players.java

一个java的游戏程序

import java.util.*;

class Players 
    extends Observable
{
    private Player _player[];
    private int _last;
    private int _current;
    private int _max;

    public Players()
    {
	_max = 4;
	_last = 0;
	_current = -1;
	_player = new Player[_max];
    }

    public void setCurrent(int current)
    {
	_current = current;
	setChanged();
	notifyObservers();
    }

    public void next()
    {
	setCurrent((_current + 1) % _last);
    }

    public Player getCurrent()
    {
	if(_current == -1)
	    return null;
	else
	    return _player[_current];
    }

    public void add(Player game)
    {
	if(_last < _max) 
	    {
		_player[_last++] = game;
	    }
    }

    public Player select(String name)
    {
	int i;
	for(i = 0; i < _max; i++)
	    {
		if(_player[i] != null && name.equals(_player[i].getName()))
		    {
			setCurrent(i);
			return getCurrent();
		    }
	    }
	return null;
    }

}