text: /****************************************************************************
  Copyright (c) 2013 cocos2d-x.org
  Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
  
  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
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  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.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
  ****************************************************************************/
  
  #include "editor-support/cocostudio/ActionTimeline/CCActionTimeline.h"
  
  #include "editor-support/cocostudio/CCComExtensionData.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)
      , _lastFrameListener(nullptr)
  {
  }
  
  ActionTimeline::~ActionTimeline()
  {
  }
  
  bool ActionTimeline::init()
  {
      return true;
  }
  
  void ActionTimeline::play(std::string name, bool loop)
  {
      if (_animationInfos.find(name) == _animationInfos.end())
      {
          CCLOG("Can't find animation info for %s", name.c_str());
          return;
      }
  
      AnimationInfo& index = _animationInfos[name];
      gotoFrameAndPlay(index.startIndex, index.endIndex, loop);
  }
  
  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 (const auto& timelines : _timelineMap)
      {
          for(auto timeline : timelines.second)
          {      
              Timeline* newTimeline = timeline->clone();
              newAction->addTimeline(newTimeline);
          }
      }
      
      for(const auto& info : _animationInfos)
      {
          newAction->addAnimationInfo(info.second);
      }
      return newAction;
  }
  
  void ActionTimeline::step(float delta)
  {
      if (!_playing || _timelineMap.size() == 0 || _duration == 0)
      {
          return;
      }
      _time += delta * _timeSpeed;
      float deltaCurrFrameTime = std::abs(_time - _currentFrame * _frameInternal);
      if (deltaCurrFrameTime < _frameInternal)
          return;
  
      const float endtoffset = _time - _endFrame * _frameInternal;
      if (endtoffset < _frameInternal)
      {
          _currentFrame = (int)(_time / _frameInternal);
          stepToFrame(_currentFrame);
          emitFrameEndCallFuncs(_currentFrame);
          if (endtoffset >= 0 && _lastFrameListener != nullptr) // last frame 
              _lastFrameListener();
      }
      else
      {
          _playing = _loop;
          if (!_playing)
          {
              _time = _endFrame * _frameInternal;
              if (_currentFrame != _endFrame)
              {
                  _currentFrame = _endFrame;
                  stepToFrame(_currentFrame);
                  emitFrameEndCallFuncs(_currentFrame);
                  if (_lastFrameListener != nullptr)  // last frame 
                      _lastFrameListener();
              }
          }
          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);
      this->setTag(target->getTag());
  
      foreachNodeDescendant(target, 
          [this](Node* child)
      {
          ComExtensionData* data = dynamic_cast<ComExtensionData*>(child->getComponent("ComExtensionData"));
  
          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::addAnimationInfo(const AnimationInfo& animationInfo)
  {
      if (_animationInfos.find(animationInfo.name) != _animationInfos.end())
      {
          CCLOG("Animation (%s) already exists.", animationInfo.name.c_str());
          return;
      }
  
      _animationInfos[animationInfo.name] = animationInfo;
      addFrameEndCallFunc(animationInfo.endIndex, animationInfo.name, animationInfo.clipEndCallBack);
  }
  
  void ActionTimeline::removeAnimationInfo(std::string animationName)
  {
      auto clipIter = _animationInfos.find(animationName);
      if (clipIter == _animationInfos.end())
      {
          CCLOG("AnimationInfo (%s) not exists.", animationName.c_str());
          return;
      }
  
      removeFrameEndCallFunc((*clipIter).second.endIndex, animationName);
      _animationInfos.erase(animationName);
  }
  
  bool ActionTimeline::IsAnimationInfoExists(const std::string& animationName)
  {
      return _animationInfos.find(animationName) != _animationInfos.end();
  }
  
  const AnimationInfo& ActionTimeline::getAnimationInfo(const std::string &animationName)
  {
      return _animationInfos.find(animationName)->second;
  }
  
  void ActionTimeline::setAnimationEndCallFunc(const std::string animationName, std::function<void()> func)
  {
      auto clipIter = _animationInfos.find(animationName);
      if (clipIter == _animationInfos.end())
      {
          CCLOG("AnimationInfo (%s) not exists.", animationName.c_str());
          return;
      }
      clipIter->second.clipEndCallBack = func;
      addFrameEndCallFunc(clipIter->second.endIndex, animationName, func);
  }
  
  void ActionTimeline::setFrameEventCallFunc(std::function<void(Frame *)> listener)
  {
      _frameEventListener = listener;
  }
  
  void ActionTimeline::clearFrameEventCallFunc()
  {
      _frameEventListener = nullptr;
  }
  
  void ActionTimeline::setLastFrameCallFunc(std::function<void()> listener)
  {
      _lastFrameListener = listener;
  }
  
  void ActionTimeline::clearLastFrameCallFunc()
  {
      _lastFrameListener = nullptr;
  }
  
  void ActionTimeline::emitFrameEvent(Frame* frame)
  {
      if(_frameEventListener)
      {
          _frameEventListener(frame);
      }
  }
  
  void ActionTimeline::addFrameEndCallFunc(int frameIndex, const std::string& funcKey, std::function<void()> func)
  {
      if (func != nullptr)
      {
          _frameEndCallFuncs[frameIndex][funcKey] = func;
      }
  }
  
  void ActionTimeline::removeFrameEndCallFunc(int frameIndex, const std::string& funcKey)
  {
      auto endClipCallsIter = _frameEndCallFuncs.find(frameIndex);
      if (endClipCallsIter != _frameEndCallFuncs.end())
      {
          auto funcIter = (*endClipCallsIter).second.find(funcKey);
          if (funcIter != (*endClipCallsIter).second.end())
              (*endClipCallsIter).second.erase(funcKey);
          if ((*endClipCallsIter).second.empty())
              _frameEndCallFuncs.erase(endClipCallsIter);
      }
  }
  
  void ActionTimeline::removeFrameEndCallFuncs(int frameIndex)
  {
      auto endClipCallsIter = _frameEndCallFuncs.find(frameIndex);
      if (endClipCallsIter != _frameEndCallFuncs.end())
      {
          _frameEndCallFuncs.erase(endClipCallsIter);
      }
  }
  
  void ActionTimeline::clearFrameEndCallFuncs()
  {
      _frameEndCallFuncs.clear();
  }
  
  void ActionTimeline::emitFrameEndCallFuncs(int frameIndex)
  {
      auto clipEndCallsIter = _frameEndCallFuncs.find(frameIndex);
      if (clipEndCallsIter != _frameEndCallFuncs.end())
      {
          auto clipEndCalls = (*clipEndCallsIter).second;
          for (const auto& call : clipEndCalls)
              (call).second();
      }
  }
  
  void ActionTimeline::gotoFrame(int frameIndex)
  {
      if(_target == nullptr)
          return;
  
      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);
      }
  }
  
  void ActionTimeline::start()
  {
      gotoFrameAndPlay(0);
  }
  
  void ActionTimeline::stop()
  {
      pause();
  }
  NS_TIMELINE_END
  