axmol/extensions/Particle3D/PU/CCPUOnPositionObserver.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.

 http://www.cocos2d-x.org

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 of this software and associated documentation files (the "Software"), to deal
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 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

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

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 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#include "extensions/Particle3D/PU/CCPUOnPositionObserver.h"
#include "extensions/Particle3D/PU/CCPUParticleSystem3D.h"

NS_CC_BEGIN

// Constants
const Vec3 PUOnPositionObserver::DEFAULT_POSITION_THRESHOLD(0, 0, 0);

//-----------------------------------------------------------------------
PUOnPositionObserver::PUOnPositionObserver()
    : PUObserver()
    , _positionXThreshold(DEFAULT_POSITION_THRESHOLD.x)
    , _positionYThreshold(DEFAULT_POSITION_THRESHOLD.y)
    , _positionZThreshold(DEFAULT_POSITION_THRESHOLD.z)
    , _positionXThresholdSet(false)
    , _positionYThresholdSet(false)
    , _positionZThresholdSet(false)
    , _comparePositionX(CO_LESS_THAN)
    , _comparePositionY(CO_LESS_THAN)
    , _comparePositionZ(CO_LESS_THAN)
{}
//-----------------------------------------------------------------------
bool PUOnPositionObserver::observe(PUParticle3D* particle, float /*timeElapsed*/)
{
    if (!particle)
        return false;

    // Added scale in V1.3.1
    if (_positionXThresholdSet && _comparePositionX == CO_LESS_THAN &&
        particle->position.x < _positionXThreshold * _observerScale.x)
        return true;
    if (_positionXThresholdSet && _comparePositionX == CO_GREATER_THAN &&
        particle->position.x > _positionXThreshold * _observerScale.x)
        return true;
    if (_positionXThresholdSet && _comparePositionX == CO_EQUALS &&
        particle->position.x == _positionXThreshold * _observerScale.x)
        return true;

    if (_positionYThresholdSet && _comparePositionY == CO_LESS_THAN &&
        particle->position.y < _positionYThreshold * _observerScale.y)
        return true;
    if (_positionYThresholdSet && _comparePositionY == CO_GREATER_THAN &&
        particle->position.y > _positionYThreshold * _observerScale.y)
        return true;
    if (_positionYThresholdSet && _comparePositionY == CO_EQUALS &&
        particle->position.y == _positionYThreshold * _observerScale.y)
        return true;

    if (_positionZThresholdSet && _comparePositionZ == CO_LESS_THAN &&
        particle->position.z < _positionZThreshold * _observerScale.z)
        return true;
    if (_positionZThresholdSet && _comparePositionZ == CO_GREATER_THAN &&
        particle->position.z > _positionZThreshold * _observerScale.z)
        return true;
    if (_positionZThresholdSet && _comparePositionZ == CO_EQUALS &&
        particle->position.z == _positionZThreshold * _observerScale.z)
        return true;

    return false;
}

PUOnPositionObserver* PUOnPositionObserver::create()
{
    auto ppo = new PUOnPositionObserver();
    ppo->autorelease();
    return ppo;
}

void PUOnPositionObserver::copyAttributesTo(PUObserver* observer)
{
    PUObserver::copyAttributesTo(observer);

    PUOnPositionObserver* onPositionObserver   = static_cast<PUOnPositionObserver*>(observer);
    onPositionObserver->_positionXThreshold    = _positionXThreshold;
    onPositionObserver->_positionYThreshold    = _positionYThreshold;
    onPositionObserver->_positionZThreshold    = _positionZThreshold;
    onPositionObserver->_comparePositionX      = _comparePositionX;
    onPositionObserver->_comparePositionY      = _comparePositionY;
    onPositionObserver->_comparePositionZ      = _comparePositionZ;
    onPositionObserver->_positionXThresholdSet = _positionXThresholdSet;
    onPositionObserver->_positionYThresholdSet = _positionYThresholdSet;
    onPositionObserver->_positionZThresholdSet = _positionZThresholdSet;
}

NS_CC_END