1 // Copyright (C) 2010-2012 Nikolaus Gebhardt
2 // This file is part of the "Irrlicht Engine".
3 // For conditions of distribution and use, see copyright notice in irrlicht.h
4 
5 #include "CParticleScaleAffector.h"
6 #include "IAttributes.h"
7 
8 namespace irr
9 {
10 	namespace scene
11 	{
CParticleScaleAffector(const core::dimension2df & scaleTo)12 		CParticleScaleAffector::CParticleScaleAffector(const core::dimension2df& scaleTo)
13 			: ScaleTo(scaleTo)
14 		{
15 			#ifdef _DEBUG
16 			setDebugName("CParticleScaleAffector");
17 			#endif
18 		}
19 
20 
affect(u32 now,SParticle * particlearray,u32 count)21 		void CParticleScaleAffector::affect (u32 now, SParticle *particlearray, u32 count)
22 		{
23 			for(u32 i=0;i<count;i++)
24 			{
25 				const u32 maxdiff = particlearray[i].endTime - particlearray[i].startTime;
26 				const u32 curdiff = now - particlearray[i].startTime;
27 				const f32 newscale = (f32)curdiff/maxdiff;
28 				particlearray[i].size = particlearray[i].startSize+ScaleTo*newscale;
29 			}
30 		}
31 
32 
serializeAttributes(io::IAttributes * out,io::SAttributeReadWriteOptions * options) const33 		void CParticleScaleAffector::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
34 		{
35 			out->addFloat("ScaleToWidth", ScaleTo.Width);
36 			out->addFloat("ScaleToHeight", ScaleTo.Height);
37 		}
38 
39 
deserializeAttributes(io::IAttributes * in,io::SAttributeReadWriteOptions * options)40 		void CParticleScaleAffector::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
41 		{
42 			ScaleTo.Width = in->getAttributeAsFloat("ScaleToWidth");
43 			ScaleTo.Height = in->getAttributeAsFloat("ScaleToHeight");
44 		}
45 
46 
getType() const47 		E_PARTICLE_AFFECTOR_TYPE CParticleScaleAffector::getType() const
48 		{
49 			return scene::EPAT_SCALE;
50 		}
51 	}
52 }
53 
54