76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
//////////////////////////////////////////////////////////////////////////////////
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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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#include "Extensions/Emitters/SPK_NormalEmitter.h"
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#include "Core/SPK_Particle.h"
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namespace SPK
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{
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NormalEmitter::NormalEmitter(Zone* normalZone,bool inverted) :
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Emitter(),
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normalZone(normalZone),
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inverted(inverted)
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{}
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void NormalEmitter::registerChildren(bool registerAll)
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{
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Emitter::registerChildren(registerAll);
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registerChild(normalZone,registerAll);
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}
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void NormalEmitter::copyChildren(const NormalEmitter& emitter,bool createBase)
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{
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Emitter::copyChildren(emitter,createBase);
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normalZone = dynamic_cast<Zone*>(copyChild(emitter.normalZone,createBase));
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}
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void NormalEmitter::destroyChildren(bool keepChildren)
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{
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destroyChild(normalZone,keepChildren);
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Emitter::destroyChildren(keepChildren);
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}
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Registerable* NormalEmitter::findByName(const std::string& name)
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{
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Registerable* object = Emitter::findByName(name);
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if ((object != NULL)||(normalZone == NULL))
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return object;
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return normalZone->findByName(name);
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}
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void NormalEmitter::setNormalZone(Zone* zone)
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{
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decrementChildReference(normalZone);
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incrementChildReference(zone);
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normalZone = zone;
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}
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void NormalEmitter::generateVelocity(Particle& particle,float speed) const
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{
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if (inverted) speed = -speed;
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const Zone* zone = (normalZone == NULL ? getZone() : normalZone);
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particle.velocity() = zone->computeNormal(particle.position()) * speed;
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}
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}
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