/*
  A simple applet to demonstrate java controlled VRML animations.

  Author: Kimbro Staken
  Date: Sept. 19, 1996
*/

import java.applet.Applet;
import java.lang.Thread;
import vrml.external.Browser;
import vrml.external.Node;
import vrml.external.field.*;
import netscape.plugin.Plugin;
import netscape.javascript.JSObject;

public class LogoAnim extends Applet {
  Browser browse;

  public void init() {
    //Get the Javascript object for the window where our applet resides.
    JSObject win = JSObject.getWindow(this);

    //Use the Javascript object to get a reference to the VRML plugin interface.
    browse = (Browser)win.eval("document.embeds[0]");

    Node mover = browse.getNode("logo");
    EventInSFVec3f translation = 
        (EventInSFVec3f)mover.getEventIn("set_translation");
    float value[] = new float[3];

    try {
      for (int j = -40; j < 7; j++) {
        Thread.sleep(100);
        value[0] = 0;
        value[1] = 0;
        value[2] = j;
        translation.setValue(value);
      }

      Thread.sleep(3000);

      for (int j = 6; j > -40; j--) {
        Thread.sleep(100);
        value[0] = 0;
        value[1] = 0;
        value[2] = j;
        translation.setValue(value);
      }
    }
    catch (Exception e) {
    }
  }
}