axmol/extensions/Particle3D/PU/CCPUDoAffectorEventHandler.cpp

/****************************************************************************
 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.

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#include "extensions/Particle3D/PU/CCPUDoAffectorEventHandler.h"
#include "extensions/Particle3D/PU/CCPUAffector.h"
#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"

NS_CC_BEGIN
// Constants
const bool PUDoAffectorEventHandler::DEFAULT_PRE_POST = false;

//-----------------------------------------------------------------------
PUDoAffectorEventHandler::PUDoAffectorEventHandler() : PUEventHandler(), _prePost(DEFAULT_PRE_POST) {}
//-----------------------------------------------------------------------
void PUDoAffectorEventHandler::handle(PUParticleSystem3D* particleSystem, PUParticle3D* particle, float timeElapsed)
{
    /** Search for the affector.
     */
    PUParticleSystem3D* technique = 0;
    PUAffector* affector          = particleSystem->getAffector(_affectorName);
    if (!affector)
    {
        // Search all techniques in this ParticleSystem for an affector with the correct name
        PUParticleSystem3D* system = particleSystem->getParentParticleSystem();
        auto children              = system->getChildren();
        for (auto iter : children)
        {
            technique = dynamic_cast<PUParticleSystem3D*>(iter);
            if (technique)
            {
                affector = technique->getAffector(_affectorName);
                if (affector)
                {
                    break;
                }
            }
        }
    }

    if (affector)
    {
        // Call the affector even if it has enabled set to 'false'.
        if (_prePost)
        {
            affector->preUpdateAffector(timeElapsed);
            affector->updatePUAffector(particle, timeElapsed);
            affector->postUpdateAffector(timeElapsed);
        }
        else
        {
            affector->updatePUAffector(particle, timeElapsed);
        }
    }
}

PUDoAffectorEventHandler* PUDoAffectorEventHandler::create()
{
    auto peh = new PUDoAffectorEventHandler();
    peh->autorelease();
    return peh;
}

void PUDoAffectorEventHandler::copyAttributesTo(PUEventHandler* eventHandler)
{
    PUEventHandler::copyAttributesTo(eventHandler);
    PUDoAffectorEventHandler* doAffectorEventHandler = static_cast<PUDoAffectorEventHandler*>(eventHandler);
    doAffectorEventHandler->setAffectorName(_affectorName);
    doAffectorEventHandler->setPrePost(_prePost);
}

NS_CC_END