问题描述
- 如何在PlanePanel里面实现小型敌机的下落，好混乱啊
-
package start;import javax.swing.ImageIcon;
import javax.swing.JFrame;public class StartFrame extends JFrame{
/**
*
*/
public int x;
public int y;
public static StartFrame startFrame;
private static final long serialVersionUID = 1L;public StartFrame(){
//设置窗体大小 this.setSize(400, 654); //设置窗口居中显示 //this.setLocationRelativeTo(null); this.setLocation(150, 50); //设置任务栏图标 this.setIconImage(new ImageIcon("image/icon.jpg").getImage()); //去掉窗体的自带边框 this.setUndecorated(true); StartPanel sp = new StartPanel(); this.add(sp); this.setVisible(true); //默认窗体可见 放在 this.add(sp);后面 //启动线程 Thread th = new Thread(sp); th.start();}
public static void main(String[] args) {startFrame = new StartFrame();}
}
package start;
import java.awt.Graphics;
import javax.swing.ImageIcon;
import javax.swing.JPanel;import enemy.Enemy;
import enemy.EnemyMoveThread;public class StartPanel extends JPanel implements Runnable {
/**
* 通过鼠标来控制MouseMontionListener
* 重写mouseMovie（） ——————测试语句
* 给面板添加监听器
* panel.addMouseMontionListener(面板)；
* 点关闭图标关闭
* 点击缩小图标
* 实现MouseListener接口
* 重写
*/
private static final long serialVersionUID = 1L;
int x;
StartPanel sp;
Enemy e;public void paint(Graphics g) { // TODO Auto-generated method stub super.paint(g); g.drawImage(new ImageIcon("image/startback.png").getImage(), 0, 0, this); g.drawImage(new ImageIcon("image/start_aircraft.png").getImage(), x,450, this); } public void run() { // TODO Auto-generated method stub while (true) { x++; try { Thread.sleep(10); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } if (x > 400) { // 隐藏StartFrame的窗体 StartFrame.startFrame.dispose(); /* * 获得左上角的坐标 int x = StartFrame.startFrame.getLocation().x;int y * = StartFrame.startFrame.getLocation().y; */ // 创建新的PlaneFrame窗口 new PlaneFrame(); break; } repaint(); } }}
package start;
import javax.swing.ImageIcon;
import javax.swing.JFrame;import enemy.Enemy;
import enemy.EnemyMoveThread;
/**- 当StartFrame的小飞机飞到最右边时，Start窗口隐藏(this.disapose()),显示新的窗口PlaneFrame
- 创建新的面板
封装低级Enemy xy score image speed isLive panel;
*/
public class PlaneFrame extends JFrame implements Runnable{
/*- */
PlanePanel pp;
Enemy e;
public static PlaneFrame planeFrame; //定义全局变量：可以在所有位置使用
private static final long serialVersionUID = 1L;
public PlaneFrame(){
this.setSize(400, 654);
//x y?this.setLocation(150,50);
this.setIconImage(new ImageIcon("image/icon.jpd").getImage());
this.setUndecorated(true);
pp = new PlanePanel(this);
this.add(pp);
pp.addMouseMotionListener(pp); //第一个pp代表面，，第二个pp代表监听器对象
//给面板添加监听器对象
pp.addMouseListener(pp);
EnemyMoveThread emt = new EnemyMoveThread(e);
emt.start();
this.setVisible(true);}
public static void main(String[] args) {planeFrame = new PlaneFrame();
}
public void run() {//如果英雄机存活，创建敌机
while(pp.hero_isLive){
//x, y, speed, icon, panel
/*
* Random r = new Random();
/
ImageIcon icon = new ImageIcon("image/shoot0_0.png");
//大类型的数据不能直接赋值给小类型的数据，需要强制性转换
int x = (int) (Math.random()(pp.getWidth()-icon.getIconWidth()));
int y = -icon.getIconHeight();
int speed = 10;//创建敌机 添加集合之中 Enemy e = new Enemy(x,y,speed,icon,pp); //将敌机添加到集合中 pp.vs.add(e); //给敌机绑定运动的线程 EnemyMoveThread th = new EnemyMoveThread(e); th.start(); try { Thread.sleep(10); } catch (InterruptedException e1) { // TODO Auto-generated catch block e1.printStackTrace(); }}
}}
- */
package start;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.util.Random;
import java.util.Vector;import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;import enemy.Enemy;
public class PlanePanel extends JPanel implements MouseListener,
MouseMotionListener {// 定义布尔类型isLive（存活） private boolean isLive = true; int x; int hero_x = 200; int hero_y = 500; boolean hero_isLive = true; PlaneFrame f; ImageIcon icon = new ImageIcon("Image/hero.png"); ImageIcon min = new ImageIcon("image/min.png"); // 定义一个集合存放敌机 // Vector集合避免线程异步的问题 线程安全的一个线程 public Vector<Enemy> vs = new Vector<Enemy>(); // 通 过 构造方法 传值 public PlanePanel(PlaneFrame planeFrame) { this.f = planeFrame; } public void paint(Graphics g) { // TODO Auto-generated method stub super.paint(g); g.drawImage(new ImageIcon("image/backmain.png").getImage(), 0, 0, this); g.drawImage(new ImageIcon("image/min.png").getImage(), 325, 3, this); g.drawImage(new ImageIcon("image/close.png").getImage(), 360, 3, this); g.drawImage(new ImageIcon("image/hero.png").getImage(), hero_x, hero_y, this); for(int i = 0;i<vs.size();i++){ Enemy e = vs.get(i); e.drawEnemy(g); } } public void mouseDragged(MouseEvent arg0) { // TODO Auto-generated method stub } public void mouseMoved(MouseEvent e) { // TODO Auto-generated method stub if (hero_isLive) { int x = e.getX(); // 得到鼠标的x坐标 int y = e.getY(); // 得到鼠标的y坐标 // 根据鼠标的坐标与英雄机的宽和高计算英雄机的坐标 hero_x = x - icon.getIconWidth() / 2; hero_y = y - icon.getIconHeight() / 2; if (hero_x <= 400 - 55 && hero_y >= 31 && hero_y <= 650 - 90 && hero_x >= -40) { this.repaint(); } } // } public void mouseClicked(MouseEvent e) { // TODO Auto-generated method stub int x = e.getX(); int y = e.getY(); if (x > 325 && x < 325 + min.getIconWidth() && y > 3 && y < min.getIconHeight()) { // 缩小窗体 f.setState(JFrame.ICONIFIED); } else if (x > 360 && x < 360 + 31 && y > 3 && y < 3 + 31) { System.exit(0); // } } public void mouseEntered(MouseEvent arg0) { // TODO Auto-generated method stub } public void mouseExited(MouseEvent arg0) { // TODO Auto-generated method stub } public void mousePressed(MouseEvent arg0) { // TODO Auto-generated method stub } public void mousePressed1(MouseEvent arg0) { // TODO Auto-generated method stub } public void mouseReleased(MouseEvent arg0) { // TODO Auto-generated method stub }}
package enemy;
import java.awt.Graphics;
import javax.swing.ImageIcon;
import start.PlanePanel;
public class Enemy {
int x;
int y;
int speed;
int score = 100;
ImageIcon icon;
boolean isLive = true;
PlanePanel panel;public Enemy(){ } public Enemy(int x, int y, int speed, ImageIcon icon, PlanePanel panel) { super(); this.x = x; this.y = y; this.speed = speed; this.icon = icon; this.panel = panel; } //画敌机的方法 public void drawEnemy(Graphics g){ if(isLive){ g.drawImage(icon.getImage(),x,y,panel); } } public void move(){ y += speed; //如果敌机飞出面板，删除该敌机，并且isLive设置成false if(y>panel.getHeight()){ isLive = false; panel.vs.remove(this); } panel.repaint(); }}
package enemy;
//封装敌机运动的线程类
public class EnemyMoveThread extends Thread {// 创建成员变量e Enemy e; public EnemyMoveThread(Enemy e) { this.e = e; } @Override public void run() { super.run(); while (e.isLive) { // e.move(); try { Thread.sleep(100); } catch (InterruptedException e1) { e1.printStackTrace(); } } }}
解决方案
解决方案二：
http://blog.sina.com.cn/s/blog_c26367dd0101u4nw.html
解决方案三：
上一个问题帮你回答了，你能先采纳了不。