ccpubomb.java

J2ME写的一个潜艇大战游戏!!!!!!!!!

/*
 * CCpuBomb.java
 *
 * Created on 2006年4月16日, 下午2:43
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */
package gamepacket;

import java.io.*;
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.*;
/**
 *
 * @author zxh
 */
public class CCpuBomb
{
    //敌人炸弹图
    public Sprite spt_cpubomb;
    
    private boolean IsShow;//炸弹是否已经发射
    private int dx,dy;
    private int Speed;//速度
    
    private int width,height;//屏幕大小
    
    /** Creates a new instance of CCpuBomb */
    public CCpuBomb (int scrWidth,int scrHeight,LayerManager lm)
    {
	
	Speed=1;//初始速度1
	IsShow=false;
	width=scrWidth;
	height=scrHeight;
	
		try
		{
		    spt_cpubomb=new Sprite(Image.createImage ("/img/cpubomb.png"));//敌人炸弹
		} catch (IOException ex){}
		
		
		lm.append (spt_cpubomb);
		spt_cpubomb.setVisible (false);
    }

    public void Move ()//
    {
	if(IsShow==true)
	{dy-=Speed;//向下移动
	 spt_cpubomb.setVisible (true);
	 spt_cpubomb.setPosition (this.dx,this.dy);
	}
	if(dy<80)
	{
	    IsShow=false;
	    spt_cpubomb.setVisible (false);//炸弹不可见
	}
    }

    
    
    
    public boolean IsOver(CPlayerShip playership)
    {
	//碰撞检测
	if(spt_cpubomb.collidesWith (playership.spt_playership,true))
	{
	    spt_cpubomb.setVisible (false);//炸弹图片不可见
	    this.IsShow=false;//炸弹不可见
	    return true;
	}
	else
	{
	    return false;
	}
    }
    
    
    public void SetPoint(int x,int y)
    {
	dx=x;
	dy=y;
    }
    
    public void SetShow(boolean show)
    {
	IsShow=show;
    }
    
    public boolean GetShow()
    {
	return IsShow;
    }
    
    

}