source: downloads/PlugIns/ParticleFX/src/OgreBoxEmitter.cpp @ 3

/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2006 Torus Knot Software Ltd
Also see acknowledgements in Readme.html

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.

You may alternatively use this source under the terms of a specific version of
the OGRE Unrestricted License provided you have obtained such a license from
Torus Knot Software Ltd.
-----------------------------------------------------------------------------
*/
#include "OgreBoxEmitter.h"
#include "OgreParticle.h"
#include "OgreException.h"
#include "OgreStringConverter.h"



namespace Ogre {


    //-----------------------------------------------------------------------
    BoxEmitter::BoxEmitter(ParticleSystem* psys)
        : AreaEmitter(psys)
    {
        initDefaults("Box");
    }
    //-----------------------------------------------------------------------
    void BoxEmitter::_initParticle(Particle* pParticle)
    {
        Vector3 xOff, yOff, zOff;

        // Call superclass
        ParticleEmitter::_initParticle(pParticle);

        xOff = Math::SymmetricRandom() * mXRange;
        yOff = Math::SymmetricRandom() * mYRange;
        zOff = Math::SymmetricRandom() * mZRange;

        pParticle->position = mPosition + xOff + yOff + zOff;
        

        // Generate complex data by reference
        genEmissionColour(pParticle->colour);
        genEmissionDirection(pParticle->direction);
        genEmissionVelocity(pParticle->direction);

        // Generate simpler data
        pParticle->timeToLive = pParticle->totalTimeToLive = genEmissionTTL();
        
    }


}