1 | /* |
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2 | ----------------------------------------------------------------------------- |
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3 | This source file is part of OGRE |
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4 | (Object-oriented Graphics Rendering Engine) |
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5 | For the latest info, see http://www.ogre3d.org/ |
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6 | |
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7 | Copyright (c) 2000-2006 Torus Knot Software Ltd |
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8 | Also see acknowledgements in Readme.html |
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9 | |
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10 | This program is free software; you can redistribute it and/or modify it under |
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11 | the terms of the GNU Lesser General Public License as published by the Free Software |
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12 | Foundation; either version 2 of the License, or (at your option) any later |
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13 | version. |
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14 | |
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15 | This program is distributed in the hope that it will be useful, but WITHOUT |
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16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. |
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18 | |
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19 | You should have received a copy of the GNU Lesser General Public License along with |
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20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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22 | http://www.gnu.org/copyleft/lesser.txt. |
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23 | |
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24 | You may alternatively use this source under the terms of a specific version of |
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25 | the OGRE Unrestricted License provided you have obtained such a license from |
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26 | Torus Knot Software Ltd. |
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27 | ----------------------------------------------------------------------------- |
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28 | */ |
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29 | #include "OgreScaleAffector.h" |
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30 | #include "OgreParticleSystem.h" |
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31 | #include "OgreStringConverter.h" |
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32 | #include "OgreParticle.h" |
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33 | |
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34 | |
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35 | namespace Ogre { |
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36 | |
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37 | // init statics |
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38 | ScaleAffector::CmdScaleAdjust ScaleAffector::msScaleCmd; |
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39 | |
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40 | //----------------------------------------------------------------------- |
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41 | ScaleAffector::ScaleAffector(ParticleSystem* psys) |
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42 | :ParticleAffector(psys) |
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43 | { |
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44 | mScaleAdj = 0; |
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45 | mType = "Scaler"; |
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46 | |
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47 | // Init parameters |
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48 | if (createParamDictionary("ScaleAffector")) |
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49 | { |
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50 | ParamDictionary* dict = getParamDictionary(); |
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51 | |
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52 | dict->addParameter(ParameterDef("rate", |
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53 | "The amount by which to adjust the x and y scale components of particles per second.", |
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54 | PT_REAL), &msScaleCmd); |
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55 | } |
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56 | } |
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57 | //----------------------------------------------------------------------- |
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58 | void ScaleAffector::_affectParticles(ParticleSystem* pSystem, Real timeElapsed) |
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59 | { |
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60 | ParticleIterator pi = pSystem->_getIterator(); |
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61 | Particle *p; |
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62 | Real ds; |
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63 | |
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64 | // Scale adjustments by time |
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65 | ds = mScaleAdj * timeElapsed; |
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66 | |
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67 | Real NewWide, NewHigh; |
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68 | |
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69 | while (!pi.end()) |
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70 | { |
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71 | p = pi.getNext(); |
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72 | |
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73 | if( p->hasOwnDimensions() == false ) |
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74 | { |
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75 | NewWide = pSystem->getDefaultWidth() + ds; |
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76 | NewHigh = pSystem->getDefaultHeight() + ds; |
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77 | |
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78 | } |
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79 | else |
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80 | { |
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81 | NewWide = p->getOwnWidth() + ds; |
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82 | NewHigh = p->getOwnHeight() + ds; |
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83 | } |
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84 | p->setDimensions( NewWide, NewHigh ); |
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85 | } |
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86 | |
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87 | } |
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88 | //----------------------------------------------------------------------- |
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89 | void ScaleAffector::setAdjust( Real rate ) |
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90 | { |
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91 | mScaleAdj = rate; |
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92 | } |
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93 | //----------------------------------------------------------------------- |
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94 | Real ScaleAffector::getAdjust(void) const |
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95 | { |
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96 | return mScaleAdj; |
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97 | } |
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98 | //----------------------------------------------------------------------- |
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99 | |
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100 | //----------------------------------------------------------------------- |
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101 | //----------------------------------------------------------------------- |
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102 | // Command objects |
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103 | //----------------------------------------------------------------------- |
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104 | //----------------------------------------------------------------------- |
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105 | String ScaleAffector::CmdScaleAdjust::doGet(const void* target) const |
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106 | { |
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107 | return StringConverter::toString( |
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108 | static_cast<const ScaleAffector*>(target)->getAdjust() ); |
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109 | } |
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110 | void ScaleAffector::CmdScaleAdjust::doSet(void* target, const String& val) |
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111 | { |
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112 | static_cast<ScaleAffector*>(target)->setAdjust( |
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113 | StringConverter::parseReal(val)); |
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114 | } |
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115 | |
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116 | } |
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117 | |
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118 | |
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119 | |
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