1 package com.myproj.snake; 2  3 public class Node { 4     private int i,j; 5     public Node(){} 6     public Node(int i, int j) { 7         super(); 8         this.i = i; 9         this.j = j;10     }11 12     public int getI() {13         return i;14     }15 16     public void setI(int i) {17         this.i = i;18     }19 20     public int getJ() {21         return j;22     }23 24     public void setJ(int j) {25         this.j = j;26     }27     @Override28     public int hashCode() {29         final int prime = 31;30         int result = 1;31         result = prime * result + i;32         result = prime * result + j;33         return result;34     }35     @Override36     public boolean equals(Object obj) {37         if (this == obj)38             return true;39         if (obj == null)40             return false;41         if (getClass() != obj.getClass())42             return false;43         Node other = (Node) obj;44         if (i != other.i)45             return false;46         if (j != other.j)47             return false;48         return true;49     }50     51 }

1 package com.myproj.snake; 2  3 import java.util.LinkedList; 4  5 public class Snake { 6     private LinkedList
      
        nodes=new LinkedList
       
        (); 7     public static final int UP=-5; 8     public static final int DOWN=5; 9     public static final int LEFT=-1;10     public static final int RIGHT=1;11     private int dir;//当前方向；12     public Snake(){13         nodes.add(new Node(3,9));14         nodes.add(new Node(4,9));15         nodes.add(new Node(5,9));16         nodes.add(new Node(5,10));17         nodes.add(new Node(5,11));18         nodes.add(new Node(6,11));19         nodes.add(new Node(7,11));20         this.dir=RIGHT;21     }22     public boolean contains(int i,int j){23         return nodes.contains(new Node(i,j));24     }25     public void move(){26         nodes.removeLast();27         Node head=nodes.getFirst();28         int i=head.getI()+dir/5;29         int j=head.getJ()+dir%5;30         nodes.addFirst(new Node(i,j));31     }32     public void move(int dir){33         if(this.dir+dir==0){34             System.out.println("不能逆向行驶！");35             System.out.println("游戏终止！");36             System.exit(0);37         }38         this.dir=dir;39         move();40     }41 }
       
      

1 package com.myproj.snake; 2  3 public class SnakePan { 4     private Snake snake=new Snake(); 5     public Snake getSnake() { 6         return snake; 7     } 8     public void setSnake(Snake snake) { 9         this.snake = snake;10     }11     public void paint(){12         for(int i=0;i<=15;i++){13             for(int j=0;j<=40;j++){14                 if(i==0||i==15){15                     System.out.print("-");16                 }else if(j==0||j==40){17                     System.out.print("|");18                 }else if(snake.contains(i,j)){19                     System.out.print("■");20                 }else{21                     System.out.print(" ");22                 }23             }24             System.out.println();25         }26     }27 }

1 package com.myproj.snake; 2  3 import java.util.Scanner; 4  5 public class SnakeTest { 6     public static void main(String[] args){ 7         SnakePan snakePan=new SnakePan(); 8         Snake snake=snakePan.getSnake(); 9         snakePan.paint();10         /*for(int i=0;i<10;i++){11             snakePan.paint();12             snake.move();13             try {14                 Thread.sleep(1000);15             } catch (InterruptedException e) {16                 // TODO Auto-generated catch block17                 e.printStackTrace();18             }19         }*/20         21         Scanner scanner=new Scanner(System.in);22         System.out.println("请输入方向【上（U）、下（D）、左（L）、右（R）】：");23         while(true){24             String dir=scanner.nextLine();25             if(dir.equalsIgnoreCase("U")){26                 snake.move(snake.UP);27             }else if(dir.equalsIgnoreCase("D")){28                 snake.move(snake.DOWN);29             }else if(dir.equalsIgnoreCase("L")){30                 snake.move(snake.LEFT);31             }else if(dir.equalsIgnoreCase("R")){32                 snake.move(snake.RIGHT);33             }else{34                 System.exit(0);35             }36             snakePan.paint();37         }        38     }39 }