/*--------------*/
/* Ja75.java    */
/*--------------*/
import java.applet.Applet;
import java.awt.*;                            //BorderLayout,GraphicsConfiguration,event
import javax.media.j3d.*;                     //Java3d
import com.sun.j3d.utils.applet.MainFrame;    //MainFrame
import com.sun.j3d.utils.universe.*;          //SimpleUniverse
import com.sun.j3d.utils.geometry.*;          //Primitive
import com.sun.j3d.utils.behaviors.mouse.*;   //Mouse
import com.sun.j3d.utils.image.TextureLoader; //TextureLoader@
import javax.vecmath.*;                       //Point3f,Color3f

public class Ja75 extends Applet {

    private SimpleUniverse simpleU;
    private BoundingSphere bounds = new BoundingSphere(new Point3d(), 10.0);

    public void init() {

        //アプレットの中央にCanvas3Dを追加
        setLayout(new BorderLayout());
        Canvas3D canvas = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
        add(canvas, BorderLayout.CENTER);

        //シーングラフの生成
        simpleU = new SimpleUniverse(canvas);
        simpleU.getViewingPlatform().setNominalViewingTransform();

        //シーングラフの作成
        simpleU.addBranchGraph(createSceneGraph());
    }

    public BranchGroup createSceneGraph() {

        BranchGroup branchG0 = new BranchGroup();

        //背景色の設定（設定が無い場合は黒）
        Background background = new Background(new Color3f(0.3f, 0.3f, 0.3f));
        background.setApplicationBounds(bounds);
        branchG0.addChild(background);

        //マウス操作用のノード
        TransformGroup transG0 = new TransformGroup();
        branchG0.addChild(transG0);

        //Appearanceを作成
        Appearance ap = new Appearance();
        ColoringAttributes ca = new ColoringAttributes();
        ca.setColor(new Color3f( 0.0f, 0.0f, 1.0f));        //青
        ap.setColoringAttributes(ca);

        //テクスチャ
        java.net.URL texFile = null;
        try{
            texFile = new java.net.URL(getCodeBase().toString() +
                       "diamond128.gif");
        }catch(java.net.MalformedURLException ex){
            System.out.println(ex.getMessage());
        }

        //テクスチャ座標の自動生成
        TexCoordGeneration texGen =
            new TexCoordGeneration(TexCoordGeneration.OBJECT_LINEAR,
//            new TexCoordGeneration(TexCoordGeneration.EYE_LINEAR,
//            new TexCoordGeneration(TexCoordGeneration.SPHERE_MAP,
                TexCoordGeneration.TEXTURE_COORDINATE_2,
                new Vector4f(2.0f, 0.0f, 0.0f, 0.0f),
                new Vector4f(0.0f, 2.0f, 0.0f, 0.0f));
        ap.setTexCoordGeneration(texGen);

        TextureLoader loader = new TextureLoader(texFile, this);
        Texture texture = loader.getTexture();
        ap.setTexture(texture);

        //円錐の生成
        Cone cone = new Cone(0.5f, 1.0f, ap);
        transG0.addChild(cone);

        //マウスによる物体移動
        transG0.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
        transG0.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
        MouseRotate mouseRot = new MouseRotate(transG0);
        mouseRot.setSchedulingBounds(bounds);
        transG0.addChild(mouseRot);

        branchG0.compile();

        return branchG0;
    }

    public void destroy(){

        simpleU.cleanup();
    }

    public static void main(String[] args){    //Application

        MainFrame frame = new MainFrame(new Ja75(), 512, 512);
    }
}