fourbyfour.java

java 3d编程的一些例子源代码

      // Create a universe with the Java3D universe utility.
      universe = new SimpleUniverse(canvas3D);
      universe.addBranchGraph(scene3D);
  
      // Use parallel projection.
      View view = universe.getViewer().getView();
      view.setProjectionPolicy(View.PARALLEL_PROJECTION);

      // Set the universe Transform3D object.
      TransformGroup tg = 
         universe.getViewingPlatform().getViewPlatformTransform();
      Transform3D transform = new Transform3D();
      transform.set(65.f, new Vector3f(0.0f, 0.0f, 400.0f));
      tg.setTransform(transform);

      // Create the canvas container.
      c_container = new Panel();
      c_container.setSize(720, 360);
      c_container.setLocation(0, 0);
      c_container.setVisible(true);
      c_container.setLayout(null);
      add(c_container);

      // Add the 2D and 3D canvases to the container.
      c_container.add(canvas2D);
      c_container.add(canvas3D);

      // Turn off the layout manager, widgets will be sized 
      // and positioned explicitly.
      setLayout(null);

      // Create the button container.
      b_container = new Panel();
      b_container.setSize(720, 70);
      b_container.setLocation(0, 360);
      b_container.setVisible(true);
      b_container.setLayout(null);

      // Create the buttons.
      instruct_button = new Button("Instructions");
      instruct_button.setSize(135, 25);
      instruct_button.setLocation(10, 10);
      instruct_button.setVisible(true);
      instruct_button.addActionListener(this);

      new_button = new Button("New Game");
      new_button.setSize(135, 25);
      new_button.setLocation(150, 10);
      new_button.setVisible(true);
      new_button.addActionListener(this);

      undo_button = new Button("Undo Move");
      undo_button.setSize(135, 25);
      undo_button.setLocation(290, 10);
      undo_button.setVisible(true);
      undo_button.addActionListener(this);

      skill_button = new Button("Skill Level");
      skill_button.setSize(135, 25);
      skill_button.setLocation(430, 10);
      skill_button.setVisible(true);
      skill_button.addActionListener(this);

      high_button = new Button("High Scores");
      high_button.setSize(135, 25);
      high_button.setLocation(570, 10);
      high_button.setVisible(true);
      high_button.addActionListener(this);

      b_container.add(new_button);
      b_container.add(undo_button);
      b_container.add(skill_button);
      b_container.add(high_button);
      b_container.add(instruct_button);

      // Add the button container to the applet.
      add(b_container);

      // Create the "Skill Level" dialog box.
      skill_panel = new Panel();
      skill_panel.setSize(400, 300);
      skill_panel.setLocation(200, 20);
      skill_panel.setLayout(null);

      skill_label = new Label("Pick your skill level:");
      skill_label.setSize(200, 25);
      skill_label.setLocation(25, 20);
      skill_label.setVisible(true);
      skill_panel.add(skill_label);

      group = new CheckboxGroup();
      Checkbox skill_1 = new Checkbox("Babe in the Woods        ", group, false);
      Checkbox skill_2 = new Checkbox("Walk and Chew Gum        ", group, false);
      Checkbox skill_3 = new Checkbox("Jeopardy Contestant      ", group, false);
      Checkbox skill_4 = new Checkbox("Rocket Scientist         ", group, false);
      Checkbox skill_5 = new Checkbox("Be afraid, be very afraid", group, true);
      skill_1.setSize(170, 25);
      skill_1.setLocation(80, 60);
      skill_1.setVisible(true);
      skill_2.setSize(170, 25);
      skill_2.setLocation(80, 100);
      skill_2.setVisible(true);
      skill_3.setSize(170, 25);
      skill_3.setLocation(80, 140);
      skill_3.setVisible(true);
      skill_4.setSize(170, 25);
      skill_4.setLocation(80, 180);
      skill_4.setVisible(true);
      skill_5.setSize(170, 25);
      skill_5.setLocation(80, 220);
      skill_5.setVisible(true);
      skill_return_button = new Button("Return");
      skill_return_button.setSize(120, 25);
      skill_return_button.setLocation(300, 370);
      skill_return_button.setVisible(false);
      skill_return_button.addActionListener(this);
      skill_panel.add(skill_1);
      skill_panel.add(skill_2);
      skill_panel.add(skill_3);
      skill_panel.add(skill_4);
      skill_panel.add(skill_5);
      skill_panel.setVisible(false);
      add(skill_return_button);
      add(skill_panel);

      // Create the "Instructions" panel.
      instruct_return_button = new Button("Return");
      instruct_return_button.setLocation(300, 370);
      instruct_return_button.setSize(120, 25);
      instruct_return_button.setVisible(false);
      instruct_return_button.addActionListener(this);
      instruct_text = 
         new TextArea(textString, 100, 200, TextArea.SCROLLBARS_VERTICAL_ONLY);
      instruct_text.setSize(715, 350);
      instruct_text.setLocation(0, 0);
      instruct_text.setVisible(false);
      add(instruct_text);

      add(instruct_return_button);

      high_panel = new Panel();
      high_panel.setSize(715, 350);
      high_panel.setLocation(0, 0);
      high_panel.setVisible(false);
      high_panel.setLayout(null);

      high_label = new Label("High Scores");
      high_label.setLocation(330, 5);
      high_label.setSize(200, 30);
      high_label.setVisible(true);
      high_panel.add(high_label);

      high_places = new Label[20];
      high_names  = new Label[20];
      high_scores = new Label[20];
      for (int i=0; i<20; i++) {
         high_places[i] = new Label(Integer.toString(i+1));
         high_places[i].setSize(20, 30);
         high_places[i].setVisible(true);
         high_names[i] = new Label(names[i]);
         high_names[i].setSize(150, 30);
         high_names[i].setVisible(true);
         high_scores[i] = new Label(Integer.toString(scores[i]));
         high_scores[i].setSize(150, 30);
         high_scores[i].setVisible(true);
         if (i<10) {
            high_places[i].setLocation(70, i*30+40);
            high_names[i].setLocation(100, i*30+40);
            high_scores[i].setLocation(260, i*30+40);
         }
         else {
            high_places[i].setLocation(425, (i-10)*30+40);
            high_names[i].setLocation(455, (i-10)*30+40);
            high_scores[i].setLocation(615, (i-10)*30+40);
         }
         high_panel.add(high_places[i]);
         high_panel.add(high_names[i]);
         high_panel.add(high_scores[i]);
      }
      high_return_button = new Button("Return");
      high_return_button.setSize(120, 25);
      high_return_button.setLocation(300, 370);
      high_return_button.setVisible(false);
      high_return_button.addActionListener(this);
      add(high_return_button);
      add(high_panel);

      // Create the "Winner" dialog box
      winner_panel = new Panel();
      winner_panel.setLayout(null);
      winner_panel.setSize(600, 500);
      winner_panel.setLocation(0, 0);
      winner_return_button = new Button("Return");
      winner_return_button.setSize(120, 25);
      winner_return_button.setLocation(300, 360);
      winner_return_button.addActionListener(this);
      winner_panel.add(winner_return_button);
      winner_label = new Label("");
      winner_label.setSize(200, 30);
      winner_label.setLocation(270, 110);
      winner_score_label = new Label("");
      winner_score_label.setSize(200, 30);
      winner_top_label = new Label("You have a score in the top 20.");
      winner_top_label.setSize(200, 25);
      winner_top_label.setLocation(260, 185);
      winner_top_label.setVisible(false); winner_name_label = new Label("Enter your name here:");
      winner_name_label.setSize(150, 25);
      winner_name_label.setLocation(260, 210);
      winner_name_label.setVisible(false);
      winner_name = new TextField("");
      winner_name.setSize(200, 30);
      winner_name.setLocation(260, 240);
      winner_name.setVisible(false);
      winner_panel.add(winner_label);
      winner_panel.add(winner_score_label);
      winner_panel.add(winner_top_label);
      winner_panel.add(winner_name_label);
      winner_panel.add(winner_name);
      winner_panel.setVisible(false);
      add(winner_panel);
   }

    public void destroy() {
	universe.cleanup();
    }

   /**
    *  Create the scenegraph for the 3D view.
    */
   public BranchGroup createScene3D() {

      // Define colors
      Color3f white = new Color3f(1.0f, 1.0f, 1.0f);
      Color3f black = new Color3f(0.0f, 0.0f, 0.0f);
      Color3f red   = new Color3f(0.80f, 0.20f, 0.2f);
      Color3f ambient = new Color3f(0.25f, 0.25f, 0.25f);
      Color3f diffuse = new Color3f(0.7f, 0.7f, 0.7f);
      Color3f specular = new Color3f(0.9f, 0.9f, 0.9f);
      Color3f ambientRed = new Color3f(0.2f, 0.05f, 0.0f);
      Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f);

      // Create the branch group
      BranchGroup branchGroup = new BranchGroup();

      // Create the bounding leaf node
      BoundingSphere bounds =
         new BoundingSphere(new Point3d(0.0,0.0,0.0), 1000.0);
      BoundingLeaf boundingLeaf = new BoundingLeaf(bounds);
      branchGroup.addChild(boundingLeaf);

      // Create the background
      Background bg = new Background(bgColor);
      bg.setApplicationBounds(bounds);
      branchGroup.addChild(bg);

      // Create the ambient light
      AmbientLight ambLight = new AmbientLight(white);
      ambLight.setInfluencingBounds(bounds);
      branchGroup.addChild(ambLight);

      // Create the directional light
      Vector3f dir = new Vector3f(-1.0f, -1.0f, -1.0f);
      DirectionalLight dirLight = new DirectionalLight(white, dir);
      dirLight.setInfluencingBounds(bounds);
      branchGroup.addChild(dirLight);

      // Create the pole appearance
      Material poleMaterial =
         new Material(ambient, black, diffuse, specular, 110.f);
      poleMaterial.setLightingEnable(true);
      Appearance poleAppearance = new Appearance();
      poleAppearance.setMaterial(poleMaterial);

      // Create the transform group node
      TransformGroup transformGroup = new TransformGroup();
      transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
      transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
      branchGroup.addChild(transformGroup);

      // Create the poles
      Poles poles = new Poles(poleAppearance);
      transformGroup.addChild(poles.getChild());

      // Add the position markers to the transform group
      transformGroup.addChild(positions.getChild());