/*--------------*/
/* Ja73.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 Ja73 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);
        PolygonAttributes pa = new PolygonAttributes();
        pa.setCullFace(PolygonAttributes.CULL_NONE);        //裏面も表示する
        ap.setPolygonAttributes(pa);

        //テクスチャ
        java.net.URL texFile = null;
        try{
            texFile = new java.net.URL(getCodeBase().toString() +
                       "java3d.jpg");
        }catch(java.net.MalformedURLException ex){
            System.out.println(ex.getMessage());
        }
        TextureLoader loader = new TextureLoader(texFile, this);
        Texture texture = loader.getTexture();
//        texture.setBoundaryModeS(texture.CLAMP);            //WRAP or CLAMP
//        texture.setBoundaryModeT(texture.CLAMP);            //WRAP or CLAMP
        ap.setTexture(texture);

        //四角形ポリゴンの頂点座標・テクスチャ座標設定
        Point3f[] vertex = new Point3f[4];
        vertex[0] = new Point3f(  0.5f,  0.5f, 0.0f);
        vertex[1] = new Point3f( -0.5f,  0.5f, 0.0f);
        vertex[2] = new Point3f( -0.5f, -0.5f, 0.0f);
        vertex[3] = new Point3f(  0.5f, -0.5f, 0.0f);
        TexCoord2f[] texCoord = new TexCoord2f[4];
        texCoord[0] = new TexCoord2f(3.0f, 3.0f);
        texCoord[1] = new TexCoord2f(0.0f, 3.0f);
        texCoord[2] = new TexCoord2f(0.0f, 0.0f);
        texCoord[3] = new TexCoord2f(3.0f, 0.0f);
        //四角形ポリゴンの生成
        QuadArray quadA
            = new QuadArray(vertex.length,
                GeometryArray.COORDINATES | GeometryArray.TEXTURE_COORDINATE_2);
        quadA.setCoordinates(0, vertex);
        quadA.setTextureCoordinates(0, 0, texCoord);
        Shape3D quad3D = new Shape3D(quadA, ap);
        transG0.addChild(quad3D);

        //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 Ja73(), 512, 512);
    }
}