RetroShare/plugins/qcheckers_plugin/humanplayer.cc

/***************************************************************************
 *   Copyright (C) 2004-2005 Artur Wiebe                                   *
 *   wibix@gmx.de                                                          *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#include <QDebug>

#include "humanplayer.h"
#include "rcheckers.h"
#include "echeckers.h"
#include "pdn.h"


myHumanPlayer::myHumanPlayer(const QString& name, bool white,
	bool second_player)
    : myPlayer(name, white)
{
    selected = false;

    m_second = second_player;
    m_game = 0;
}


myHumanPlayer::~myHumanPlayer()
{
}


void myHumanPlayer::yourTurn(const Checkers* g)
{
    if(!m_game || m_game->type()!=g->type()) {
	delete m_game;
	if(g->type()==RUSSIAN)
	    m_game = new RCheckers();
	else
	    m_game = new ECheckers();
    }

    // synchronize
    m_game->fromString(g->toString(m_second));
}


bool myHumanPlayer::fieldClicked(int field_num, bool* select, QString& errmsg)
{
    if(m_second)
	field_num = 31 - field_num;

    switch(m_game->item(field_num)) {
    case MAN1:
    case KING1:
	if(m_game->checkCapture1() && !m_game->canCapture1(field_num)) {
	    errmsg = tr("You must capture.");	//TODO better text.
	    return false;
	}
	if(!m_game->canCapture1(field_num) && !m_game->canMove1(field_num)) {
	    errmsg = tr("Cannot move this.");	//TODO better text.
	    return false;
	}

        // Player (re)selects
	from = field_num;
    	fromField = field_num;
	selected = true;
	*select = true;
	return true;
	break;

    case FREE:
        if(!selected)
	    return true;

        if(!go(field_num))
	    return false;	// incorrect course

	// move done - unselect
	if(selected)
	    *select = false;
	selected = false;

	emit moveDone(m_game->toString(m_second));
	break;

    default:
	break;
    }

    return true;
}


bool myHumanPlayer::go(int to)
{
    return m_game->go1(from, to);
}