axmol/extensions/Particle3D/PU/CCPUPositionEmitter.cpp

146 lines
5.0 KiB
C++
Raw Normal View History

2015-02-11 18:14:22 +08:00
/****************************************************************************
2015-03-02 16:05:26 +08:00
Copyright (C) 2013 Henry van Merode. All rights reserved.
Copyright (c) 2015-2016 Chukong Technologies Inc.
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
2021-12-25 10:04:45 +08:00
2015-02-11 18:14:22 +08:00
http://www.cocos2d-x.org
2021-12-25 10:04:45 +08:00
2015-02-11 18:14:22 +08:00
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:
2021-12-25 10:04:45 +08:00
2015-02-11 18:14:22 +08:00
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
2021-12-25 10:04:45 +08:00
2015-02-11 18:14:22 +08:00
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.
****************************************************************************/
2015-03-05 13:24:06 +08:00
#include "CCPUPositionEmitter.h"
#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"
2015-02-11 18:14:22 +08:00
NS_CC_BEGIN
// Constants
2015-03-05 13:24:06 +08:00
const bool PUPositionEmitter::DEFAULT_RANDOMIZE = true;
2015-02-11 18:14:22 +08:00
//-----------------------------------------------------------------------
2021-12-25 10:04:45 +08:00
PUPositionEmitter::PUPositionEmitter() : PUEmitter(), _randomized(DEFAULT_RANDOMIZE), _index(0) {}
2015-02-11 18:14:22 +08:00
//-----------------------------------------------------------------------
2015-03-05 13:24:06 +08:00
bool PUPositionEmitter::isRandomized() const
2015-02-11 18:14:22 +08:00
{
return _randomized;
}
//-----------------------------------------------------------------------
2015-03-05 13:24:06 +08:00
void PUPositionEmitter::setRandomized(bool randomized)
2015-02-11 18:14:22 +08:00
{
_randomized = randomized;
}
//-----------------------------------------------------------------------
const std::vector<Vec3>& PUPositionEmitter::getPositions() const
2015-02-11 18:14:22 +08:00
{
return _positionList;
}
//-----------------------------------------------------------------------
2015-03-05 13:24:06 +08:00
void PUPositionEmitter::addPosition(const Vec3& position)
2015-02-11 18:14:22 +08:00
{
_positionList.push_back(position);
}
//-----------------------------------------------------------------------
void PUPositionEmitter::notifyStart()
2015-02-11 18:14:22 +08:00
{
2015-03-05 13:24:06 +08:00
PUEmitter::notifyStart();
2015-02-11 18:14:22 +08:00
_index = 0;
}
//-----------------------------------------------------------------------
void PUPositionEmitter::removeAllPositions()
2015-02-11 18:14:22 +08:00
{
_index = 0;
_positionList.clear();
}
//-----------------------------------------------------------------------
2015-03-05 13:24:06 +08:00
unsigned short PUPositionEmitter::calculateRequestedParticles(float timeElapsed)
2015-02-11 18:14:22 +08:00
{
// Fast rejection
if (_positionList.empty())
return 0;
if (_randomized)
{
2015-03-05 13:24:06 +08:00
return PUEmitter::calculateRequestedParticles(timeElapsed);
2015-02-11 18:14:22 +08:00
}
else if (_index < _positionList.size())
{
2015-03-05 13:24:06 +08:00
unsigned short requested = PUEmitter::calculateRequestedParticles(timeElapsed);
2021-12-25 10:04:45 +08:00
unsigned short size = static_cast<unsigned short>(_positionList.size() - _index);
2015-02-11 18:14:22 +08:00
if (requested > size)
{
return size;
}
else
{
return requested;
}
}
return 0;
}
//-----------------------------------------------------------------------
2015-03-05 13:24:06 +08:00
void PUPositionEmitter::initParticlePosition(PUParticle3D* particle)
2015-02-11 18:14:22 +08:00
{
// Fast rejection
if (_positionList.empty())
return;
2021-12-25 10:04:45 +08:00
/** Remark: Don't take the orientation of the node into account, because the positions shouldn't be affected by the
* rotated node.
*/
2015-02-11 18:14:22 +08:00
if (_randomized)
{
size_t i = (size_t)(CCRANDOM_0_1() * (_positionList.size() - 1));
2021-12-25 10:04:45 +08:00
particle->position =
getDerivedPosition() + Vec3(_emitterScale.x * _positionList[i].x, _emitterScale.y * _positionList[i].y,
_emitterScale.z * _positionList[i].z);
2015-02-11 18:14:22 +08:00
}
else if (_index < _positionList.size())
{
2021-12-25 10:04:45 +08:00
particle->position = getDerivedPosition() + Vec3(_emitterScale.x * _positionList[_index].x,
_emitterScale.y * _positionList[_index].y,
_emitterScale.z * _positionList[_index].z);
2015-02-11 18:14:22 +08:00
_index++;
}
particle->originalPosition = particle->position;
}
2015-03-05 13:24:06 +08:00
PUPositionEmitter* PUPositionEmitter::create()
2015-02-11 18:14:22 +08:00
{
2021-12-08 00:11:53 +08:00
auto pe = new PUPositionEmitter();
2015-02-11 18:14:22 +08:00
pe->autorelease();
return pe;
}
2021-12-25 10:04:45 +08:00
void PUPositionEmitter::copyAttributesTo(PUEmitter* emitter)
2015-03-02 13:07:32 +08:00
{
2015-03-05 13:24:06 +08:00
PUEmitter::copyAttributesTo(emitter);
PUPositionEmitter* positionEmitter = static_cast<PUPositionEmitter*>(emitter);
2021-12-25 10:04:45 +08:00
positionEmitter->_randomized = _randomized;
positionEmitter->_positionList = _positionList;
2015-03-02 13:07:32 +08:00
}
2015-03-05 13:24:06 +08:00
PUPositionEmitter* PUPositionEmitter::clone()
2015-03-02 13:07:32 +08:00
{
2015-03-05 13:24:06 +08:00
auto be = PUPositionEmitter::create();
2015-03-02 13:07:32 +08:00
copyAttributesTo(be);
return be;
}
2015-03-03 15:57:03 +08:00
NS_CC_END