f,1.0f};
	float mat_ambient[]={0.7f,0.7f,0.7f,1.0f};
	float mat_ambient_color[]={0.8f,0.8f,0.2f,1.0f};
	float mat_diffuse[]={0.1f,0.5f,0.8f,1.0f};
	float mat_specular[]={1.0f,1.0f,1.0f,1.0f};
	float no_shininess[]={0.0f};
	float low_shininess[]={5.0f};
	float high_shininess[]={100.0f};
	float mat_emission[]={0.3f,0.2f,0.2f,0.0f};

	Date startTime = new Date ();
	myGL.glClear (GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);

	/*  draw sphere in first row, first column
	 *  diffuse reflection only; no ambient or specular
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (-3.75f, 3.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, no_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, no_mat);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in first row, second column
	 *  diffuse and specular reflection; low shininess; no ambient
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (-1.25f, 3.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, mat_specular);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, low_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, no_mat);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in first row, third column
 	 *  diffuse and specular reflection; high shininess; no ambient
 	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (1.25f, 3.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, mat_specular);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, high_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, no_mat);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in first row, fourth column
	 *  diffuse reflection; emission; no ambient or specular reflection
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (3.75f, 3.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, no_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, mat_emission);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in second row, first column
	 *  ambient and diffuse reflection; no specular
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (-3.75f, 0.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, mat_ambient);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, no_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, no_mat);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in second row, second column
	 *  ambient, diffuse and specular reflection; low shininess
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (-1.25f, 0.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, mat_ambient);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, mat_specular);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, low_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, no_mat);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in second row, third column
	 *  ambient, diffuse and specular reflection; high shininess
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (1.25f, 0.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, mat_ambient);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, mat_specular);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, high_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, no_mat);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in second row, fourth column
	 *  ambient and diffuse reflection; emission; no specular
	 */
	myGL.glPushMatrix (); 
	    myGL.glTranslatef (3.75f, 0.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, mat_ambient);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, no_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, mat_emission);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in third row, first column
	 *  colored ambient and diffuse reflection; no specular
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (-3.75f, -3.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, mat_ambient_color);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, no_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, no_mat);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in third row, second column
	 *  colored ambient, diffuse and specular reflection; low shininess
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (-1.25f, -3.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, mat_ambient_color);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, mat_specular);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, low_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, no_mat);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in third row, third column
	 *  colored ambient, diffuse and specular reflection; high shininess
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (1.25f, -3.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, mat_ambient_color);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, mat_specular);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, high_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, no_mat);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	/*  draw sphere in third row, fourth column
	 *  colored ambient and diffuse reflection; emission; no specular
	 */
	myGL.glPushMatrix ();
	    myGL.glTranslatef (3.75f, -3.0f, 0.0f);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_AMBIENT, mat_ambient_color);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_DIFFUSE, mat_diffuse);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SPECULAR, no_mat);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_SHININESS, no_shininess);
	    myGL.glMaterialfv (GL.GL_FRONT, GL.GL_EMISSION, mat_emission);
	    myAUX.auxSolidSphere (1.0);
	myGL.glPopMatrix ();

	myGL.glFlush ();

	Date endTime = new Date ();
	System.out.println ("Run Time : " + (endTime.getTime () - startTime.getTime ()) + " ms");
    }

    public void componentMoved (ComponentEvent e) {}
    public void componentShown (ComponentEvent e) {}
    public void componentHidden (ComponentEvent e) {}

    public void componentResized (ComponentEvent e) {
        // get window width and height by myself
	myReshape (getSize ().width, getSize ().height);
        display ();
	repaint ();
    }

    private void myReshape (int w, int h) {
        myGL.glViewport (0, 0, w, h);
        myGL.glMatrixMode (GL.GL_PROJECTION);
        myGL.glLoadIdentity ();
	if (w <= (h * 2)) {
	    myGL.glOrtho (-6.0f,  6.0f,
			  -3.0f * ((float)h * 2) / (float)w,
			   3.0f * ((float)h * 2) / (float)w,
			 -10.0f, 10.0f);
	} else {
            myGL.glOrtho (-6.0f * (float)w / ((float)h * 2),
            		   6.0f * (float)w / ((float)h * 2),
			  -3.0f,  3.0f,
			 -10.0f, 10.0f);
	}
        myGL.glMatrixMode (GL.GL_MODELVIEW);
    }

    public void update (Graphics g) {
        // skip the clear screen command....
        paint (g);
    }

    public void paint (Graphics g) {
	myGL.glXSwapBuffers (g, this);
    }

    public void init () {
	myAUX.auxInitPosition (0, 0, 600, 450);
	myAUX.auxInitWindow (this);
	myinit ();

	// as call auxReshapeFunc()
        addComponentListener (this);
	myReshape (getSize ().width, getSize ().height);

        // call display as call auxMainLoop(display);
        display ();
    }

}