rank.java

ErGo是一个很早的Java通用围棋服务器(IGS/NNGS)客户端程序。有全部源码和文档

package ergo.server;

// $Id: Rank.java,v 1.2 1999/08/13 01:18:10 sigue Exp $

/*
 *  Copyright (C) 1999  Carl L. Gay and Antranig M. Basman.
 *  See the file copyright.txt, distributed with this software,
 *  for further information.
 */

import ergo.*;
import ergo.util.*;
import ergo.logic.*;
import ergo.server.*;

public class Rank {
  public static final int KYU = 0;
  public static final int ADAN = 1;
  public static final int PDAN = 2;
  public static final int NR = -1;
  public static final int QQ = -2;
  private int numeric;
  private int type;
  private boolean star;
  public int compareTo (Rank other) {	// positive for ascending order...
    if (numeric < other.numeric) return 1;
    else if (numeric == other.numeric) return 0;
    else return -1;
  }
  public Rank (String s) throws ParseException {
    if (s.equals("??")) {
      type = QQ;
      numeric = 0;
    }
    else if (s.equals("NR")) {
      type = NR;
      numeric = 1;
    }
    else {
      char finalc;
      int number;
      try {
        finalc = s.charAt(s.length() - 1);
        String left;
        if (finalc == '*') {
          star = true;
          finalc = s.charAt(s.length() - 2);
          left = s.substring(0, s.length() - 2);
	}
        else {
          finalc = s.charAt(s.length() - 1);
          left = s.substring(0, s.length() - 1);
	}
	//        System.out.println("Left "+left);
        number = Integer.parseInt(left);
      }
      catch (Exception e) {
        Debug.backtrace(e);
        throw new ParseException("Illegal rank format - last character not found " + s);
      }
      switch(finalc) {
      case 'k':
	type = KYU;
	numeric = 32 - number;
	break;
      case 'd':
	type = ADAN;
	numeric = 31 + number;
	break;
      case 'p':
	type = PDAN;
	numeric = 40 + number;
	break;
      default:
	throw new ParseException("Illegal rank format - illegal final character " + s);
      }				// end switch
    }				// end if numeric rank          
  }				// end constructor
  private String sstar () {
    return star ? "*" : "";
  }
  public String render() {
    switch(type) {
    case QQ:
      return "??";
    case NR:
      return "NR";
    case KYU:
      return Integer.toString(32 - numeric) + "k" + sstar();
    case ADAN:
      return Integer.toString(numeric - 31) + "d" + sstar();
    case PDAN:
      return Integer.toString(numeric - 40) + "p" + sstar();
    default:
      return null;
    } 
  }
}