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ejcoumans
224
Extras/FCollada/FCDocument/FCDAnimation.cpp
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224
Extras/FCollada/FCDocument/FCDAnimation.cpp
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/*
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Copyright (C) 2005-2006 Feeling Software Inc.
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MIT License: http://www.opensource.org/licenses/mit-license.php
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*/
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/*
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Based on the FS Import classes:
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Copyright (C) 2005-2006 Feeling Software Inc
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Copyright (C) 2005-2006 Autodesk Media Entertainment
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MIT License: http://www.opensource.org/licenses/mit-license.php
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*/
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#include "StdAfx.h"
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#include "FCDocument/FCDAnimation.h"
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#include "FCDocument/FCDAnimationChannel.h"
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#include "FUtils/FUDaeParser.h"
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using namespace FUDaeParser;
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FCDAnimation::FCDAnimation(FCDocument* document) : FCDEntity(document, "Animation")
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{
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}
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FCDAnimation::~FCDAnimation()
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{
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CLEAR_POINTER_VECTOR(channels);
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CLEAR_POINTER_VECTOR(children);
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childNodes.clear();
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}
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// Creates a new animation entity sub-tree contained within this animation entity tree.
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FCDAnimation* FCDAnimation::AddChild()
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{
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FCDAnimation* animation = new FCDAnimation(GetDocument());
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children.push_back(animation);
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return animation;
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}
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// Releases an animation entity sub-tree contained by this animation entity tree.
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void FCDAnimation::ReleaseChild(FCDAnimation* animation)
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{
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FCDAnimationList::iterator itA = std::find(children.begin(), children.end(), animation);
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if (itA != children.end())
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{
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delete *itA;
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children.erase(itA);
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}
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}
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// Adds a new animation channel to this animation entity.
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FCDAnimationChannel* FCDAnimation::AddChannel()
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{
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FCDAnimationChannel* channel = new FCDAnimationChannel(GetDocument(), this);
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channels.push_back(channel);
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return channel;
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}
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// Releases an animation channel contained within this animation entity.
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void FCDAnimation::ReleaseChannel(FCDAnimationChannel* channel)
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{
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FCDAnimationChannelList::iterator itC = std::find(channels.begin(), channels.end(), channel);
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if (itC != channels.end())
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{
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delete *itC;
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channels.erase(itC);
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}
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}
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// Optimization: Look for the xml child node with the given id
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xmlNode* FCDAnimation::FindChildById(const string& _id)
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{
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FUCrc32::crc32 id = FUCrc32::CRC32(_id.c_str() + ((_id[0] == '#') ? 1 : 0));
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for (FUXmlNodeIdPairList::iterator it = childNodes.begin(); it != childNodes.end(); ++it)
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{
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if ((*it).id == id) return (*it).node;
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}
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return NULL;
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}
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// Look for an animation children with the given COLLADA Id.
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FCDEntity* FCDAnimation::FindDaeId(const string& daeId)
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{
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if (GetDaeId() == daeId) return this;
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for (FCDAnimationList::iterator it = children.begin(); it != children.end(); ++it)
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{
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FCDEntity* found = (*it)->FindDaeId(daeId);
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if (found != NULL) return found;
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}
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return NULL;
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}
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// Retrieve all the curves created under this animation element, in the animation tree
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void FCDAnimation::GetCurves(FCDAnimationCurveList& curves)
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{
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// Retrieve the curves for this animation tree element
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for (FCDAnimationChannelList::iterator it = channels.begin(); it != channels.end(); ++it)
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{
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const FCDAnimationCurveList& channelCurves = (*it)->GetCurves();
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for (FCDAnimationCurveList::const_iterator itC = channelCurves.begin(); itC != channelCurves.end(); ++itC)
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{
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curves.push_back(*itC);
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}
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}
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// Retrieve the curves for the animation nodes under this one in the animation tree
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for (FCDAnimationList::iterator it = children.begin(); it != children.end(); ++it)
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{
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(*it)->GetCurves(curves);
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}
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}
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FUStatus FCDAnimation::Link()
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{
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FUStatus status;
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// Link the child nodes and check the curves for their drivers
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for (FCDAnimationChannelList::iterator it = channels.begin(); it != channels.end(); ++it)
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{
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status.AppendStatus((*it)->CheckDriver());
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}
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for (FCDAnimationList::iterator it = children.begin(); it != children.end(); ++it)
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{
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status.AppendStatus((*it)->Link());
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}
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return status;
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}
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// Check for animation curves that need this animated as a driver
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bool FCDAnimation::LinkDriver(FCDAnimated* animated)
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{
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bool driver = false;
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// Link the child curves and child nodes
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for (FCDAnimationChannelList::iterator it = channels.begin(); it != channels.end(); ++it)
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{
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driver |= (*it)->LinkDriver(animated);
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}
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for (FCDAnimationList::iterator it = children.begin(); it != children.end(); ++it)
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{
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driver |= (*it)->LinkDriver(animated);
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}
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return driver;
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}
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// Load a Collada animation node from the XML document
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FUStatus FCDAnimation::LoadFromXML(xmlNode* node)
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{
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FUStatus status = FCDEntity::LoadFromXML(node);
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if (!status) return status;
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if (!IsEquivalent(node->name, DAE_ANIMATION_ELEMENT))
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{
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return status.Warning(FS("Animation library contains unknown element."), node->line);
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}
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// Optimization: Grab all the IDs of the child nodes, in CRC format.
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ReadChildrenIds(node, childNodes);
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// Parse all the inner <channel> elements
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xmlNodeList channelNodes;
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FindChildrenByType(node, DAE_CHANNEL_ELEMENT, channelNodes);
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channels.reserve(channelNodes.size());
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for (xmlNodeList::iterator itC = channelNodes.begin(); itC != channelNodes.end(); ++itC)
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{
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// Parse each <channel> element individually
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// They each handle reading the <sampler> and <source> elements
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FCDAnimationChannel* channel = AddChannel();
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status.AppendStatus(channel->LoadFromXML(*itC));
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if (!status)
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{
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ReleaseChannel(channel);
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}
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}
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// Parse all the hierarchical <animation> elements
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xmlNodeList animationNodes;
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FindChildrenByType(node, DAE_ANIMATION_ELEMENT, animationNodes);
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for (xmlNodeList::iterator itA = animationNodes.begin(); itA != animationNodes.end(); ++itA)
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{
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FCDAnimation* animation = AddChild();
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animation->LoadFromXML(*itA);
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}
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return status;
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}
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// Search for an animation channel for the given XML pointer in this animation node
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void FCDAnimation::FindAnimationChannels(const string& pointer, vector<FCDAnimationChannel*>& targetChannels)
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{
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// Look for channels locally
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for (FCDAnimationChannelList::iterator itChannel = channels.begin(); itChannel != channels.end(); ++itChannel)
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{
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if ((*itChannel)->GetTargetPointer() == pointer)
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{
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targetChannels.push_back(*itChannel);
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}
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}
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// Look for channel(s) within the child animations
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for (FCDAnimationList::iterator it = children.begin(); it != children.end(); ++it)
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{
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(*it)->FindAnimationChannels(pointer, targetChannels);
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}
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}
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// Write out the COLLADA animations to the document
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xmlNode* FCDAnimation::WriteToXML(xmlNode* parentNode) const
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{
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xmlNode* animationNode = WriteToEntityXML(parentNode, DAE_ANIMATION_ELEMENT);
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// Write out the local channels
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for (FCDAnimationChannelList::const_iterator itChannel = channels.begin(); itChannel != channels.end(); ++itChannel)
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{
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(*itChannel)->WriteToXML(animationNode);
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}
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// Write out the child animations
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for (FCDAnimationList::const_iterator it = children.begin(); it != children.end(); ++it)
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{
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(*it)->WriteToXML(animationNode);
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}
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FCDEntity::WriteToExtraXML(animationNode);
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return animationNode;
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}
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