ServerShotState.cpp

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////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2009
//
//    This file is part of Scorched3D.
//
//    Scorched3D 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.
//
//    Scorched3D 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 Scorched3D; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////

#include <server/ServerShotState.h>
#include <server/ScorchedServer.h>
#include <server/ServerShotHolder.h>
#include <server/ServerCommon.h>
#include <server/ServerChannelManager.h>
#include <coms/ComsMessageSender.h>
#include <common/OptionsScorched.h>
#include <common/OptionsTransient.h>
#include <tank/TankState.h>
#include <engine/ActionController.h>

ServerShotState::ServerShotState() :
        GameStateI("ServerShotState"),
        shotState_(ScorchedServer::instance()->getContext(), *ServerShotHolder::instance())
{
}

ServerShotState::~ServerShotState()
{
}

void ServerShotState::enterState(const unsigned state)
{
        // Record the players that are actualy playing shots
        playing_.clear();
        std::map<unsigned int, Tank *>::iterator itor;
        std::map<unsigned int, Tank *> tanks = 
                ScorchedServer::instance()->getTankContainer().getPlayingTanks();
        std::set<unsigned int>::iterator findItor;
        for (itor = tanks.begin();
                itor != tanks.end();
                itor++)
        {
                Tank *tank = (*itor).second;
                if (tank->getState().getState() != TankState::sPending &&
                        tank->getState().getState() != TankState::sLoading &&
                        tank->getState().getState() != TankState::sInitializing &&
                        tank->getDestinationId() != 0)
                {
                        unsigned int destination = tank->getDestinationId();
                        playing_.insert(destination);
                }
        }

        // Check if all the players have skipped, and only
        // computer AIs are playing
        if (ServerShotHolder::instance()->allSkipped() &&
                ScorchedServer::instance()->getOptionsGame().getTurnType().getValue() == OptionsGame::TurnSimultaneous)
        {
                bool allAis = true;
                bool someAlive = false;
                std::map<unsigned int, Tank *> &tanks = 
                        ScorchedServer::instance()->getTankContainer().getPlayingTanks();
                std::map<unsigned int, Tank *>::iterator itor;
                for (itor = tanks.begin();
                        itor != tanks.end();
                        itor++)
                {
                        Tank *tank = (*itor).second;
                        if (tank->getState().getState() == TankState::sNormal)
                        {
                                someAlive = true;
                                if (tank->getDestinationId() != 0) 
                                {
                                        allAis = false;
                                }
                        }
                }

                if (allAis && someAlive)
                {
                        ServerChannelManager::instance()->sendText(
                                ChannelText("info", 
                                        "TURN_SKIPPING_STALEMATE", 
                                        "Skipping all turns due to stalemate..."),
                                true);
                        ScorchedServer::instance()->getOptionsTransient().startNewRound();
                }
        }

        // Send the player state to all players to ensure that the playing field
        // is consistent before the shots start
        // This should be done before the actual shots are fired or
        // any play is made also
        // Send all of the shots to the client
        unsigned int seed = rand();
        ComsPlayMovesMessage playMovesMessage;
        playMovesMessage.getSeed() = seed;
        ServerShotHolder::instance()->createMessage(playMovesMessage);
        ComsMessageSender::sendToAllPlayingClients(playMovesMessage);

        // Play the shots
        ScorchedServer::instance()->getTankContainer().setAllNotReady();
        ScorchedServer::instance()->getActionController().getRandom().seed(seed);
        shotState_.setup();
}

bool ServerShotState::acceptStateChange(const unsigned state, 
                const unsigned nextState,
                float frameTime)
{
        return shotState_.run(frameTime);
}

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