axmol/extensions/Particle3D/CCParticleSystem3D.cpp

/****************************************************************************
 Copyright (c) 2015-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

 https://axmolengine.github.io/

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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

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#include "CCParticleSystem3D.h"
#include "CCParticle3DEmitter.h"
#include "CCParticle3DAffector.h"
#include "CCParticle3DRender.h"

NS_AX_BEGIN

Particle3D::Particle3D() : color(Vec4::ONE), rt_uv(Vec2::ONE), width(1.0f), height(1.0f), depth(1.0f) {}

Particle3D::~Particle3D() {}

ParticleSystem3D::ParticleSystem3D()
    : _state(State::STOP)
    , _emitter(nullptr)
    , _render(nullptr)
    , _aliveParticlesCnt(0)
    , _particleQuota(0)
    , _blend(BlendFunc::ALPHA_NON_PREMULTIPLIED)
    , _keepLocal(false)
    , _isEnabled(true)
{}
ParticleSystem3D::~ParticleSystem3D()
{
    // stopParticle();
    removeAllAffector();
    AX_SAFE_RELEASE(_emitter);
    AX_SAFE_RELEASE(_render);
}

void ParticleSystem3D::startParticleSystem()
{
    if (_state != State::RUNNING)
    {
        if (_render)
            _render->notifyStart();

        scheduleUpdate();
        _state = State::RUNNING;
    }
}

void ParticleSystem3D::stopParticleSystem()
{
    if (_state != State::STOP)
    {
        if (_render)
            _render->notifyStop();

        unscheduleUpdate();
        _state = State::STOP;
    }
}

void ParticleSystem3D::pauseParticleSystem()
{
    if (_state == State::RUNNING)
    {
        _state = State::PAUSE;
    }
}

void ParticleSystem3D::resumeParticleSystem()
{
    if (_state == State::PAUSE)
    {
        _state = State::RUNNING;
    }
}

void ParticleSystem3D::setEmitter(Particle3DEmitter* emitter)
{
    if (_emitter != emitter)
    {
        AX_SAFE_RELEASE(_emitter);
        emitter->_particleSystem = this;
        _emitter                 = emitter;
        AX_SAFE_RETAIN(_emitter);
    }
}

void ParticleSystem3D::setRender(Particle3DRender* render)
{
    if (_render != render)
    {
        AX_SAFE_RELEASE(_render);
        _render                  = render;
        _render->_particleSystem = this;
        AX_SAFE_RETAIN(_render);
    }
}

void ParticleSystem3D::addAffector(Particle3DAffector* affector)
{
    if (affector && std::find(_affectors.begin(), _affectors.end(), affector) == _affectors.end())
    {
        affector->_particleSystem = this;
        affector->retain();
        _affectors.emplace_back(affector);
    }
}

void ParticleSystem3D::removeAffector(int index)
{
    AXASSERT((unsigned int)index < _affectors.size(), "wrong index");
    _affectors.erase(_affectors.begin() + index);
}

void ParticleSystem3D::removeAllAffector()
{
    // release all affectors
    for (auto&& it : _affectors)
    {
        it->release();
    }
    _affectors.clear();
}

Particle3DAffector* ParticleSystem3D::getAffector(int index)
{
    AXASSERT(index < (int)_affectors.size(), "wrong index");
    return _affectors[index];
}

void ParticleSystem3D::update(float delta)
{
    if (_state != State::RUNNING)
        return;

    Particle3D* particle = _particlePool.getFirst();
    while (particle)
    {
        if (_emitter)
        {
            _emitter->updateEmitter(particle, delta);
        }

        for (auto&& it : _affectors)
        {
            it->updateAffector(particle, delta);
        }

        particle = _particlePool.getNext();
    }
}

void ParticleSystem3D::draw(Renderer* renderer, const Mat4& transform, uint32_t /*flags*/)
{
    if (getAliveParticleCount() && _render)
    {
        _render->render(renderer, transform, this);
    }
}

void ParticleSystem3D::setBlendFunc(const BlendFunc& blendFunc)
{
    _blend = blendFunc;
}

const BlendFunc& ParticleSystem3D::getBlendFunc() const
{
    return _blend;
}

void ParticleSystem3D::setParticleQuota(unsigned int quota)
{
    _particleQuota = quota;
}

unsigned int ParticleSystem3D::getParticleQuota() const
{
    return _particleQuota;
}

void ParticleSystem3D::setKeepLocal(bool keepLocal)
{
    _keepLocal = keepLocal;
}

void ParticleSystem3D::setEnabled(bool enabled)
{
    _isEnabled = enabled;
}

NS_AX_END