bullet.java~3~

来自「一款益智类的手机游戏」· JAVA~3~ 代码 · 共 75 行

package twplanegame;

import javax.microedition.lcdui.*;

class Bullet extends PlaneGameObject
{
        private int XSpeed;
        private int YSpeed;

    //constructor
    public Bullet(int id)
    {
            super(id,0,0);
            switch (id)
            {
                    case 0:   //my bullet
                              try
                        {
                                       ObjImage = Image.createImage("/MyPlane.png");
                        }
                        catch (Exception e)
                        {
                                  ObjImage = null;
                        }
                        XSpeed = 10;
                        YSpeed = 0;
                        break;
                case 1:   //enemy plane bullet
                         try
                         {
                                 ObjImage = Image.createImage("/MyPlane.png");
                        }
                        catch (Exception e)
                        {
                                  ObjImage = null;
                        }
                        XSpeed = 3;
                        YSpeed = 3;
                        break;
                case 2:
                        try
                        {
                                  ObjImage = Image.createImage("/MyPlane.png");
                        }
                        catch(Exception e)
                        {
                                ObjImage = null;
                        }
                        XSpeed = 2;
                        YSpeed = 2;
                        break;
        }
        int width = ObjImage.getWidth();
        int height = ObjImage.getHeight();
        int radius = width<height?width:height;
        SetImageSize(width,height,radius);
    }

    public void SetSpeed(int x,int y)
    {
            XSpeed = x;
            YSpeed = y;
    }

    public int GetXSpeed()
    {
            return XSpeed;
    }
    public int GetYSpeed()
    {
            return YSpeed;
    }

}