java贪吃蛇控制台版

package com.sanke; import java.util.LinkedList; public class Snake { 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 dir=UP; LinkedList<SnakeBody> snakebodys=new LinkedList<SnakeBody>(); public void initSnake() { snakebodys.add(new SnakeBody(3, 3)); snakebodys.add(new SnakeBody(3, 4)); snakebodys.add(new SnakeBody(4, 4)); } public Snake() { initSnake(); } public void step(int dir) { if((this.dir+dir)==0){ this.dir=0-dir; } else{ this.dir=dir; } step(); } public void step() { SnakeBody oldhead=snakebodys.getFirst(); int x=oldhead.getX(); int y=oldhead.getY(); switch (dir) { case Snake.DOWN:y=y+1;break;//下 case Snake.UP:y=y-1;break;//上 case Snake.LEFT:x=x-1;break;//左 case Snake.RIGHT:x=x+1;break;//右 } snakebodys.removeLast(); SnakeBody newhead=new SnakeBody(x,y); snakebodys.addFirst(newhead); } public boolean eatFood(SnakeFood f ){ //吃食物 吃到返回真 SnakeBody food=new SnakeBody(f.getX(), f.getY());// if(snakebodys.contains(food)){ snakebodys.addFirst(food); return true; } return false; } public void eatBody(Snake snake){ SnakeBody body=snake.snakebodys.getFirst(); if(snake.snakebodys.contains(snake.snakebodys.removeFirst())){ System.out.println("你吃到了自己的身体了！你的得分是："+(snake.snakebodys.size()-3)); System.exit(1); } snake.snakebodys.addFirst(body); } public void Suicide(Snake snake,int x ,int y){ SnakeBody body=snake.snakebodys.getFirst(); if(body.getX()==0 ||body.getY()==0 || body.getX()==x|| body.getY() == y ){ System.out.println("撞到墙了！你的得分是："+(snake.snakebodys.size()-3)); System.exit(1); } } }