java se实现简单贪吃蛇
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做的过程没有删掉 这是从一个字符版升级为图形版的
Main
import java.io.IOException;public class Main { static Thread thread; public static void main(String[] args) throws InterruptedException, IOException { start(); /* Scanner scanner = new Scanner(System.in); while(scanner.hasNext()){ String str = null; if("w".equals(str)){ game.moveUp(); }else if("a".equals(str)){ game.moveLeft(); }else if("s".equals(str)){ game.moveDown(); }else if("d".equals(str)){ game.moveRight(); } }*/ } public static void start(){ SnakeGame game = new SnakeGame(); thread = new Thread(game); //初始化地图 game.initBackground(); //初始化食物 //不知道为什么必须在view里面进行函数才不会空指针异常?????? static 之后 就可以了 为何之前不用 //这个事情需要最后的时候搞清楚 game.initThing(); //game.picture(); game.view(); game.readKey(); //game.startThread(); //System.out.println("主函数输出"+game.direction); thread.start(); }}Screen
import javax.swing.*;import java.awt.*;/** * Created by LiJing on 2017/7/9. */public class Screen { public static void init(JFrame jFrame,int width,int hight){ jFrame.setVisible(true); Toolkit toolkit = Toolkit.getDefaultToolkit(); Dimension dimension = toolkit.getScreenSize(); jFrame.setBounds((int)dimension.getWidth()/2-width/2, (int)dimension.getHeight()/2-hight/2, width, hight); jFrame.setVisible(true); jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); }}SnakeGame
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.io.IOException;import java.util.LinkedList;import java.util.Random;public class SnakeGame extends JPanel implements Runnable{ static LinkedList<Point> snake; static Point head; public static boolean isGameOver = false; static SnakeGame snakeGame =new SnakeGame(); public static final int SNAKE_UP = 1; public static final int SNAKE_DOWN = -1; public static final int SNAKE_LEFT = 2; public static final int SNAKE_RIGHT = -2; /* //是否可以移动 static boolean moveFlag = true;*/ static JFrame frame = new JFrame("贪吃蛇"); //监听器里的line static int line; //蛇的方向 因为画的是蛇头朝右的 所以-2 int direction = -2; //食物对象 static Point food; static Point stone; //高 public static final int HIGH =25; //宽 public static final int WEIGHT=45; //格子边长 public static final int LONG = 20; //生成地图 static boolean[][] map =new boolean[HIGH][WEIGHT]; /*//食物可以生成的旗标 static boolean flag = true;*/ //初始化地图 public void initBackground(){ for (int k = 0; k < map.length; k++) { for (int j = 0; j < map[k].length; j++) { map[k][j] = false; } } for(int i=0;i<map.length;i++){ if(i==0||i==map.length-1) { for (int j = 0; j < map[i].length; j++) { map[i][j] = true; } }else{ for (int j = 0; j < map[i].length; j++) { if(j==0||j==map[i].length-1){ map[i][j] = true; } } } } } //图形化界面 @Override public void paint(Graphics g) { //画地图 for (int i = 0; i < map.length; i++) { for (int j = 0; j < map[i].length; j++) { if(map[i][j]){ g.setColor(Color.GRAY); }else{ g.setColor(Color.WHITE); } g.fill3DRect(j* LONG, i* LONG, LONG, LONG, true); } } //画蛇 head = snake.getFirst(); g.setColor(Color.RED); g.fill3DRect(head.y* LONG, head.x* LONG, LONG, LONG, true);// System.out.println("蛇头"+head.y); //蛇身 蛇集合中 除了蛇头都是蛇身 for(int i = 1; i<snake.size()-1;i++){ Point body = snake.get(i); g.setColor(Color.YELLOW); g.fill3DRect(body.y* LONG, body.x* LONG, LONG, LONG, true);// System.out.println(body.y); } Point tail = snake.getLast(); g.setColor(Color.black); g.fill3DRect(tail.y* LONG, tail.x* LONG, LONG, LONG, true); /*//隐形蛇尾 Point body = snake.get(snake.size()-1); g.setColor(Color.WHITE); g.fill3DRect(body.y* LONG, body.x* LONG, LONG, LONG, true);*/ //画食物 g.setColor(Color.GREEN); g.fill3DRect(food.y*LONG, food.x*LONG, LONG, LONG, true); /*//gameover的标志 if(isGameOver) { g.setColor(Color.RED); //设置画笔 的字体 g.setFont(new Font("宋体", Font.BOLD, 30)); g.drawString("GAME OVER 你的分数是: " + (snake.size()-3), (WEIGHT * LONG -50)/2,(HIGH * LONG)/2); snakeGame.repaint(); }*/ } //判断是否gameover public void isGameOver(){ for(int i = 2; i<snake.size();i++){ Point body = snake.get(i);// System.out.println("body.x = "+body.x+" head.x ="+head.x+" body.y = "+body.y+" head.y ="+head.y); if(body.x==head.x&&body.y==head.y){ isGameOver = true ; } } if(map[head.x][head.y]){ isGameOver = true ; } if(isGameOver==true){ final JFrame jFrame = new JFrame("啪! 你死了"); JPanel jPanel = new JPanel(); jFrame.setContentPane(jPanel); JButton jButton = new JButton(" 你的分数是 "+ (snake.size()-3)); JButton jButton1 = new JButton("充值1分钱可以继续玩"); JButton jButton2 = new JButton("重新开始"); jButton1.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { try { Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + "http://blog.csdn.net/\n"); } catch (IOException e1) { e1.printStackTrace(); } } }); jButton2.addMouseListener(new MouseAdapter(){ @Override public void mouseClicked(MouseEvent e) { direction = -2; isGameOver=false; //初始化地图 initBackground(); //初始化食物 //不知道为什么必须在view里面进行函数才不会空指针异常?????? static 之后 就可以了 为何之前不用 //这个事情需要最后的时候搞清楚 initThing(); initSnake(); snakeGame.repaint(); Main main1 = new Main(); main1.start(); jFrame.dispose(); } }); jFrame.add(jButton); jFrame.add(jButton1); jFrame.add(jButton2); Screen.init(jFrame,300,100); } /*//重置游戏 if(isGameOver==true){ isGameOver=false; //初始化地图 initBackground(); //初始化食物 //不知道为什么必须在view里面进行函数才不会空指针异常?????? static 之后 就可以了 为何之前不用 //这个事情需要最后的时候搞清楚 initThing(); initSnake(); snakeGame.repaint(); }*/ } //初始化蛇 public void initSnake(){ snake = new LinkedList<Point>(); int x = HIGH/2; int y = WEIGHT /2;// snake.addFirst(new Point(x,y-2));//隐形蛇尾 为了避免game over判断错误 snake.addFirst(new Point(x,y-1)); snake.addFirst(new Point(x,y)); snake.addFirst(new Point(x,y+1)); } //蛇改变方向 public void changeDirection(int direction) throws InterruptedException { if(this.direction+direction!=0){ this.direction=direction;// move(direction); } } //蛇移动的函数 public void move(int direction) throws InterruptedException { switch (direction) { case SNAKE_UP: { head = snake.getFirst(); // snake.addFirst(new Point(head.x,head.y)); while(isGameOver); snake.addFirst(new Point(head.x - 1, head.y)); if (!(head.x == food.x && head.y == food.y)) { head = snake.getFirst();//每次移动完了都更新一下蛇头的坐标 snake.removeLast(); snakeGame.repaint(); isGameOver(); } else { head = snake.getFirst();//每次移动完了都更新一下蛇头的坐标 initThing(); snakeGame.repaint(); isGameOver(); } break; } case SNAKE_DOWN: { head = snake.getFirst(); // snake.addFirst(new Point(head.x,head.y)); while(isGameOver); snake.addFirst(new Point(head.x + 1, head.y)); if (!(head.x == food.x && head.y == food.y)) { head = snake.getFirst();//每次移动完了都更新一下蛇头的坐标 snake.removeLast(); snakeGame.repaint(); isGameOver(); } else { head = snake.getFirst();//每次移动完了都更新一下蛇头的坐标 initThing(); snakeGame.repaint(); isGameOver(); } break; } case SNAKE_LEFT: { head = snake.getFirst(); // snake.addFirst(new Point(head.x,head.y)); while(isGameOver); snake.addFirst(new Point(head.x, head.y - 1)); if (!(head.x == food.x && head.y == food.y)) { head = snake.getFirst();//每次移动完了都更新一下蛇头的坐标 snake.removeLast(); snakeGame.repaint(); isGameOver(); } else { head = snake.getFirst();//每次移动完了都更新一下蛇头的坐标 initThing(); snakeGame.repaint(); isGameOver(); } break; } case SNAKE_RIGHT: { head = snake.getFirst(); // snake.addFirst(new Point(head.x,head.y)); while(isGameOver); snake.addFirst(new Point(head.x, head.y + 1)); if (!(head.x == food.x && head.y == food.y)) { head = snake.getFirst();//每次移动完了都更新一下蛇头的坐标 snake.removeLast(); snakeGame.repaint(); isGameOver(); } else { head = snake.getFirst();//每次移动完了都更新一下蛇头的坐标 initThing(); snakeGame.repaint(); isGameOver(); } break; } } } //初始化食物 public void initThing(){ Random random = new Random(); Random random1 = new Random(); while(true){ int x = random.nextInt(HIGH); int x1 = random1.nextInt(HIGH); int y = random.nextInt(WEIGHT); int y1 = random1.nextInt(WEIGHT); if(map[x1][y1] != true){ map[x1][y1] = true; /*System.out.println(x1); System.out.println(y1);*/ } if(map[x][y]!=true){ food = new Point(x,y); break; } } } //图形 public void view(){ snakeGame.initBackground(); snakeGame.initSnake(); frame.add(snakeGame); } //识别按键 public void readKey(){ //给窗口添加事件监听 frame.addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { line=e.getKeyCode(); switch(line){ case KeyEvent.VK_UP: try { //System.out.println("尝试...."); changeDirection(SNAKE_UP); //System.out.println("发送...."); } catch (InterruptedException e1) { e1.printStackTrace(); } break; case KeyEvent.VK_LEFT: try { changeDirection(SNAKE_LEFT); } catch (InterruptedException e1) { e1.printStackTrace(); } break; case KeyEvent.VK_DOWN: try { changeDirection(SNAKE_DOWN); } catch (InterruptedException e1) { e1.printStackTrace(); } break; case KeyEvent.VK_RIGHT: try { changeDirection(SNAKE_RIGHT); } catch (InterruptedException e1) { e1.printStackTrace(); } break; } } }); Screen.init(frame, WEIGHT * LONG + 20, HIGH * LONG + 35); snakeGame.repaint(); } @Override public void run() { while(true){ try { move(direction); Thread.sleep(200 - snake.size()*5); } catch (InterruptedException e) { e.printStackTrace(); } } }} /*public void reFresh() throws InterruptedException { //初始化地图 initBackground(); //显示蛇 showSnake(); //显示食物 showFood(); //打印地图 print(); Thread.sleep(50); }*/ /* public static void main(String[] args) throws InterruptedException, IOException { SnakeGame game = new SnakeGame(); //初始化地图 game.initBackground(); //初始化蛇 game.initSnake(); //初始化食物 game.initThing(); game.picture(); *//* Scanner scanner = new Scanner(System.in); while(scanner.hasNext()){ String str = null; if("w".equals(str)){ game.moveUp(); }else if("a".equals(str)){ game.moveLeft(); }else if("s".equals(str)){ game.moveDown(); }else if("d".equals(str)){ game.moveRight(); } }*//* }*/ /*//移动 注释掉的地方,加上后出现错误:是转弯不增加 ,直行增加. 我认为是蛇的长度都要增加的,但是并没有 public void moveUp() throws InterruptedException { Point head = snake.getFirst(); // snake.addFirst(new Point(head.x,head.y)); snake.addFirst(new Point(head.x - 1, head.y)); if (!(head.x == food.x && head.y == food.y)) { snake.removeLast(); reFresh(); } else { initThing(); reFresh(); } } public void moveDown() throws InterruptedException { Point head = snake.getFirst();// snake.addFirst(new Point(head.x,head.y)); snake.addFirst(new Point(head.x+1,head.y)); if(!(head.x==food.x&&head.y==food.y)){ snake.removeLast(); reFresh(); }else { initThing(); reFresh(); } } public void moveLeft() throws InterruptedException { Point head = snake.getFirst();// snake.addFirst(new Point(head.x,head.y)); snake.addFirst(new Point(head.x,head.y-1)); if(!(head.x==food.x&&head.y==food.y)){ snake.removeLast(); reFresh(); }else { initThing(); reFresh(); } } public void moveRight() throws InterruptedException { Point head = snake.getFirst();// snake.addFirst(new Point(head.x,head.y)); snake.addFirst(new Point(head.x,head.y+1)); if(!(head.x==food.x&&head.y==food.y)){ snake.removeLast(); reFresh(); }else { initThing(); reFresh(); } }*///图形化方向盘及其控制 /* public void picture(){ JFrame jFrame = new JFrame("方向盘"); JButton jButton = new JButton("点击后用小键盘控制"); jFrame.add(jButton); jButton.addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { line=e.getKeyCode(); switch(line){ case KeyEvent.VK_UP: try { changeDirection(SNAKE_UP); } catch (InterruptedException e1) { e1.printStackTrace(); } break; case KeyEvent.VK_LEFT: try { changeDirection(SNAKE_LEFT); } catch (InterruptedException e1) { e1.printStackTrace(); } break; case KeyEvent.VK_DOWN: try { changeDirection(SNAKE_DOWN); } catch (InterruptedException e1) { e1.printStackTrace(); } break; case KeyEvent.VK_RIGHT: try { changeDirection(SNAKE_RIGHT); } catch (InterruptedException e1) { e1.printStackTrace(); } break; } } }); Screen.init(jFrame,250,250); }*/
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