package greenfoot;

public class UserInfoVisitor
{       
private static UserInfo myInfo;
    
   
   public static UserInfo allocate(String userName, int rank, String singletonUserName)
   {
      if (singletonUserName != null && singletonUserName.equals(userName))
       {
         if (myInfo != null && myInfo.getUserName().equals(singletonUserName))
           {
            myInfo.setRank(rank);             
            }
           

         else
           {                
            myInfo = new UserInfo(userName, rank);             
            }
           
         return myInfo;         
         }
       

      else
       {            
         return new UserInfo(userName, rank);         
         }     
      }
    
   
   public static GreenfootImage readImage(byte[] imageFileContents)
   {        
      return new GreenfootImage(imageFileContents);     
      } 
   }