147 lines
4.3 KiB
C
147 lines
4.3 KiB
C
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//////////////////////////////////////////////////////////////////////////////////
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// SPARK particle engine //
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// Copyright (C) 2008-2009 - Julien Fryer - julienfryer@gmail.com //
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// //
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// This software is provided 'as-is', without any express or implied //
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// warranty. In no event will the authors be held liable for any damages //
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// arising from the use of this software. //
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// //
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// Permission is granted to anyone to use this software for any purpose, //
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// including commercial applications, and to alter it and redistribute it //
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// freely, subject to the following restrictions: //
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// //
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// 1. The origin of this software must not be misrepresented; you must not //
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// claim that you wrote the original software. If you use this software //
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// in a product, an acknowledgment in the product documentation would be //
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// appreciated but is not required. //
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// 2. Altered source versions must be plainly marked as such, and must not be //
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// misrepresented as being the original software. //
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// 3. This notice may not be removed or altered from any source distribution. //
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//////////////////////////////////////////////////////////////////////////////////
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#ifndef H_SPK_NORMALEMITTER
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#define H_SPK_NORMALEMITTER
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#include "Core/SPK_Emitter.h"
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namespace SPK
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{
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/**
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* @class NormalEmitter
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* @brief An Emitter that emits particles following a Zone normals
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*
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* The Zone used to derive the direction of emission can either be the Emitter Zone
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* or another Zone that can be set with setNormalZone(Zone*).<br>
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* If the normal zone is NULL the emitter Zone is used.
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*
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* @since 1.02.00
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*/
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class SPK_PREFIX NormalEmitter : public Emitter
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{
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SPK_IMPLEMENT_REGISTERABLE(NormalEmitter)
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public :
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//////////////////
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// Constructors //
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//////////////////
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/**
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* @brief Constructor of NormalEmitter
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* @param normalZone : the Zone used to compute normals (NULL to used the Emitter Zone)
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* @param inverted : true to invert the normals, false otherwise
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*/
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NormalEmitter(Zone* normalZone = NULL,bool inverted = false);
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/**
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* @brief Creates and registers a new NormalEmitter
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* @param normalZone : the Zone used to compute normals (NULL to used the Emitter Zone)
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* @param inverted : true to invert the normals, false otherwise
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* @return A new registered NormalEmitter
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* @since 1.04.00
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*/
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static inline NormalEmitter* create(Zone* normalZone = NULL,bool inverted = false);
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/////////////
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// Setters //
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/////////////
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/**
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* @brief Sets whether normals are inverted or not
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* @param inverted true to use inverted normals, false not to
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*/
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inline void setInverted(bool inverted);
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/**
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* @brief the Zone used to compute normals
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*
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* Note that if the normal zone is NULL, the Emitter Zone is used.
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*
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* @param zone : the Zone used to compute normals (NULL to used the Emitter Zone)
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*/
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void setNormalZone(Zone* zone);
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/////////////
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// Getters //
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/////////////
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/**
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* @brief Tells whether normals are inverted for this NormalEmitter
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* @return true if normals are inverted, false if not
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*/
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inline bool isInverted() const;
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/**
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* @brief Gets the normal Zone of this NormalEmitter
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* @return the normal Zone of this NormalEmitter
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*/
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inline Zone* getNormalZone() const;
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///////////////
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// Interface //
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///////////////
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virtual Registerable* findByName(const std::string& name);
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protected :
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virtual void registerChildren(bool registerAll);
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virtual void copyChildren(const NormalEmitter& emitter,bool createBase);
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virtual void destroyChildren(bool keepChildren);
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private :
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bool inverted;
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Zone* normalZone;
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virtual void generateVelocity(Particle& particle,float speed) const;
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};
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inline NormalEmitter* NormalEmitter::create(Zone* normalZone,bool inverted)
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{
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NormalEmitter* obj = new NormalEmitter(normalZone,inverted);
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registerObject(obj);
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return obj;
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}
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inline void NormalEmitter::setInverted(bool inverted)
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{
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this->inverted = inverted;
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}
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inline bool NormalEmitter::isInverted() const
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{
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return inverted;
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}
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inline Zone* NormalEmitter::getNormalZone() const
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{
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return normalZone;
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}
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}
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#endif
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