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