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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "CParticleRotationAffector.h"
#include "IAttributes.h"
namespace irr
{
namespace scene
{
//! constructor
CParticleRotationAffector::CParticleRotationAffector( const core::vector3df& speed, const core::vector3df& pivotPoint )
: PivotPoint(pivotPoint), Speed(speed), LastTime(0)
{
#ifdef _DEBUG
setDebugName("CParticleRotationAffector");
#endif
}
//! Affects an array of particles.
void CParticleRotationAffector::affect(u32 now, SParticle* particlearray, u32 count)
{
if( LastTime == 0 )
{
LastTime = now;
return;
}
f32 timeDelta = ( now - LastTime ) / 1000.0f;
LastTime = now;
if( !Enabled )
return;
for(u32 i=0; i<count; ++i)
{
if( Speed.X != 0.0f )
particlearray[i].pos.rotateYZBy( timeDelta * Speed.X, PivotPoint );
if( Speed.Y != 0.0f )
particlearray[i].pos.rotateXZBy( timeDelta * Speed.Y, PivotPoint );
if( Speed.Z != 0.0f )
particlearray[i].pos.rotateXYBy( timeDelta * Speed.Z, PivotPoint );
}
}
//! Writes attributes of the object.
void CParticleRotationAffector::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
{
out->addVector3d("PivotPoint", PivotPoint);
out->addVector3d("Speed", Speed);
}
//! Reads attributes of the object.
void CParticleRotationAffector::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
{
PivotPoint = in->getAttributeAsVector3d("PivotPoint");
Speed = in->getAttributeAsVector3d("Speed");
}
} // end namespace scene
} // end namespace irr
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