mirror of https://github.com/axmolengine/axmol.git
107 lines
4.2 KiB
C++
107 lines
4.2 KiB
C++
/****************************************************************************
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Copyright (c) 2015 Chukong Technologies Inc.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "CCPUParticle3DSphereSurfaceEmitter.h"
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#include "Particle3D/ParticleUniverse/CCPUParticleSystem3D.h"
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#include "Particle3D/ParticleUniverse/CCPUParticle3DUtil.h"
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NS_CC_BEGIN
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// Constants
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const float PUParticle3DSphereSurfaceEmitter::DEFAULT_RADIUS = 10.0f;
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//-----------------------------------------------------------------------
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PUParticle3DSphereSurfaceEmitter::PUParticle3DSphereSurfaceEmitter(void) :
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PUParticle3DEmitter(),
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_radius(DEFAULT_RADIUS),
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_randomVector(Vec3::ZERO)
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{
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}
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//-----------------------------------------------------------------------
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const float PUParticle3DSphereSurfaceEmitter::getRadius(void) const
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{
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return _radius;
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}
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//-----------------------------------------------------------------------
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void PUParticle3DSphereSurfaceEmitter::setRadius(const float radius)
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{
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_radius = radius;
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}
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//-----------------------------------------------------------------------
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void PUParticle3DSphereSurfaceEmitter::initParticlePosition(PUParticle3D* particle)
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{
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// Generate a random unit vector to calculate a point on the sphere. This unit vector is
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// also used as direction vector if mAutoDirection has been set.
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_randomVector = Vec3(CCRANDOM_MINUS1_1(),
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CCRANDOM_MINUS1_1(),
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CCRANDOM_MINUS1_1());
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_randomVector.normalize();
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//ParticleSystem* sys = mParentTechnique->getParentSystem();
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//if (sys)
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{
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Mat4 rotMat;
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Mat4::createRotation(static_cast<PUParticleSystem3D *>(_particleSystem)->getDerivedOrientation(), &rotMat);
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particle->position = getDerivedPosition() + rotMat * (Vec3(_emitterScale.x * _randomVector.x, _emitterScale.y * _randomVector.y, _emitterScale.z * _randomVector.z) * _radius);
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}
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//else
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//{
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// particle->position = getDerivedPosition() + (_mEmitterScale * _randomVector * _radius);
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//}
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particle->originalPosition = particle->position;
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}
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//-----------------------------------------------------------------------
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void PUParticle3DSphereSurfaceEmitter::initParticleDirection(PUParticle3D* particle)
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{
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if (_autoDirection)
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{
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// The value of the direction vector that has been set does not have a meaning for
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// the sphere surface emitter.
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float angle = 0.0f;
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generateAngle(angle);
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if (angle != 0.0f)
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{
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//particle->direction = _randomVector.randomDeviant(angle, mUpVector);
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particle->direction = PUParticle3DUtil::randomDeviant(_randomVector, angle, _upVector);
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particle->originalDirection = particle->direction;
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}
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else
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{
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particle->direction = _randomVector;
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particle->originalDirection = particle->direction;
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}
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}
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else
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{
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// Use the standard way
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PUParticle3DEmitter::initParticleDirection(particle);
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}
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}
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PUParticle3DSphereSurfaceEmitter* PUParticle3DSphereSurfaceEmitter::create()
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{
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auto pe = new (std::nothrow) PUParticle3DSphereSurfaceEmitter();
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pe->autorelease();
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return pe;
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}
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NS_CC_END |