89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
|
/****************************************************************************
|
||
|
Copyright (c) 2011-2013,WebJet Business Division,CYOU
|
||
|
|
||
|
http://www.genesis-3d.com.cn
|
||
|
|
||
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
of this software and associated documentation files (the "Software"), to deal
|
||
|
in the Software without restriction, including without limitation the rights
|
||
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
copies of the Software, and to permit persons to whom the Software is
|
||
|
furnished to do so, subject to the following conditions:
|
||
|
|
||
|
The above copyright notice and this permission notice shall be included in
|
||
|
all copies or substantial portions of the Software.
|
||
|
|
||
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
THE SOFTWARE.
|
||
|
****************************************************************************/
|
||
|
#include "stdneb.h"
|
||
|
#include "particleVortexAffector.h"
|
||
|
#include "particles/particleaffector.h"
|
||
|
#include "particles/particle.h"
|
||
|
#include "particles/particlesystem.h"
|
||
|
|
||
|
namespace Particles
|
||
|
{
|
||
|
using namespace Math;
|
||
|
|
||
|
__ImplementClass(Particles::VortexAffector, CPFCC::AFFECTOR_VORTEX, Particles::ParticleAffector);
|
||
|
|
||
|
// Constants
|
||
|
const Math::scalar VortexAffector::DEFAULT_ROTATION_SPEED = 1.0f;
|
||
|
//-----------------------------------------------------------------------
|
||
|
VortexAffector::VortexAffector(void) : ParticleAffector()
|
||
|
{
|
||
|
mName = "VortexAffector";
|
||
|
}
|
||
|
//------------------------------------------------------------------------
|
||
|
void VortexAffector::_preProcessParticles(void)
|
||
|
{
|
||
|
}
|
||
|
//-----------------------------------------------------------------------
|
||
|
void VortexAffector::_affect(Particle* particle)
|
||
|
{
|
||
|
if(!GetEnable())
|
||
|
return;
|
||
|
float percent = (particle->mTotalTimeToLive - particle->mTimeToLive)/particle->mTotalTimeToLive;
|
||
|
Math::vector normal(mMinMaxNormalX.Calculate(percent,particle->mRandom0),
|
||
|
mMinMaxNormalY.Calculate(percent,particle->mRandom1),
|
||
|
mMinMaxNormalZ.Calculate(percent,particle->mRandom2) );
|
||
|
|
||
|
float rotSpeed = mMinMaxRotationSpeed.Calculate(percent,particle->mRandom3);
|
||
|
|
||
|
Math::quaternion mRotation = Math::quaternion::rotationaxis(Math::float4::normalize(normal), rotSpeed * (Math::scalar)mParentSystem->GetCurrentFrameTime());
|
||
|
|
||
|
Math::float3 local = particle->mPosition;
|
||
|
particle->mPosition = mRotation * local;
|
||
|
|
||
|
particle->mDirection = mRotation * particle->mDirection;
|
||
|
|
||
|
particle->mOrientation = Math::quaternion::multiply(particle->mOrientation ,mRotation);
|
||
|
|
||
|
|
||
|
}
|
||
|
//--------------------------------------------------------------------------------
|
||
|
Math::MinMaxCurve* VortexAffector::getMinMaxCurve(ParticleCurveType pct)
|
||
|
{
|
||
|
switch(pct)
|
||
|
{
|
||
|
case Affector_Vortex:
|
||
|
return &mMinMaxRotationSpeed;
|
||
|
case Affector_VortexX:
|
||
|
return &mMinMaxNormalX;
|
||
|
case Affector_VortexY:
|
||
|
return &mMinMaxNormalY;
|
||
|
case Affector_VortexZ:
|
||
|
return &mMinMaxNormalZ;
|
||
|
default:
|
||
|
return Super::getMinMaxCurve(pct);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
}
|