bullet.java

手机RPG游戏

package obj;
import javax.microedition.lcdui.*;
import main.*;
public class Bullet {
   protected int xSpeed=0;
   protected int ySpeed=0;
   protected int xPos=0;
   protected int yPos=0;
   protected boolean alive=true;
   protected int screenW=0;//屏幕的宽高
   protected int screenH=0;
   protected Image img;
   public int imgW;
   public int imgH;
   public Bullet(int xp,int yp,int xs,int ys,int sw,int sh) {
     xPos=xp;//坐标
     yPos=yp;
     xSpeed=xs;//速度
     ySpeed=ys;
     screenW=sw;//
     screenH=sh;
   img=Cntrl.load.mybulletImg[Cntrl.load.myBulletId];
   imgW=img.getWidth();
   imgH=img.getHeight();
   }
   public void DrawSelf(Graphics g){
     g.drawImage(img,xPos,yPos,Graphics.LEFT|Graphics.TOP);
   }
   public void Move(){
     xPos+=2*xSpeed;
     yPos+=2*ySpeed;
   }
   public boolean getAlive(){
     return alive&&xPos<screenW+(xPos)&&yPos>0&&yPos<screenH;
   }
  public int getXPos() {
    return xPos;
  }
  public int getYPos() {
    return yPos;
  }












}