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annotate engine/core/model/metamodel/timeprovider.cpp @ 405:cfe2f6db4964

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Reverting my last change to camera.cpp. It caused unexpected results with rotated tiles.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 29 Jan 2010 15:55:47 +0000
parents 56ac89189bc4
children
rev   line source
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4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23
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24 // 3rd party library includes
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25
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26 // FIFE includes
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27 // These includes are split up in two parts, separated by one empty line
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28 // First block: files included from the FIFE root src directory
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29 // Second block: files included from the same folder
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30 #include "util/base/exception.h"
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31 #include "util/time/timemanager.h"
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32
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33 #include "timeprovider.h"
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34
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35 namespace FIFE {
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36 TimeProvider::TimeProvider(TimeProvider* master):
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37 m_master(master),
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38 m_multiplier(1.0) {
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39 m_time_static = m_time_scaled = master ? master->getGameTime() : TimeManager::instance()->getTime();
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40 }
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41
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42 TimeProvider::~TimeProvider() {}
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43
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44 void TimeProvider::setMultiplier(float multiplier) {
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45 if (multiplier < 0.0) {
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46 throw NotSupported("Negative time multiplier are not supported");
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47 }
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48 m_time_static = getPreciseGameTime();
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49 m_time_scaled = m_master ? m_master->getPreciseGameTime() : static_cast<float>(TimeManager::instance()->getTime());
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50 m_multiplier = multiplier;
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51 }
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52
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53 float TimeProvider::getMultiplier() const {
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54 return m_multiplier;
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55 }
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56
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57 float TimeProvider::getTotalMultiplier() const {
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58 if (m_master) {
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59 return m_master->getTotalMultiplier() * m_multiplier;
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60 } else {
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61 return m_multiplier;
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62 }
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63 }
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64
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65 unsigned int TimeProvider::getGameTime() const {
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66 return static_cast<unsigned int>(getPreciseGameTime());
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67 }
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68
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69 double TimeProvider::getPreciseGameTime() const {
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70 return m_time_static + m_multiplier * ((m_master ? m_master->getPreciseGameTime() : static_cast<float>(TimeManager::instance()->getTime())) - m_time_scaled);
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71 }
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72
0
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73 unsigned int scaleTime(float multiplier, unsigned int ticks) {
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74 return static_cast<unsigned int>(static_cast<float>(ticks) * multiplier);
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75 }
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76 }