source/Irrlicht/CParticleRotationAffector.cpp

   1 // Copyright (C) 2002-2012 Nikolaus Gebhardt\r
   2 // This file is part of the "Irrlicht Engine".\r
   3 // For conditions of distribution and use, see copyright notice in irrlicht.h\r
   4 \r
   5 #include "CParticleRotationAffector.h"\r
   6 \r
   7 #include "IrrCompileConfig.h"\r
   8 #ifdef _IRR_COMPILE_WITH_PARTICLES_\r
   9 \r
  10 #include "IAttributes.h"\r
  11 \r
  12 namespace irr\r
  13 {\r
  14 namespace scene\r
  15 {\r
  16 \r
  17 //! constructor\r
  18 CParticleRotationAffector::CParticleRotationAffector( const core::vector3df& speed, const core::vector3df& pivotPoint )\r
  19                 : PivotPoint(pivotPoint), Speed(speed), LastTime(0)\r
  20 {\r
  21         #ifdef _DEBUG\r
  22         setDebugName("CParticleRotationAffector");\r
  23         #endif\r
  24 }\r
  25 \r
  26 \r
  27 //! Affects an array of particles.\r
  28 void CParticleRotationAffector::affect(u32 now, SParticle* particlearray, u32 count)\r
  29 {\r
  30         if( LastTime == 0 )\r
  31         {\r
  32                 LastTime = now;\r
  33                 return;\r
  34         }\r
  35 \r
  36         f32 timeDelta = ( now - LastTime ) / 1000.0f;\r
  37         LastTime = now;\r
  38 \r
  39         if( !Enabled )\r
  40                 return;\r
  41 \r
  42         for(u32 i=0; i<count; ++i)\r
  43         {\r
  44                 if( Speed.X != 0.0f )\r
  45                         particlearray[i].pos.rotateYZBy( timeDelta * Speed.X, PivotPoint );\r
  46 \r
  47                 if( Speed.Y != 0.0f )\r
  48                         particlearray[i].pos.rotateXZBy( timeDelta * Speed.Y, PivotPoint );\r
  49 \r
  50                 if( Speed.Z != 0.0f )\r
  51                         particlearray[i].pos.rotateXYBy( timeDelta * Speed.Z, PivotPoint );\r
  52         }\r
  53 }\r
  54 \r
  55 //! Writes attributes of the object.\r
  56 void CParticleRotationAffector::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const\r
  57 {\r
  58         out->addVector3d("PivotPoint", PivotPoint);\r
  59         out->addVector3d("Speed", Speed);\r
  60 }\r
  61 \r
  62 //! Reads attributes of the object.\r
  63 void CParticleRotationAffector::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)\r
  64 {\r
  65         PivotPoint = in->getAttributeAsVector3d("PivotPoint");\r
  66         Speed = in->getAttributeAsVector3d("Speed");\r
  67 }\r
  68 \r
  69 } // end namespace scene\r
  70 } // end namespace irr\r
  71 \r
  72 #endif // _IRR_COMPILE_WITH_PARTICLES_\r