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OgrePointEmitter.cpp

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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004     (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://www.ogre3d.org/
00006 
00007 Copyright © 2000-2002 The OGRE Team
00008 Also see acknowledgements in Readme.html
00009 
00010 This program is free software; you can redistribute it and/or modify it under
00011 the terms of the GNU Lesser General Public License as published by the Free Software
00012 Foundation; either version 2 of the License, or (at your option) any later
00013 version.
00014 
00015 This program is distributed in the hope that it will be useful, but WITHOUT
00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
00018 
00019 You should have received a copy of the GNU Lesser General Public License along with
00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
00022 http://www.gnu.org/copyleft/lesser.txt.
00023 -----------------------------------------------------------------------------
00024 */
00025 #include "OgrePointEmitter.h"
00026 #include "OgreParticle.h"
00027 
00028 
00029 
00030 namespace Ogre {
00031 
00032     //-----------------------------------------------------------------------
00033     PointEmitter::PointEmitter()
00034     {
00035         mType = "Point";
00036         // Set up parameters
00037         if (createParamDictionary("PointEmitter"))
00038         {
00039             addBaseParameters();
00040         }
00041         // No custom parameters
00042     }
00043     //-----------------------------------------------------------------------
00044     void PointEmitter::_initParticle(Particle* pParticle)
00045     {
00046         // Very simple emitter, uses default implementations with no modification
00047 
00048         // Call superclass
00049         ParticleEmitter::_initParticle(pParticle);
00050 
00051         // Point emitter emits from own position
00052         pParticle->mPosition = mPosition;
00053 
00054         // Generate complex data by reference
00055         genEmissionColour(pParticle->mColour);
00056         genEmissionDirection(pParticle->mDirection);
00057         genEmissionVelocity(pParticle->mDirection);
00058 
00059         // Generate simpler data
00060         pParticle->mTimeToLive = pParticle->mTotalTimeToLive = genEmissionTTL();
00061         
00062     }
00063     //-----------------------------------------------------------------------
00064     unsigned short PointEmitter::_getEmissionCount(Real timeElapsed)
00065     {
00066         // Use basic constant emission 
00067         return genConstantEmissionCount(timeElapsed);
00068     }
00069 }
00070 
00071 

Copyright © 2002-2003 by The OGRE Team
Last modified Wed Jan 21 00:10:22 2004