package com.company;

import javafx.application.Application;
import javafx.animation.Animation;
import javafx.animation.Transition;
import javafx.geometry.Rectangle2D;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.stage.Stage;
import javafx.util.Duration;
import javafx.scene.image.Image;
import javax.swing.text.Element;
import javax.swing.text.html.ImageView;
import java.util.Collection;

public class Main extends Application {
    private final Image IMAGE = new Image(getClass().getResourceAsStream("1.png"));
    private static final int COUNT = 3;
    private static final int COLLUMS = 3;
    private static final int OFFSETX = 0;
    private static final int OFFSETY = 32;
    private static final int WEIGHT = 32;
    private static final int HEIGTH = 32;


    @Override
    public void start(Stage primaryStage) throws Exception {
        final ImageView imageView = new ImageView((Element) IMAGE);
        imageView.setViewport(new Rectangle2D(OFFSETX,OFFSETY,WEIGHT,HEIGTH));
        final Animation animation = new SpriteAnimation(
                imageView,
                Duration.millis(3000),
                COUNT,COLLUMS,
                OFFSETX,OFFSETY,
                WEIGHT,HEIGTH
        );
        animation.setCycleCount(Animation.INDEFINITE);
        animation.play();
        primaryStage.setScene(new Scene(new Group((Collection<Node>) imageView),300,300));
        primaryStage.show();

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

    private class SpriteAnimation extends Transition {
        private final ImageView imageView;
        private final int count;
        private final int colums;
        private final int offsetX;
        private final int offsetY;
        private final int width;
        private final int height;

        public SpriteAnimation(
                ImageView imageView,
                Duration duration,
                int count, int colums,
                int offsetX, int offsetY,
                int width, int height) {
            this.imageView = imageView;
            this.count = count;
            this.colums = colums;
            this.offsetX = offsetX;
            this.offsetY = offsetY;
            this.width = width;
            this.height = height;
            setCycleDuration(duration);
        }


         protected void interpolate(double k){
                    final int index = Math.min((int) Math.floor(k * count), count - 1);
                    final int x = (index % colums) * width + offsetX;
                    final int y = (index / colums) * height + offsetY;
                    imageView.setViewport(new Rectangle2D(x, y, width, height));
         }
    }
}