graphicspanel.java#1.21

java编写的打鸟游戏

/*
 * GraphicsPanel.java
 *
 * Created on 2007年12月18日, 下午12:27
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package SBGameCore;

import graphics.Bird;
import graphics.Feather;
import java.awt.Cursor;
import java.awt.Font;
import java.awt.MediaTracker;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Toolkit;
import javax.swing.JPanel;
import sound.BGmusic;
import sound.Gun;
/**
 *
 * @author wusir
 */

public class GraphicsPanel extends JPanel implements Runnable,MouseListener{
    public Toolkit toolkit = null;
    public Image buffer = null ;	 // image buffer
    public Image backdrop = null ;      // background
    public Image bgimg  = null ;        // privouse background
    public Image[] birds = new Image[7];//birds images
    public Image[] deadbirds = new Image[7];//dead birds image
    public Image cursor = null;           //cursor
    public Graphics  buf_g = null ;     // graphics buffer
    public Graphics  bkd_g = null ;     // background graphics
    public Dimension window_size = null;//windows size
    public Font font ;
    public Font font_s ;                //word fonts
    
    MediaTracker tracker = null ;
    
    public Thread game = null;          //game thread
    public boolean game_over = false;
    public Point mouse = null;           //mouse position
    public Rectangle paint_area = new Rectangle() ; //object's current area
    public Rectangle new_area   = new Rectangle() ; //object's new area
    
    public Vector Vbird = new Vector();  //bird vector
    public int Nbird = 7;                //count of bird
    private Point clickPoint=null;
    private Gun gunSound = null;
    private BGmusic bgSound = null;
    public int score = 0;
    public Graphics g2d;
    
    public GraphicsPanel(){
        this.setSize(1000,700);
        init();
    }
    public void init(){
        tracker = new MediaTracker(this) ;
        toolkit = Toolkit.getDefaultToolkit();
        bgimg = toolkit.getImage("image/123.JPG");
        tracker.addImage(bgimg,0) ;
        for(int i=0;i<7;i++){
            birds[i] = toolkit.getImage("image/"+i+".gif");
            tracker.addImage(birds[i],0) ;
        }
        for(int i=0;i<7;i++){
            deadbirds[i] = toolkit.getImage("image/d"+i+".gif");
            tracker.addImage(deadbirds[i],0) ;
        }
        cursor = toolkit.getImage("image/aim.jpg");
        tracker.addImage(cursor,0) ;
        try {
            tracker.waitForAll();
        } catch (InterruptedException ex) {
            ex.printStackTrace();
        }
        gunSound = new Gun();
        bgSound = new BGmusic();
        clickPoint = new Point();
        font   = new Font("Helvetica", Font.BOLD, 24) ;
        font_s = new Font("Helvetica", Font.BOLD, 14) ;
        addMouseListener(this);
        
    }
    public void Start(){
        // setCursor(toolkit.createCustomCursor(cursor,new Point(0,0),"sight")) ; //set the cursor here
        window_size=this.size();//get the panel size
        buffer = null;
        buffer = createImage(window_size.width, window_size.height);
        backdrop = null;
        backdrop = createImage(window_size.width, window_size.height);
        buf_g = buffer.getGraphics();
        buf_g.fillRect(0, 0, window_size.width, window_size.height);
        game_over = true ;
        bgSound.loop();

    }
    public void paintComponent(Graphics g) {
        
        //draw the panel with the graphics from buffer
        super.paintComponent(g);
        g2d = g;
        g2d.drawImage(buffer,0,0,this);
        
    }
    
    public int stop() {
        if(game!=null){
            game.stop();
            game = null;
        }
        setCursor(Cursor.getDefaultCursor()) ;
        return score;
    }
    
    
    public void run() {
        Bird bird;
        Feather feather;
        Point point;
        long time = 0;
        long Time = 0;
        long count = 0;
        buf_g = backdrop.getGraphics();
        buf_g.drawImage(bgimg,0,0,window_size.width,window_size.height,this) ;
        buf_g = getGraphics();
        buf_g.drawImage(backdrop,0,0,this) ;
        
        
        buf_g = buffer.getGraphics();
        buf_g.drawImage(bgimg,0,0,window_size.width,window_size.height,this) ;
        
        repaint() ;
        
        display_score() ;
        Time = System.currentTimeMillis() ;
        while(true){
            time = System.currentTimeMillis() ;
            if ((Vbird.size() < Nbird)&&(System.currentTimeMillis()-Time>1000)){//&& (Math.random() > (Vbird.size() == 0 ? 0.90 : 0.98))) {
                bird = new Bird(this);
                point = bird.getPoint();
                //if (score > 10 && Math.random() > 0.7) ;速度控制
                
                Vbird.add(bird);
                Time = System.currentTimeMillis() ;
            }
            
            for(int i=0;i<Vbird.size();i++){
                bird = (Bird)Vbird.elementAt(i);
                bird.move();
            }
            for (int i=(Vbird.size()-1); i >=0 ; --i) {
                bird = (Bird) Vbird.elementAt(i);
                if(clickPoint.x!=-500&&(clickPoint.x>(bird.getPoint().x-50))&&(clickPoint.x<(bird.getPoint().x+50))&&(clickPoint.y<(bird.getPoint().y+50))&&(clickPoint.y>(bird.getPoint().y-50))){
                    score += bird.getScore();
                    display_score();
                    bird.changeToDeadImage();
                    bird.active(false);
                }
                if((bird.getFace()==-1&&bird.getPoint().x<=-100)||(bird.getFace()==1&&bird.getPoint().x>=1100)){
                    bird.reset();
                }
                bird.draw();
            }
            clickPoint.x = -500;
            time = System.currentTimeMillis() - time ;
            time = 20 - time;
            time = time > 0 ?  10 + time : 10 ;
            Thread.yield();
            try {
                Thread.sleep(time);
            } catch (InterruptedException ex) {}
            if((count = ++count % 100)==0)
                repaint();
        }
    }
    
    public void display_score() {
        Graphics bkd_g = backdrop.getGraphics();
        bkd_g.clipRect(window_size.width/2, 0, window_size.width/2, 40);
        bkd_g.drawImage(bgimg,0,0,window_size.width,window_size.height,this) ;
        
        bkd_g.setColor(Color.red) ;
        bkd_g.setFont(font) ;
        String aux = score > 9 ? "" : "0" ;
        bkd_g.drawString(aux+score, window_size.width - 60,30) ;
        bkd_g.dispose() ;
        
        Graphics bg = buffer.getGraphics() ;
        bg.clipRect(0, 0, window_size.width, 40);
        bg.drawImage(backdrop,0,0,this) ;
        bg.dispose() ;
        
        Graphics g = getGraphics() ;
        g.clipRect(0, 0, window_size.width, 40);
        g.drawImage(buffer,0,0,this) ;
        g.dispose() ;
    }
    
    public void mouseClicked(MouseEvent e) {
        
    }
    
    public void mousePressed(MouseEvent e) {
        
        clickPoint.x = e.getX();//+25;
        clickPoint.y = 650-e.getY();//+25;
        // System.out.println("clicked:  "+clickPoint.x+","+clickPoint.y);
        gunSound.play();
    }
    
    public void mouseReleased(MouseEvent e) {
    }
    
    public void mouseEntered(MouseEvent e) {
    }
    
    public void mouseExited(MouseEvent e) {
    }
}