dialsprite.java

来自「J2ME编程的50个例子,适合掌上系统的编程」· Java 代码 · 共 31 行

package demo;

import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.Sprite;

//股子对象
public class DialSprite extends Sprite{
	private boolean m_bStart;						//转动的标志
	public DialSprite( Image image, int frameWidth, int frameHeight){
		super(image, frameWidth, frameHeight);		
		defineReferencePixel(frameWidth / 2, frameHeight / 2);
		m_bStart = true;
	}
	public void Start(){							//开始转动
		m_bStart = true;
	}
	public void Stop(){							//停止转动
		m_bStart = false;
	}
	public void Logic(){
		if( m_bStart ){
			//转动
			int n = getFrame();
			n ++;
			if( n >= getFrameSequenceLength() )
				n = 0;
			setFrame(n);
		}
	}
}