java貪食蛇 極速不死版

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFrame;

/**

@url http://download.csdn.net/detail/leasystu/4308246

@author Easy
*/
public class InterFace extends JFrame {
 public static final int WIDTH = 800, HEIGHT = 600, SLEEPTIME = 20, L = 1,

     R = 2, U = 3, D = 4;

BufferedImage offersetImage = new BufferedImage(WIDTH, HEIGHT,

     BufferedImage.TYPE_3BYTE_BGR);;

Rectangle rect = new Rectangle(20, 40, 15  50, 15  35);
 Snake snake;
 Node node;
public InterFace() {

 snake = new Snake(this);
 createNode();
 this.setBounds(100, 100, WIDTH, HEIGHT);
 this.addKeyListener(new KeyAdapter() {
     public void keyPressed(KeyEvent arg0) {
         System.out.println(arg0.getKeyCode());
         switch (arg0.getKeyCode()) {
         case KeyEvent.VK_LEFT:
             snake.dir = L;
             break;
         case KeyEvent.VK_RIGHT:
             snake.dir = R;
             break;
         case KeyEvent.VK_UP:
             snake.dir = U;
             break;
         case KeyEvent.VK_DOWN:
             snake.dir = D;
         }
     }
 });
 this.setTitle("貪吃蛇 0.1   By ： Easy");
 this.setDefaultCloseOperation(EXIT_ON_CLOSE);
 this.setVisible(true);
 new Thread(new ThreadUpadte()).start();

}
public void paint(Graphics g) {

 Graphics2D g2d = (Graphics2D) offersetImage.getGraphics();
 g2d.setColor(Color.white);
 g2d.fillRect(0, 0, WIDTH, HEIGHT);
 g2d.setColor(Color.black);
 g2d.drawRect(rect.x, rect.y, rect.width, rect.height);
 if (snake.hit(node)) {
     createNode();
 }
 snake.draw(g2d);
 node.draw(g2d);
 g.drawImage(offersetImage, 0, 0, null);

}
class ThreadUpadte implements Runnable {

 public void run() {
     while (true) {
         try {
             Thread.sleep(SLEEPTIME);
             repaint();
         } catch (InterruptedException e) {
             e.printStackTrace();
         }
     }
 }

}
public void createNode() {

 int x = (int) (Math.random() * 650) + 50, y = (int) (Math.random() * 500) + 50;
 Color color = Color.blue;
 node = new Node(x, y, color);

}
public static void main(String args[]) {

 new InterFace();

}
}


class Node {
    int x, y, width = 15, height = 15;
    Color color;

public Node(int x, int y, Color color) {
    this(x, y);
    this.color = color;
}

public Node(int x, int y) {
    this.x = x;
    this.y = y;
    this.color = color.black;
}

public void draw(Graphics2D g2d) {
    g2d.setColor(color);
    g2d.drawRect(x, y, width, height);
}

public Rectangle getRect() {
    return new Rectangle(x, y, width, height);
}

}
class Snake {
    public List<Node> nodes = new ArrayList<Node>();
    InterFace interFace;
    int dir = InterFace.R;

public Snake(InterFace interFace) {
    this.interFace = interFace;
    nodes.add(new Node(20 + 150, 40 + 150));
    addNode();
}

public boolean hit(Node node) {
    for (int i = 0; i < nodes.size(); i++) {
        if (nodes.get(i).getRect().intersects(node.getRect())) {
            addNode();
            return true;
        }
    }
    return false;
}

public void draw(Graphics2D g2d) {
    for (int i = 0; i < nodes.size(); i++) {
        nodes.get(i).draw(g2d);
    }
    move();
}

public void move() {
    nodes.remove((nodes.size() - 1));
    addNode();
}

public synchronized void addNode() {
    Node nodeTempNode = nodes.get(0);
    switch (dir) {
    case InterFace.L:
        if (nodeTempNode.x <= 20) {
            nodeTempNode = new Node(20 + 15 * 50, nodeTempNode.y);
        }
        nodes.add(0, new Node(nodeTempNode.x - nodeTempNode.width,
                nodeTempNode.y));
        break;
    case InterFace.R:
        if (nodeTempNode.x >= 20 + 15 * 50 - nodeTempNode.width) {
            nodeTempNode = new Node(20 - nodeTempNode.width, nodeTempNode.y);
        }
        nodes.add(0, new Node(nodeTempNode.x + nodeTempNode.width,
                nodeTempNode.y));
        break;
    case InterFace.U:
        if (nodeTempNode.y <= 40) {
            nodeTempNode = new Node(nodeTempNode.x, 40 + 15 * 35);
        }
        nodes.add(0, new Node(nodeTempNode.x, nodeTempNode.y
                - nodeTempNode.height));
        break;
    case InterFace.D:
        if (nodeTempNode.y >= 40 + 15 * 35 - nodeTempNode.height) {
            nodeTempNode = new Node(nodeTempNode.x,
                    40 - nodeTempNode.height);
        }
        nodes.add(0, new Node(nodeTempNode.x, nodeTempNode.y
                + nodeTempNode.height));
        break;
    }
}

}</pre>