mirror of https://github.com/axmolengine/axmol.git
107 lines
4.2 KiB
C++
107 lines
4.2 KiB
C++
|
/****************************************************************************
|
||
|
Copyright (c) 2014 Chukong Technologies Inc.
|
||
|
|
||
|
http://www.cocos2d-x.org
|
||
|
|
||
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
of this software and associated documentation files (the "Software"), to deal
|
||
|
in the Software without restriction, including without limitation the rights
|
||
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
copies of the Software, and to permit persons to whom the Software is
|
||
|
furnished to do so, subject to the following conditions:
|
||
|
|
||
|
The above copyright notice and this permission notice shall be included in
|
||
|
all copies or substantial portions of the Software.
|
||
|
|
||
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
THE SOFTWARE.
|
||
|
****************************************************************************/
|
||
|
|
||
|
#include "CCPUParticle3DSphereSurfaceEmitter.h"
|
||
|
#include "3dparticle/ParticleUniverse/CCPUParticleSystem3D.h"
|
||
|
#include "3dparticle/ParticleUniverse/CCPUParticle3DUtil.h"
|
||
|
|
||
|
NS_CC_BEGIN
|
||
|
// Constants
|
||
|
const float PUParticle3DSphereSurfaceEmitter::DEFAULT_RADIUS = 10.0f;
|
||
|
|
||
|
//-----------------------------------------------------------------------
|
||
|
PUParticle3DSphereSurfaceEmitter::PUParticle3DSphereSurfaceEmitter(void) :
|
||
|
PUParticle3DEmitter(),
|
||
|
_radius(DEFAULT_RADIUS),
|
||
|
_randomVector(Vec3::ZERO)
|
||
|
{
|
||
|
}
|
||
|
//-----------------------------------------------------------------------
|
||
|
const float PUParticle3DSphereSurfaceEmitter::getRadius(void) const
|
||
|
{
|
||
|
return _radius;
|
||
|
}
|
||
|
//-----------------------------------------------------------------------
|
||
|
void PUParticle3DSphereSurfaceEmitter::setRadius(const float radius)
|
||
|
{
|
||
|
_radius = radius;
|
||
|
}
|
||
|
//-----------------------------------------------------------------------
|
||
|
void PUParticle3DSphereSurfaceEmitter::initParticlePosition(PUParticle3D* particle)
|
||
|
{
|
||
|
// Generate a random unit vector to calculate a point on the sphere. This unit vector is
|
||
|
// also used as direction vector if mAutoDirection has been set.
|
||
|
_randomVector = Vec3(CCRANDOM_MINUS1_1(),
|
||
|
CCRANDOM_MINUS1_1(),
|
||
|
CCRANDOM_MINUS1_1());
|
||
|
_randomVector.normalize();
|
||
|
//ParticleSystem* sys = mParentTechnique->getParentSystem();
|
||
|
//if (sys)
|
||
|
{
|
||
|
Mat4 rotMat;
|
||
|
Mat4::createRotation(static_cast<PUParticleSystem3D *>(_particleSystem)->getDerivedOrientation(), &rotMat);
|
||
|
particle->position = getDerivedPosition() + rotMat * (Vec3(_emitterScale.x * _randomVector.x, _emitterScale.y * _randomVector.y, _emitterScale.z * _randomVector.z) * _radius);
|
||
|
}
|
||
|
//else
|
||
|
//{
|
||
|
// particle->position = getDerivedPosition() + (_mEmitterScale * _randomVector * _radius);
|
||
|
//}
|
||
|
particle->originalPosition = particle->position;
|
||
|
}
|
||
|
//-----------------------------------------------------------------------
|
||
|
void PUParticle3DSphereSurfaceEmitter::initParticleDirection(PUParticle3D* particle)
|
||
|
{
|
||
|
if (_autoDirection)
|
||
|
{
|
||
|
// The value of the direction vector that has been set does not have a meaning for
|
||
|
// the sphere surface emitter.
|
||
|
float angle = 0.0f;
|
||
|
generateAngle(angle);
|
||
|
if (angle != 0.0f)
|
||
|
{
|
||
|
//particle->direction = _randomVector.randomDeviant(angle, mUpVector);
|
||
|
particle->direction = PUParticle3DUtil::randomDeviant(_randomVector, angle, _upVector);
|
||
|
particle->originalDirection = particle->direction;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
particle->direction = _randomVector;
|
||
|
particle->originalDirection = particle->direction;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
// Use the standard way
|
||
|
PUParticle3DEmitter::initParticleDirection(particle);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
PUParticle3DSphereSurfaceEmitter* PUParticle3DSphereSurfaceEmitter::create()
|
||
|
{
|
||
|
auto pe = new PUParticle3DSphereSurfaceEmitter();
|
||
|
pe->autorelease();
|
||
|
return pe;
|
||
|
}
|
||
|
|
||
|
NS_CC_END
|