基于java GUI 实现的大鱼吃小鱼游戏源码

package com.donghu; import javax.swing.*; import java.awt.*; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.util.Random; /* 窗口的创建 1.使用java创建一个窗口。 2.创建一个普通的java类,然后继承JFrame类成为一个窗口类。 */ public class GameWin extends JFrame { /* 游戏状态：0 : 未开始 1 : 游戏中 2 : 通关失败 3 : 通关成功 4 : 暂停 5 : 重新开始 */ //设置游戏默认状态: public static int state = 0; //6-1模块 Image offScreenimg; //6-2 背景类对象的创建 Bg bg = new Bg(); //敌方鱼类 Enamy enamy; //我方鱼类 MyFish myFish = new MyFish(); //boss鱼 Boss boss; double random; boolean isboss = false; //9-3 计数器 int time = 0; //窗口的宽和高 int width = 1440; int height = 900; //3.创建启动方法，来设置窗口属性 public void launch(){ //4.设置窗口是否可见 this.setVisible(true); //5.设置窗口的大小 this.setSize(width,height); //6.设置窗口是否可变 this.setResizable(false); //7.设置窗口位置居中 this.setLocationRelativeTo(null); //8.设置窗口标题 this.setTitle("东湖学院:大鱼吃小鱼"); //9.设置窗口关闭的按钮 this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); //4-1启动页面的点击事件 this.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { super.mouseClicked(e); //4-2通过流程控制语句if判断实现鼠标左键是否点击，并且进入游戏状态 //4-3鼠标左键对应的数值为1,中键对应2，右键对应3 if(e.getButton() == 1 && state == 0) { state = 1; //4-3 repaint方法再次调用paint方法，将窗口绘制出来。 repaint(); } } }); //键盘移动 this.addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { super.keyPressed(e); //wasd //键盘的按压 if(e.getKeyCode()==87){ GameUtils.UP = true; } if(e.getKeyCode()==83){ GameUtils.DOWN = true; } if(e.getKeyCode()==65){ GameUtils.LEFT = true; } if(e.getKeyCode()==68){ GameUtils.RIGHT = true; } } //抬起 @Override public void keyReleased(KeyEvent e) { super.keyReleased(e); //wasd //键盘的抬起 if(e.getKeyCode()==87){ GameUtils.UP = false; } if(e.getKeyCode()==83){ GameUtils.DOWN = false; } if(e.getKeyCode()==65){ GameUtils.LEFT = false; } if(e.getKeyCode()==68){ GameUtils.RIGHT = false; } //空格用来暂停 if(e.getKeyCode() == 32){ switch (state){ case 1: state = 4; GameUtils.drawWord(getGraphics(),"游戏暂停!",Color.black,50,600,500); break; case 4: state = 1; break; } } } }); //5-5 定义背景图片的循环使用，需要重复调用paint方法，所以在launch方法中添加一个while循环 //每隔40毫秒调用一次paint方法 while(true){ repaint(); time++; try { Thread.sleep(40); } catch (InterruptedException e) { e.printStackTrace(); } } } //12.重写paint方法 @Override public void paint(Graphics g) { //绘制的方法, offScreenimg = createImage(width,height); //6-3 懒加载模式初始化对象 Graphics gImage = offScreenimg.getGraphics(); bg.paintSelf(gImage,myFish.level); switch (state){ //14.在paint方法中，用switch语句定义游戏状态 case 0: break; case 1: myFish.paintSelf(gImage); logic(); for(Enamy e:GameUtils.EnamyList){ e.paintSelf(gImage); } if(isboss){ boss.x = boss.x+boss.dir*boss.speed; boss.paintSelf(gImage); if(boss.x < 0){ gImage.setColor(Color.red); gImage.fillRect(boss.x,boss.y,2400,boss.height/30); } } break; case 2: for(Enamy enamy : GameUtils.EnamyList){ enamy.paintSelf(gImage); } if(isboss){ boss.paintSelf(gImage); } break; case 3: myFish.paintSelf(gImage); break; case 4: break; case 5: break; default: break; } //6-4 //13.用画笔g来绘制图片 g.drawImage(offScreenimg,0,0,null); } //9-2批量添加敌方鱼类 void logic(){ //设置关卡难度 if(GameUtils.count < 5){ GameUtils.level = 0; myFish.level = 1; }else if(GameUtils.count < 15){ GameUtils.level = 1; }else if(GameUtils.count < 50){ GameUtils.level = 2; myFish.level = 2; }else if(GameUtils.count < 150){ GameUtils.level = 3; myFish.level = 3; }else if(GameUtils.count < 300){ GameUtils.level = 4; myFish.level = 4; }else { //游戏通关 state = 3; } random = Math.random()*10; switch(GameUtils.level){ case 4: if(time % 100 == 0){ enamy = new Boss(); isboss = true; GameUtils.EnamyList.add(enamy); } case 3: case 2: //每调用60次paint方法，绘制一组条鱼 if (time % 30 == 0) { //敌方鱼出现的概率 if(random <= 5){ enamy = new Enamy3Right(); }else{ enamy = new Enamy3Left(); } GameUtils.EnamyList.add(enamy); } case 1: //每调用60次paint方法，绘制一组条鱼 if (time % 20 == 0) { //敌方鱼出现的概率 if(random <= 5){ enamy = new Enamy2Right(); }else{ enamy = new Enamy2Left(); } GameUtils.EnamyList.add(enamy); } case 0: //每调用60次paint方法，绘制一组条鱼 if (time % 10 == 0) { //敌方鱼出现的概率 if(random <= 5){ enamy = new Enamy1Right(); }else{ enamy = new Enamy1Left();