import java.util.LinkedList;
import java.util.List;
import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Camera;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.Scene;
import javafx.scene.input.MouseEvent;
import javafx.scene.input.PickResult;
import javafx.scene.light.PointLight;
import javafx.scene.material.PhongMaterial;
import javafx.scene.paint.Color;
import javafx.scene.shape3d.Box;
import javafx.scene.shape3d.Cylinder;
import javafx.scene.shape3d.Shape3D;
import javafx.scene.shape3d.Sphere;
import javafx.stage.Stage;

/*
 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 */
/**
 *
 * @author Andrew Glushchenko
 */
public class PickingTestApp extends Application {

    static {
        System.setProperty("prism.dirtyopts", "false");

    }
    private static int HEIGHT = 500;
    private static int WIDTH = 500;
    private Scene scene;
    private Group root;
    private PointLight pl;
    protected Group grp;
    private Shape3D meshView[];
    private PhongMaterial material;
    private static double SCALE = 100;

    @Override
    public void start(Stage stage) throws Exception {
        pl = new PointLight(Color.RED);
        pl.setTranslateZ(-800);

        root = new Group(pl, buildGroup());
        scene = new Scene(root, HEIGHT, WIDTH);
        addCamera(scene);

        scene.addEventHandler(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
            @Override
            public void handle(MouseEvent t) {
                pick(t);
            }
        });
        stage.setScene(scene);
        stage.show();
    }

    private Camera addCamera(Scene scene) {
        PerspectiveCamera pc = new PerspectiveCamera(false);
        scene.setCamera(pc);
        pc.setTranslateX(-200);
        pc.setTranslateY(-200);
        pc.setTranslateZ(-1000);
        return pc;
    }

    private void pick(MouseEvent t) {
        PickResult result = t.getPickResult();
        System.out.println("Point:(x="+t.getSceneX()+";y="+t.getSceneY()+")");
        if (result != null) {
            System.out.println(result.getIntersectedDistance());
            System.out.println(result.getIntersectedFace());
            System.out.println(result.getIntersectedNode());
            System.out.println(result.getIntersectedPoint());
            System.out.println(result.getIntersectedTexCoord());
        } else {
            System.out.println("null");
        }

    }

    protected Group buildGroup() {
        material = new PhongMaterial();
        material.setDiffuseColor(Color.LIGHTGRAY);
        material.setSpecularColor(Color.rgb(30, 30, 30));

        meshView = new Shape3D[]{
            new Box(),
            new Sphere(),
            new Cylinder()
        };

        for (int i = 0; i < 3; i++) {
            meshView[i].setMaterial(material);
            meshView[i].setTranslateZ(20);
            meshView[i].setScaleX(SCALE);
            meshView[i].setScaleY(SCALE);
            meshView[i].setScaleZ(SCALE);

        }
        meshView[0].setTranslateX(3 * SCALE);
        meshView[2].setTranslateX(-3 * SCALE);



        grp = new Group(meshView);

        return grp;
    }

    public static void main(String[] args) {
        launch(args);
    }
}