68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
|
// 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
|
||
|
|
|