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annotate engine/core/model/metamodel/timeprovider.h @ 697:ecaa4d98f05f tip

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Abstracted the GUI code and refactored the GUIChan-specific code into its own module. * Most of the GUIChan code has been refactored into its own gui/guichan module. However, references to the GuiFont class still persist in the Engine and GuiManager code and these will need further refactoring. * GuiManager is now an abstract base class which specific implementations (e.g. GUIChan) should subclass. * The GUIChan GUI code is now a concrete implementation of GuiManager, most of which is in the new GuiChanGuiManager class. * The GUI code in the Console class has been refactored out of the Console and into the GUIChan module as its own GuiChanConsoleWidget class. The rest of the Console class related to executing commands was left largely unchanged. * Existing client code may need to downcast the GuiManager pointer received from FIFE::Engine::getGuiManager() to GuiChanGuiManager, since not all functionality is represented in the GuiManager abstract base class. Python client code can use the new GuiChanGuiManager.castTo static method for this purpose.
author M. George Hansen <technopolitica@gmail.com>
date Sat, 18 Jun 2011 00:28:40 -1000
parents 5816ab527da8
children
rev   line source
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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 #ifndef FIFE_TIME_PROVIDER_H
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23 #define FIFE_TIME_PROVIDER_H
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24
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25 // Standard C++ library includes
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27 // 3rd party library includes
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28
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29 // FIFE includes
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30 // These includes are split up in two parts, separated by one empty line
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31 // First block: files included from the FIFE root src directory
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32 // Second block: files included from the same folder
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33 #include "util/base/exception.h"
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34
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35 namespace FIFE {
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36
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37 /** Timeprovider is an utility providing time management functionality
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38 * You can have hierarchy of time providers, whose multiplier can be changed independently.
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39 * Changing providers upper in the hierarchy, changes also all subproviders with the same ratio
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40 */
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41 class TimeProvider {
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42 public:
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43 /** Constructor
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44 * In case there there is no provider master, you can use NULL
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45 */
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46 explicit TimeProvider(TimeProvider* master);
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47 ~TimeProvider();
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49 /** With multiplier, you can adjust the time speed. 0.5 means time runs half as slow,
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50 * while 2.0 means it runs twice as fast
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51 */
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52 void setMultiplier(float multiplier);
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53
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54 /** @see setMultiplier. Returns mutliplier for this single provider
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55 */
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56 float getMultiplier() const;
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57
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58 /** @see setMultiplier. Returns mutliplier for whole chain of timeproviders
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59 * E.g. if master has multiplier 2.0 and this has 0.5, end result = 1.0
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60 */
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61 float getTotalMultiplier() const;
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62
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63 /** Returns current game ticks, already scaled.
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64 */
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65 unsigned int getGameTime() const;
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66
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67 private:
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68 TimeProvider* m_master;
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69 float m_multiplier;
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70 double m_time_static, m_time_scaled;
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71
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72 /** Returns current game ticks, already scaled, more precise.
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73 */
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74 double getPreciseGameTime() const;
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75 };
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76
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77 /** Utility function to calculate time scaling. Mostly done to avoid littering other code
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78 * with related casting
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79 * @return multiplier * ticks
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80 */
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81 unsigned int scaleTime(float multiplier, unsigned int ticks);
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82
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83 } //FIFE
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84 #endif
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