fishsprite.java

J2ME编程的50个例子,适合掌上系统的编程

package demo;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.Sprite;


public class FishSprite extends Sprite{
	private String m_strText;
	public FishSprite( Image image, int frameWidth, int frameHeight){
		super(image, frameWidth, frameHeight);		
		defineReferencePixel(frameWidth / 2, frameHeight / 2);
	}
	//让小鱼开始移动
	//参数text是小鱼携带的文字信息,x,y则是小鱼的初始位置
	public void StartMove( String text, int x, int y ){
		m_strText = text;
		setRefPixelPosition(x,y);
	}
	//产生小鱼游动的动画
	public void Logic(){
		if( getFrame() == 0 )
			setFrame(1);
		else
			setFrame(0);
			int x = getRefPixelX() - 2;
			setRefPixelPosition(x, getRefPixelY());
	}
	//显示小鱼及文字信息
	public void PaintWithText(Graphics g){
		paint(g);
		g.drawString(m_strText, getX()+getWidth()+2, getY(), 0);
	}
}