axmol/cocos/editor-support/cocostudio/ActionTimeline/CCActionTimeline.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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THE SOFTWARE.
****************************************************************************/

#include "CCActionTimeline.h"

USING_NS_CC;

NS_TIMELINE_BEGIN

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

ActionTimelineData::ActionTimelineData()
    : _actionTag(0)
{
}

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


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

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

ActionTimeline::~ActionTimeline()
{
}

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

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

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

void ActionTimeline::gotoFrameAndPlay(int startIndex, int endIndex, bool loop)
{
    gotoFrameAndPlay(startIndex, endIndex, startIndex, loop);
}

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

    resume();
    gotoFrame(_currentFrame);
}

void ActionTimeline::gotoFrameAndPause(int startIndex)
{
    _startFrame = _currentFrame = startIndex;
    _time       = _currentFrame * _frameInternal;

    pause();
    gotoFrame(_currentFrame);
}

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

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

bool ActionTimeline::isPlaying() const
{
    return _playing;
}

void ActionTimeline::setCurrentFrame(int frameIndex)
{
    if (frameIndex >= _startFrame && frameIndex >= _endFrame)
    {
        _currentFrame = frameIndex;
        _time = _currentFrame*_frameInternal;
    }
    else
    {
        CCLOG("frame index is not between start frame and end frame");
    }
}

ActionTimeline* ActionTimeline::clone() const
{
    ActionTimeline* newAction = ActionTimeline::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 ActionTimeline::step(float delta)
{
    if (!_playing || _timelineMap.size() == 0 || _duration == 0)
    {
        return;
    }

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

    stepToFrame(_currentFrame);

    if(_time > _endFrame * _frameInternal)
    {
        _playing = _loop;
        if(!_playing)
            _time = _endFrame * _frameInternal;
        else           
            gotoFrameAndPlay(_startFrame, _endFrame, _loop);
    }

}

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 ActionTimeline::startWithTarget(Node *target)
{
    Action::startWithTarget(target);

    foreachNodeDescendant(target, 
        [this, target](Node* child)
    {
        ActionTimelineData* data = dynamic_cast<ActionTimelineData*>(child->getUserObject());

        if(data)
        {
            int actionTag = data->getActionTag();
            if(_timelineMap.find(actionTag) != _timelineMap.end())
            {
                auto timelines = this->_timelineMap[actionTag];
                for (auto timeline : timelines)
                {
                    timeline->setNode(child);
                }
            }
        }
    });
}

void ActionTimeline::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->setActionTimeline(this);
    }
}

void ActionTimeline::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->setActionTimeline(nullptr);
        }
    }
}

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

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


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

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

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

NS_TIMELINE_END