帮我注释一下java 贪吃蛇

帮我注释一下java 贪吃蛇 急急急~~~~帮我注释一下java 贪吃蛇 麻烦能不能帮我把这段代码详细的注释一下 谢谢 包括一些申明 定义什么的import java.util.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class SnakeGame{ public static void main(String[] args){ SnakeFrame frame = new SnakeFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } } //----------状态的线程 class StatusRunnable implements Runnable{ public StatusRunnable(Snake snake,JLabel statusLabel,JLabel scoreLabel){ this.statusLabel = statusLabel; this.scoreLabel = scoreLabel; this.snake = snake; } public void run(){ String sta = ; String spe = ; while(true){ switch(snake.status){ case Snake.RUNNING: sta = Running ;break; case Snake.PAUSED: sta = Paused ;break; case Snake.GAMEOVER: sta = GameOver ;break; } statusLabel.setText(sta); scoreLabel.setText( +snake.score); try{ Thread.sleep(100); } catch(Exception e){ } } } private JLabel scoreLabel; private JLabel statusLabel; private Snake snake; } //----------蛇运动以及记录分数的线程 class SnakeRunnable implements Runnable{ public SnakeRunnable(Snake snake,Component component){ this.snake = snake; this.component = component; } public void run(){ while(true){ try{ snake.move(); component.repaint(); Thread.sleep(snake.speed); } catch(Exception e){ } } } private Snake snake; private Component component; } class Snake{ boolean isRun;//---------是否运动中 ArrayList Node body;//-----蛇体 Node food;//--------食物 int derection;//--------方向 int score ; int status; int speed; public static final int SLOW = 500; public static final int MID = 300; public static final int FAST = 100; public static final int RUNNING = 1; public static final int PAUSED = 2; public static final int GAMEOVER = 3; public static final int LEFT = 1; public static final int UP = 2; public static final int RIGHT = 3; public static final int DOWN = 4; public Snake(){ speed = Snake.LOW; score = 0; isRun = false; status = Snake.RUNNING; derection = Snake.RIGHT; body = new ArrayList Node (); body.add(new Node(60,20)); body.add(new Node(40,20)); body.add(new Node(20,20)); makeFood(); } //------------判断食物是否被蛇吃掉 //-------如果食物在蛇运行方向的正前方，并且与蛇头接触，则被吃掉 private boolean isEaten(){ Node head = body.get(0); if(derection == Snake.RIGHT (head.x+Node.W) == food.x head.y == food.y ) return true; if(derection == Snake.LEFT (head.x-Node.W) == food.x head.y == food.y ) return true; if(derection == Snake.UP head.x == food.x (head.y-Node.H) == food.y ) return true; if(derection == Snake.DOWN head.x == food.x (head.y+Node.H) == food.y ) return true; else return false; } //----------是否碰撞 private boolean isCollsion(){ Node node = body.get(0);