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// Copyright (C) 2010-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "CParticleScaleAffector.h"
#include "IAttributes.h"
namespace irr
{
namespace scene
{
CParticleScaleAffector::CParticleScaleAffector(const core::dimension2df& scaleTo)
: ScaleTo(scaleTo)
{
#ifdef _DEBUG
setDebugName("CParticleScaleAffector");
#endif
}
void CParticleScaleAffector::affect (u32 now, SParticle *particlearray, u32 count)
{
for(u32 i=0;i<count;i++)
{
const u32 maxdiff = particlearray[i].endTime - particlearray[i].startTime;
const u32 curdiff = now - particlearray[i].startTime;
const f32 newscale = (f32)curdiff/maxdiff;
particlearray[i].size = particlearray[i].startSize+ScaleTo*newscale;
}
}
void CParticleScaleAffector::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
{
out->addFloat("ScaleToWidth", ScaleTo.Width);
out->addFloat("ScaleToHeight", ScaleTo.Height);
}
void CParticleScaleAffector::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
{
ScaleTo.Width = in->getAttributeAsFloat("ScaleToWidth");
ScaleTo.Height = in->getAttributeAsFloat("ScaleToHeight");
}
E_PARTICLE_AFFECTOR_TYPE CParticleScaleAffector::getType() const
{
return scene::EPAT_SCALE;
}
}
}
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