void OgreApplication::SetupAnimation(Ogre::String object_name){
/* Retrieve scene manager and root scene node */
Ogre::SceneManager* scene_manager = ogre_root_->getSceneManager("MySceneManager");
Ogre::SceneNode* root_scene_node = scene_manager->getRootSceneNode();
/* Set up animation */
Ogre::Real duration = Ogre::Math::TWO_PI;
Ogre::Real num_steps = 36;
Ogre::Real step = duration/num_steps;
Ogre::Animation* animation = scene_manager->createAnimation("Animation", duration);
animation->setInterpolationMode(Ogre::Animation::IM_LINEAR);
Ogre::Node *object_scene_node = root_scene_node->getChild(object_name);
Ogre::NodeAnimationTrack* track = animation->createNodeTrack(0, object_scene_node);
/* Set up frames for animation */
Ogre::TransformKeyFrame* key;
Ogre::Quaternion quat;
for (int i = 0; i < num_steps; i++){
Ogre::Real current = ((float) i) * step;
key = track->createNodeKeyFrame(current);
quat.FromAngleAxis(Ogre::Radian(-current), Ogre::Vector3(0, 1, 0));
key->setRotation(quat);
key->setScale(Ogre::Vector3(0.5, 0.5, 0.5));
}
/* Create animation state */
animation_state_ = scene_manager->createAnimationState("Animation");
animation_state_->setEnabled(true);
animation_state_->setLoop(true);
/* Turn on animating flag */
animating_ = true;
}
void SkeletonSerializerEx::readAnimationTrack(
Ogre::DataStreamPtr& stream, Ogre::Animation* anim, Ogre::Skeleton* pSkel)
{
// unsigned short boneIndex : Index of bone to apply to
unsigned short boneHandle;
readShorts(stream, &boneHandle, 1);
// Find bone
Ogre::Bone *targetBone = pSkel->getBone(boneHandle);
// Create track
Ogre::NodeAnimationTrack* pTrack = anim->createNodeTrack(boneHandle, targetBone);
// Keep looking for nested keyframes
if (!stream->eof())
{
unsigned short streamID = readChunk(stream);
while((streamID == Ogre::SKELETON_ANIMATION_TRACK_KEYFRAME || streamID == 0x4120 )
&& !stream->eof())
{
if (streamID == 0x4120)
{
unsigned short len;
unsigned short flags;
readShorts(stream, &len, 1);
readShorts(stream, &flags, 1);
float time;
for (int i = 0; i < len; i += 1)
{
readFloats(stream, &time, 1);
Ogre::TransformKeyFrame *kf = pTrack->createNodeKeyFrame(time);
Ogre::Quaternion rot = Ogre::Quaternion::IDENTITY;
if (flags & 1)
{
readObject(stream, rot);
}
kf->setRotation(rot);
Ogre::Vector3 trans = Ogre::Vector3::ZERO;
if (flags & 2)
{
readObject(stream, trans);
}
kf->setTranslate(trans);
// 为正确解析天龙八部模型的骨骼动画
Ogre::Vector3 scale = Ogre::Vector3::UNIT_SCALE;
if (flags & 4)
{
readObject(stream, scale);
}
kf->setScale(scale);
}
}
else
readKeyFrame(stream, pTrack, pSkel);
if (!stream->eof())
{
// Get next stream
streamID = readChunk(stream);
}
}
if (!stream->eof())
{
// Backpedal back to start of this stream if we've found a non-keyframe
stream->skip(-STREAM_OVERHEAD_SIZE);
}
}
}
/* Function used to load an AnimationState to a sceneNode.
* Params:
* @scnManager the SceneManager
* @node The SceneNode to load the AnimationStates
* @elem The TiXmlElement where is the animation
* Returns:
* anim On success
* 0 On error
*/
bool Util::getAnimation(Ogre::SceneManager *scnManager,
Ogre::SceneNode *node,
TiXmlElement *elem,
std::list<Ogre::AnimationState *> &animList)
{
ASSERT(scnManager);
ASSERT(node);
ASSERT(elem);
if(Ogre::String(elem->Value()) != "animations") {
debug("Invalid animation xml: %s \n", elem->Value());
return false;
}
animList.clear();
TiXmlElement *pElement = elem->FirstChildElement("animation");
if(!pElement){
debug("No animations found\n");
return false;
}
while(pElement){
TiXmlElement *actualElement = pElement;
Ogre::String nombreanimacion = actualElement->Attribute("name");
Ogre::String activada = actualElement->Attribute("enable");
Ogre::String loop = actualElement->Attribute("loop");
Ogre::String modointerpolacion = actualElement->Attribute("interpolationMode");
Ogre::String modointerpolacionrotacion = actualElement->Attribute("rotationInterpolationMode");
Ogre::Real longitud= Ogre::StringConverter::parseReal(actualElement->Attribute("length"));
Ogre::SceneManager *sceneMgr = scnManager;
Ogre::Animation *animrueda = sceneMgr->createAnimation(nombreanimacion,longitud);
if (modointerpolacion == "spline") {
animrueda->setInterpolationMode(Ogre::Animation::IM_SPLINE);
} else //linear
{
animrueda->setInterpolationMode(Ogre::Animation::IM_LINEAR);
}
if (modointerpolacionrotacion == "spherical") {
animrueda->setRotationInterpolationMode(Ogre::Animation::RIM_SPHERICAL);
} else //linear
{
animrueda->setRotationInterpolationMode(Ogre::Animation::RIM_LINEAR);
}
Ogre::NodeAnimationTrack *track = animrueda->createNodeTrack(
animrueda->getNumNodeTracks() + 1, node);
actualElement = actualElement->FirstChildElement();
do {
Ogre::Real tiempo = Ogre::StringConverter::parseReal(
actualElement->Attribute("time"));
Ogre::TransformKeyFrame *kf = track->createNodeKeyFrame(tiempo);
kf->setTranslate(
parseVector3(actualElement->FirstChildElement("translation")));
kf->setRotation(
parseQuaternion(
actualElement->FirstChildElement("rotation")));
kf->setScale(
parseVector3(
actualElement->FirstChildElement("scale")));
} while (actualElement = actualElement->NextSiblingElement());
// Create the animation and put it in the list
Ogre::AnimationState *as = scnManager->createAnimationState(nombreanimacion);
as->setEnabled(false);
as->setLoop(false);
ASSERT(as);
animList.push_back(as);
pElement = pElement->NextSiblingElement("animation");
}
return true;
}
