计算机软件实习项目二学习目标：学习内容：学习产出：

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我是靠谱客的博主坦率河马，最近开发中收集的这篇文章主要介绍计算机软件实习项目二学习目标：学习内容：学习产出：，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

学习目标：

贪吃蛇游戏开发

学习内容：

 实现贪吃蛇游戏基本功能，屏幕上随机出现一个“食物”，称为豆子，
上下左右控制“蛇”的移动，吃到“豆子”以后“蛇”的身体加长一点。
 “蛇”碰到边界或蛇头与蛇身相撞，蛇死亡，游戏结束。
 为游戏设计友好的交互界面；例如欢迎界面，游戏界面，
游戏结束界面。要有开始键、暂停键和停止退出的选项。
 对蛇吃到豆子进行分值计算，可以设置游戏速度，游戏音乐
等拓展元素。

学习产出：

package snake;
import java.awt.;
import java.awt.event.;
import javax.swing.*;
import java.util.LinkedList;
import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;

public class MainFrame extends JFrame{
private Snake snake;
private Timer timer;
private JPanel JPanel;
private Node food;

public MainFrame() /*throws HeadlessException*/{
initFrame();
initGamePalge();
initSnake();
initFood();
initTimer();
setKeyListener();
}
private void initFood() {
food=new Node();
food.random();
}
private void setKeyListener() {
addKeyListener(new KeyAdapter(){
public void keyPressed(KeyEvent e) {
switch(e.getKeyCode()) {
case KeyEvent.VK_UP:
if(snake.getDirection()!=Direction.DOWN) {
snake.setDirection(Direction.UP);
}
break;
case KeyEvent.VK_DOWN:
if(snake.getDirection()!=Direction.UP) {
snake.setDirection(Direction.DOWN);
}
break;
case KeyEvent.VK_LEFT:
if(snake.getDirection()!=Direction.RIGHT) {
snake.setDirection(Direction.LEFT);
}
break;
case KeyEvent.VK_RIGHT:
if(snake.getDirection()!=Direction.LEFT) {
snake.setDirection(Direction.RIGHT);
}
break;
}
}
});
}
private void initTimer() {
timer=new Timer();
TimerTask timerTask=new TimerTask() {
public void run() {
snake.move();
Node head=snake.getBody().getFirst();
if(head.getX()==food.getX()&&head.getY()==food.getY()) {
snake.eat(food);
food.random();
}
JPanel.repaint();
}
};
timer.scheduleAtFixedRate(timerTask,0,100);
}
private void initSnake() {
snake=new Snake();
}
private void initGamePalge() {
JPanel JPanel=new JPanel() {
public void paint(Graphics g) {
g.clearRect(0, 0, 600, 600);
for(int i=0;i<40;i++) {
g.drawLine(0, i*15, 600, i*15);
}
for(int i=0;i<40;i++) {
g.drawLine(i*15, 0, i*15, 600);
}
LinkedList<Node> body=snake.getBody();
for(Node node:body) {
g.fillRect(node.getX()*15,node.getY()*15,15,15);
}
g.fillRect(food.getX()*15, food.getY()*15,15,15);
}
};
add(JPanel);
}
private void initFrame() {
setTitle("贪吃蛇");
setSize(640,620);
setLocation(400,400);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
class Node {
private int x;
private int y;
public Node() {
}
public Node(int x,int y) {
this.x=x;
this.y=y;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x=x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y=y;
}
public void random(){
Random r=new Random();
this.x=r.nextInt(40);
this.y=r.nextInt(40);
}
}
class Snake {
private LinkedList<Node> body;
private Direction direction=Direction.LEFT;
private boolean isLiving=true;
public Snake() {
initSnake();
}
private void initSnake() {
body=new LinkedList<>();
body.addFirst(new Node(18,20));
body.addFirst(new Node(19,20));
body.addFirst(new Node(20,20));
body.addFirst(new Node(21,20));
}
public void move() {
if(isLiving) {
Node head=body.getFirst();
switch(direction) {
case UP:
body.add(new Node(head.getX(),head.getY()-1));
break;
case DOWN:
body.add(new Node(head.getX(),head.getY()+1));
break;
case LEFT:
body.add(new Node(head.getX()-1,head.getY()));
break;
case RIGHT:
body.add(new Node(head.getX()+1,head.getY()));
break;
}
body.removeLast();
head=body.getFirst();
if(head.getX()<0||head.getY()<0||head.getX()>=40||head.getY()>=40) {
isLiving=false;
}
for(int i=1;i<body.size();i++) {
Node node=body.get(i);
if(head.getX()==node.getX()&&head.getY()==node.getY()) {
isLiving=false;
}
}
}
}
public LinkedList<Node> getBody(){
return body;
}
public void
setBody(LinkedList<Node> body){
this.body=body;
}
public Direction getDirection() {
return direction;
}
public void setDirection(Direction direction) {
this.direction=direction;
}
public void eat(Node food) {
Node head=body.getFirst();
switch(direction) {
case UP:
body.add(new Node(head.getX(),head.getY()-1));
break;
case DOWN:
body.add(new Node(head.getX(),head.getY()+1));
break;
case LEFT:
body.add(new Node(head.getX()-1,head.getY()));
break;
case RIGHT:
body.add(new Node(head.getX()+1,head.getY()));
break;
}
}
}
enum Direction {
UP,DOWN,LEFT,RIGHT
}
public static void main(String[] args) {
new MainFrame().setVisible(true);
}
}

运用节点控制蛇头移动，食物生成和蛇体增长，设置撞墙死亡和吃自己死亡，通过repaint重绘画布，通过定时更新，eclipseTime模块运行出错。