Planetarium

public void drawPlanets(GL gl)
 {
     GLU glu = new GLU(); // spheres
     GLUquadric glpQ=glu.gluNewQuadric();
     /** the sun in origo */
     /** Material of the sun*/
     someMaterials.SetMaterialGoldenSun(gl);
     /** radius 4 */
     glu.gluSphere(glpQ,4.0f,20,20);
     gl.glPushMatrix();
         /** a planet */
         /** This planets material */
         someMaterials.setMaterialGreenPlanet(gl);
         /** in XY-plane */
         gl.glRotatef(m_pV,1.0f,0.0f,0.0f);
         /** distance 7 */
         gl.glTranslatef(0.0f,7.0f,0.0f);
         /** radius 1 */
         glu.gluSphere(glpQ,1.0f,20,20);
         /** with its only moon */
         /** This moons material */
         someMaterials.setMaterialSilverMoon(gl);
         /** in YZ-pane (of planet) */
         gl.glRotatef(m_mV,1.0f,0.0f,0.0f);
         /** distance 1.5 */
         gl.glTranslatef(0.0f,1.5f,0.0f);
         /** radius 0.5 */
         glu.gluSphere(glpQ,0.5f,20,20);
     gl.glPopMatrix();
     gl.glPushMatrix();
         /** another planet */
         /** This planets material */
         someMaterials.setMaterialObsidianPlanet(gl);
         /** in XZ-plane */
         gl.glRotatef(m_pV2,0.0f,1.0f,0.0f);
         /** distance 10 */
         gl.glTranslatef(10.0f,0.0f,0.0f);
         /** radius 1 */
         glu.gluSphere(glpQ,1.0f,20,20);
         gl.glPushMatrix();
             /** with its first moon */
             /** These moons material */
             someMaterials.setMaterialWhiteMoon(gl);
             /** in XZ-pane (of planet) */
             gl.glRotatef(m_mV2,0.0f,1.0f,0.0f);
             /** distance 3 */
             gl.glTranslatef(3.0f,0.0f,0.0f);
             /** radius 0.5 */
             glu.gluSphere(glpQ,0.5f,20,20);
         gl.glPopMatrix();
         gl.glPushMatrix();
             /** and second moon */
             /** in XY-pane (of planet) */
             gl.glRotatef(m_mV2,0.0f,0.0f,1.0f);
             /** distance 2 */
             gl.glTranslatef(2.0f,0.0f,0.0f);
             /** radius 0.5 */
             glu.gluSphere(glpQ,0.5f,20,20);
         gl.glPopMatrix();
     gl.glPopMatrix();
     glu.gluDeleteQuadric(glpQ);
     // increment model movement
     m_Vz += 0.5f;  if (m_Vz > 360.0f) m_Vz = 0.5f;
     m_Vx += 0.1f;  if (m_Vx > 360.0f) m_Vx = 0.1f;
     m_pV += 0.1f;  if (m_pV > 360.0f) m_pV = 0.1f;
     m_mV += 0.9f;  if (m_mV > 360.0f) m_mV = 0.9f;
     m_pV2 += 0.2f; if (m_pV2 > 360.0f) m_pV2 = 0.2f;
     m_mV2 += 0.9f; if (m_mV2 > 360.0f) m_mV2 = 0.0f;
 }