/*

 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

// Nashorn port of ColorfulCircles.java JavaFX animation example at

// https://docs.oracle.com/javafx/2/get_started/ColorfulCircles.java.html

// ColorfulCircles.java is under the following license terms:

/*

* Copyright (c) 2011, 2012 Oracle and/or its affiliates.

* All rights reserved. Use is subject to license terms.

*

* This file is available and licensed under the following license:

*

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

*

* - Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* - Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in

* the documentation and/or other materials provided with the distribution.

* - Neither the name of Oracle nor the names of its

* contributors may be used to endorse or promote products derived

* from this software without specific prior written permission.

*

* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

// Usage: jjs -fx colorfulcircles.fx

// Porting note: No imports - just load these fx scripts!

load("fx:controls.js");

load("fx:graphics.js");

// Porting note: whatever is inside

// public void start(Stage primaryStage)

// goes into "start" function

function start(primaryStage) {

    // Porting note: Replace types with 'var'. "Group root" becomes "var root".

    // and so on..

    var root = new Group();

    var scene = new Scene(root, 800, 600, Color.BLACK);

    primaryStage.setScene(scene);

    var circles = new Group();

    // Porting note: for (int i = 0....) becomes for (var i = 0...)

    for (var i = 0; i < 30; i++) {

        var circle = new Circle(150, Color.web("white", 0.05));

        circle.setStrokeType(StrokeType.OUTSIDE);

        circle.setStroke(Color.web("white", 0.16));

        circle.setStrokeWidth(4);

        circles.getChildren().add(circle);

    }

    // Porting note: There is no "f" suffix for float literals in JS.

    // LinearGradient(0f, 1f, 1f, 0f,..) becomes just

    // LinearGradient(0, 1, 1, 0,..)

    // Porting note: LinearGradient's constructor is a varargs method

    // No need to create Stop[] just pass more Stop objects at the end!

    var colors = new Rectangle(scene.getWidth(), scene.getHeight(),

       new LinearGradient(0, 1, 1, 0, true, CycleMethod.NO_CYCLE,

       new Stop(0, Color.web("#f8bd55")),

       new Stop(0.14, Color.web("#c0fe56")),

       new Stop(0.28, Color.web("#5dfbc1")),

       new Stop(0.43, Color.web("#64c2f8")),

       new Stop(0.57, Color.web("#be4af7")),

       new Stop(0.71, Color.web("#ed5fc2")),

       new Stop(0.85, Color.web("#ef504c")),

       new Stop(1, Color.web("#f2660f"))));

    colors.widthProperty().bind(scene.widthProperty());

    colors.heightProperty().bind(scene.heightProperty());

    var blendModeGroup =

       new Group(new Group(new Rectangle(scene.getWidth(), scene.getHeight(),

         Color.BLACK), circles), colors);

    colors.setBlendMode(BlendMode.OVERLAY);

    root.getChildren().add(blendModeGroup);

    circles.setEffect(new BoxBlur(10, 10, 3));

    // Porting note: Java code uses static import of

    // java.lang.Math.random. Just use JS Math.random here

    var random = Math.random;

    var timeline = new Timeline();

    // Porting note: Java enhanced for loop

    // for (Node circle : circles.getChildren())

    // becomes

    // for each (var circle: circles.getChildren())

    for each (var circle in circles.getChildren()) {

        timeline.getKeyFrames().addAll(

            new KeyFrame(Duration.ZERO, // set start position at 0

            new KeyValue(circle.translateXProperty(), random() * 800),

            new KeyValue(circle.translateYProperty(), random() * 600)),

            new KeyFrame(new Duration(40000), // set end position at 40s

            new KeyValue(circle.translateXProperty(), random() * 800),

            new KeyValue(circle.translateYProperty(), random() * 600)));

    }

    // play 40s of animation

    timeline.play();

    primaryStage.show();

}