Java贪吃蛇和图形编辑（极简画板）制作

1.贪吃蛇是在b站上学习的时候码的代码 B站

2.图形编辑是极简化的代码 程序中的代码中有详细的注释

贪吃蛇

package snake; import javax.swing.*; //游戏的主启动类 public class StartGame { public static void main(String arggs[]) { JFrame frame = new JFrame(); frame.setBounds(10,10,900,720); frame.setResizable(false);//设置窗口大小不可变 frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); //正常游戏界面都应该在画上 frame.add(new GamePanel()); frame.setVisible(true); } } package snake; import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.util.Random; //游戏的面板 public class GamePanel extends JPanel implements KeyListener,ActionListener{ //定义蛇的数据结构 int length;//蛇的长度 int snakeX[] = new int[600]; //蛇的X坐标25*25 int snakeY[] = new int[500]; //蛇的X坐标25*25 String direction; //食物的坐标 int foodX; int foodY; Random random = new Random(); //成绩 int score ; //游戏当前的状态：开始，停止 boolean isStart = false; //默认是不开始的 //游戏失败状态 boolean isFail = false; //定时器 Timer timer = new Timer(100, this); //100ms执行一次 //构造器 public GamePanel() { init(); //获得焦点和键盘事件 this.setFocusable(true);//获得焦点事件 this.addKeyListener(this);//获得键盘监听事件 timer.start();//游戏开始，定时器启动 } //初始化方法 public void init() { length = 3; snakeX[0] = 100; snakeY[0] = 100; //脑袋坐标 snakeX[1] = 75; snakeY[1] = 100; //第一个身体坐标 snakeX[2] = 50; snakeY[2] = 100; //第二个身体坐标 direction = "right"; //把食物随机分布在界面上 foodX = 25 + 25*random.nextInt(34); foodY = 75 + 25*random.nextInt(24); score = 0; } //绘制面板,我们游戏中的所有东西，都是由这个画笔来画 @Override protected void paintComponent(Graphics g) { super.paintComponent(g);//清屏 //绘制静态面板 this.setBackground(Color.white); Data.header.paintIcon(this, g, 25, 11); //头部广告栏画上去 g.fillRect(25, 75, 850, 600); //默认的游戏界面 //画积分 g.setColor(Color.black); g.setFont(new Font("微软雅黑",Font.BOLD,18)); g.drawString("长度："+length, 750, 35); g.drawString("分数："+score, 750, 50); //画食物 Data.food.paintIcon(this, g, foodX, foodY); //把小蛇画上去 if(direction.equals("right")) { Data.right.paintIcon(this, g, snakeX[0], snakeY[0]); //蛇头的初始化向右 }else if(direction.equals("left")) { Data.left.paintIcon(this, g, snakeX[0], snakeY[0]); }else if(direction.equals("up")) { Data.up.paintIcon(this, g, snakeX[0], snakeY[0]); }else if(direction.equals("down")) { Data.down.paintIcon(this, g, snakeX[0], snakeY[0]); } for (int i = 1; i < length; i++) { Data.body.paintIcon(this, g, snakeX[i], snakeY[i]); //第一个身体坐标 } //游戏状态 if(isStart == false) { g.setColor(Color.white); g.setFont(new Font("微软雅黑",Font.BOLD,40)); g.drawString("按下空格开始游戏", 300, 300); } if(isFail) { g.setColor(Color.red); g.setFont(new Font("微软雅黑",Font.BOLD,40)); g.drawString("按下空格重新开始", 300, 300); } } //键盘监听事件 @Override public void keyPressed(KeyEvent e) { int keyCode = e.getKeyCode(); if(keyCode == KeyEvent.VK_SPACE) { if(isFail) { //重新开始 isFail = false; init(); }else { isStart = !isStart;//取反 } repaint(); } //小蛇移动 if(keyCode == KeyEvent.VK_UP) { direction = "up"; }else if(keyCode == KeyEvent.VK_DOWN) { direction = "down"; }else if(keyCode == KeyEvent.VK_LEFT) { direction = "left"; }else if(keyCode == KeyEvent.VK_RIGHT) { direction = "right"; } } //事件监听----需要通过固定时间来刷新（1s = 10次） @Override public void actionPerformed(ActionEvent e) { if(isStart && isFail == false) {//如果游戏时开始状态，则让小蛇动起来 //吃食物 if(snakeX[0] == foodX && snakeY[0] == foodY) { length++; score = score + 10; //再次随机生成食物 foodX = 25 + 25*random.nextInt(34); foodY = 75 + 25*random.nextInt(24); } //移动 for(int i = length-1; i>0;i--) {//后一节移到前一节的位置 snakeX[i] = snakeX[i-1]; snakeY[i] = snakeY[i-1]; } //走向 if(direction.equals("right")) { snakeX[0] = snakeX[0] + 25; if(snakeX[0]>850){snakeX[0] = 25;}//边界判断 }else if(direction.equals("left")) { snakeX[0] = snakeX[0] - 25; if(snakeX[0]<25){snakeX[0] = 850;}//边界判断 }else if(direction.equals("up")) { snakeY[0] = snakeY[0] - 25; if(snakeY[0]<75){snakeY[0] = 650;}//边界判断 }else if(direction.equals("down")) { snakeY[0] = snakeY[0] + 25; if(snakeY[0]>650){snakeY[0] = 75;}//边界判断 } //失败判断，撞到自己就算失败 for(int i = 1; i<length;i++) { if(snakeX[0] == snakeX[i] && snakeY[0] == snakeY[i]) { isFail = true; } } repaint();//重画页面 } timer.start();//定时器开始 } public void keyTyped(KeyEvent e) {} public void keyReleased(KeyEvent e) {} } package snake; import java.net.URL; import javax.swing.*; public class Data { //相对路径 tp.jpg //绝对路径 public static URL headerUrl = Data.class.getResource("statics/header.png"); public static ImageIcon header = new ImageIcon(headerUrl); public static URL upUrl = Data.class.getResource("statics/up.png"); public static URL downUrl = Data.class.getResource("statics/down.png"); public static URL leftUrl = Data.class.getResource("statics/left.png"); public static URL rightUrl = Data.class.getResource("statics/right.png"); public static ImageIcon up = new ImageIcon(upUrl); public static ImageIcon down = new ImageIcon(downUrl); public static ImageIcon left = new ImageIcon(leftUrl); public static ImageIcon right = new ImageIcon(rightUrl); public static URL bodyUrl = Data.class.getResource("statics/body.png"); public static ImageIcon body = new ImageIcon(bodyUrl); public static URL foodUrl = Data.class.getResource("statics/food.png"); public static ImageIcon food = new ImageIcon(foodUrl); }

图形编辑（画板）

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class NewPaint extends JPanel{ private NewShape[] shapeArray = new NewShape[10000]; public static void main(String[] args) { NewPaint p = new NewPaint(); } JFrame frame = new JFrame(); int len = 0; //实例化一个ButtonListener对象，实现了多种接口 PaintListener paintListener = new PaintListener(); public NewPaint() { //实现一个窗体 frame.setTitle("图形编辑软件"); frame.setLocation(450, 150); frame.setSize(700, 600); this.setPreferredSize(new Dimension(600, 500)); //设置布局为流式布局 frame.setLayout(new FlowLayout()); String[] command = { "直线", "画笔", "矩形","圆", "多边形", "文本","图片","清除"}; for (int i = 0; i < command.length; i++) { JButton button = new JButton(command[i]); button.addActionListener(paintListener); frame.add(button); } Color[] color = { Color.BLACK, Color.BLUE, Color.YELLOW, Color.RED, Color.GREEN }; for (int i = color.length - 1; i >= 0; i--) { JButton button = new JButton(); button.setBackground(color[i]); button.setPreferredSize(new Dimension(20, 20)); button.addActionListener(paintListener); frame.add(button); } //将JPanel对象添加进入frame窗体对象中，让他生效 frame.add(this); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); Graphics graphics1 = this.getGraphics(); this.addMouseListener(paintListener); //添加鼠标监听器，用于画图 this.addMouseMotionListener(paintListener); //添加鼠标模式监听器，用于绘画曲线 paintListener.setGraphics(graphics1); //设置另外一个类的画笔 paintListener.setJPanel(this); //设置另外一个类的JPanel容器 paintListener.setShapeArray(shapeArray); //设置另外一个类的数组 } public void paint(Graphics graphics) { super.paint(graphics); len = paintListener.get_len(); //获取数组的长度 for(int i=0;i<len;i++) { if(shapeArray[i]!=null) { shapeArray[i].repaint(graphics); } else { break; } } } } import java.awt.event.*; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import java.awt.*; public class PaintListener extends JFrame implements ActionListener,MouseListener,MouseMotionListener { private int index=0; private NewShape shapeArray[]; private JPanel panel; private Graphics graphics; private String order=""; int x0=0,y0=0,x1=0,y1=0,x2=0,y2=0,x3=0,x4=0,y3=0,y4=0; int start_x=0,start_y=0; public void setJPanel(JPanel panel) { this.panel=panel; } public void setGraphics(Graphics graphics) { this.graphics = graphics; } public void setShapeArray(NewShape shapeArray[]) { this.shapeArray = shapeArray; } public int get_len() { return index; } public void actionPerformed(ActionEvent e) { x1 = 200; y1 = 200; if (e.getActionCommand()=="") { JButton button = (JButton)e.getSource(); graphics.setColor(button.getBackground()); } else { order = e.getActionCommand(); if("清除".equals(order)) { index = 0; panel.repaint(); x4 = 0; y4 = 0; } } } //曲线 public void mouseDragged(MouseEvent e) { if(order.equals("画笔")) { x1 = x0; y1 = y0; x0 = e.getX(); y0 = e.getY(); graphics.drawLine(x1,y1,x0,y0); shapeArray[index++] = new NewShape(x1,y1,x0,y0,order); } } //点击鼠标 public void mouseClicked(MouseEvent e) { if(order.equals("多边形")) { if(x4==0&&y4==0){ x4 = e.getX(); y4 = e.getY(); start_x = x4; start_y = y4; } else { x3 = x4; y3 = y4; x4 = e.getX(); y4 = e.getY(); graphics.drawLine(x3, y3, x4, y4); shapeArray[index++] = new NewShape(x3,y3,x4,y4,order); } if(e.getClickCount()==2){ x4 =0; y4=0; graphics.drawLine(start_x, start_y, e.getX(), e.getY()); shapeArray[index++] = new NewShape(start_x,start_y,e.getX(),e.getY(),order); } } if(order.equals("文本")) { x1 = e.getX(); y1 = e.getY(); String text = "文本框"; Font font = new Font("行楷", Font.BOLD+Font.ITALIC, 26); graphics.setFont(font); graphics.drawString(text, x1, y1); shapeArray[index++] = new NewShape(x1, y1, text); } if(order.equals("图片")) { x1 = e.getX(); y1 = e.getY(); ImageIcon icon = new ImageIcon( "G:\\eclipse\\workspace\\internetWork\\Work\\grapEdit\\picture1.jpg"); Image img = icon.getImage(); graphics.drawImage(img, x1, y1, null); shapeArray[index++] = new NewShape(x1, y1, img); } } // 按下 public void mousePressed(MouseEvent e) { if(order.equals("画笔")){ x0 = e.getX(); y0 = e.getY(); } x1 = e.getX(); y1 = e.getY(); } // 松开 public void mouseReleased(MouseEvent e) { x2 = e.getX(); y2 = e.getY(); if("直线".equals(order)){ graphics.drawLine(x1, y1, x2, y2); shapeArray[index++] = new NewShape(x1,y1,x2,y2,order); } else if("矩形".equals(order)) { graphics.drawRect(Math.min(x1, x2), Math.min(y1, y2), Math.abs(x1-x2), Math.abs(y1-y2)); shapeArray[index++] = new NewShape(x1,y1,x2,y2,order); } else if("圆".equals(order)) { graphics.drawOval(Math.min(x1, x2), Math.min(y1, y2), Math.abs(x1-x2), Math.abs(y1-y2)); shapeArray[index++] = new NewShape(x1,y1,x2,y2,order); } } public void mouseEntered(MouseEvent e) {} public void mouseExited(MouseEvent e) {} public void mouseMoved(MouseEvent e) {} } import java.awt.Graphics; import java.awt.Image； import javax.swing.ImageIcon; import javax.swing.JPanel; public class NewShape{ //Shape类有name和两点坐标的属性 private int x1,x2,y1,y2; private String name; private Image image; public NewShape(int x1,int y1,int x2,int y2,String name){ this.x1 = x1; this.x2 = x2; this.y1 = y1; this.y2 = y2; this.name = name; } public NewShape(int x1,int y1, String name){ this.x1 = x1; this.y1 = y1; this.name = name; } public NewShape(int x1,int y1, Image image){ this.x1 = x1; this.y1 = y1; this.image = image; } public void repaint(Graphics g) { switch(name) { case "直线": g.drawLine(x1, y1, x2, y2); break; case "矩形": g.drawRect(Math.min(x1, x2), Math.min(y1 ,y2), Math.abs(x1-x2), Math.abs(y1-y2)); break; case "圆形": g.drawOval(Math.min(x1, x2), Math.min(y1 ,y2), Math.abs(x1-x2), Math.abs(y1-y2)); break; case "曲线": g.drawLine(x1, y1, x2, y2); break; case "多边形": g.drawLine(x1, y1, x2, y2); break; case "文本": g.drawString(name, x1, y1); break; case "图片": g.drawImage(image, x1, y1, null); break; } } }