SpeedChange.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 <graph/SpeedChange.h>
#include <client/ScorchedClient.h>
#include <client/ClientParams.h>
#include <server/ServerShotFinishedState.h>
#include <server/ScorchedServer.h>
#include <common/Keyboard.h>
#include <common/Defines.h>
#include <client/ClientParams.h>
#include <engine/ActionController.h>
#include <graph/ParticleEngine.h>
#include <GLW/GLWFont.h>
#include <stdio.h>

SpeedChange *SpeedChange::instance_ = 0;

SpeedChange *SpeedChange::instance()
{
        if (!instance_)
        {
                instance_ = new SpeedChange;
        }
        return instance_;
}

SpeedChange::SpeedChange() :
        GameStateI("SpeedChange")
{
}

SpeedChange::~SpeedChange()
{
}

void SpeedChange::resetSpeed()
{
        setSpeed(1);
}

void SpeedChange::draw(const unsigned state)
{
        float speed = ScorchedClient::instance()->getActionController().getFast().asFloat();
        if (speed != 1.0f)
        {
                GLState state(GLState::BLEND_ON | GLState::TEXTURE_OFF); 
                static char buffer[10];
                snprintf(buffer, 10, "%.1fX", speed);

                static Vector fontColor(0.7f, 0.7f, 0.2f);
                GLWFont::instance()->getGameFont()->draw(fontColor, 20, 10.0f, 10.0f, 0.0f, buffer);
        }
}

void SpeedChange::simulate(const unsigned state, float simTime)
{
        fixed speed = ScorchedClient::instance()->getActionController().getFast();
        float timeTaken = frameClock_.getTimeDifference();
        if (timeTaken > 0.2f && speed > 1)
        {
                setSpeed(speed / 2);
        }
}

void SpeedChange::keyboardCheck(const unsigned state, float frameTime, 
                                                           char *buffer, unsigned int keyState,
                                                           KeyboardHistory::HistoryElement *history, int hisCount, 
                                                           bool &skipRest)
{
        if (ClientParams::instance()->getConnectedToServer()) return;

        KEYBOARDKEY("SIMULATION_SPEED_X1", x1Key);
        KEYBOARDKEY("SIMULATION_SPEED_X2", x2Key);
        KEYBOARDKEY("SIMULATION_SPEED_X3", x3Key);
        KEYBOARDKEY("SIMULATION_SPEED_X4", x4Key);
        KEYBOARDKEY("SIMULATION_SPEED_HALF", xHalfKey);
        KEYBOARDKEY("SIMULATION_SPEED_QUARTER", xQuarterKey);
        KEYBOARDKEY("SIMULATION_SPEED_EIGHTH", xEighthKey);

        if (x1Key->keyDown(buffer, keyState))
        {
                resetSpeed();
        }
        else if (x2Key->keyDown(buffer, keyState))
        {
                setSpeed(2);
        }
        else if (x3Key->keyDown(buffer, keyState))
        {
                setSpeed(4);
        }
        else if (x4Key->keyDown(buffer, keyState))
        {
                setSpeed(8);
        }
        else if (xHalfKey->keyDown(buffer, keyState))
        {
                setSpeed(fixed(1) / fixed(2));
        }
        else if (xQuarterKey->keyDown(buffer, keyState))
        {
                setSpeed(fixed(1) / fixed(4));
        }
        else if (xEighthKey->keyDown(buffer, keyState))
        {
                setSpeed(fixed(1) / fixed(8));
        }
}

void SpeedChange::setSpeed(fixed speed)
{
        ScorchedClient::instance()->getActionController().setFast(speed);
        ParticleEngine::setFast(speed.asFloat());

        if (!ClientParams::instance()->getConnectedToServer())
        {
                ScorchedServer::instance()->getActionController().setFast(speed);
                ServerShotFinishedState::setSpeed(speed.asFloat()); // Hack!!
        }
}

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