positionvector.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.util;

// $Id: PositionVector.java,v 1.2 1999/08/13 01:20:43 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 java.util.Vector;

/**
  * It is common enough to have vectors of Position objects that this is
  * worthwhile.  This doesn't attempt to be a general subclass of Vector;
  * it only implements the methods I need for Ergo.
  */
public class PositionVector {
  Vector p;

  public PositionVector() { p = new Vector(); }
  public PositionVector(int a) { p = new Vector(a); }
  public PositionVector(int a, int b) { p = new Vector(a, b); }

  public Position elementAt(int index) {
    return (Position) p.elementAt(index);
  }

  public int size() { return p.size(); }

  public void setSize(int n) { p.setSize(n); }

  public void addElement(Position pos) {
    p.addElement(pos);
  }

  public void removeElementAt(int index) {
    p.removeElementAt(index);
  }

  public boolean isMember(Position p) {
    for (int i = 0; i < size(); i++)
      if (elementAt(i).equals(p))
	return true;
    return false;
  }

  public boolean isMember(int row, int col) {
    for (int i = 0; i < size(); i++) {
      Position p = elementAt(i);
      if (p.row == row && p.column == col)
	return true;
    }
    return false;
  }

  public String toString() {
    StringBuffer s = new StringBuffer();
    for (int i = 0; i < p.size(); i++) {
      s.append(elementAt(i));
      s.append(" "); }
    return s.toString();
  }
}