Java貪吃蛇游戲
最近要考試了，但是還是抽出時間來做一個貪吃蛇玩玩，大概幾天的時間吧，中途也遇到很多問題，但還是解決了，感謝狂神，
總結，開發需要一定的邏輯思維，分模塊開發，把邏輯理清了，開發就不難了，希望多努力學習，
游戲的啟動主類
package Snake;
import javax.swing.*;
//游戲的主啟動類
public class Startgame {
public static void main(String[] args) {
JFrame jFrame = new JFrame();
//游戲界面大小
jFrame.setBounds(10,10,900,720);
//設定不可拉伸
jFrame.setResizable(false);
//設定默認關閉
jFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
//視窗中加入面板
jFrame.add(new GamePanel());
//設定可見
jFrame.setVisible(true);
}
}
存放資料圖片的類
package Snake;
import javax.swing.*;
import java.net.URL;
public class Data {
//廣告位
public static URL ggURL = Data.class.getResource("SnakeData/gg.png");//注意 相對路徑和絕對路徑
public static ImageIcon head = new ImageIcon(ggURL);
//頭部
public static URL upURL = Data.class.getResource("SnakeData/up.png");
public static URL downURL = Data.class.getResource("SnakeData/down.png");
public static URL leftURL = Data.class.getResource("SnakeData/left.png");
public static URL rightURL = Data.class.getResource("SnakeData/right.png");
public static ImageIcon up = new ImageIcon(upURL);
public static ImageIcon down = new ImageIcon(downURL);
public static ImageIcon left = new ImageIcon(leftURL);
public static ImageIcon right = new ImageIcon(rightURL);
//身體
public static URL bodyURL = Data.class.getResource("SnakeData/body.png");
public static ImageIcon body = new ImageIcon(bodyURL);
//食物
public static URL foodURL = Data.class.getResource("SnakeData/food.png");
public static ImageIcon food = new ImageIcon(foodURL);
}
面板類，包含游戲實作的細節
package Snake;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Random;
/**\
* @author LiJian
* @version 1.0
*
*/
//繪制一個游戲，游戲中的所有東西，都是由畫筆來畫
public class GamePanel extends JPanel implements KeyListener,ActionListener{
//初始化變數區
int length;//蛇長
int[] snakeX = new int[600];//蛇的X坐標,定義應大于游戲界面的寬度
int[] snakeY = new int[500];
//初始化方向
String direction= "R";
//重繪的間隔
Timer timer = new Timer(100,this);
//食物
int foodx;
int foody;
Random random = new Random();
//判斷是否開始和是否失敗
boolean isFial = false;
boolean isStart;
//分數
int score = 0;
//初始構造器
public GamePanel() {
init();
this.setFocusable(true);//獲得焦點事件
this.addKeyListener(this);//初始化監聽事件
timer.start();
}
//初始化方法,對蛇初始化位置和長度
public void init() {
length = 3;
snakeX[0] = 100;snakeY[0] = 100; //蛇頭的第一個坐標
snakeX[1] = 75;snakeY[1] = 100; //第一個身體的坐標
snakeX[2] = 50; snakeY[2] = 100;
isStart= false;
foodx = 25+25*(random.nextInt(32)%32);
foody = 75+25*(random.nextInt(22)%22);
}
//畫組件的重寫方法
@Override
protected void paintComponent(Graphics g) { //paintComponent畫組件的方法
super.paintComponent(g);
//面板設定背景顏色
this.setBackground(Color.WHITE);
Data.head.paintIcon(this, g, 25, 11);
//默認的游戲界面
g.fillRect(25, 75, 850, 600);//游戲的界面
if (direction == "R") {
Data.right.paintIcon(this, g, snakeX[0], snakeY[0]);//蛇頭初始化向右
} else if (direction == "L") {
Data.left.paintIcon(this, g, snakeX[0], snakeY[0]);
} else if (direction == "U") {
Data.up.paintIcon(this, g, snakeX[0], snakeY[0]);
} else if (direction == "D") {
Data.down.paintIcon(this, g, snakeX[0], snakeY[0]);
}
//畫積分
g.setColor(new Color(30, 229, 30));//設定畫筆顏色
g.setFont(new Font("微軟雅黑", Font.BOLD, 18));//設定字體的樣式，粗細，大小
g.drawString("長度："+length, 790, 35);
g.drawString("積分："+score, 790, 56);
//畫食物
Data.food.paintIcon(this,g,foodx,foody);
for (int i = 1; i < length; i++) {
Data.body.paintIcon(this, g, snakeX[i], snakeY[i]);
}
//開始的頁面狀態
if (isStart==false) {
g.setColor(new Color(248, 246, 246));//設定畫筆顏色
g.setFont(new Font("微軟雅黑", Font.BOLD, 60));//設定字體的樣式，粗細，大小
g.drawString("按下空格鍵開始", 240, 350);
}
if (isFial){
g.setColor(Color.RED);//設定畫筆顏色
g.setFont(new Font("微軟雅黑", Font.BOLD, 60));//設定字體的樣式，粗細，大小
g.drawString("游戲失敗，按下空格重新開始", 70, 350);
}
}//畫進去的東西要變
//監聽事件
@Override
public void keyPressed(KeyEvent e) {
int keycode = e.getKeyCode();//獲得鍵盤按下的鍵值
if (keycode == KeyEvent.VK_SPACE) {
if (isFial==true){
isFial = false;
init();
}else {
isStart = !isStart;//取反，開始之后停止之后再開始
}
repaint();
}
//鍵盤控制走向
if (keycode==KeyEvent.VK_UP){
direction = "U";
}else if (keycode==KeyEvent.VK_DOWN){
direction = "D";
}else if (keycode==KeyEvent.VK_LEFT){
direction = "L";
}else if (keycode==KeyEvent.VK_RIGHT){
direction = "R";
}
//身體動起來
for (int i = length-1; i >0 ; i--) {
snakeX[i] = snakeX[i-1];//向前移一節
snakeY[i] = snakeY[i-1];
}
// snakeX[0] = snakeX[0]+25;
repaint();//重畫
}//按下未釋放
//動態重繪時間幀
@Override
public void actionPerformed(ActionEvent e) {
if (isStart == true&&isFial==false){
for (int i = length - 1; i > 0; i--) {
snakeX[i] = snakeX[i - 1];
snakeY[i] = snakeY[i - 1];
}
if (direction.equals("R")){
snakeX[0] = snakeX[0] + 25;if (snakeX[0] > 850) {snakeX[0] = 25;}
}else if(direction.equals("L")){
snakeX[0] = snakeX[0] - 25;if (snakeX[0] <25) {snakeX[0] = 850;}
}else if(direction.equals("U")){
snakeY[0] = snakeY[0] - 25;if (snakeY[0] <75) {snakeY[0] = 650;}
}else if(direction.equals("D")){
snakeY[0] = snakeY[0] + 25;if (snakeY[0] > 650) {snakeY[0] = 75;}
}
if (snakeX[0]==foodx&&snakeY[0]==foody){
length += 1;
score+=10;
foodx = 25 +25*random.nextInt(34);
foody = 25 +25*random.nextInt(24);
}
for (int i = 1; i < length; i++) {
if (snakeX[0]==snakeX[i]&&snakeY[0]==snakeY[i]){
isFial = true;
score=0;
}
}
repaint();
timer.start();
}
}
//多余的重寫方法
@Override
public void keyTyped(KeyEvent e) {}
@Override
public void keyReleased(KeyEvent e) {}
}
代碼中存在注釋，有用拿走，嘿嘿！！
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