import net.java.games.jogl.*;

public class AnimGLEventListener implements GLEventListener
{

  float tri = 0.0f;


  public void init(GLDrawable drawable)
  {
    GL gl = drawable.getGL();
    gl.setSwapInterval(0);
  }

  public void display(GLDrawable drawable)
  {
    GL gl = drawable.getGL();
    gl.glMatrixMode(GL.GL_MODELVIEW);
    gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
    gl.glLoadIdentity();

    gl.glTranslatef(-0.4f,0.0f,0.0f);
    gl.glRotatef(tri,0.0f,1.0f,0.0f);

    gl.glBegin(GL.GL_TRIANGLE_FAN);
    gl.glColor3f(1.0f,0.0f,0.0f);
    gl.glVertex3f(-0.2f,0.0f,0.0f);
    gl.glColor3f(0.0f,1.0f,0.0f);
    gl.glVertex3f(0.2f,0.0f,0.0f);
    gl.glColor3f(0.0f,0.0f,1.0f);
    gl.glVertex3f(0.0f,0.6f,0.0f);
    gl.glEnd();

    gl.glLoadIdentity();
    gl.glTranslatef(0.4f,0.0f,0.0f);
    gl.glRotatef(tri,1.0f,0.0f,0.0f);
    gl.glBegin(GL.GL_TRIANGLE_FAN);
    gl.glColor3f(1.0f,0.0f,0.0f);
    gl.glVertex3f(-0.2f,0.0f,0.0f);
    gl.glColor3f(0.0f,1.0f,0.0f);
    gl.glVertex3f(0.2f,0.0f,0.0f);
    gl.glColor3f(0.0f,0.0f,1.0f);
    gl.glVertex3f(0.0f,0.6f,0.0f);
    gl.glEnd();

    if(tri < 360.f)
      tri += 0.5f;
    else
      tri = 0.0f;
  }

  public void reshape(GLDrawable drawable, int x, int y, int width, int height)
  {

  }

  public void displayChanged(GLDrawable drawable, boolean modeChanged, boolean deviceChanged)
  {

  }

}