目录
一、效果
二、教程
三、代码
首先我们先来看一下效果：（以下运行成功均动态效果）
我们点击左右两边的图标，Tom猫便可做出相应的动作，例如，点击“牛奶”这个图标，Tom猫的反应：
当然，点击Tom猫的小肚子和头也会出现做出其他的小动作。
1、使用IDEA搭建一个项目，项目名称：TomCat（可根据自己的喜好）
具体搭建过程可看博文用IDEA构建一个简单的Java程序范例，这里就不详细说了。
2、下载相应的动作图片Animations文件和按钮Buttons文件，并且放在 项目 --> target --> classes --> Tomcat 下
下载地址：
Animations 提取码：Anim
Buttons 提取码：Butt
3、TomCat.class
（1）导入包
import java.awt.Component; import javax.swing.JFrame;（2）主函数
在这里我的panel大小设置的是350*600，是根据我的图片的大小设定的。
public static void main(String[] args) { JFrame frame = new JFrame("Tom猫"); TomCatPanel panel = new TomCatPanel(); frame.add(panel); Thread t = new Thread(panel); t.start(); panel.addMouseListener(panel); frame.setDefaultCloseOperation(3); frame.setSize(350, 600); frame.setLocationRelativeTo((Component)null); frame.setVisible(true); }4、TomCatPanel.class
（1）导入包
import java.awt.Graphics; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.image.BufferedImage; import java.awt.image.ImageObserver; import java.io.IOException; import javax.imageio.ImageIO; import javax.swing.JPanel;（2）类的继承，接口的实现
JPanel类：面板组件，非顶层容器MouseListener：鼠标监听接口 public class TomCatPanel extends JPanel implements Runnable, MouseListener{}（3）类型的定义
back：BufferedImage，为Tom猫的背景eat, cymbal, drink, fart, pie, scratch：BufferedImage，为界面的6个不同的按钮。分别表示吃、敲锣、喝、放屁、扔、抓6个动作path：图片路径count：intindex：intflag：boolean BufferedImage back; BufferedImage eat; BufferedImage cymbal; BufferedImage drink; BufferedImage fart; BufferedImage pie; BufferedImage scratch; String[] paths = new String[100]; int count = 0; int index = 0; boolean flag = false;（4）画布函数TomCatPanel()
在这里定义Tom猫的背景图片
back：Tom猫的背景图片eat：画布上的吃东西的按钮cymbal：画布上敲锣的按钮drink：画布上喝牛奶的按钮fart：画布上放屁的按钮pie：画布上pizza的按钮scratch：画布上抓的按钮 public TomCatPanel() { try { this.back = ImageIO.read(TomCatPanel.class.getResource("Animations/Eat/eat_00.jpg")); this.eat = ImageIO.read(TomCatPanel.class.getResource("Buttons/eat.png")); this.cymbal = ImageIO.read(TomCatPanel.class.getResource("Buttons/cymbal.png")); this.drink = ImageIO.read(TomCatPanel.class.getResource("Buttons/drink.png")); this.fart = ImageIO.read(TomCatPanel.class.getResource("Buttons/fart.png")); this.pie = ImageIO.read(TomCatPanel.class.getResource("Buttons/pie.png")); this.scratch = ImageIO.read(TomCatPanel.class.getResource("Buttons/scratch.png")); } catch (IOException var2) { var2.printStackTrace(); } }（5）画笔函数paint()
画笔名称g背景及按钮的位置，及大小 public void paint(Graphics g) { super.paint(g); g.drawImage(this.back, 0, 0, 350, 600, (ImageObserver)null); g.drawImage(this.eat, 20, 300, 50, 50, (ImageObserver)null); g.drawImage(this.cymbal, 20, 370, 50, 50, (ImageObserver)null); g.drawImage(this.drink, 20, 440, 50, 50, (ImageObserver)null); g.drawImage(this.fart, 265, 300, 50, 50, (ImageObserver)null); g.drawImage(this.pie, 265, 370, 50, 50, (ImageObserver)null); g.drawImage(this.scratch, 265, 440, 50, 50, (ImageObserver)null); }（6）线程函数run()
由于每个动作的图片的张数不同，因为我们每次更新图片时，需要判断图片的更新图片的次数是否大于图片的总数，如果超过，flag = false，停止更新。
public void run() { while(true) { if (this.flag) { ++this.index; if (this.index >= this.count) { this.index = 0; this.flag = false; } try { this.back = ImageIO.read(TomCatPanel.class.getResource(this.paths[this.index])); } catch (IOException var3) { var3.printStackTrace(); } } try { Thread.sleep(50); } catch (InterruptedException var2) { var2.printStackTrace(); } this.repaint(); } }（7）鼠标点击函数mousePressed(MouseEvent e)
mouseX，mouseY：为鼠标的坐标
根据鼠标的坐标，来判断Tom猫的动作。
public void mousePressed(MouseEvent e) { int mouseX = e.getX(); int mouseY = e.getY(); if (mouseX > 20 && mouseX < 70 && mouseY > 300 && mouseY < 350) { this.count = 40; this.updateImage("eat"); this.flag = true; } if (mouseX > 20 && mouseX < 70 && mouseY > 370 && mouseY < 420) { this.count = 13; this.updateImage("cymbal"); this.flag = true; } if (mouseX > 20 && mouseX < 70 && mouseY > 440 && mouseY < 490) { this.count = 81; this.updateImage("drink"); this.flag = true; } if (mouseX > 265 && mouseX < 315 && mouseY > 300 && mouseY < 350) { this.count = 28; this.updateImage("fart"); this.flag = true; } if (mouseX > 265 && mouseX < 315 && mouseY > 370 && mouseY < 420) { this.count = 24; this.updateImage("pie"); this.flag = true; } if (mouseX > 265 && mouseX < 315 && mouseY > 440 && mouseY < 490) { this.count = 56; this.updateImage("scratch"); this.flag = true; } if (mouseX > 100 && mouseX < 250 && mouseY > 100 && mouseY < 250) { this.count = 81; this.updateImage("knockout"); this.flag = true; } if (mouseX > 120 && mouseX < 230 && mouseY > 400 && mouseY < 500) { this.count = 34; this.updateImage("stomach"); this.flag = true; } if (mouseX > 235 && mouseX < 285 && mouseY > 450 && mouseY < 540) { this.count = 26; this.updateImage("angry"); this.flag = true; } if (mouseX > 120 && mouseX < 170 && mouseY > 520 && mouseY < 560) { this.count = 30; this.updateImage("footRight"); this.flag = true; } if (mouseX > 175 && mouseX < 225 && mouseY > 520 && mouseY < 560) { this.count = 30; this.updateImage("footLeft"); this.flag = true; } this.repaint(); }（8）图片更新函数updateImage()
public void updateImage(String str) { for(int i = 0; i < this.count; ++i) { if (i < 10) { this.paths[i] = "Animations/" + str + "/" + str + "_0" + i + ".jpg"; } else { this.paths[i] = "Animations/" + str + "/" + str + "_" + i + ".jpg"; } } }1、TomCat.class
package TomCat; import java.awt.Component; import javax.swing.JFrame; public class TomCat { public static void main(String[] args) { JFrame frame = new JFrame("Tom猫"); TomCatPanel panel = new TomCatPanel(); frame.add(panel); Thread t = new Thread(panel); t.start(); panel.addMouseListener(panel); frame.setDefaultCloseOperation(3); frame.setSize(350, 600); frame.setLocationRelativeTo((Component)null); frame.setVisible(true); } }2、TomCatPanel.class
package TomCat; import java.awt.Graphics; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.image.BufferedImage; import java.awt.image.ImageObserver; import java.io.IOException; import javax.imageio.ImageIO; import javax.swing.JPanel; public class TomCatPanel extends JPanel implements Runnable, MouseListener { BufferedImage back; BufferedImage eat; BufferedImage cymbal; BufferedImage drink; BufferedImage fart; BufferedImage pie; BufferedImage scratch; String[] paths = new String[100]; int count = 0; int index = 0; boolean flag = false; public TomCatPanel() { try { this.back = ImageIO.read(TomCatPanel.class.getResource("Animations/Eat/eat_00.jpg")); this.eat = ImageIO.read(TomCatPanel.class.getResource("Buttons/eat.png")); this.cymbal = ImageIO.read(TomCatPanel.class.getResource("Buttons/cymbal.png")); this.drink = ImageIO.read(TomCatPanel.class.getResource("Buttons/drink.png")); this.fart = ImageIO.read(TomCatPanel.class.getResource("Buttons/fart.png")); this.pie = ImageIO.read(TomCatPanel.class.getResource("Buttons/pie.png")); this.scratch = ImageIO.read(TomCatPanel.class.getResource("Buttons/scratch.png")); } catch (IOException var2) { var2.printStackTrace(); } } public void paint(Graphics g) { super.paint(g); g.drawImage(this.back, 0, 0, 350, 600, (ImageObserver)null); g.drawImage(this.eat, 20, 300, 50, 50, (ImageObserver)null); g.drawImage(this.cymbal, 20, 370, 50, 50, (ImageObserver)null); g.drawImage(this.drink, 20, 440, 50, 50, (ImageObserver)null); g.drawImage(this.fart, 265, 300, 50, 50, (ImageObserver)null); g.drawImage(this.pie, 265, 370, 50, 50, (ImageObserver)null); g.drawImage(this.scratch, 265, 440, 50, 50, (ImageObserver)null); } public void run() { while(true) { if (this.flag) { ++this.index; if (this.index >= this.count) { this.index = 0; this.flag = false; } try { this.back = ImageIO.read(TomCatPanel.class.getResource(this.paths[this.index])); } catch (IOException var3) { var3.printStackTrace(); } } try { Thread.sleep(50); } catch (InterruptedException var2) { var2.printStackTrace(); } this.repaint(); } } public void mouseClicked(MouseEvent e) { } public void mousePressed(MouseEvent e) { int mouseX = e.getX(); int mouseY = e.getY(); if (mouseX > 20 && mouseX < 70 && mouseY > 300 && mouseY < 350) { this.count = 40; this.updateImage("eat"); this.flag = true; } if (mouseX > 20 && mouseX < 70 && mouseY > 370 && mouseY < 420) { this.count = 13; this.updateImage("cymbal"); this.flag = true; } if (mouseX > 20 && mouseX < 70 && mouseY > 440 && mouseY < 490) { this.count = 81; this.updateImage("drink"); this.flag = true; } if (mouseX > 265 && mouseX < 315 && mouseY > 300 && mouseY < 350) { this.count = 28; this.updateImage("fart"); this.flag = true; } if (mouseX > 265 && mouseX < 315 && mouseY > 370 && mouseY < 420) { this.count = 24; this.updateImage("pie"); this.flag = true; } if (mouseX > 265 && mouseX < 315 && mouseY > 440 && mouseY < 490) { this.count = 56; this.updateImage("scratch"); this.flag = true; } if (mouseX > 100 && mouseX < 250 && mouseY > 100 && mouseY < 250) { this.count = 81; this.updateImage("knockout"); this.flag = true; } if (mouseX > 120 && mouseX < 230 && mouseY > 400 && mouseY < 500) { this.count = 34; this.updateImage("stomach"); this.flag = true; } if (mouseX > 235 && mouseX < 285 && mouseY > 450 && mouseY < 540) { this.count = 26; this.updateImage("angry"); this.flag = true; } if (mouseX > 120 && mouseX < 170 && mouseY > 520 && mouseY < 560) { this.count = 30; this.updateImage("footRight"); this.flag = true; } if (mouseX > 175 && mouseX < 225 && mouseY > 520 && mouseY < 560) { this.count = 30; this.updateImage("footLeft"); this.flag = true; } this.repaint(); } public void mouseReleased(MouseEvent e) { } public void mouseEntered(MouseEvent e) { } public void mouseExited(MouseEvent e) { } public void updateImage(String str) { for(int i = 0; i < this.count; ++i) { if (i < 10) { this.paths[i] = "Animations/" + str + "/" + str + "_0" + i + ".jpg"; } else { this.paths[i] = "Animations/" + str + "/" + str + "_" + i + ".jpg"; } } } }
