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package glredbook10;
import com.sun.opengl.util.gl2.GLUT;
import java.awt.event.*;
import javax.swing.*;
import javax.media.opengl.*;
import javax.media.opengl.awt.GLJPanel;
import javax.media.opengl.glu.GLU;
/**
* The planets (from planet.c) have been rotated so their polar regions are
* north/south. Interaction: pressing the left, right, up, and down arrow keys
* alters the rotation of the planet around the sun.
*
* @author Kiet Le (Java port) Ported to JOGL 2.x by Claudio Eduardo Goes
*/
public class planetup//
extends GLSkeleton<GLJPanel>
implements GLEventListener, KeyListener {
private GLU glu;
private GLUT glut;
private static int year = 0, day = 0;
@Override
protected GLJPanel createDrawable() {
GLCapabilities caps = new GLCapabilities(null);
//
GLJPanel panel = new GLJPanel(caps);
panel.addGLEventListener(this);
panel.addKeyListener(this);
return panel;
}
public static void main(String[] args) {
planetup demo = new planetup();
//
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame frame = new JFrame("planetup");
frame.setSize(500, 500);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(demo.drawable);
frame.setVisible(true);
demo.drawable.requestFocusInWindow();
}
public void init(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
glu = new GLU();
glut = new GLUT();
//
gl.glShadeModel(GL2.GL_FLAT);
}
public void display(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
//
gl.glClear(GL.GL_COLOR_BUFFER_BIT);
gl.glColor3f(1.0f, 1.0f, 1.0f);
gl.glPushMatrix();
/* draw sun */
gl.glPushMatrix();
gl.glRotatef(90.0f, 1.0f, 0.0f, 0.0f); /* rotate it upright */
glut.glutWireSphere(1.0f, 10, 10);
gl.glPopMatrix();
/* draw smaller planet */
gl.glRotatef((float) year, 0.0f, 1.0f, 0.0f);
gl.glTranslatef(2.0f, 0.0f, 0.0f);
gl.glRotatef((float) day, 0.0f, 1.0f, 0.0f);
gl.glRotatef(90.0f, 1.0f, 0.0f, 0.0f); /* rotate it upright */
glut.glutWireSphere(0.2f, 10, 10);
gl.glPopMatrix();
gl.glFlush();
}
public void reshape(GLAutoDrawable drawable, int x, int y, int w, int h) {
GL2 gl = drawable.getGL().getGL2();
//
gl.glViewport(0, 0, w, h);
gl.glMatrixMode(GL2.GL_PROJECTION);
gl.glLoadIdentity();
glu.gluPerspective(60.0, (float) w / (float) h, 1.0, 20.0);
gl.glMatrixMode(GL2.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glTranslatef(0.0f, 0.0f, -5.0f);
}
public void displayChanged(GLAutoDrawable drawable, boolean modeChanged,
boolean deviceChanged) {
}
private void dayAdd() {
day = (day + 10) % 360;
}
private void daySubtract() {
day = (day - 10) % 360;
}
private void yearAdd() {
year = (year + 5) % 360;
}
private void yearSubtract() {
year = (year - 5) % 360;
}
public void keyTyped(KeyEvent key) {
}
public void keyPressed(KeyEvent key) {
switch (key.getKeyCode()) {
case KeyEvent.VK_ESCAPE:
System.exit(0);
break;
case KeyEvent.VK_LEFT:
case KeyEvent.VK_A:
yearSubtract();
break;
case KeyEvent.VK_RIGHT:
case KeyEvent.VK_D:
yearAdd();
break;
case KeyEvent.VK_UP:
case KeyEvent.VK_W:
dayAdd();
break;
case KeyEvent.VK_DOWN:
case KeyEvent.VK_S:
daySubtract();
break;
default:
break;
}
super.refresh();
}
public void keyReleased(KeyEvent key) {
}
public void dispose(GLAutoDrawable arg0) {
}
}
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