我正在做一個遊戲。該項目中有3個不同的文件,其中有一個名爲Dude,Frame和Board的文件。那麼任何人都可以幫助我?代碼: 董事會代碼:
package Ourgame;爲什麼我的JPanel或JFrame不會顯示?
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
public class Board extends JPanel implements ActionListener{
Dude p;
Image img;
Timer time;
public Board() {
p = new Dude();
addKeyListener(new AL());
setFocusable(true);
ImageIcon i = new ImageIcon("/Users/appleuser/Desktop");
img = i.getImage();
time = new Timer(5, this);
time.start();
}
public void actionPerformed(ActionEvent e) {
p.move();
repaint();
}
public void paint(Graphics g) {
super.paint(g);
Graphics2D g2d = (Graphics2D) g;
g2d.drawImage(img, 0, 0, null);
g2d.drawImage(p.getImage(), p.getX(), p.getY(), null);
}
private class AL extends KeyAdapter {
public void keyReleased(KeyEvent e) {
p.keyReleased(e);
}
public void keyPressed(KeyEvent e) {
p.keyPressed(e);
}
}
}
代碼爲多德:
package Ourgame;
import java.awt.Image;
import java.awt.event.KeyEvent;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
public class Dude {
int x, dx, y;
Image still;
public Dude() {
ImageIcon i = new ImageIcon("/Users/appleuser/Desktop/the man.bmp");
still = i.getImage();
x = 10;
y = 172;
}
public void move() {
x = x + dx;
}
public int getX() {
return x;
}
public int getY() {
return y;
}
public Image getImage() {
return still;
}
public void keyPressed(KeyEvent e) {
int key = e.getKeyCode();
if(key == KeyEvent.VK_LEFT);
dx = -1;
if(key == KeyEvent.VK_RIGHT)
dx = 1;
}
public void keyReleased(KeyEvent e) {
int key = e.getKeyCode();
if(key == KeyEvent.VK_LEFT);
dx = 0;
if(key == KeyEvent.VK_RIGHT)
dx = 0;
}
}
幀代碼:
package Ourgame;
import javax.swing.JFrame;
public class Frame {
public static void main(String[] args){
JFrame frame = new JFrame("2D game");
frame.add(new Board());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(1200, 365);
frame.setVisible(true);
}
}
謝謝:)
你爲什麼要加載桌面上的一個形象? – Obicere
這個終端分號會讓你搞不清楚:'if(key == KeyEvent.VK_LEFT);'。在整個代碼中擺脫這個和類似的分號。始終將**所有**代碼塊放在花括號內,即使是單行塊。 –
另外,調試您的圖像路徑。你最好把它們作爲資源而不是文件。還可以使用調試器來確定問題出在哪裏,併發布有關程序遇到的問題的更詳細說明。 –