package?com.angsi.demo;

import?java.awt.Graphics2D;
import?java.awt.Image;
import?java.awt.Toolkit;
import?java.awt.image.ImageObserver;

public?class?Bg?{
	
	private?int?width;
	
	private?int?height;
	
	private?Image?bgframe[];
	
	private?int?x1;
	
	private?int?x2;
	
	private?int?y?=?0;
	
	private?int?speed?=?2;
	
	public?Bg（int?width?int?height）{
		
		bgframe?=?new?Image[2];
		
		bgframe[0]?=?Toolkit.getDefaultToolkit（）.getImage（“res/bg.png“）;
		bgframe[1]?=?Toolkit.getDefaultToolkit（）.getImage（“res/bg.png“）;
		
		this.width?=?width;
		
		this.height?=?height;
		
		x1?=?0;
		
		x2?=?x1?+?width;
	}
	
	public?void?draw（Graphics2D?g2d?ImageObserver?observer）{
		
		?g2d.drawImage（bgframe[0]?x1?y?width?height?observer）;
		?g2d.drawImage（bgframe[1]?x2?y?width?height?observer）;
	}
	
	public?void?logic（）{
		
		x1-=speed;
		x2-=speed;
		
		if（x2?==?0）{
			
			x1?=?x2+width;
		}
		
		if（x1?==?0）{
			x2?=?x1?+?width;
		}
		
		
	}
	
	

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-08-22?16:20??FlyBird\
?????文件?????????302??2018-08-22?16:08??FlyBird\.classpath
?????文件?????????383??2018-08-22?16:08??FlyBird\.project
?????目錄???????????0??2018-08-22?16:08??FlyBird\.settings\
?????文件?????????598??2018-08-22?16:08??FlyBird\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2018-08-22?16:08??FlyBird\bin\
?????目錄???????????0??2018-08-22?16:08??FlyBird\bin\com\
?????目錄???????????0??2018-08-22?16:08??FlyBird\bin\com\angsi\
?????目錄???????????0??2018-08-22?17:33??FlyBird\bin\com\angsi\demo\
?????文件????????1333??2018-08-22?18:03??FlyBird\bin\com\angsi\demo\Bg.class
?????文件????????2837??2018-08-22?18:03??FlyBird\bin\com\angsi\demo\Bird.class
?????文件????????1115??2018-08-22?17:29??FlyBird\bin\com\angsi\demo\Birdframe.class
?????文件?????????420??2018-08-22?17:41??FlyBird\bin\com\angsi\demo\GlobalUtil.class
?????文件?????????430??2018-08-22?16:12??FlyBird\bin\com\angsi\demo\Main.class
?????文件????????3879??2018-08-22?18:00??FlyBird\bin\com\angsi\demo\MainGame.class
?????文件????????2402??2018-08-22?18:04??FlyBird\bin\com\angsi\demo\Pipe.class
?????文件????????1780??2018-08-22?17:54??FlyBird\bin\com\angsi\demo\Score.class
?????目錄???????????0??2018-08-22?17:33??FlyBird\res\
?????文件???????24946??2018-08-22?14:35??FlyBird\res\bg.png
?????文件?????????786??2018-08-22?14:35??FlyBird\res\bird1.png
?????文件?????????766??2018-08-22?14:35??FlyBird\res\bird2.png
?????文件?????????790??2018-08-22?14:35??FlyBird\res\bird3.png
?????文件????????1931??2018-08-22?14:35??FlyBird\res\land.png
?????文件???????22037??2018-08-22?14:35??FlyBird\res\pipe_down.png
?????文件???????22234??2018-08-22?14:35??FlyBird\res\pipe_up.png
?????文件?????????508??2018-08-22?14:35??FlyBird\res\score0.png
?????文件?????????453??2018-08-22?14:35??FlyBird\res\score1.png
?????文件?????????432??2018-08-22?14:35??FlyBird\res\score2.png
?????文件?????????432??2018-08-22?14:35??FlyBird\res\score3.png
?????文件?????????533??2018-08-22?14:35??FlyBird\res\score4.png
?????文件?????????432??2018-08-22?14:35??FlyBird\res\score5.png
............此處省略16個文件信息