这期内容当中小编将会给大家带来有关在JAVA项目中使用Frame实现背景图连续滚动,文章内容丰富且以专业的角度为大家分析和叙述,阅读完这篇文章希望大家可以有所收获。
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代码如下:
import Java.awt.Graphics; import java.awt.Image; import javax.swing.ImageIcon; import mine.game.util.PropertiesUtil; @SuppressWarnings("serial") public class GameFrame extends MyFrame{ private Image img=ImageUtil.imageLoad("image/bk.jpg"); double movs,speed=1,headmovs; double pWidth,pHeight,bgWidth; @Override public void paint(Graphics g) { //g.drawImage(img, 0, 0, null); //=================================================== pWidth=PropertiesUtil.getValue("Width", "game.properties"); pHeight=PropertiesUtil.getValue("Height", "game.properties"); bgWidth=new ImageIcon(img).getIconWidth(); //movs+=speed; if(bgWidth>pWidth+movs){ g.drawImage(img, 0, 0, (int)pWidth,(int)pHeight, (int)movs, 0, (int)(pWidth+movs), (int)pHeight, null); } if(bgWidth<=pWidth+movs){ headmovs=pWidth+movs-bgWidth; g.drawImage(img, 0, 0, (int)(pWidth-headmovs),(int)pHeight, (int)movs, 0, (int)(bgWidth), (int)pHeight, null); g.drawImage(img,(int)(pWidth-headmovs), 0, (int)pWidth,(int)pHeight, 0, 0, (int)(headmovs), (int)pHeight, null); if(headmovs>=pWidth){ //重新初始化所有变量数据,循环 movs=headmovs-pWidth; } } movs+=speed; //=================================================== } public static void main(String[] args) { GameFrame gf=new GameFrame(); gf.launchFrame(); } } //================================= import java.awt.Frame; import java.awt.Graphics; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.image.BufferedImage; import mine.game.util.PropertiesUtil; @SuppressWarnings("serial") public class MyFrame extends Frame{ private BufferedImage imgBuffer; private Graphics gBuffer; public void launchFrame(){ int wd=800;//PropertiesUtil.getValue("Width", "game.properties"); int ht=600;//PropertiesUtil.getValue("Height", "game.properties"); setSize(wd,ht); setLocation(0, 0); setVisible(true); new PaintThread().start(); addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { System.exit(0); } }); } //重画窗口线程,内部类 class PaintThread extends Thread{ public void run(){ while(true){ repaint(); try { Thread.sleep(10); } catch (InterruptedException e) { e.printStackTrace(); } } } } /** * 双缓冲解决,屏闪.此方法在,继承Frame的AWT编程中才有效。JFram不凑效,其有自己先进的实现方式(自己猜的,有时间学学) */ @Override public void update(Graphics g) { if(imgBuffer==null){ imgBuffer=(BufferedImage)createImage(this.getWidth(),this.getSize().height);//创建图形缓冲 //imgBuffer=new BufferedImage((int)this.getSize().getWidth(),(int)this.getSize().getHeight(),BufferedImage.TYPE_4BYTE_ABGR);//创建图形缓冲 } gBuffer=imgBuffer.getGraphics();//获取图形缓冲区的图形上下文 gBuffer.fillRect(0, 0, this.getWidth(), this.getHeight()); this.paint(gBuffer);//用paint方法中编写的绘图过程对图形缓冲区绘图 gBuffer.dispose();//释放图形上下文资源 g.drawImage(imgBuffer, 0, 0, null);//将图形缓冲区绘制到屏幕上 } } //==================== import java.awt.Image; import java.awt.Toolkit; import java.NET.URL; public class ImageUtil { public static Image imageLoad(String path){ URL u=ImageUtil.class.getClassLoader().getResource(path); return Toolkit.getDefaultToolkit().getImage(u); } }
上述就是小编为大家分享的在JAVA项目中使用Frame实现背景图连续滚动了,如果刚好有类似的疑惑,不妨参照上述分析进行理解。如果想知道更多相关知识,欢迎关注创新互联行业资讯频道。