贪吃蛇代码 [Java实现贪吃蛇游戏【代码】]

package com.huai;import Java.awt.Color;import java.awt.Graphics;import java.awt.Point;import java.util.HashSet;import java.util.LinkedList;import java.util.Set;import com.huai.listener.SnakeListener;import com.huai.util.Constant;public class Snake { //和蛇的监听器有关 Set snakeListener = new HashSet();   //用链表保存蛇的身体节点 LinkedList body = new LinkedList();   private boolean life = true;   //默认速度为400ms private int speed = 400; private Point lastTail = null; private boolean pause = false;   //定义各个方向 public static final int UP = 1; public static final int DOWN = -1; public static final int LEFT = 2; public static final int RIGHT = -2; int newDirection = RIGHT; int oldDirection = newDirection;   public Snake(){ initial(); }   public void initial(){ //先清空所有的节点 body.removeAll(body);   int x = Constant.WIDTH/2; int y = Constant.HEIGHT/2;   //蛇的默认长度为7 for(int i = 0; i < 7; i++){ body.add(new Point(x--, y)); } }   public void setSpeed(int speed){ this.speed = speed; } public void setLife(boolean life){ this.life = life; } public boolean getLife(){ return this.life; } public boolean getPause(){ return this.pause; } public void setPause(boolean pause){ this.pause = pause; }   public void move(){ //蛇移动的实现所采用的数据结构为：蛇尾删除一个节点，蛇头增加一个节点。   System.out.println("snake move");   if(!(oldDirection + newDirection == 0)){ oldDirection = newDirection; } lastTail = body.removeLast();   int x = body.getFirst().x; int y = body.getFirst().y;   switch(oldDirection){ case UP: y--; break; case DOWN: y++; break; case LEFT: x--; break; case RIGHT: x++; break; } Point point = new Point(x, y); body.addFirst(point); }   //当吃到一个食物的时候，把删掉的蛇尾节点增加回来 public void eatFood(){ System.out.println("snake eat food");   body.addLast(lastTail); }   public boolean isEatItself(){ for(int i = 2; i < body.size(); i++){ if(body.getFirst().equals(body.get(i))){ return true; } } return false; }   public void drawMe(Graphics g){ System.out.println("draw snake");   //循环打印蛇的各个身体节点 for(Point p:body){ if(p.equals(body.getFirst())){ //当是蛇头的时候，就设置颜色为橘色 g.setColor(Color.orange); }else{ g.setColor(Color.pink); } g.fill3DRect(p.x * Constant.CELL_SIZE, p.y * Constant.CELL_SIZE, Constant.CELL_SIZE, Constant.CELL_SIZE, true); } }   public void changeDirection(int direction){ System.out.println("snake changeDirection"); this.newDirection = direction; }   //内部类，新增一个游戏线程 public class DriveSnake implements Runnable{ @Override public void run() { while(life){ if(!pause){ //只要让蛇不动就可以暂停游戏 move(); } //监听蛇每次移动的情况 for(SnakeListener listener : snakeListener){ listener.snakeMove(Snake.this); } try { Thread.sleep(speed); } catch (InterruptedException e) { e.printStackTrace(); } } } }   public void startMove(){ new Thread(new DriveSnake()).start(); }   //增加监听器的方法 public void addSnakeListener(SnakeListener listener){ if(listener != null){ snakeListener.add(listener); } }   //返回蛇的第一个身体节点 public Point getHead(){ return body.getFirst(); }   //返回蛇的所有身体节点 public LinkedList getSnakeBody(){ return this.body; }   public boolean died(){ this.life = false; return true; }}package com.huai;import java.awt.Color;import java.awt.Graphics;import java.awt.Point;import com.huai.util.Constant;public class Food { private int x = 0; private int y = 0; //设置食物的默认颜色为红色 private Color color = Color.red;   public void newFood(Point point){ x = point.x; y = point.y; }   //判断是否被吃到 public boolean isAte(Snake snake){   if(snake.getHead().equals(new Point(x, y))){ System.out.println("food isAte"); return true; } return false; }   public void setFoodColor(Color color){ this.color = color; } public Color getFoodColor(){ return this.color; }   public void drawMe(Graphics g){ System.out.println("draw food"); g.setColor(this.getFoodColor()); g.fill3DRect(x * Constant.CELL_SIZE, y * Constant.CELL_SIZE, Constant.CELL_SIZE, Constant.CELL_SIZE, true); }}package com.huai;import java.awt.Color;import java.awt.Graphics;import java.awt.Point;import java.util.LinkedList;import java.util.Random;import com.huai.util.Constant;public class Ground { //在二维数组中，当为1，表示是砖块 private int[][] rock = new int[Constant.WIDTH][Constant.HEIGHT];   private boolean drawLine = true;       public boolean isDrawLine() { return drawLine; } public void setDrawLine(boolean drawLine) { this.drawLine = drawLine; } public Ground(){ for(int x = 0; x < Constant.WIDTH; x++){ for(int y = 0; y < Constant.HEIGHT; y++){ rock[0][y] = 1; rock[x][0] = 1; rock[Constant.WIDTH-1][y] = 1; rock[y][Constant.HEIGHT-1] = 1; } } }   //打印游戏的网格 public void drawGrid(Graphics g){ for(int x = 2; x < Constant.WIDTH; x++){ g.drawLine(x * Constant.CELL_SIZE, 0, x*Constant.CELL_SIZE, Constant.CELL_SIZE * Constant.HEIGHT); } for(int y = 2; y < Constant.HEIGHT; y++){ g.drawLine(0, y * Constant.CELL_SIZE, Constant.WIDTH*Constant.CELL_SIZE, y*Constant.CELL_SIZE); } } public void drawMe(Graphics g){ System.out.println("draw ground");   //打印围墙 g.setColor(Color.pink); for(int x = 0; x < Constant.WIDTH; x++){ for(int y = 0; y < Constant.HEIGHT; y++){ if(rock[x][y] == 1){ g.fill3DRect(x * Constant.WIDTH, y * Constant.HEIGHT, Constant.CELL_SIZE, Constant.CELL_SIZE, true); } } } if(isDrawLine()){ g.setColor(Color.yellow); this.drawGrid(g); } }   //得到一个随机点 public Point getRandomPoint(Snake snake, Thorn thorn){ Random random = new Random(); boolean isUnderSnakebody = false; boolean isUnderThorn = false; int x,y = 0; LinkedList snakeBody = snake.getSnakeBody(); LinkedList thorns = thorn.getThorns(); do{ x = random.nextInt(Constant.WIDTH); y = random.nextInt(Constant.HEIGHT); for(Point p:snakeBody){ if(x == p.x && y == p.y){ isUnderSnakebody = true; } } for(Point point : thorns){ if(x == point.x && y == point.y){ isUnderThorn = true; } } }while(rock[x][y] == 1 && !isUnderSnakebody && !isUnderThorn);       return new Point(x, y); }   public boolean isSnakeHitRock(Snake snake){ System.out.println("snack hit rock");   for(int i = 0; i < Constant.WIDTH; i++){ for(int j = 0; j < Constant.HEIGHT; j++){ if(snake.getHead().x == i && snake.getHead().y == j && rock[i][j] == 1){ return true; } } } return false; }    }package com.huaiimport java.awt.Color;import java.awt.Graphics;import java.awt.Point;import java.util.LinkedList;import com.huai.util.Constant;public class Thorn { int x, y; private LinkedList thorns = new LinkedList();     //返回所有荆棘的链表 public LinkedList getThorns(){ return this.thorns; }   public void newThorn(Point point){ x = point.x; y = point.y;   thorns.add(new Point(x, y)); }   public void drawMe(Graphics g){ System.out.println("draw thorns");     for(Point p: thorns){ int[] xb = {p.x*Constant.CELL_SIZE, (p.x*Constant.CELL_SIZE +Constant.CELL_SIZE/2), (p.x*Constant.CELL_SIZE+Constant.CELL_SIZE), (p.x*Constant.CELL_SIZE+Constant.CELL_SIZE/4*3), (p.x*Constant.CELL_SIZE+Constant.CELL_SIZE), (p.x*Constant.CELL_SIZE+Constant.CELL_SIZE/2), p.x*Constant.CELL_SIZE, (p.x*Constant.CELL_SIZE+Constant.CELL_SIZE/4), p.x*Constant.CELL_SIZE}; int [] yb = {p.y*Constant.CELL_SIZE, (p.y*Constant.CELL_SIZE+Constant.CELL_SIZE/4), p.y*Constant.CELL_SIZE, (p.y*Constant.CELL_SIZE+Constant.CELL_SIZE/2), (p.y*Constant.CELL_SIZE+Constant.CELL_SIZE), (int)(p.y*Constant.CELL_SIZE+Constant.CELL_SIZE*0.75), (p.y*Constant.CELL_SIZE+Constant.CELL_SIZE), (p.y*Constant.CELL_SIZE+Constant.CELL_SIZE/2), p.y*Constant.CELL_SIZE};   g.setColor(Color.darkGray); g.fillPolygon(xb, yb, 8); }   }     public boolean isSnakeHitThorn(Snake snake){   for(Point points : thorns){ if(snake.getHead().equals(points)){ System.out.println("hit thorn"); return true; } } return false; }     }package com.huai.listener;import com.huai.Snake;public interface SnakeListener { public void snakeMove(Snake snake);} package com.huai.util;public class Constant { public static int CELL_SIZE = 20; public static int WIDTH = 20; public static int HEIGHT = 20;}package com.huai.controller; import java.awt.event.KeyAdapter;import java.awt.event.KeyEvent;import com.huai.Food;import com.huai.Ground;import com.huai.Snake;import com.huai.Thorn;import com.huai.listener.SnakeListener;import com.huai.view.GamePanel;public class Controller extends KeyAdapter implements SnakeListener{/** * 整个游戏的控制类，属于MVC设计框架中的Controller * 其中包括控制游戏的监听事件和游戏逻辑 */ Snake snake; Food food; Ground ground; GamePanel gamePanel; Thorn thorn;   public Controller(){}   //利用构造方法初始化对象 public Controller(Snake snake, Food food, Ground ground, GamePanel gamePanel, Thorn thorn) { super(); this.snake = snake; this.food = food; this.ground = ground; this.gamePanel = gamePanel; this.thorn = thorn; } @Override public void keyPressed(KeyEvent e) {   switch(e.getKeyCode()){ case KeyEvent.VK_UP: snake.changeDirection(Snake.UP); snake.setSpeed(150); break; case KeyEvent.VK_DOWN: snake.changeDirection(Snake.DOWN); snake.setSpeed(150); break; case KeyEvent.VK_LEFT: snake.changeDirection(Snake.LEFT); snake.setSpeed(150); break; case KeyEvent.VK_RIGHT: snake.changeDirection(Snake.RIGHT); snake.setSpeed(150); break; case KeyEvent.VK_ENTER: if(!snake.getPause() && snake.getLife()){ //暂停游戏 snake.setPause(true);; }else if(!snake.getLife()){ //重新开始游戏 snake.setLife(true); snake.initial(); snake.changeDirection(Snake.UP); thorn.getThorns().removeAll(thorn.getThorns()); this.startGame(); }else{ snake.setPause(false); } break; case KeyEvent.VK_L: //当按下L按钮时，是否显示游戏网格 if(ground.isDrawLine()){ ground.setDrawLine(false); }else{ ground.setDrawLine(true); } break; } }     @Override public void keyReleased(KeyEvent e) { switch(e.getKeyCode()){ case KeyEvent.VK_UP: snake.setSpeed(400); break; case KeyEvent.VK_DOWN: snake.setSpeed(400); break; case KeyEvent.VK_LEFT: snake.setSpeed(400); break; case KeyEvent.VK_RIGHT: snake.setSpeed(400); break; } }   //这是实现SnakeListener监听器所Override的方法   @Override public void snakeMove(Snake snake) { //显示snake ，food，ground，和thorn gamePanel.display(snake, food, ground, thorn); if(ground.isSnakeHitRock(snake)){ snake.died(); } if(snake.isEatItself()){ snake.died(); } if(food.isAte(snake)){ snake.eatFood(); food.newFood(ground.getRandomPoint(snake, thorn)); thorn.newThorn(ground.getRandomPoint(snake, thorn)); } if(thorn.isSnakeHitThorn(snake)){ snake.died(); } }   public void startGame(){ snake.startMove();//这个将会启动一个新的线程 food.newFood(ground.getRandomPoint(snake, thorn)); thorn.newThorn(ground.getRandomPoint(snake, thorn)); }  }package com.huai.game; import java.awt.BorderLayout;import java.awt.Color;import javax.swing.JFrame;import javax.swing.JLabel;import com.huai.Food;import com.huai.Ground;import com.huai.Snake;import com.huai.Thorn;import com.huai.controller.Controller;import com.huai.util.Constant;import com.huai.view.GamePanel;public class Game { public static void main(String args[]){   Snake snake = new Snake(); Food food = new Food(); GamePanel gamePanel = new GamePanel(); Ground ground = new Ground(); Thorn thorn = new Thorn(); Controller controller = new Controller(snake, food, ground, gamePanel, thorn);   JFrame frame = new JFrame("怀哥的小小蛇儿游戏"); frame.add(gamePanel); frame.setBackground(Color.magenta); frame.setSize(Constant.WIDTH*Constant.CELL_SIZE+6, Constant.HEIGHT*Constant.CELL_SIZE+40); gamePanel.setSize(Constant.WIDTH*Constant.CELL_SIZE, Constant.HEIGHT*Constant.CELL_SIZE); frame.add(gamePanel); frame.setResizable(false);//不可改变窗口大小 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true);   gamePanel.addKeyListener(controller); snake.addSnakeListener(controller); frame.addKeyListener(controller);   JLabel label1 = new JLabel(); label1.setBounds(0, 400, 400, 100); label1.setText("   ENTER=>>PAUSE or AGAIN;  " + " L=>DRAWGRID"); label1.setForeground(Color.BLACK); frame.add(label1, BorderLayout.SOUTH);   controller.startGame(); }}