RedCore/cocos2d/extensions/Particle3D/PU/CCPUOnRandomObserver.cpp

/****************************************************************************
 Copyright (C) 2013 Henry van Merode. All rights reserved.
 Copyright (c) 2015-2017 Chukong Technologies Inc.
 
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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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(void) : 
    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 (std::nothrow) 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