Animated Sprites with Java Swing

Question

Can someone tell me how can I slowdown the sprites appearance to create a more smooth animation? When I run the code it appears the last (27th) sprite in the JPanel. The ani

Answer 1

I have changed some sprite sheet coords because I could find a similar image, but it should give you the idea:

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Timer;
import java.util.TimerTask;

import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Sprites extends JFrame {

    public static void main(String[] args) {
        JFrame frm1 = new JFrame();
        frm1.setSize(400,400);
        frm1.setLocationRelativeTo(null);
        frm1.setResizable(false);
        frm1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Painel1 pn1 = new Painel1();
        frm1.getContentPane().add(pn1);
        frm1.setVisible(true);
    }

}

class Painel1 extends JPanel {

    BufferedImage img;
    Timer timer;
    int i;
    Image subSprite;
    int[][] spriteSheetCoords = { { 8, 10, 119, 129 }, { 138, 10, 118, 130 }, { 267, 10, 118, 132 },
            { 402, 11, 113, 132 }, { 538, 12, 106, 134 }, { 671, 13, 103, 133 }, { 671, 12, 102, 132 },
            { 23, 161, 100, 134 }, { 157, 162, 96, 134 }, { 287, 159, 95, 135 }, { 418, 158, 95, 133 },
            { 545, 159, 99, 133 }, { 673, 159, 102, 134 }, { 550, 158, 108, 130 }, { 9, 309, 116, 126 },
            { 137, 309, 118, 127 }, { 274, 310, 110, 128 }, { 412, 311, 102, 129 }, { 541, 312, 103, 130 },
            { 671, 312, 104, 131 }, { 600, 312, 98, 132 }, { 29, 463, 94, 135 }, { 155, 462, 98, 135 },
            { 279, 461, 104, 135 }, { 409, 461, 106, 135 }, { 536, 461, 109, 135 }, { 662, 461, 112, 133 } };

    public Painel1() {
        setBackground(Color.yellow);
        try
        {
            img = ImageIO.read(new File("images/ffffd.png"));
            timer = new Timer();
            timer.scheduleAtFixedRate(new TimerTask() {
                @Override
                public void run() {
                    subSprite = img.getSubimage(spriteSheetCoords[i][0], spriteSheetCoords[i][1], spriteSheetCoords[i][2],
                            spriteSheetCoords[i][3]);
                    i++;
                    repaint();
                    revalidate();
                }
            }, 500, 500);
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }

    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        g.drawImage(subSprite, 140, 120, null);
    }
}