Java 从JFrame中删除JPanel后添加它
我正在开发一个Java游戏。我陷入了困境，在游戏结束后我需要重新启动整个游戏。以下是我的程序框架：Java 从JFrame中删除JPanel后添加它,java,swing,jframe,jpanel,paintcomponent,Java,Swing,Jframe,Jpanel,Paintcomponent,我正在开发一个Java游戏。我陷入了困境，在游戏结束后我需要重新启动整个游戏。以下是我的程序框架： package projectflappy; import java.awt.*; public final class TheGame extends JFrame implements MouseListener{ JPanel jp; //declaration of the varibles int x_width = 500; int y_height = 500; int
package projectflappy;
import java.awt.*;
public final class TheGame extends JFrame implements MouseListener{
JPanel jp;
//declaration of the varibles
int x_width = 500;
int y_height = 500;
int count = 5 ;
Ellipse2D Ball;
int x_ball;
int y_ball;
int cord_xup1,cord_xdown1;
int cord_xup2,cord_xdown2;
int cord_xup3,cord_xdown3;
int cord_xup4,cord_xdown4;
int cord_xup5,cord_xdown5;
Boolean flag = true;
RoundRectangle2D up1,down1,up2,down2,up3,down3,up4,down4;
Font font = new Font("Matura MT Script Capitals",Font.ROMAN_BASELINE,40);
Font font1 = new Font("Matura MT Script Capitals",Font.ROMAN_BASELINE,20);
Font font3 = new Font("Matura MT Script Capitals",Font.ROMAN_BASELINE,20);
float das[] = {10.0f};
BasicStroke color = new BasicStroke(10,BasicStroke.CAP_ROUND,BasicStroke.JOIN_BEVEL,20.0f,das,0.0f);
GradientPaint gp2 = new GradientPaint(20, 0,
Color.DARK_GRAY, 0, 10, Color.GRAY, true);
GradientPaint gp3 = new GradientPaint(30, 0,
Color.BLACK, 0, 20, Color.GREEN, true);
Toolkit kit = Toolkit.getDefaultToolkit();
//Getting the "background.jpg" image we have in the folder
Image background = kit.getImage("D:\\College\\Programs\\ProjectFLAPPY\\src\\projectflappy\\1.png");
JLabel a = new JLabel("Get Ready ! Click to Start.");
JLabel retry = new JLabel(new ImageIcon("D:\\College\\Programs\\ProjectFLAPPY\\src\\projectflappy\\unnamed.png"));
int score = 0;
//constructor
public TheGame() throws IOException
{
super("Simple Drawing");
setSize(x_width, y_height);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
jp = new DrawingPanel();
add(jp);
addMouseListener(this);
}
ActionListener action = new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
update();
repaint();
}
};
Timer t = new Timer(50,action);
public void init()
{
x_ball = 30;
y_ball = 200;
cord_xup1 = 175; cord_xdown1 = 175;
cord_xup2 = 320; cord_xdown2 = 320;
cord_xup3 = 460; cord_xdown3 = 460;
cord_xup4 = 585; cord_xdown4 = 585;
cord_xup5 = 700; cord_xdown5 = 700;
retry.setVisible(false);
retry.setBounds(175,260,46,46);
a.setForeground(Color.YELLOW);
a.setFont(font1);
a.setVisible(true);
a.setBounds(105,200,300,100);
}
@Override
public void mouseClicked(MouseEvent e) {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
a.setVisible(false);
if( flag == false)
{
t.stop();
}
else
{
t.start();
}
y_ball = y_ball - 40;
count--;
}
@Override
public void mousePressed(MouseEvent e) {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public void mouseReleased(MouseEvent e) {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public void mouseEntered(MouseEvent e) {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public void mouseExited(MouseEvent e) {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
// for drawing on the panel
class DrawingPanel extends JPanel{
private static final long serialVersionUID = 1L;
public DrawingPanel() {
setPreferredSize(new Dimension(300, 300));
setLayout(null);
init();
add(a);
add(retry);
// addMouseListener(this);
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D d = (Graphics2D)g;
d.drawImage(background, -270,-30, this);
Ball = new Ellipse2D.Double(x_ball,y_ball,30,30);
d.setColor(Color.green);
d.setFont(font3);
up1 = new RoundRectangle2D.Double(cord_xup1,-5,30,175,20,20);
down1 = new RoundRectangle2D.Double(cord_xdown1,310,30,155,20,20);
up2 = new RoundRectangle2D.Double(cord_xup2,-5,30,200,20,20);
down2 = new RoundRectangle2D.Double(cord_xdown2,310,30,175,20,20);
up3 = new RoundRectangle2D.Double(cord_xup3,-5,30,230,20,20);
down3 = new RoundRectangle2D.Double(cord_xdown3,350,30,135,20,20);
up4 = new RoundRectangle2D.Double(cord_xup4,-5,30,115,20,20);
down4 = new RoundRectangle2D.Double(cord_xdown4,240,30,115,20,20);
d.setPaint(gp2);
d.setStroke(color);
d.fill(up1);
d.fill(down1);
d.fill(up2);
d.fill(down2);
d.fill(up3);
d.fill(down3);
d.fill(up4);
d.fill(down4);
d.setPaint(gp3);
d.setStroke(color);
d.fill(Ball);
d.setColor(Color.BLACK);
d.setFont(font1);
d.drawString(""+score ,200,50);
if( Ball.intersects(up1.getBounds()) || Ball.intersects(down1.getBounds()) || Ball.intersects(up2.getBounds()) || Ball.intersects(down2.getBounds()) || Ball.intersects(up3.getBounds()) || Ball.intersects(down3.getBounds()) || Ball.intersects(up4.getBounds()) || Ball.intersects(down4.getBounds()))
{
t.stop();
flag = false;
d.setColor(Color.red);
d.setFont(font);
d.drawString("Game Over : "+score ,100,250);
retry.setVisible(true);
}
retry.addMouseListener(new MouseListener() {
@Override
public void mouseClicked(MouseEvent event) {
init(); //reset properties
}
//...
@Override
public void mousePressed(MouseEvent e) {
// throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public void mouseReleased(MouseEvent e) {
// throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public void mouseEntered(MouseEvent e) {
// throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public void mouseExited(MouseEvent e) {
// throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
});
}
}
public void update()
{
cord_xdown1 -= 5;
cord_xup1 -= 5;
cord_xdown2 -= 5;
cord_xup2 -= 5;
cord_xdown3 -= 5;
cord_xup3 -= 5;
cord_xdown4 -= 5;
cord_xup4 -= 5;
cord_xdown5 -= 5;
cord_xup5 -= 5;
if( cord_xup1 <=-20)
{
cord_xup1 = 500;
cord_xdown1 = 500;
}
if( cord_xup2 <=-20)
{
cord_xup2 = 500;
cord_xdown2 = 500;
}
if( cord_xup3 <=-20)
{
cord_xup3 = 500;
cord_xdown3 = 500;
}
if( cord_xup4 <=-20)
{
cord_xup4 = 500;
cord_xdown4 = 500;
}
if( cord_xup5 <=-20)
{
cord_xup5 = 500;
cord_xdown5 = 500;
}
if(count >= 0)
{
y_ball = y_ball - 7;
count--;
if( y_ball == y_height)
{
t.stop();
}
}
else
{
y_ball = y_ball + 7;
if( y_ball == y_height-70)
{
t.stop();
}
}
if(cord_xdown1 == x_ball || cord_xdown2 == x_ball || cord_xdown3 == x_ball || cord_xdown4 == x_ball)
{
score = score+1;
}
}
public static void main(String[] args) throws IOException {
new TheGame();
}
}
packageprojectflappy；
导入java.awt.*；
公共最终类游戏扩展JFrame实现MouseStener{
JPanel jp,；
//变量声明
int x_宽度=500；
int y_高度=500；
整数计数=5；
椭圆球；
int x_球；
国际球；
内部跳线xup1，跳线xdown1；
int跳线xup2、跳线xdown2；
内部跳线xup3，跳线xdown3；
内部电源线xup4，电源线xDOW4；
内部跳线xup5，跳线xdown5；
布尔标志=真；
圆形矩形2D向上1、向下1、向上2、向下2、向上3、向下3、向上4、向下4；
Font Font=新字体（“Matura MT脚本大写字母”，字体：罗马字母，40）；
Font font1=新字体（“Matura MT脚本大写字母”，字体：罗马字母，20）；
Font font3=新字体（“Matura MT脚本大写字母”，字体：罗马字母，20）；
浮点das[]={10.0f}；
基本行程颜色=新的基本行程（10，基本行程圆帽，基本行程连接斜面，20.0f，das，0.0f）；
GradientPaint gp2=新的GradientPaint（20,0，
颜色：深灰色，0,10，颜色：灰色，真）；
GradientPaint gp3=新的GradientPaint（30,0，
颜色。黑色，0，20，颜色。绿色，真）；
Toolkit kit=Toolkit.getDefaultToolkit（）；
//获取文件夹中的“background.jpg”图像
Image background=kit.getImage（“D:\\College\\Programs\\ProjectFLAPPY\\src\\ProjectFLAPPY\\1.png”）；
JLabel a=新的JLabel（“准备好！单击开始”）；
JLabel retry=newjlabel（新图像图标（“D:\\College\\Programs\\ProjectFLAPPY\\src\\ProjectFLAPPY\\unnamed.png”）；
智力得分=0；
//建造师
public TheGame（）抛出IOException
{
超级（“简单图纸”）；
设置尺寸（x_宽度，y_高度）；
setDefaultCloseOperation（关闭时退出）；
setVisible（真）；
jp=新绘图面板（）；
加(jp);；
addMouseListener（这个）；
}
ActionListener动作=新建ActionListener（）{
@凌驾
已执行的公共无效行动（行动事件ae）{
更新（）；
重新油漆（）；
}
};
定时器t=新定时器（50，动作）；
公共void init（）
{
x_-ball=30；
y_球=200；
跳线xup1=175；跳线xdown1=175；
跳线xup2=320；跳线xdown2=320；
软线xup3=460；软线xdown3=460；
跳线xup4=585；跳线xdown4=585；
跳线xup5=700；跳线xdown5=700；
retry.setVisible（false）；
重试.setBounds（175260,46,46）；
a、 设置前景（颜色：黄色）；
a、 setFont（font1）；
a、 setVisible（真）；
a、 立根（105200300100）；
}
@凌驾
公共无效mouseClicked（MouseEvent e）{
//抛出新的UnsupportedOperationException（“尚未受支持”）；//若要更改生成的方法体，请选择“工具”“模板”。
a、 setVisible（假）；
如果（标志==false）
{
t、 停止（）；
}
其他的
{
t、 start（）；
}
y球=y球-40；
计数--；
}
@凌驾
公共无效鼠标按下（MouseEvent e）{
//抛出新的UnsupportedOperationException（“尚未受支持”）；//若要更改生成的方法体，请选择“工具”“模板”。
}
@凌驾
公共无效MouseEvent（MouseEvent e）{
//抛出新的UnsupportedOperationException（“尚未受支持”）；//若要更改生成的方法体，请选择“工具”“模板”。
}
@凌驾
公共无效鼠标事件（鼠标事件e）{
//抛出新的UnsupportedOperationException（“尚未受支持”）；//若要更改生成的方法体，请选择“工具”“模板”。
}
@凌驾
公共无效mouseExited（MouseEvent e）{
//抛出新的UnsupportedOperationException（“尚未受支持”）；//若要更改生成的方法体，请选择“工具”“模板”。
}
//用于在面板上绘制
类DrawingPanel扩展了JPanel{
私有静态最终长serialVersionUID=1L；
公共绘图面板（）{
setPreferredSize（新尺寸（300300））；
setLayout（空）；
init（）；
添加（a）；
添加（重试）；
//addMouseListener（这个）；
}
@凌驾
公共组件（图形g）{
超级组件（g）；
图形2d=（图形2d）g；
d、 drawImage（背景，-270，-30，此）；
Ball=新的椭圆E2D.双（x_-Ball，y_-Ball，30,30）；
d、 setColor（Color.green）；
d、 setFont（font3）；
up1=新的圆形矩形2D.双（跳线xup1，-5,30175,20,20）；
down1=新的圆形矩形2D.双（跳线直径1310,30155,20,20）；
up2=新的圆形矩形2D.双（跳线xup2，-5,30200,20,20）；
down2=新的圆形矩形2D.双（跳线\u xDOW2310,30175,20,20）；
up3=新的圆形矩形2D.双（跳线xup3，-5,30230,20,20）；
down3=新的圆形矩形2D.双（跳线向下3350,30135,20,20）；
up4=新的圆形矩形2D.双（跳线xup4，-5,30115,20,20）；
down4=新的圆形矩形2D.双（线下4240,30115,20,20）；
d、 setPaint（gp2）；
d、 设定行程（颜色）；
d、 填充（up1）；
d、 填充（向下1）；
d、 填充（up2）；
d、 填充（向下2）；
d、 填充（up3）；
d、 填充（向下3）；
d、 填充（up4）；
d、 填充（向下4）；
d、 setPaint（gp3）；
d、 设定行程（颜色）；
d、 填充（球）；
d、 设置颜色（颜色为黑色）；
d、 setFont（font1）；
d、 抽绳（“+”分数，200,50）；
if（Ball.intersects（up1.getBounds（））| Ball.intersects（down1.getBounds（））| Ball.intersects（up2.getBounds（））| Ball.intersects（up3.getBounds（））| Ball.intersects（down3.getBounds（））| Ball.intersects（up4.getBounds（））| Ball.intersects（down4.getBounds（））
{
t、 停止（）；
flag=false；
d、 setColor（Color.red）；
import java.awt.*;
import java.awt.event.*;
public class ResetTest extends Frame{
Button b;
TextField tf;
Frame f;
Panel p;
public ResetTest(){
f=this; //intialize frame f to this to have access to our frame in event handler methods
resetAll(); //first time call to resetAll will initialize all the parameters of the frame
f.pack();
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent we){
System.exit(0);
}
});
this.setLayout(new FlowLayout(FlowLayout.CENTER,20,20));
this.setVisible(true);
}
/**
This method will be called on click of button to
reset all the parameters of the frame so that we
get fresh new frame, everything as it was before.
**/
public void resetAll(){
b=new Button("Reset");
p=new Panel(new FlowLayout(FlowLayout.CENTER,20,20));
p.add(b);
tf = new TextField("Edit And Reset");
p.add(tf);
b.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
remove(p); //remove the panel that contains all our components
resetAll(); // reset all the components
f.pack(); //refreshes the view of frame when everything is reset.
}
});
add(p);
}
}
class NewClass{
public static void main(String[] args) {
ResetTest fReset = new ResetTest();
}
}
//Contains the properties that will change during gameplay
void init() {
retry.setVisible(false);
a.setForeground(Color.YELLOW);
//...
}
public DrawingPanel() {
setPreferredSize(new Dimension(300, 300));
setPreferredSize(new Dimension(300, 300));
setLayout(null);
init(); //sets properties
a.setFont(font1);
a.setVisible(true);
a.setBounds(105,200,300,100);
add(a);
retry.setBounds(175,260,46,46);
retry.addMouseListener(new MouseListener() {
public void mouseClicked(MouseEvent event) {
init(); //reset properties
}
//...
});
add(retry);
}
public class Launcher {
public static void main(String[] args) throws IOException {
EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
frame.add(new TheGame());
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
});
}
}
@SuppressWarnings("serial")
public final class TheGame extends JPanel implements MouseListener, ActionListener {
public static final int WIDTH = 500, HEIGHT = 500;
private final String START_SCORE = "0",
START_MESSAGE = "Get Ready ! Click to Start.",
BACKGROUND_URL = "/res/flappy.png";
private boolean currentlyPlaying, readyToJump, isAlive = true;
private int score;
private Timer timer;
private Image background;
private GameLabel messageLabel, scoreLabel;
private Collection<Obstacle> obstaclesInOrder;
private LinkedList<Obstacle> obstacles;
private Ball ball;
public TheGame() {
setPreferredSize(new Dimension(WIDTH, HEIGHT));
addMouseListener(this);
timer = new Timer(50, this);
background = loadBackgroundImage();
messageLabel = new GameLabel(START_MESSAGE, 150, 240);
scoreLabel = new GameLabel(START_SCORE, 250, 60);
obstacles = new LinkedList<>();
obstacles.removeAll(obstacles);
obstaclesInOrder = Arrays.asList(new Obstacle(175, 20, 45), new Obstacle(320), new Obstacle(460), new Obstacle(585), new Obstacle(700));
obstacles.addAll(obstaclesInOrder);
ball = new Ball(30, 100);
}
@Override
public void mouseClicked(MouseEvent e) {
if (!currentlyPlaying) {
startGame();
} else if (!isAlive) {
reset();
}
readyToJump = true;
}
private void startGame() {
currentlyPlaying = true;
messageLabel.update("");
timer.start();
}
private void endGame() {
isAlive = false;
scoreLabel.update("");
messageLabel.update("Game Over. Your score was " + Integer.toString(score));
timer.stop();
}
private void reset() {
ball.reset();
for (Obstacle obstacle : obstacles)
obstacle.reset();
messageLabel.update(START_MESSAGE, 150, 240);
scoreLabel.update(START_SCORE, 250, 60);
obstacles.removeAll(obstacles);
obstacles.addAll(obstaclesInOrder);
score = 0;
isAlive = true;
currentlyPlaying = false;
repaint();
}
@Override
public void actionPerformed(ActionEvent ae) {
update();
repaint();
}
private void update() {
if (isAlive) {
updateBallPosition();
updateObstaclePositions();
if(ballOutOfBounds() || playerCollidedWithObstacle()) {
endGame();
} else if(ballPassedObstacle()) {
addToScore();
setupNextObstacle();
}
}
}
private void updateBallPosition() {
if (readyToJump) {
readyToJump = false;
ball.jump();
} else {
ball.fall();
}
}
private void updateObstaclePositions() {
for (Obstacle obstacle : obstacles) {
if (obstacle.getX() <= -obstacle.getWidth()) {
obstacle.moveToBack();
continue;
}
obstacle.moveForward();
}
}
private void addToScore() {
scoreLabel.update(Integer.toString(++score));
}
private void setupNextObstacle() {
obstacles.addLast(obstacles.removeFirst());
}
private boolean ballOutOfBounds() {
return ball.getY() >= HEIGHT || ball.getY() <= 0;
}
private boolean ballAtObstacle() {
Obstacle currentObstacle = obstacles.getFirst();
return ball.getX() + ball.getWidth() >= currentObstacle.getX() && ball.getX() <= currentObstacle.getX() + currentObstacle.getWidth();
}
private boolean ballPassedObstacle() {
Obstacle currentObstacle = obstacles.getFirst();
return ball.getX() >= (currentObstacle.getX() + currentObstacle.getWidth());
}
private boolean playerCollidedWithObstacle() {
boolean collided = false;
if(ballAtObstacle()) {
for (Obstacle obstacle : obstacles) {
RoundRectangle2D top = obstacle.getTop();
RoundRectangle2D bottom = obstacle.getBottom();
if (ball.intersects(top.getX(), top.getY(), top.getWidth(), top.getHeight()) || ball.intersects(bottom.getX(), bottom.getY(), bottom.getWidth(), bottom.getHeight())) {
collided = true;
}
}
}
return collided;
}
private Image loadBackgroundImage() {
Image background = null;
URL backgroundPath = getClass().getResource(BACKGROUND_URL);
if(backgroundPath == null) {
background = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB);
} else {
try {
background = ImageIO.read(backgroundPath);
} catch (IOException e) {
e.printStackTrace();
}
}
return background;
}
@Override
public void paintComponent(Graphics graphics) {
super.paintComponent(graphics);
Graphics2D g = (Graphics2D) graphics;
g.drawImage(background, 0, 0, null);
ball.paint(g);
for (Obstacle obstacle : obstacles)
obstacle.paint(g);
scoreLabel.paint(g);
messageLabel.paint(g);
}
//...
}
private void update() {
if (ballOutOfBounds() || playerCollidedWithObstacle()) {
endGame();
} else if (ballPassedObstacle()) {
addToScore();
setupNextObstacle();
}
updateBallPosition();
updateObstaclePositions();
}
private boolean playerCollidedWithObstacle() {
boolean collided = false;
if (ballAtObstacle()) {
for (Obstacle obstacle : obstacles) {
RoundRectangle2D top = obstacle.getTop();
RoundRectangle2D bottom = obstacle.getBottom();
if (ball.intersects(top.getX(), top.getY(), top.getWidth(), top.getHeight()) || ball.intersects(bottom.getX(), bottom.getY(), bottom.getWidth(), bottom.getHeight())) {
collided = true;
}
}
}
return collided;
}
public class GameLabel {
private String message;
private Font font;
private Color color;
private int x, y;
public GameLabel(String message, int x, int y, Color color, Font font) {
update(message, x, y, color, font);
}
public GameLabel(String message, int x, int y) {
this(message, x, y, Color.BLACK, new Font("Matura MT Script Capitals", Font.ROMAN_BASELINE, 20));
}
public GameLabel() {
this("", 0, 0);
}
public void setMessage(String message) {
this.message = message;
}
public void setX(int x) {
this.x = x;
}
public void setY(int y) {
this.y = y;
}
public void setColor(Color color) {
this.color = color;
}
public void setFont(Font font) {
this.font = font;
}
public final void update(String message, int x, int y, Color color, Font font) {
this.message = message;
this.x = x;
this.y = y;
this.color = color;
this.font = font;
}
public void update(String message, int x, int y) {
update(message, x, y, color, font);
}
public void update(String message) {
update(message, x, y);
}
public void paint(Graphics2D g) {
g.setFont(font);
g.setColor(color);
g.drawString(message, x, y);
}
public Font getFont() {
return font;
}
public Color getColor() {
return color;
}
public String getMessage() {
return message;
}
public int getX() {
return x;
}
public int getY() {
return y;
}
}
public class Obstacle {
public static final int DEFAULT_TOP_HEIGHT = 175;
public static final int DEFAULT_BOTTOM_HEIGHT = 175;
public static final int DEFAULT_WIDTH = 30;
public static final int DEFAULT_ARCH_WIDTH = 20;
public static final int DEFAULT_ARCH_HEIGHT = 20;
public static final int DEFAULT_TOP_INSET = -5;
public static final int DEFAULT_BOTTOM_INSET = TheGame.HEIGHT + 5;
private RoundRectangle2D top, bottom;
private BasicStroke stroke;
private GradientPaint gradient;
private int initialX, x, width;
public Obstacle(int x, int width, int topHeight, int bottomHeight) {
this.x = initialX = x;
this.width = width;
top = new RoundRectangle2D.Double(x, DEFAULT_TOP_INSET, width, topHeight, DEFAULT_ARCH_WIDTH, DEFAULT_ARCH_HEIGHT);
bottom = new RoundRectangle2D.Double(x, DEFAULT_BOTTOM_INSET-bottomHeight, width, bottomHeight, DEFAULT_ARCH_WIDTH, DEFAULT_ARCH_HEIGHT);
stroke = new BasicStroke(10, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL, 20.0f, new float[] { 10.0f }, 0.0f);
gradient = new GradientPaint(20, 0, Color.DARK_GRAY, 0, 10, Color.GRAY, true);
}
public Obstacle(int x, int topHeight, int bottomHeight) {
this(x, DEFAULT_WIDTH, topHeight, bottomHeight);
}
public void reset() {
x = initialX;
top.setRoundRect(initialX, top.getY(), top.getWidth(), top.getHeight(), top.getArcWidth(), top.getArcHeight());
bottom.setRoundRect(initialX, bottom.getY(), bottom.getWidth(), bottom.getHeight(), bottom.getArcWidth(), bottom.getArcHeight());
}
public Obstacle(int x, int width) {
this(x, width, DEFAULT_TOP_HEIGHT, DEFAULT_BOTTOM_HEIGHT);
}
public Obstacle(int x) {
this(x, DEFAULT_WIDTH);
}
public void moveToBack() {
x = 600;
}
public void moveForward() {
x -= 5;
top.setRoundRect(x, top.getY(), top.getWidth(), top.getHeight(), top.getArcWidth(), top.getArcHeight());
bottom.setRoundRect(x, bottom.getY(), bottom.getWidth(), bottom.getHeight(), bottom.getArcWidth(), bottom.getArcHeight());
}
public RoundRectangle2D getTop() {
return top;
}
public RoundRectangle2D getBottom() {
return bottom;
}
public int getX() {
return x;
}
public int getWidth() {
return width;
}
public void paint(Graphics2D g) {
g.setPaint(gradient);
g.setStroke(stroke);
g.fill(top);
g.fill(bottom);
}
}
public class Ball {
public static final int DEFAULT_DROP_SPEED = 7;
private Ellipse2D ball;
private GradientPaint gradient;
private int initialY, x, y, width = 30, height = 30, dropSpeed = DEFAULT_DROP_SPEED;
public Ball(int x, int y) {
this.x = x;
this.y = initialY = y;
width = height = 30;
ball = new Ellipse2D.Double(x, y, width, height);
gradient = new GradientPaint(30, 0, Color.BLACK, 0, 20, Color.GREEN, true);
}
public void reset() {
y = initialY;
updateBall();
}
public void jump() {
dropSpeed = DEFAULT_DROP_SPEED;
y -= 40;
updateBall();
}
public void fall() {
y += dropSpeed++;
updateBall();
}
private void updateBall() {
ball.setFrame(x, y, width, height);
}
public boolean intersects(double x, double y, double w, double h) {
return ball.intersects(x, y, w, h);
}
public int getX() {
return x;
}
public int getY() {
return y;
}
public int getWidth() {
return width;
}
public int getHeight() {
return width;
}
public void paint(Graphics2D g) {
g.setPaint(gradient);
g.fill(ball);
}
public void moveForward() {
x += 7;
}
}