axmol/extensions/Particle3D/PU/CCPUOnRandomObserver.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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 all copies or substantial portions of the Software.

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#include "extensions/Particle3D/PU/CCPUOnRandomObserver.h"
#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"

NS_CC_BEGIN

// Constants
const float PUOnRandomObserver::DEFAULT_THRESHOLD = 0.5f;

//-----------------------------------------------------------------------
PUOnRandomObserver::PUOnRandomObserver() : PUObserver(), _threshold(DEFAULT_THRESHOLD) {}
//-----------------------------------------------------------------------
void PUOnRandomObserver::preUpdateObserver(float deltaTime)
{
    // Call parent
    PUObserver::preUpdateObserver(deltaTime);

    // Handle the _observe here
    handleObserve(0, deltaTime);
}
//-----------------------------------------------------------------------
void PUOnRandomObserver::updateObserver(PUParticle3D* /*particle*/, float /*deltaTime*/, bool /*firstParticle*/)
{
    // No need to determine per particle
}
//-----------------------------------------------------------------------
bool PUOnRandomObserver::observe(PUParticle3D* /*particle*/, float /*timeElapsed*/)
{
    return (CCRANDOM_0_1() > _threshold);
}

PUOnRandomObserver* PUOnRandomObserver::create()
{
    auto pro = new PUOnRandomObserver();
    pro->autorelease();
    return pro;
}

void PUOnRandomObserver::copyAttributesTo(PUObserver* observer)
{
    PUObserver::copyAttributesTo(observer);
    PUOnRandomObserver* onRandomObserver = static_cast<PUOnRandomObserver*>(observer);
    onRandomObserver->_threshold         = _threshold;
}

NS_CC_END