mirror of https://github.com/axmolengine/axmol.git
121 lines
4.6 KiB
C++
121 lines
4.6 KiB
C++
/****************************************************************************
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Copyright (C) 2013 Henry van Merode. All rights reserved.
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Copyright (c) 2015-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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https://axys1.github.io/
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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 "CCPUSphereSurfaceEmitter.h"
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#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"
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#include "extensions/Particle3D/PU/CCPUUtil.h"
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NS_AX_BEGIN
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// Constants
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const float PUSphereSurfaceEmitter::DEFAULT_RADIUS = 10.0f;
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//-----------------------------------------------------------------------
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PUSphereSurfaceEmitter::PUSphereSurfaceEmitter() : PUEmitter(), _radius(DEFAULT_RADIUS) {}
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//-----------------------------------------------------------------------
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float PUSphereSurfaceEmitter::getRadius() const
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{
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return _radius;
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}
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//-----------------------------------------------------------------------
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void PUSphereSurfaceEmitter::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 PUSphereSurfaceEmitter::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.set(AXRANDOM_MINUS1_1(), AXRANDOM_MINUS1_1(), AXRANDOM_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 =
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getDerivedPosition() + rotMat * (Vec3(_emitterScale.x * _randomVector.x, _emitterScale.y * _randomVector.y,
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_emitterScale.z * _randomVector.z) *
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_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 PUSphereSurfaceEmitter::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 = PUUtil::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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PUEmitter::initParticleDirection(particle);
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}
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}
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PUSphereSurfaceEmitter* PUSphereSurfaceEmitter::create()
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{
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auto pe = new PUSphereSurfaceEmitter();
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pe->autorelease();
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return pe;
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}
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void PUSphereSurfaceEmitter::copyAttributesTo(PUEmitter* emitter)
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{
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PUEmitter::copyAttributesTo(emitter);
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PUSphereSurfaceEmitter* sphereSurfaceEmitter = static_cast<PUSphereSurfaceEmitter*>(emitter);
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sphereSurfaceEmitter->_radius = _radius;
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}
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PUSphereSurfaceEmitter* PUSphereSurfaceEmitter::clone()
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{
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auto be = PUSphereSurfaceEmitter::create();
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copyAttributesTo(be);
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return be;
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}
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NS_AX_END
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