//  vrml52.java



import java.awt.*;

import java.applet.*;

import vrml.external.field.*;

import vrml.external.Node;

import vrml.external.Browser;

import vrml.external.exception.*;



public class vrml53 extends Applet  {

  TextArea output   = null;

  Browser browser   = null;

  Node material   = null;

  EventInSFColor diffuseColor = null;

  EventOutSFColor outputColor = null;

  EventOutSFTime touchTime = null;

  boolean error = false;

  

  public void init()  {

    System.out.println("CreateTest.init()...");

    output = new TextArea(5,40);

    add(output);

  }

  

  public void start() {

    System.out.println("CreateTest.start()...");

    output.appendText("\nCreateTest.Start()...\n");

    

    browser = (Browser) vrml.external.Browser.getBrowser(this);

    

    output.appendText("Got the browser\n");

    System.out.println("Got the browser; " + browser);

    

    try {

      output.appendText("Starting scene setup...\n");

      

      Node[] scene = browser.createVrmlFromString("DEF Camera Viewpoint  {\n" + "  position 0 0 5  }\n"

        + "DEF MySphere Transform {}\n");

      output.appendText("-Created Viewpoint and Transform nodes...\n");

      if (scene.length != 2)  {

        output.appendText("Uh Oh..scene was only " + scene.length + "nodes long (expected 2)! Aborting...\n");

        return;

      }

      

      Node[] shape = browser.createVrmlFromString("Shape {}");

      output.appendText("-Created Shape node...\n");

      if (shape.length != 1)  {

        output.appendText("Uh Oh..shape was " + shape.length + "nodes long (expected1)! Aborting...\n");

        return;

      }

      

      Node[] appearance = browser.createVrmlFromString("Appearance {}");

      output.appendText("-Created Appearance node...\n");

      if (appearance.length != 1) {

        output.appendText("Uh Oh..appearance was " + appearance.length + "nodes long (expected1)! Aborting...\n");

        return;

      }

      

      Node[] geometry = browser.createVrmlFromString("Sphere {}");

      output.appendText("-Created Sphere node...\n");

      if (geometry.length != 1) {

        output.appendText("Uh Oh..geometry was " + geometry.length + "nodes long (expected1)! Aborting...\n");

        return;

      }

      

      Node[] material = browser.createVrmlFromString("Material {}");

      output.appendText("-Create Material node...\n");

      if (material.length != 1) {

        output.appendText("Uh Oh..material was " + material.length + "nodes long (expected1)! Aborting...\n");

        return;

      }

      

      output.appendText("-Setting Material color...\n");

      EventInSFColor set_diffuseColor = (EventInSFColor) material[0].getEventIn("diffuseColor");

      

      float[] col = new float[3];

      col[0] = 0.2f; col[1] = 0.2f; col[2] = 0.8f;

      set_diffuseColor.setValue(col);

      

      output.appendText("- Hooking up all the nodes...\n");

      

      EventInSFNode nodeIn = (EventInSFNode) appearance[0].getEventIn("set_material");

      nodeIn.setValue(material[0]);

      

      nodeIn = (EventInSFNode) shape[0].getEventIn("set_appearance");

      nodeIn.setValue(appearance[0]);

      

      nodeIn = (EventInSFNode) shape[0].getEventIn("set_geometry");

      nodeIn.setValue(geometry[0]);

      

      EventInMFNode nodesIn = (EventInMFNode) scene[1].getEventIn("addChildren");

      nodesIn.setValue(shape);

      

      output.appendText("- Calling Browser.replaceWorld...\n");

      browser.replaceWorld(scene);

    }

    

    catch (InvalidVrmlException ie) {

      output.appendText("Problem! " + ie);

    }

    catch (InvalidEventInException ei)  {

      output.appendText("Problem! " + ei);

    }

    catch (ArrayIndexOutOfBoundsException oob)  {

      output.appendText("Problem! " + oob);

    }

    

    System.out.println("Create Test.start() done!");

  }

}