// Java 3Dテスト用アプレット
// Shape3DTest.java
//   Copyright (c) 1999 ENDO Yasuyuki
//                      mailto:yasuyuki@javaopen.org
//                      http://www.javaopen.org/j3dbook/index.html

import java.applet.*;
import java.awt.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.SimpleUniverse;

public class Shape3DTest extends Applet {
  public Shape3DTest() {
    GraphicsConfiguration config =
      SimpleUniverse.getPreferredConfiguration();
    Canvas3D canvas = new Canvas3D(config);
    this.setLayout(new BorderLayout());
    this.add(canvas, BorderLayout.CENTER);

    SimpleUniverse universe = new SimpleUniverse(canvas);
    universe.getViewingPlatform().setNominalViewingTransform();

    BranchGroup scene = createSceneGraph();

    universe.addBranchGraph(scene);
  }

  private BranchGroup createSceneGraph() {
    BranchGroup root = new BranchGroup();

    Point3d[] vertices = new Point3d[8];
    
    vertices[0] = new Point3d(-0.5, 0.5, 0.5);
    vertices[1] = new Point3d(-0.5, -0.5, 0.5);
    vertices[2] = new Point3d(0.5, -0.5, 0.5);
    vertices[3] = new Point3d(0.5, 0.5, 0.5);
    vertices[4] = new Point3d(-0.5, 0.5, -0.5);
    vertices[5] = new Point3d(-0.5, -0.5, -0.5);
    vertices[6] = new Point3d(0.5, -0.5, -0.5);
    vertices[7] = new Point3d(0.5, 0.5, -0.5);
    
    int[] indices = { 0, 1, 2, 3,
                      4, 5, 1, 0,
                      4, 0, 3, 7,
                      3, 2, 6, 7,
                      7, 6, 5, 4,
                      1, 5, 6, 2 };

    Color3f[] colors = { new Color3f(1.0f, 0.0f, 0.0f),   // red
                         new Color3f(0.0f, 1.0f, 0.0f),   // green
                         new Color3f(0.0f, 0.0f, 1.0f),   // blue
                         new Color3f(0.0f, 1.0f, 1.0f),   // cyan
                         new Color3f(1.0f, 0.0f, 1.0f),   // magenta
                         new Color3f(1.0f, 1.0f, 0.0f) }; // yellow

    int[] colorIndices = { 0, 0, 0, 0,   // red
                           1, 1, 1, 1,   // green
                           2, 2, 2, 2,   // blue
                           3, 3, 3, 3,   // cyan
                           4, 4, 4, 4,   // magenta
                           5, 5, 5, 5 }; // yellow
    
    IndexedQuadArray geometry =
      new IndexedQuadArray( vertices.length,
                            GeometryArray.COORDINATES | GeometryArray.COLOR_3,
                            indices.length);
    geometry.setCoordinates(0, vertices);
    geometry.setCoordinateIndices(0, indices);
    geometry.setColors(0, colors);
    geometry.setColorIndices(0, colorIndices);
    
    Shape3D shape = new Shape3D(geometry);
    
    Transform3D t3d = new Transform3D();
    t3d.setRotation(
      new AxisAngle4d(0.57, 0.57, -0.57, Math.PI / 4.0));
    TransformGroup trans = new TransformGroup(t3d);
    
    trans.addChild(shape);
    
    root.addChild(trans);

    return root;
  }

  public static void main(String[] args) {
    Shape3DTest applet = new Shape3DTest();
    MainFrame frame = new MainFrame(applet, 500, 500);
  }
}