axmol/cocos/2d/CCTimelineAction.cpp

/****************************************************************************
Copyright (c) 2013 cocos2d-x.org

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/

#include "CCTimelineAction.h"

NS_CC_BEGIN


// TimelineActionData
TimelineActionData* TimelineActionData::create(int actionTag)
{
    TimelineActionData * ret = new TimelineActionData();
    if (ret && ret->init(actionTag))
    {
        ret->autorelease();
    }
    else
    {
        CC_SAFE_DELETE(ret);
    }
    return ret;
}

TimelineActionData::TimelineActionData()
    : _actionTag(0)
{
}

bool TimelineActionData::init(int actionTag)
{
    _actionTag = actionTag;
    return true;
}


// TimelineAction
TimelineAction* TimelineAction::create()
{
    TimelineAction* object = new TimelineAction();
    if (object && object->init())
    {
        object->autorelease();
        return object;
    }
    CC_SAFE_DELETE(object);
    return nullptr;
}

TimelineAction::TimelineAction()
    : _duration(0)
    , _time(0)
    , _timeSpeed(1)
    , _frameInternal(1/60.0f)
    , _playing(false)
    , _currentFrame(0)
    , _endFrame(0)
    , _frameEventListener(nullptr)
{
}

TimelineAction::~TimelineAction()
{
}

bool TimelineAction::init()
{
    return true;
}

void TimelineAction::gotoFrameAndPlay(int startIndex)
{
    gotoFrameAndPlay(startIndex, true);
}

void TimelineAction::gotoFrameAndPlay(int startIndex, bool loop)
{
    gotoFrameAndPlay(startIndex, _duration, loop);
}

void TimelineAction::gotoFrameAndPlay(int startIndex, int endIndex, bool loop)
{
    _endFrame = endIndex;
    _loop = loop;
    _currentFrame = startIndex;
    _time = _currentFrame*_frameInternal;

    resume();
    gotoFrame(_currentFrame);
}

void TimelineAction::gotoFrameAndPause(int startIndex)
{
    _time =_currentFrame = startIndex;

    pause();
    gotoFrame(_currentFrame);
}

void TimelineAction::pause()
{
    _playing = false;
}

void TimelineAction::resume()
{
    _playing = true;
}

bool TimelineAction::isPlaying()
{
    return _playing;
}

void TimelineAction::setTimeSpeed(float speed)
{
    _timeSpeed = speed;
}

float TimelineAction::getTimeSpeed()
{
    return _timeSpeed;
}

TimelineAction* TimelineAction::clone() const
{
    TimelineAction* newAction = TimelineAction::create();
    newAction->setDuration(_duration);
    newAction->setTimeSpeed(_timeSpeed);

    for (auto timelines : _timelineMap)
    {
        for(auto timeline : timelines.second)
        {      
            Timeline* newTimeline = timeline->clone();
            newAction->addTimeline(newTimeline);
        }
    }

    return newAction;
}

void TimelineAction::step(float delta)
{
    if (!_playing || _timelineMap.size() == 0 || _duration == 0)
    {
        return;
    }

    _time += delta * _timeSpeed;
    _currentFrame = (int)(_time / _frameInternal);

    if (_currentFrame > _endFrame)
    {
        _playing = _loop;
        if(!_playing)
            _currentFrame = _time = _endFrame;
        else           
            _currentFrame = _time = 0;
    }

    stepToFrame(_currentFrame);
}

typedef std::function<void(Node*)> tCallBack;
void foreachNodeDescendant(Node* parent, tCallBack callback)
{
    callback(parent);

    auto children = parent->getChildren();
    for (auto child : children)
    {
        foreachNodeDescendant(child, callback);
    }
}

void TimelineAction::startWithTarget(Node *target)
{
    Action::startWithTarget(target);

    foreachNodeDescendant(target, 
        [this, target](Node* child)
    {
        TimelineActionData* data = dynamic_cast<TimelineActionData*>(child->getUserObject());
        int actionTag = data->getActionTag();
        if(_timelineMap.find(actionTag) != _timelineMap.end())
        {
            auto timelines = this->_timelineMap[actionTag];
            for (auto timeline : timelines)
            {
                timeline->setNode(child);
            }
        }
    });
}

void TimelineAction::addTimeline(Timeline* timeline)
{
    int tag = timeline->getActionTag();
    if (_timelineMap.find(tag) == _timelineMap.end())
    {
        _timelineMap[tag] = Vector<Timeline*>();
    }

    if (!_timelineMap[tag].contains(timeline))
    {
        _timelineList.pushBack(timeline);
        _timelineMap[tag].pushBack(timeline);
        timeline->setTimelineAction(this);
    }
}

void TimelineAction::removeTimeline(Timeline* timeline)
{
    int tag = timeline->getActionTag();
    if (_timelineMap.find(tag) != _timelineMap.end())
    {
        if(_timelineMap[tag].contains(timeline))
        {
            _timelineMap[tag].eraseObject(timeline);
            _timelineList.eraseObject(timeline);
            timeline->setTimelineAction(nullptr);
        }
    }
}

void TimelineAction::setFrameEventCallFunc(std::function<void(Frame *)> listener)
{
    _frameEventListener = listener;
}

void TimelineAction::clearFrameEventCallFunc()
{
    _frameEventListener = nullptr;
}


void TimelineAction::emitFrameEvent(Frame* frame)
{
    if(_frameEventListener)
    {
        _frameEventListener(frame);
    }
}

void TimelineAction::gotoFrame(int frameIndex)
{
    int size = _timelineList.size();
    for(int i = 0; i<size; i++)
    {      
        _timelineList.at(i)->gotoFrame(frameIndex);
    }
}

void TimelineAction::stepToFrame(int frameIndex)
{
    int size = _timelineList.size();
    for(int i = 0; i<size; i++)
    {      
        _timelineList.at(i)->stepToFrame(frameIndex);
    }
}

NS_CC_END