//::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
/** @author  John Miller
 *  @version 2.0
 *  @date    Thu Aug  5 14:50:12 EDT 2021
 *  @see     LICENSE (MIT style license file).
 *
 *  @title   Translation of Jenkov Tutorial from Java to Scala - JavaFX 3D Example
 *
 *  @see tutorials.jenkov.com/javafx/3d.html
 *  @see alvinalexander.com/source-code/scala-javafx-application-launch-scene-stylesheets/
 *  @see openjfx.io/javadoc/16/
 */

// FIX - fails to launch Application - could be a build.sbt problem

package scalation
package scala3d

import javafx.application.{Application, ConditionalFeature, Platform}
import javafx.scene.{Group, PerspectiveCamera, Scene}
import javafx.scene.shape.{Box, CullFace}
import javafx.scene.transform.Rotate
import javafx.stage.Stage

//::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
/** The `Gfx3DExample` companion obejct is use to invoke the `Gfx3DExample` class.
 *  > runMain scalation.scala3d.Gfx3DExample
 */
object Gfx3DExample:

    def main (args: Array [String]): Unit =
        Application.launch (classOf [Gfx3DExample], args :_*)
    end main

end Gfx3DExample


//::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
/** The `Gfx3DExample` class displays a 3D `Box`.
 */
class Gfx3DExample extends Application:

    def start (primaryStage: Stage): Unit =

        val is3DSupported = Platform.isSupported (ConditionalFeature.SCENE3D)
        if ! is3DSupported then
           println ("Sorry, 3D is not supported in JavaFX on this platform.")
           return
        end if

        val box = new Box (100, 100, 100)
        box.setCullFace (CullFace.NONE)
        box.setTranslateX (250)
        box.setTranslateY (100)
        box.setTranslateZ (400)

        val fixedEyeAtCameraZero = false
        val camera = new PerspectiveCamera (fixedEyeAtCameraZero)
        camera.setTranslateX (150)
        camera.setTranslateY (-100)
        camera.setTranslateZ (250)

        val root = new Group (box)
        root.setRotationAxis (Rotate.X_AXIS)
        root.setRotate (30)

        val scene = new Scene (root, 500, 300, true)
        scene.setCamera (camera)
        primaryStage.setScene (scene)
        primaryStage.setTitle ("3D Example")

        primaryStage.show ()
    end start

end Gfx3DExample