mirror of
https://github.com/minetest/irrlicht.git
synced 2024-11-05 01:40:44 +01:00
8310a3fbad
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6000 dfc29bdd-3216-0410-991c-e03cc46cb475
89 lines
2.2 KiB
C++
89 lines
2.2 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 "CParticleAttractionAffector.h"
|
|
|
|
#ifdef _IRR_COMPILE_WITH_PARTICLES_
|
|
|
|
#include "IAttributes.h"
|
|
|
|
namespace irr
|
|
{
|
|
namespace scene
|
|
{
|
|
|
|
//! constructor
|
|
CParticleAttractionAffector::CParticleAttractionAffector(
|
|
const core::vector3df& point, f32 speed, bool attract,
|
|
bool affectX, bool affectY, bool affectZ )
|
|
: Point(point), Speed(speed), AffectX(affectX), AffectY(affectY),
|
|
AffectZ(affectZ), Attract(attract), LastTime(0)
|
|
{
|
|
#ifdef _DEBUG
|
|
setDebugName("CParticleAttractionAffector");
|
|
#endif
|
|
}
|
|
|
|
|
|
//! Affects an array of particles.
|
|
void CParticleAttractionAffector::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)
|
|
{
|
|
core::vector3df direction = (Point - particlearray[i].pos).normalize();
|
|
direction *= Speed * timeDelta;
|
|
|
|
if( !Attract )
|
|
direction *= -1.0f;
|
|
|
|
if( AffectX )
|
|
particlearray[i].pos.X += direction.X;
|
|
|
|
if( AffectY )
|
|
particlearray[i].pos.Y += direction.Y;
|
|
|
|
if( AffectZ )
|
|
particlearray[i].pos.Z += direction.Z;
|
|
}
|
|
}
|
|
|
|
//! Writes attributes of the object.
|
|
void CParticleAttractionAffector::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
|
|
{
|
|
out->addVector3d("Point", Point);
|
|
out->addFloat("Speed", Speed);
|
|
out->addBool("AffectX", AffectX);
|
|
out->addBool("AffectY", AffectY);
|
|
out->addBool("AffectZ", AffectZ);
|
|
out->addBool("Attract", Attract);
|
|
}
|
|
|
|
//! Reads attributes of the object.
|
|
void CParticleAttractionAffector::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
|
|
{
|
|
Point = in->getAttributeAsVector3d("Point");
|
|
Speed = in->getAttributeAsFloat("Speed");
|
|
AffectX = in->getAttributeAsBool("AffectX");
|
|
AffectY = in->getAttributeAsBool("AffectY");
|
|
AffectZ = in->getAttributeAsBool("AffectZ");
|
|
Attract = in->getAttributeAsBool("Attract");
|
|
}
|
|
|
|
} // end namespace scene
|
|
} // end namespace irr
|
|
|
|
#endif // _IRR_COMPILE_WITH_PARTICLES_
|