这是达内培训班java培训很经典的一个案例，分享一下吧。
Game主类
package huat;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
import javax.swing.*;
public class Game extends JPanel { // 继承面板
BufferedImage bg;
Bird bird;
Arrow arrow;
Ground ground;
Column column1, column2;
Heart heart;
int score;
boolean gamestart;
BufferedImage gameoverImg;
BufferedImage gamestartImg;
boolean gameover;
boolean showheart;
public Game() throws Exception { // 构造方法
try { // 抛出异常或捕获异常
bg = ImageIO.read(getClass().getResource("bg.png"));
} catch (IOException e) {
e.printStackTrace();
}
ground = new Ground();
column1 = new Column(1);
column2 = new Column(2);
bird = new Bird();
heart = new Heart();
arrow = new Arrow();
gamestartImg = ImageIO.read(getClass().getResource("start.png"));
gameoverImg = ImageIO.read(getClass().getResource("gameover.png"));
score = 0;
gamestart = false;
showheart = true;
}
public static void main(String[] args) throws Exception {
JFrame frame = new JFrame("昌哥出品，闲人勿仿!");
Game game = new Game();// game引用，new Game()对象
frame.add(game); // 基本数据类型，引用数据类型
frame.setSize(432, 644);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setAlwaysOnTop(true);
frame.setVisible(true);// 调用paint方法绘制对话框
game.action();
}
public void paint(Graphics g) {// 重写paint方法
g.drawImage(bg, 0, 0, null);
g.drawImage(column1.image, column1.x - column1.width / 2, column1.y - column1.height / 2, null);
g.drawImage(column2.image, column2.x, column2.y - column2.height / 2, null);
g.drawImage(ground.image, ground.x, ground.y, null);
Graphics2D g2 = (Graphics2D) g;
g2.rotate(bird.alpha, bird.x, bird.y); // 旋转角度由鸟决定
g.drawImage(bird.image, bird.x - bird.width / 2, bird.y - bird.height / 2, null);
g2.rotate(-bird.alpha, bird.x, bird.y);
Font f = new Font(Font.SANS_SERIF, Font.BOLD, 40);
g.setFont(f);
g.drawString(score + "", 40, 60);
g.setColor(new Color(255, 255, 255));
g.drawString(score + "", 42, 63);
g.drawString("life:" + bird.life + "", 300, 63);
g.drawImage(arrow.image, arrow.x, arrow.y, null);
if (score >= 8 && score < 9) {
g.setColor(new Color(25, 165, 105));
g.drawString("がんばって", 50, 120);
}
if ((score % 5 == 1 || score % 5 == 2) && showheart == true) {
g.drawImage(heart.image, heart.x, heart.y, null);
}
if (!gamestart) {
g.drawImage(gamestartImg, 0, 0, null);
}
if (gameover) {
g.drawImage(gameoverImg, 0, 0, null);
g.setColor(Color.RED);
g.drawString("your grade is:" + score + "", 60, 100);
}
}
public void action() throws InterruptedException {
MouseListener L = new MouseAdapter() {// 鼠标监听器，适配器
@Override // 标签
public void mouseClicked(MouseEvent e) {
if (!gamestart && !gameover) {
gamestart = true;
} else if (gameover) {
gameover = false;
score = 0;
} else if (heart.x >= bird.x - bird.width && heart.x <= bird.x + bird.width
&& heart.y >= bird.y - bird.height && heart.y <= bird.y + bird.height) {
bird.life++;
bird.flyup();
showheart = false;
heart.x = 1000;
}
bird.flyup();
}
};
this.addMouseListener(L);
while (true) {
if (!gameover && gamestart) {
ground.step();
column1.step();
column2.step();
arrow.step();
bird.step();
bird.fly();
if (score % 5 == 1 || score % 5 == 2) {
heart.step();
}
if (column1.x == bird.x || column2.x == bird.x) {
score++;
}
if (bird.hit(ground) || bird.hit(column1) || bird.hit(column2) || bird.hit(arrow)) {
bird.life--;
Thread.sleep(100);
}
if (bird.life <= 0) {
gameover = true;
bird.life = 1;
}
if (heart.x > bird.x)
showheart = true;
}
repaint();
if (score < 8) {
Thread.sleep(1000 / 60);
} else if (score >= 8 && score < 14) {
bird.g = 2;
Random ran = new Random();
arrow.y = ran.nextInt(156) + 172;
column1.y = ran.nextInt(30) + 192;
column2.y = ran.nextInt(30) + 192;
ground.y = ran.nextInt(30) + 450;
Thread.sleep(1000 / 90);
} else if (score >= 14 && score < 50) {
bird.g = 2.5;
Thread.sleep(1000 / 110);
}
}
}
}
Bird类
package huat;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
public class Bird {
BufferedImage image;
int x, y;
int width, height;
int size;
BufferedImage[] images;
int index;
double s;
double t;
double v;
double alpha;
double g;
int life;
public Bird() throws Exception {
image = ImageIO.read(getClass().getResource("0.png"));
width = image.getWidth();
height = image.getHeight();
x = 100;
y = 100;
s = 0;
v = 0;
t = 0.25;
g = 1.25;
index = 0;
life = 1;
images = new BufferedImage[8];
for (int i = 0; i < images.length; i++) {
images[i] = ImageIO.read(getClass().getResource(i + ".png"));
}
}
public void flyup() {
v = -10;
}
public void fly() {
image = images[(index++ / 5) % 8];
}
public void step() {
v = v + 1.25 * t;
s = v * t + g * t * t;
y += s;
alpha = Math.atan2(s, 6);
}
public boolean hit(Ground g) {
if (y > g.y) {
alpha = Math.PI / 2;
x = 100;
y = 200;
return true;
} else
return false;
}
public boolean hit(Column c) {
if (x > c.x - c.width / 2 && x < c.x + c.width / 2 && (y > c.y + c.gap / 2 || y < c.y - c.gap / 2)) {
x += 100;
y = 200;
return true;
}
return false;
}
public boolean hit(Arrow a) {
if (a.y > y - height && a.y <= y && a.x <= x + width / 2 && a.x + 200 > x) {
a.x = -200;
return true;
}
return false;
}
}Column柱子类
package huat;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
public class Column {
BufferedImage image;
int width,height;
int x,y;//图片中性点
int gap;//柱子中间间隙
int distance;
Random ran=new Random();
public Column(int n) throws IOException{
image = ImageIO.read(getClass().getResource("column.png"));
width=image.getWidth();
height=image.getHeight();
gap=141;
distance=260;
y=ran.nextInt(156)+172;//[0,100] //172 , 328
x=50+(n-1)*distance;
}
public void step(){
x--;
if(x==-100)
{
x=480;
y=ran.nextInt(156)+172;
}
}
}
Ground地面类
package huat;
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;
public class Ground {
BufferedImage image;
int width,hight;
int x,y;//左上角点
public Ground() throws IOException{
image = ImageIO.read(getClass().getResource("ground.png"));
width=image.getWidth();
hight=image.getHeight();
x=0;
y=500;
}
public void step(){
x--;
if(x==-109)
{
x=0;
}
}
}
Heart类用于增加生命值
package huat;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
public class Heart {
BufferedImage image;
int x,y;//图片中性点
int width;
int height;
Random ran=new Random();
public Heart() throws IOException{
image = ImageIO.read(getClass().getResource("heart.png"));
y=ran.nextInt(156)+172;//[0,100] //172 , 328
x=200;
width=image.getWidth();
height=image.getHeight();
}
public void step(){
x--;
if(x==-100)
{
x=ran.nextInt(156)+172;
y=ran.nextInt(156)+172;
}
}
}
Arrow类用于增加难度
package huat;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
public class Arrow {
BufferedImage image;
int x,y;
int v;
double t;
double g;
double s;
double alpha;
Random ran = new Random();
public Arrow() throws IOException{
image = ImageIO.read(getClass().getResource("arrow.png"));
t=0.25;
g=0.25;
x=600;
v=-40;
y=ran.nextInt(156)+172;
}
public void step(){
x+=v*t;
y+=g*t*t;
alpha=Math.atan2(-x, 6);
if(x<=-200){
x=800;
y=ran.nextInt(300)+50;
}
}
}