100 lines
3.7 KiB
C++
100 lines
3.7 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 "particleMovementAffector.h"
|
||
|
|
#include "particles/particleaffector.h"
|
||
|
|
#include "particles/particlesystem.h"
|
||
|
|
#include "particles/particle.h"
|
||
|
|
|
||
|
|
namespace Particles
|
||
|
|
{
|
||
|
|
using namespace Math;
|
||
|
|
|
||
|
|
__ImplementClass(Particles::MovementAffector, CPFCC::AFFECTOR_MOVEMENT, Particles::ParticleAffector);
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
MovementAffector::MovementAffector() : ParticleAffector()
|
||
|
|
{
|
||
|
|
mMinMaxSpeed.SetScalar( 1.0f );
|
||
|
|
mName = "MovementAffector";
|
||
|
|
}
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
void MovementAffector::_affect(Particle* particle)
|
||
|
|
{
|
||
|
|
if(!GetEnable())
|
||
|
|
return;
|
||
|
|
float percent = (particle->mTotalTimeToLive - particle->mTimeToLive)/particle->mTotalTimeToLive;
|
||
|
|
|
||
|
|
Math::float3 GravityPos(mMinMaxPosX.Calculate(percent,particle->mRandom0)
|
||
|
|
, mMinMaxPosY.Calculate(percent,particle->mRandom1)
|
||
|
|
, mMinMaxPosZ.Calculate(percent,particle->mRandom2) );
|
||
|
|
|
||
|
|
|
||
|
|
Math::float3 gravity = GravityPos;
|
||
|
|
float Gravity = mMinMaxSpeed.Calculate(percent,particle->mRandom3);
|
||
|
|
gravity = gravity - particle->mPosition;
|
||
|
|
gravity.normalise();
|
||
|
|
particle->mDirection = (particle->mDirection + gravity*Gravity)/2.0f;
|
||
|
|
|
||
|
|
}
|
||
|
|
//-------------------------------------------------------------------------------
|
||
|
|
void MovementAffector::InitShaderParam()
|
||
|
|
{
|
||
|
|
mShaderParam.x() = mMinMaxPosX.Calculate(0,Math::n_rand(0,1));
|
||
|
|
mShaderParam.y() = mMinMaxPosY.Calculate(0,Math::n_rand(0,1));
|
||
|
|
mShaderParam.z() = mMinMaxPosZ.Calculate(0,Math::n_rand(0,1));
|
||
|
|
mShaderParam.w() = mMinMaxSpeed.Calculate(0,Math::n_rand(0,1));
|
||
|
|
}
|
||
|
|
void MovementAffector::SetShaderParam()
|
||
|
|
{
|
||
|
|
Graphic::GlobalMaterialParam* pGMP = Graphic::Material::GetGlobalMaterialParams();
|
||
|
|
pGMP->SetVectorParam(Graphic::eGShaderParticleMovement,mShaderParam);
|
||
|
|
}
|
||
|
|
//--------------------------------------------------------------------------------
|
||
|
|
void MovementAffector::SetShaderMask(const GPtr<ShaderProgramCompiler::ShaderMarcro>& pMarcro)
|
||
|
|
{
|
||
|
|
if(!GetEnable())
|
||
|
|
return;
|
||
|
|
pMarcro->TurnOn(ShaderProgramCompiler::ShaderMarcro::m_sParticleMovement);
|
||
|
|
}
|
||
|
|
//--------------------------------------------------------------------------------
|
||
|
|
Math::MinMaxCurve* MovementAffector::getMinMaxCurve(ParticleCurveType pct)
|
||
|
|
{
|
||
|
|
switch(pct)
|
||
|
|
{
|
||
|
|
case Affector_MovementX:
|
||
|
|
return &mMinMaxPosX;
|
||
|
|
case Affector_MovementY:
|
||
|
|
return &mMinMaxPosY;
|
||
|
|
case Affector_MovementZ:
|
||
|
|
return &mMinMaxPosZ;
|
||
|
|
case Affector_MovementSpeed:
|
||
|
|
return &mMinMaxSpeed;
|
||
|
|
default:
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|