traveler.java

模拟火星探测器火星漫步的小程序（JAVA编写）

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package marstraveler;
import    java.io.*;   
import    java.util.*;   
/**
 *
 * @author Administrator
 */

public class Traveler{
    public Site location; //x,y坐标
    public Site max;//高原右上角坐标
    Traveler(int Mx,int My)
    {
        max=new Site(Mx,My);
        location=new Site(0,0);
    }
    public void getInfor()
    {
        System.out.println("目前探测器的位置为："+location.x+","+location.y);
    }
    public void set(int x,int y)
    {
        location.x=x;   //赋值方位
        location.y=y;
    }
    public int moveSet(String path,String dir)
    { 
           String a=new String();
           try{
           StringTokenizer t=new  StringTokenizer(path," ");//"|"为分隔
           while(true)
            {
                a=t.nextToken();
                if(a.equals("L"))
                {
                    if(dir.equals("N"))
                    {
                        dir="W";
                        continue;
                     }
                     if(dir.equals("E"))
                     {
                          dir="N";
                          continue;
                      }
                      if(dir.equals("S"))
                      {
                           dir="E";
                           continue;
                       }
                       if(dir.equals("W"))
                       {
                            dir="S";
                            continue;
                        }
                  }
                  if(a.equals("R"))
                   {
                        if(dir.equals("N"))
                        {
                             dir="E";
                             continue;
                        }
                         if(dir.equals("E"))
                         {
                              dir="S";
                              continue;
                         }
                          if(dir.equals("S"))
                         {
                                dir="W";
                                continue;
                          }
                          if(dir.equals("W"))
                          {        
                                 dir="N";
                                 continue;
                           }
                      }
                      if(a.equals("M"))
                      {
                          int mid=0;
                                 if(dir.equals("N"))
                                 {
                                     if((mid=this.location.y+1)>max.y)
                                     {
                                         System.out.println("错误：探测器移动出了有效范围！！");
                                         return 1;

                                     }
                                     this.location.y++;
                                 }
                                 if(dir.equals("E"))
                                 {
                                     if((mid=this.location.x+1)>max.x)
                                     {
                                         System.out.println("错误：探测器移动出了有效范围！！");
                                         return 1;
                                     }
                                     this.location.x++;
                                 }
                                 if(dir.equals("S"))
                                 {
                                     if((mid=this.location.y-1)<0)
                                     {
                                         System.out.println("错误：探测器移动出了有效范围！！");
                                         return 1;
                                     }
                                      this.location.y--;
                                 }
                                 if(dir.equals("W"))
                                 {
                                     if((mid=this.location.x-1)<0)
                                     {
                                         System.out.println("错误：探测器移动出了有效范围！！");
                                         return 1;
                                     }
                                      this.location.x--;
                                 }
                       }
           }
           }
           catch(Exception e)
           {
               return 0;
           }
    }
        /*try
       {
              String mid=new String();
              while(true)
              {
                  if(path.nextToken()=="L")
                  {
                      while(path.nextToken()=="M")
                        
                  }
              }
        
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }*/
    
    public String siteInitial(String s)
    {   
        
        int x=0;
        int y=0;
        String dir=new String();  //方向
        StringTokenizer t=new  StringTokenizer(s," ");//"|"为分隔
        x=Integer.parseInt(t.nextToken());
        y=Integer.parseInt(t.nextToken());
        if(x>max.x||y>max.y||x<0||y<0)
        {
            System.out.print("初始坐标越界！系统默认");
            return("error");
        }
        else
        {
            set(x,y);                   //set初始位置
            dir=t.nextToken();
            return dir;
        }
    }
    /*
     
                 if(time==2)
                 {
                     StringTokenizer t1=new  StringTokenizer(s," ");//" "为分隔
                     moveSet(t1,dir);
                     move=1;
                    
                     
                                
                 }
            }
        }
        catch(Exception e)
        {
        }
    } */
}