/*
    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) 2011  <copyright holder> <email>

    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 3 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, see <http://www.gnu.org/licenses/>.
*/

#include "StateManager.h"

#include "GameState.h"

StateManager::StateManager() :
    active_state_(nullptr)
{
}

StateManager::~StateManager()
{
}

bool StateManager::addActiveState(const std::shared_ptr<GameState> &state)
{
    if (active_state_ != nullptr) {
        active_state_->cleanUp();
    }

    if (!state->init()) {
        return false;
    }

    active_state_ = state;
    return true;
}

const std::shared_ptr<GameState> &StateManager::getActiveState()
{
    return active_state_;
}
