package org.gpf.fishlord;
import java.io.IOException;
import javax.swing.JFrame;import javax.swing.JOptionPane;
/** * 游戏窗体 * @author gaopengfei * @date -4-12 下午7:39:19 */public class FishlordFrame extends JFrame {
  public static final int WIDTH = 800;  public static final int HEIGHT = 480;    private Pool pool;    /**   * 构造器中初始化界面   */  public FishlordFrame() {        this.setTitle("捕鱼达人");    this.setSize(WIDTH, HEIGHT);    this.setLocationRelativeTo(null); // 设置窗口居中，必须放在setSize之后    this.setResizable(false);    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        try {      pool = new Pool();      this.getContentPane().add(pool);      this.setVisible(true);      pool.action();    } catch (IOException e) {      JOptionPane.showMessageDialog(this, "加载资源失败！","应用程序错误",JOptionPane.ERROR_MESSAGE);      e.printStackTrace();    } catch (Exception e) {      JOptionPane.showMessageDialog(this, "初始化游戏失败！","应用程序错误",JOptionPane.ERROR_MESSAGE);      e.printStackTrace();    }      }  }

package org.gpf.fishlord;
import java.awt.image.BufferedImage;import java.io.IOException;import java.util.Random;
import javax.imageio.ImageIO;
class Fish implements Runnable {    private static final int BASE_STEP = 5;        // x和y坐标的步进值的参考标准  int speedOfFish = 20;                // 控制鱼的速度    int x, y, index, width, height, xStep,yStep;
  BufferedImage fishImage;                            // 当前鱼的背景图  BufferedImage[] fishImages = new BufferedImage[10];  // 一条鱼的所有帧的图片  Random r;                      // 产生随机数
  /**   * 在构造器中初始化鱼的属性   * @param fishname   * @throws IOException   */  public Fish(String fishName) throws IOException {    // 加载鱼的图片    BufferedImage tempFishImage;    String resourceName;    for (int i = 0; i < 10; i++) {      if (i!=9) {        resourceName = "/images/" + fishName + "_0" + (i+1) + ".png";      }else {        resourceName = "/images/" + fishName + "_" + (i+1) + ".png";      }      tempFishImage = ImageIO.read(getClass().getResourceAsStream(resourceName));      fishImages[i] = tempFishImage;    }    fishImage = fishImages[index];        width = fishImage.getWidth();             // 根据背景图片的宽高设置鱼所占矩形区域的大小    height = fishImage.getHeight();        goInPool();  }
  /**   * 维持鱼的游动---x和y坐标的变化   */  public void run() {    while (true) {      try {        Thread.sleep(speedOfFish); // 如果不休眠，鱼的速度过快，基本感觉不到鱼的存在。视觉暂留：1/24~1/7秒之间        index++;        fishImage = fishImages[index % fishImages.length]; // 轮流切换帧，生成动画        x = x - xStep;        int temp = r.nextInt(10) + 1;        yStep = r.nextBoolean()?temp:-temp;//        y = y + yStep;                // 判断鱼是否到了边界，因为鱼是从右面进入的，因此只需要判断3个方向        if (x <= 0 || y <= 0 || y >= 480){          goInPool();        }              } catch (InterruptedException e) {        e.printStackTrace();      }    }  }
  /**   *  判断鱼是否在网内   */  public boolean fishInNet(int netX, int netY) {    int dx = netX - x;    int dy = netY - y;    return dx >= 0 && dx <= width && dy >= 0 && dy <= height;  }
  /**   * 鱼从屏幕上游出或者被网罩住的时候消失，再从屏幕的右侧游动到屏幕中,实际上还是那几条鱼   */  void goInPool() {    r = new Random();    x = FishlordFrame.WIDTH - 10;            // 鱼从右侧游动到屏幕左侧    y = r.nextInt(FishlordFrame.HEIGHT - 20 - height);  // 鱼的初始y的坐标是根据窗体的高度随机指定的    xStep = r.nextInt(BASE_STEP) + 1;          // 鱼游动的速度是随机的                          }}

package com.dq.ui;
public class StartGame {    public static void main(String[] args) {        new SnakeFrame();  }}