drawmesg.java

一个经典的射击游戏

package seconds;

import javax.microedition.lcdui.game.Sprite;
import javax.microedition.lcdui.*;//要用到graphics 
public class DrawMesg extends Sprite {
	private Graphics g;
	public DrawMesg(Image img,Graphics g)
	{
		super(img,img.getWidth(),img.getHeight());
		this.g=g;
		this.setFrame(0);
		this.setPosition(10,10);
		this.paint(g);
		
		
	}
	//完成子弹个数的绘制
	public void drawNum(int num)
	{
		g.setColor(0xff0000);
		g.drawString(new Integer(num).toString(), this.getX()+this.getWidth()/3,this.getY()+this.getHeight()/3+this.getHeight(),0);
	}
	//完成子时间的绘制
	public void drawTime(int num,int length)
	{
	    String tempStr=String.valueOf(num);
	    while(tempStr.length()<length)
	    {
	    	tempStr=0+tempStr;
	    }
	    g.setColor(0xff0000);
	    g.drawString(tempStr,this.getX()+this.getWidth()/3,this.getY()+this.getHeight()/3,0);
	}

}