吃豆子打开/关闭动画口 [英] Pacman open/close mouth animation
问题描述
我想用最简单的方法,使豆子打开/关闭的嘴动画。
这是我最近code:?问题是,什么也没发生。
I want to make the pacman open/close mouth animation using the easiest method. Here is my recent code: The problem is, nothing is happening?
package ordner;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class PacMan implements ActionListener {
private JFrame frame;
private DrawPanel panel;
private void initGui() {
frame = new JFrame("Pacman");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
panel = new DrawPanel();
frame.add(panel);
panel.setBackground(Color.BLACK);
frame.setSize(300, 300);
frame.setVisible(true);
}
public static void main(String[] args) {
PacMan pm = new PacMan();
pm.initGui();
}
@Override
public void actionPerformed(ActionEvent e) {
panel.repaint();
}
}
和这里是我的平局面板:
and here is my draw panel:
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class DrawPanel extends JPanel {
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(Color.yellow);
g.fillArc(70,50,150,150,30,300);
int i = 0;
while ( i <= 60) {
g.fillArc(70,50,150,150,30-i,300+i+i);
try {
Thread.sleep(25);
}
catch (Exception e) {
Thread.currentThread().interrupt();
}
i++;
}
}
}
while循环不影响什么,可能是什么原因呢?
The while loop doesn't affect anything, what could be the reason for that?
推荐答案
这样的事情可能会为吃豆图像工作。它采用了基于Java 2D 图形
实例重新present的形式,和的AffineTransform
来产生不同取向。
Something like this might work for PacMan images. It uses a Java 2D based Shape
instance to represent the form, and an AffineTransform
to produce the different orientations.
结果
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
import java.io.*;
import javax.imageio.ImageIO;
class PacManShape {
private double size;
private double rotation;
final int maxSize = 4;
static File home = new File(System.getProperty("user.home"));
static File images = new File(home, "images");
PacManShape(int size, double rotation) {
this.size = size;
this.rotation = rotation;
}
public Area getPacManShape(double jaws) {
Area area = new Area(new Ellipse2D.Double(0d, 0d, size, size));
double x1 = size / 2 + (2d * size * Math.cos(jaws / 2d));
double y1 = size / 2 + (2d * size * Math.sin(jaws / 2d));
double x2 = x1;
double y2 = size / 2 - (2d * size * Math.sin(jaws / 2d));
Polygon mouth = new Polygon();
mouth.addPoint((int) (size / 2), (int) (size / 2));
mouth.addPoint((int) x1, (int) y1);
mouth.addPoint((int) x2, (int) y2);
mouth.addPoint((int) (size / 2), (int) (size / 2));
area.subtract(new Area(mouth));
return area;
}
public BufferedImage getPacManImage(double angle, Color color) {
BufferedImage bi = new BufferedImage(
(int) size, (int) size, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = bi.createGraphics();
g2.setColor(color);
g2.fillRect(0, 0, (int) size, (int) size);
AffineTransform rotate = AffineTransform.getRotateInstance(
rotation, size / 2, size / 2);
g2.setTransform(rotate);
Area pacMan = getPacManShape(angle);
g2.setRenderingHint(
RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2.setColor(Color.YELLOW);
float[] dist = {.15f, .9f};
Color[] colors = {Color.YELLOW, Color.ORANGE};
Point2D center = new Point2D.Double(size / 2, size / 2);
RadialGradientPaint radial = new RadialGradientPaint(
center, (float) ((size / 2) - 2f), dist, colors);
g2.setPaint(radial);
g2.fill(pacMan);
GradientPaint gradient = new GradientPaint(
0, 0, new Color(255, 255, 225, 220),
(int) (size / 3), 0, new Color(255, 255, 255, 0));
g2.setPaint(gradient);
g2.fill(pacMan);
g2.dispose();
return bi;
}
public void savePacManImage(int q, int num) throws IOException {
double angle = Math.PI*2 / 3d * ((double) num / (double) maxSize);
BufferedImage bi = getPacManImage(angle, Color.WHITE);
images.mkdirs();
File img = new File(images, "PacMan-" + q + "x" + num + ".gif");
ImageIO.write(bi, "gif", img);
}
public static void main(String[] args) {
try {
for (int ii = 0; ii < 4; ii++) {
PacManShape pms = new PacManShape(100, (double) ii * Math.PI / 2d);
for (int jj = 0; jj <= pms.maxSize; jj++) {
pms.savePacManImage(ii, jj);
}
}
Desktop.getDesktop().open(images);
} catch (IOException ex) {
ex.printStackTrace();
}
Runnable r = new Runnable() {
@Override
public void run() {
JPanel gui = new JPanel(new BorderLayout());
gui.add(new PacManComponent());
JOptionPane.showMessageDialog(null, gui);
}
};
// Swing GUIs should be created and updated on the EDT
// http://docs.oracle.com/javase/tutorial/uiswing/concurrency/initial.html
SwingUtilities.invokeLater(r);
}
}
class PacManComponent extends JPanel {
double angle = 0d;
int preferredSize = 100;
double diff = Math.PI / 8;
boolean chomp = true;
Timer timer;
PacManComponent() {
ActionListener listener = new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
repaint();
}
};
timer = new Timer(180, listener);
timer.start();
}
@Override
public Dimension getPreferredSize() {
return new Dimension(preferredSize, preferredSize);
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g.create();
//double size = (getWidth() < getHeight() ? getWidth() : getHeight());
if (angle > 2 * Math.PI / 3) {
chomp = true;
} else if (angle < 0.01) {
chomp = false;
}
if (chomp) {
angle -= diff;
} else {
angle += diff;
}
PacManShape pms = new PacManShape(100, 0d);
Image image = pms.getPacManImage(angle, new Color(0, 0, 0, 0));
g2.drawImage(image, 0, 0, this);
g2.dispose();
}
}
如果你想改变&安培;在呈现运行时图像,请尝试启动这一系列PNG格式的图像,使用部分透明柔化边缘。
If you wanted to transform & render images at run-time, try starting with this series of PNG format images that uses partial transparency to soften the edges.
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