示例#1
0
/** Called at the end of a race. Updates highscores, pauses the game, and
 *  informs the unlock manager about the finished race. This function must
 *  be called after all other stats were updated from the different game
 *  modes.
 */
void World::terminateRace()
{
    m_schedule_pause = false;
    m_schedule_unpause = false;

    // Update the estimated finishing time for all karts that haven't
    // finished yet.
    const unsigned int kart_amount = getNumKarts();
    for(unsigned int i = 0; i < kart_amount ; i++)
    {
        if(!m_karts[i]->hasFinishedRace() && !m_karts[i]->isEliminated())
        {
            m_karts[i]->finishedRace(estimateFinishTimeForKart(m_karts[i]));

        }
    }   // i<kart_amount

    // Update highscores, and retrieve the best highscore if relevant
    // to show it in the GUI
    int best_highscore_rank = -1;
    int best_finish_time = -1;
    std::string highscore_who = "";
    StateManager::ActivePlayer* best_player = NULL;
    if (!this->isNetworkWorld())
    {
        updateHighscores(&best_highscore_rank, &best_finish_time, &highscore_who,
                     &best_player);
    }

    // Check achievements
    PlayerManager::increaseAchievement(AchievementInfo::ACHIEVE_COLUMBUS,
                                       getTrack()->getIdent(), 1);
    if (raceHasLaps())
    {
        PlayerManager::increaseAchievement(AchievementInfo::ACHIEVE_MARATHONER,
                                           "laps", race_manager->getNumLaps());
    }

    Achievement *achiev = PlayerManager::getCurrentAchievementsStatus()->getAchievement(AchievementInfo::ACHIEVE_GOLD_DRIVER);
    if (achiev)
    {
        std::string mode_name = getIdent(); // Get the race mode name
        int winner_position = 1;
        unsigned int opponents = achiev->getInfo()->getGoalValue("opponents"); // Get the required opponents number
        if (mode_name == IDENT_FTL)
        {
            winner_position = 2;
            opponents++;
        }
        for(unsigned int i = 0; i < kart_amount; i++)
        {
            // Retrieve the current player
            StateManager::ActivePlayer* p = m_karts[i]->getController()->getPlayer();
            if (p && p->getConstProfile() == PlayerManager::getCurrentPlayer())
            {
                // Check if the player has won
                if (m_karts[i]->getPosition() == winner_position && kart_amount > opponents )
                {
                    // Update the achievement
                    mode_name = StringUtils::toLowerCase(mode_name);
                    if (achiev->getValue("opponents") <= 0)
                        PlayerManager::increaseAchievement(AchievementInfo::ACHIEVE_GOLD_DRIVER,
                                                            "opponents", opponents);
                    PlayerManager::increaseAchievement(AchievementInfo::ACHIEVE_GOLD_DRIVER,
                                                        mode_name, 1);
                }
            }
        } // for i < kart_amount
    } // if (achiev)

    Achievement *win = PlayerManager::getCurrentAchievementsStatus()->getAchievement(AchievementInfo::ACHIEVE_UNSTOPPABLE);
    //if achivement has been unlocked
    if (win->getValue("wins") < 5 )
    {
        for(unsigned int i = 0; i < kart_amount; i++)
        {
            // Retrieve the current player
            StateManager::ActivePlayer* p = m_karts[i]->getController()->getPlayer();
            if (p && p->getConstProfile() == PlayerManager::getCurrentPlayer())
            {
                // Check if the player has won
                if (m_karts[i]->getPosition() == 1 )
                {
                    // Increase number of consecutive wins
                       PlayerManager::increaseAchievement(AchievementInfo::ACHIEVE_UNSTOPPABLE,
                                                            "wins", 1);
                }
                else
                {
                      //Set number of consecutive wins to 0
                      win->reset();
                }
            }
         }
    }
    PlayerManager::getCurrentPlayer()->raceFinished();

    if (m_race_gui) m_race_gui->clearAllMessages();
    // we can't delete the race gui here, since it is needed in case of
    // a restart: the constructor of it creates some textures which assume
    // that no scene nodes exist. In case of a restart there are scene nodes,
    // so we can't create the race gui again, so we keep it around
    // and save the pointer.
    assert(m_saved_race_gui==NULL);
    m_saved_race_gui = m_race_gui;

    RaceResultGUI* results = RaceResultGUI::getInstance();
    m_race_gui       = results;

    if (best_highscore_rank > 0)
    {
        results->setHighscore(highscore_who, best_player, best_highscore_rank,
                              best_finish_time);
    }
    else
    {
        results->clearHighscores();
    }

    results->push();
    WorldStatus::terminateRace();
}   // terminateRace
示例#2
0
/** Handles the conversion from some input to a GameAction and its distribution
 * to the currently active menu.
 * It also handles whether the game is currently sensing input. It does so by
 * suppressing the distribution of the input as a GameAction. Instead the
 * input is stored in 'm_sensed_input' and GA_SENSE_COMPLETE is distributed. If
 * however the input in question has resolved to GA_LEAVE this is treated as
 * an attempt of the user to cancel the sensing. In that case GA_SENSE_CANCEL
 * is distributed.
 *
 * Note: It is the obligation of the called menu to switch of the sense mode.
 *
 */
void InputManager::dispatchInput(Input::InputType type, int deviceID, 
                                 int button, 
                                 Input::AxisDirection axisDirection, int value)
{
    // Act different in input sensing mode.
    if (m_mode == INPUT_SENSE_KEYBOARD ||
        m_mode == INPUT_SENSE_GAMEPAD)
    {
        inputSensing(type, deviceID, button, axisDirection,  value);
        return;
    }
    
    // Abort demo mode if a key is pressed during the race in demo mode
    if(dynamic_cast<DemoWorld*>(World::getWorld()))
    {
        race_manager->exitRace();
        StateManager::get()->resetAndGoToScreen(MainMenuScreen::getInstance());
        return;
    }

    StateManager::ActivePlayer*   player = NULL;
    PlayerAction    action;
    bool action_found = m_device_manager->translateInput(type, deviceID, 
                                                         button, axisDirection,
                                                         value, m_mode, 
                                                         &player, &action);

    // in menus, some keyboard keys are standard (before each player selected 
    // his device). So if a key could not be mapped to any known binding, 
    // fall back to check the defaults.
    if (!action_found && 
            StateManager::get()->getGameState() != GUIEngine::GAME && 
            type == Input::IT_KEYBOARD &&
            m_mode == MENU && m_device_manager->getAssignMode() == NO_ASSIGN)
    {
        action = PA_BEFORE_FIRST;

        if      (button == KEY_UP)     action = PA_MENU_UP;
        else if (button == KEY_DOWN)   action = PA_MENU_DOWN;
        else if (button == KEY_LEFT)   action = PA_MENU_LEFT;
        else if (button == KEY_RIGHT)  action = PA_MENU_RIGHT;
        else if (button == KEY_SPACE)  action = PA_MENU_SELECT;
        else if (button == KEY_RETURN) action = PA_MENU_SELECT;

        if (button == KEY_RETURN && GUIEngine::ModalDialog::isADialogActive())
        {
            GUIEngine::ModalDialog::onEnterPressed();
        }
        
        if (action != PA_BEFORE_FIRST)
        {
            action_found = true;
            player = NULL;
        }
    }
    
    // do something with the key if it matches a binding
    if (action_found)
    {
        // If we're in the kart menu awaiting new players, do special things
        // when a device presses fire or rescue
        if (m_device_manager->getAssignMode() == DETECT_NEW)
        {            
            // Player is unjoining
            if ((player != NULL) && (action == PA_RESCUE || 
                                     action == PA_MENU_CANCEL ) )
            {
                // returns true if the event was handled
                if (KartSelectionScreen::getInstance()->playerQuit( player ))
                {
                    return; // we're done here
                }
            }

            /* The way this is currently structured, any time an event is
               received from an input device that is not associated with a
               player and the device manager is in DETECT_NEW mode, the event
               is ignored, unless it is a PA_FIRE event (a player is joining)

               perhaps it will be good to let unassigned devices back out
               of the kart selection menu?
            */

            else if (player == NULL)
            {
                // New player is joining
                if (action == PA_FIRE || action == PA_MENU_SELECT)
                {
                    InputDevice *device = NULL;
                    if (type == Input::IT_KEYBOARD)
                    {
                        //std::cout << "==== New Player Joining with Key " << 
                        // button << " ====" << std::endl;
                        device = m_device_manager->getKeyboardFromBtnID(button);
                    }
                    else if (type == Input::IT_STICKBUTTON || 
                             type == Input::IT_STICKMOTION    )
                    {
                        device = m_device_manager->getGamePadFromIrrID(deviceID);
                    }

                    if (device != NULL)
                    {
                        KartSelectionScreen::getInstance()->playerJoin(device, 
                                                                       false );
                    }
                }
                return; // we're done here, ignore devices that aren't 
                        // associated with players
            }
        }

        // ... when in-game
        if (StateManager::get()->getGameState() == GUIEngine::GAME && 
             !GUIEngine::ModalDialog::isADialogActive()                  )
        {
            if (player == NULL)
            {
                // Prevent null pointer crash
                return;
            }

            // Find the corresponding PlayerKart from our ActivePlayer instance
            AbstractKart* pk = player->getKart();

            if (pk == NULL)
            {
                std::cerr <<
                    "Error, trying to process action for an unknown player\n";
                return;
            }
            
            Controller* controller = pk->getController();
            if (controller != NULL) controller->action(action, abs(value));
        }
        // ... when in menus
        else
        {

            // reset timer when released
            if (abs(value) == 0 &&  type == Input::IT_STICKBUTTON)
            {
                m_timer_in_use = false;
                m_timer = 0;
            }

            // When in master-only mode, we can safely assume that players 
            // are set up, contrarly to early menus where we accept every 
            // input because players are not set-up yet
            if (m_master_player_only && player == NULL)
            {
                if (type == Input::IT_STICKMOTION || 
                    type == Input::IT_STICKBUTTON)
                {
                    GamePadDevice* gp = 
                        getDeviceList()->getGamePadFromIrrID(deviceID);

                    if (gp != NULL &&
                        abs(value)>gp->m_deadzone)
                    {
                        //I18N: message shown when an input device is used but
                        // is not associated to any player
                        GUIEngine::showMessage(
                            _("Ignoring '%s', you needed to join earlier to play!",
                            irr::core::stringw(gp->m_name.c_str()).c_str())      );
                    }
                }
                return;
            }
            
            // menu input
            if (!m_timer_in_use)
            {
                if (abs(value) > Input::MAX_VALUE*2/3)
                {
                    m_timer_in_use = true;
                    m_timer = 0.25;
                }
                                
                // player may be NULL in early menus, before player setup has 
                // been performed
                int playerID = (player == NULL ? 0 : player->getID());
                
                // If only the master player can act, and this player is not 
                // the master, ignore his input
                if (m_device_manager->getAssignMode() == ASSIGN && 
                    m_master_player_only &&
                    playerID != PLAYER_ID_GAME_MASTER)
                {
                    //I18N: message shown when a player that isn't game master
                    //I18N: tries to modify options that only the game master 
                    //I18N: is allowed to
                    GUIEngine::showMessage(
                        _("Only the Game Master may act at this point!"));
                    return;
                }
                
                // all is good, pass the translated input event on to the 
                // event handler
                GUIEngine::EventHandler::get()
                    ->processGUIAction(action, deviceID, abs(value), type, 
                                       playerID);
            }
        }
    }
    else if (type == Input::IT_KEYBOARD)
    {
        // keyboard press not handled by device manager / bindings. 
        // Check static bindings...
        handleStaticAction( button, value );
    }
}   // input
示例#3
0
/** Is called by check structures if a kart starts a new lap.
 *  \param kart_index Index of the kart.
 */
void LinearWorld::newLap(unsigned int kart_index)
{
    KartInfo &kart_info = m_kart_info[kart_index];
    AbstractKart *kart  = m_karts[kart_index];

    // Reset reset-after-lap achievements
    StateManager::ActivePlayer *c = kart->getController()->getPlayer();
    PlayerProfile *p = PlayerManager::getCurrentPlayer();
    if (c && c->getConstProfile() == p)
    {
        p->getAchievementsStatus()->onLapEnd();
    }

    // Only update the kart controller if a kart that has already finished
    // the race crosses the start line again. This avoids 'fastest lap'
    // messages if the end controller does a fastest lap, but especially
    // allows the end controller to switch end cameras
    if(kart->hasFinishedRace())
    {
        kart->getController()->newLap(kart_info.m_race_lap);
        return;
    }

    const int lap_count = race_manager->getNumLaps();

    // Only increase the lap counter and set the new time if the
    // kart hasn't already finished the race (otherwise the race_gui
    // will begin another countdown).
    if(kart_info.m_race_lap+1 <= lap_count)
    {
        assert(kart->getWorldKartId()==kart_index);
        kart_info.m_time_at_last_lap=getTime();
        kart_info.m_race_lap++;
        m_kart_info[kart_index].m_overall_distance =
              m_kart_info[kart_index].m_race_lap * m_track->getTrackLength()
            + getDistanceDownTrackForKart(kart->getWorldKartId());
    }
    // Last lap message (kart_index's assert in previous block already)
    if (raceHasLaps() && kart_info.m_race_lap+1 == lap_count)
    {
        m_race_gui->addMessage(_("Final lap!"), kart,
                               3.0f, video::SColor(255, 210, 100, 50), true);
        if(!m_last_lap_sfx_played && lap_count > 1)
        {
            if (UserConfigParams::m_music)
            {
                m_last_lap_sfx->play();
                m_last_lap_sfx_played = true;
                m_last_lap_sfx_playing = true;

                // In case that no music is defined
                if(music_manager->getCurrentMusic() &&
                    music_manager->getMasterMusicVolume() > 0.2f)
                {
                    music_manager->setTemporaryVolume(0.2f);
                }
            }
            else
            {
                m_last_lap_sfx_played = true;
                m_last_lap_sfx_playing = false;
            }
        }
    }
    else if (raceHasLaps() && kart_info.m_race_lap > 0 &&
             kart_info.m_race_lap+1 < lap_count)
    {
        m_race_gui->addMessage(_("Lap %i", kart_info.m_race_lap+1),
                               kart, 3.0f, video::SColor(255, 210, 100, 50),
                               true);
    }

    // The race positions must be updated here: consider the situation where
    // the first kart does not cross the finish line in its last lap, instead
    // it passes it, the kart reverses and crosses the finishing line
    // backwards. Just before crossing the finishing line the kart will be on
    // the last lap, but with a distance along the track close to zero.
    // Therefore its position will be wrong. If the race position gets updated
    // after increasing the number of laps (but before tagging the kart to have
    // finished the race) the position will be correct (since the kart now
    // has one additional lap it will be ahead of the other karts).
    // Without this call the incorrect position for this kart would remain
    // (since a kart that has finished the race does not get its position
    // changed anymore), potentially resulting in a duplicated race position
    // (since the first kart does not have position 1, no other kart can get
    // position 1, so one rank will be duplicated).
    // Similarly the situation can happen if the distance along track should
    // go back to zero before actually crossing the finishing line. While this
    // should not happen, it could potentially be caused by floating point
    // errors. In this case the call to updateRacePosition will avoid
    // duplicated race positions as well.
    updateRacePosition();

    // Race finished
    if(kart_info.m_race_lap >= race_manager->getNumLaps() && raceHasLaps())
    {
        kart->finishedRace(getTime());
    }
    float time_per_lap;
    if (kart_info.m_race_lap == 1) // just completed first lap
    {
        time_per_lap=getTime();
    }
    else //completing subsequent laps
    {
        time_per_lap=getTime() - kart_info.m_lap_start_time;
    }

    // if new fastest lap
    if(time_per_lap < m_fastest_lap && raceHasLaps() &&
        kart_info.m_race_lap>0)
    {
        m_fastest_lap = time_per_lap;

        std::string s = StringUtils::timeToString(time_per_lap);

        // Store the temporary string because clang would mess this up
        // (remove the stringw before the wchar_t* is used).
        const core::stringw &kart_name = kart->getName();

        //I18N: as in "fastest lap: 60 seconds by Wilber"
        irr::core::stringw m_fastest_lap_message =
            _C("fastest_lap", "%s by %s", s.c_str(), kart_name);

        m_race_gui->addMessage(m_fastest_lap_message, NULL,
                               3.0f, video::SColor(255, 255, 255, 255), false);

        m_race_gui->addMessage(_("New fastest lap"), NULL,
                               3.0f, video::SColor(255, 255, 255, 255), false);

    } // end if new fastest lap

    kart_info.m_lap_start_time = getTime();
    kart->getController()->newLap(kart_info.m_race_lap);
}   // newLap
示例#4
0
/** Updates skidding status.
 *  \param dt Time step size.
 *  \param is_on_ground True if the kart is on ground.
 *  \param steering Raw steering of the kart [-1,1], i.e. not adjusted by
 *               the kart's max steering angle.
 *  \param skidding  True if the skid button is pressed.
 */
void Skidding::update(float dt, bool is_on_ground,
                      float steering, KartControl::SkidControl skidding)
{
    // If a kart animation is shown, stop all skidding bonuses.
    if(m_kart->getKartAnimation())
    {
        reset();
        return;
    }
#ifdef SKIDDING_PARTICLE_DEBUG
    // This code will cause skidmarks to be displayed all the time, even
    // when the kart is not moving.
    m_kart->getKartGFX()->setCreationRateRelative(KartGFX::KGFX_SKIDL, 0.5f);
    m_kart->getKartGFX()->setCreationRateRelative(KartGFX::KGFX_SKIDR, 0.5f);
#endif

    // No skidding backwards or while stopped
    if(m_kart->getSpeed() < m_min_skid_speed &&
       m_skid_state != SKID_NONE && m_skid_state != SKID_BREAK)
    {
        m_skid_state = SKID_BREAK;
        m_kart->getKartGFX()->setCreationRateAbsolute(KartGFX::KGFX_SKIDL, 0);
        m_kart->getKartGFX()->setCreationRateAbsolute(KartGFX::KGFX_SKIDR, 0);
    }

    m_skid_bonus_ready = false;
    if (is_on_ground)
    {
        if((fabs(steering) > 0.001f) &&
            m_kart->getSpeed()>m_min_skid_speed &&
            (skidding==KartControl::SC_LEFT||skidding==KartControl::SC_RIGHT))
        {
            m_skid_factor +=  m_skid_increase *dt/m_time_till_max_skid;
        }
        else if(m_skid_factor>1.0f)
        {
            m_skid_factor *= m_skid_decrease;
        }
    }
    else
    {
        m_skid_factor = 1.0f; // Lose any skid factor as soon as we fly
    }

    if(m_skid_factor>m_skid_max)
        m_skid_factor = m_skid_max;
    else
        if(m_skid_factor<1.0f) m_skid_factor = 1.0f;

    // If skidding was started and a graphical jump should still
    // be displayed, update the data
    if(m_remaining_jump_time>0)
    {
        m_jump_speed -= World::getWorld()->getTrack()->getGravity()*dt;
        m_gfx_jump_offset += m_jump_speed * dt;
        m_remaining_jump_time -= dt;
        if(m_remaining_jump_time<0)
        {
            m_remaining_jump_time = 0.0f;
            m_gfx_jump_offset     = 0.0f;
        }
    }

    // This is only reached if the new skidding is enabled
    // ---------------------------------------------------

    // There are four distinct states related to skidding, controlled
    // by m_skid_state:
    // SKID_NONE: no skidding is happening. From here SKID_ACCUMULATE
    //    is reached when the skid key is pressed.
    // SKID_ACCUMULATE_{LEFT,RIGHT}:
    //    The kart is still skidding. The skidding time will be
    //    accumulated in m_skid_time, and once the minimum time for a
    //    bonus is reached, the "bonus gfx now available" gfx is shown.
    //    If the skid button is not pressed anymore, this will trigger
    //    a potential bonus. Also the rotation of the physical body to
    //    be in synch with the graphical kart is started (which is
    //    independently handled in the kart physics).
    // SKID_SHOW_GFX_{LEFT<RIGHT}
    //    Shows the skidding gfx while the bonus is available.
    // FIXME: what should we do if skid key is pressed while still in
    //   SKID_SHOW_GFX??? Adjusting the body rotation is difficult.
    //   For now skidding will only start again once SKID_SHOW_GFX
    //   is changed to SKID_NONE.
    switch(m_skid_state)
    {
    case SKID_NONE:
        {
            if(skidding!=KartControl::SC_LEFT &&
                skidding!=KartControl::SC_RIGHT)
                break;
            // Don't allow skidding while the kart is (apparently)
            // still in the air, or when the kart is too slow
            if(m_remaining_jump_time>0 ||
                m_kart->getSpeed() <m_min_skid_speed) break;

            m_skid_state = skidding==KartControl::SC_RIGHT
                         ? SKID_ACCUMULATE_RIGHT
                         : SKID_ACCUMULATE_LEFT;
            // Add a little jump to the kart. Determine the vertical speed
            // necessary for the kart to go 0.5*jump_time up (then it needs
            // the same time to come down again), based on v = gravity * t.
            // Then use this speed to determine the impulse necessary to
            // reach this speed.
            float v = World::getWorld()->getTrack()->getGravity()
                    * 0.5f*m_physical_jump_time;
            btVector3 imp(0, v / m_kart->getBody()->getInvMass(),0);
            m_kart->getVehicle()->getRigidBody()->applyCentralImpulse(imp);

            // Some karts might use a graphical-only jump. Set it up:
            m_jump_speed = World::getWorld()->getTrack()->getGravity()
                         * 0.5f*m_graphical_jump_time;
            m_remaining_jump_time = m_graphical_jump_time;

#ifdef SKID_DEBUG
#define SPEED 20.0f
            updateSteering(steering, dt);
            m_actual_curve->clear();
            m_actual_curve->setVisible(true);
            m_predicted_curve->clear();
            m_predicted_curve->setVisible(true);
            m_predicted_curve->setPosition(m_kart->getXYZ());
            m_predicted_curve->setHeading(m_kart->getHeading());
            float angle = m_kart->getKartProperties()
                                ->getMaxSteerAngle(m_kart->getSpeed())
                        * fabsf(getSteeringFraction());
            angle = m_kart->getKartProperties()
                                ->getMaxSteerAngle(SPEED)
                        * fabsf(getSteeringFraction());
            float r = m_kart->getKartProperties()->getWheelBase()
                   / asin(angle)*1.0f;

            const int num_steps = 50;

            float dx = 2*r / num_steps;

            for(float x = 0; x <=2*r; x+=dx)
            {
                float real_x = m_skid_state==SKID_ACCUMULATE_LEFT ? -x : x;
                Vec3 xyz(real_x, 0.2f, sqrt(r*r-(r-x)*(r-x))*(1.0f+SPEED/150.0f)
                          *(1+(angle/m_kart->getKartProperties()->getMaxSteerAngle(SPEED)-0.6f)*0.1f));
                Vec3 xyz1=m_kart->getTrans()(xyz);
                Log::debug("Skidding", "predict %f %f %f speed %f angle %f",
                    xyz1.getX(), xyz1.getY(), xyz1.getZ(),
                    m_kart->getSpeed(), angle);
                m_predicted_curve->addPoint(xyz);
            }

#endif
            m_skid_time  = 0;   // fallthrough
        }
    case SKID_BREAK:
        {
            break;
        }
    case SKID_ACCUMULATE_LEFT:
    case SKID_ACCUMULATE_RIGHT:
        {
#ifdef SKID_DEBUG
            Vec3 v=m_kart->getVelocity();
            if(v.length()>5)
            {
                float r = SPEED/sqrt(v.getX()*v.getX() + v.getZ()*v.getZ());
                v.setX(v.getX()*r);
                v.setZ(v.getZ()*r);
                m_kart->getBody()->setLinearVelocity(v);

            }

            m_actual_curve->addPoint(m_kart->getXYZ());
            Log::debug("Skidding", "actual %f %f %f turn %f speed %f angle %f",
                m_kart->getXYZ().getX(),m_kart->getXYZ().getY(),m_kart->getXYZ().getZ(),
                m_real_steering, m_kart->getSpeed(),
                m_kart->getKartProperties()->getMaxSteerAngle(m_kart->getSpeed()));
#endif
            m_skid_time += dt;
            float bonus_time, bonus_speed, bonus_force;
            unsigned int level = getSkidBonus(&bonus_time, &bonus_speed,
                                              &bonus_force);
            // If at least level 1 bonus is reached, show appropriate gfx
            if(level>0)
            {
                m_skid_bonus_ready = true;
                m_kart->getKartGFX()->setSkidLevel(level);
                m_kart->getKartGFX()->updateSkidLight(level);
            }
            // If player stops skidding, trigger bonus, and change state to
            // SKID_SHOW_GFX_*
            if(skidding == KartControl::SC_NONE)
            {
                m_skid_state = m_skid_state == SKID_ACCUMULATE_LEFT
                             ? SKID_SHOW_GFX_LEFT
                             : SKID_SHOW_GFX_RIGHT;
                float t = std::min(m_skid_time, m_skid_visual_time);
                t       = std::min(t,           m_skid_revert_visual_time);

                float vso = getVisualSkidRotation();
                btVector3 rot(0, vso*m_post_skid_rotate_factor, 0);
                m_kart->getVehicle()->setTimedRotation(t, rot);
                // skid_time is used to count backwards for the GFX
                m_skid_time = t;
                if(bonus_time>0)
                {
                    m_kart->getKartGFX()
                          ->setCreationRateRelative(KartGFX::KGFX_SKIDL, 1.0f);
                    m_kart->getKartGFX()
                          ->setCreationRateRelative(KartGFX::KGFX_SKIDR, 1.0f);
                    m_kart->m_max_speed->
                        instantSpeedIncrease(MaxSpeed::MS_INCREASE_SKIDDING,
                                             bonus_speed, bonus_speed,
                                             bonus_force, bonus_time,
                                             /*fade-out-time*/ 1.0f);
                    
                    StateManager::ActivePlayer *c = m_kart->getController()->getPlayer();
                    if (c && c->getConstProfile() == PlayerManager::getCurrentPlayer())
                    {
                        PlayerManager::increaseAchievement(AchievementInfo::ACHIEVE_SKIDDING, "skidding");
                    }
                }
                else {
                    m_kart->getKartGFX()
                          ->setCreationRateAbsolute(KartGFX::KGFX_SKIDL, 0);
                    m_kart->getKartGFX()
                          ->setCreationRateAbsolute(KartGFX::KGFX_SKIDR, 0);
            }
            }
            break;
        }   // case
    case SKID_SHOW_GFX_LEFT:
    case SKID_SHOW_GFX_RIGHT:
        m_skid_time -= dt;
        if(m_skid_time<=0)
        {
            m_skid_time = 0;
            m_kart->getKartGFX()
                  ->setCreationRateAbsolute(KartGFX::KGFX_SKIDL, 0);
            m_kart->getKartGFX()
                  ->setCreationRateAbsolute(KartGFX::KGFX_SKIDR, 0);
            m_kart->getKartGFX()->updateSkidLight(0);
            m_skid_state = SKID_NONE;
        }
    }   // switch
    updateSteering(steering, dt);
}   // update