bool SceneSerializer::AddVector3Attribute(XMLWriter& writer, const float x, const float y, const float z)
{
if(writer.AddAttribute(X, x))
if(writer.AddAttribute(Y, y))
if(writer.AddAttribute(Z, z))
return true;
return false;
}
void SceneSerializer::SerializeGameObject(XMLWriter& writer, const SharedGameObject gameObject)
{
Ogre::Vector3 position = gameObject->GetWorldPosition();
Ogre::Vector3 scale = gameObject->GetWorldScale();
Ogre::Quaternion rotation = gameObject->GetWorldOrientation();
writer.CreateNode(GameObjectNode, std::string(""), true); writer.AddAttribute(ObjectName, gameObject->GetName());
writer.AddAttribute(ObjectTag, gameObject->tag, false, false);
//game object Transform
writer.CreateNode(Position);
AddVector3Attribute(writer, position);
writer.PopNode();
writer.CreateNode(Rotation, gameObject->GetInheritOrientation());
AddVector4Attribute(writer, rotation.x, rotation.y, rotation.z, rotation.w);
writer.PopNode();
writer.CreateNode(Scale, gameObject->GetInheritScale());
AddVector3Attribute(writer, scale);
writer.PopNode();
for (auto compIter = gameObject->components.begin(); compIter != gameObject->components.end(); ++compIter)
{
switch (compIter->second->GetComponentType())
{
case Component::AUDIO_COMPONENT:
break;
case Component::MESH_RENDER_COMPONENT:
SerializeMeshRenderComponent(writer, (MeshRenderComponent*)compIter->second);
break;
case Component::PARTICLE_COMPONENT:
SerializeParticleComponent(writer, (ParticleComponent*)compIter->second);
break;
case Component::RIGID_BODY_COMPONENT:
SerializeRigidBodyComponent(writer, (RigidBodyComponent*)compIter->second);
break;
default:
break;
}
}
//Serialize Child Game Objects
for (auto childStart = gameObject->children.begin();
childStart != gameObject->children.end(); ++childStart)
{
SerializeGameObject(writer, *childStart);
}
writer.PopNode();
}
bool SceneSerializer::SerializeRigidBodyComponent(XMLWriter& writer, const RigidBodyComponent* rigidBody)
{
using namespace physx;
RigidBodyComponent::RigidBodyType rigidType = rigidBody->GetBodyType();
if(rigidType == RigidBodyComponent::NONE)
return false;
//if rigid body node created
if(writer.CreateNode(RigidBodyComponen))
{
//write enabled state
writer.AddAttribute(Enabled, rigidBody->IsEnabled());
writer.AddAttribute(DynamicBodyType, rigidBody->GetBodyType() == RigidBodyComponent::DYNAMIC);
physx::PxRigidActor* actor = NULL;
if(rigidBody->GetBodyType() == RigidBodyComponent::DYNAMIC)
actor = rigidBody->GetDynamicActor();
else if(rigidBody->GetBodyType() == RigidBodyComponent::STATIC)
actor = rigidBody->GetStaticActor();
//if no actor, pop off the rigid body component
if(!actor)
writer.PopNode();
std::string shapeName = "";
PxU32 numShapes = actor->getNbShapes();
PxShape** shapes = new physx::PxShape*[numShapes];
actor->getShapes(shapes, numShapes);
//loop through the shapes
for (PxU32 i = 0; i < numShapes; i++)
{
//if the shape can't be found, move next iteration
if(!PhysXDataManager::GetSingletonPtr()->FindShapeName(shapes[i], shapeName))
continue;
//Create the shape node and store its reference
writer.CreateNode(RigidShape);
writer.AddAttribute(ShapeName, shapeName);
writer.PopNode();
}
delete[] shapes;
}
writer.PopNode();
return true;
}
bool SceneSerializer::SerializeParticleEmitter(XMLWriter& writer, const ParticleComponent* particles)
{
std::shared_ptr<AbstractParticleEmitter> emitter = particles->particleSystem->GetEmitter();
//Next add emitter
AbstractParticleEmitter::ParticleEmitterType emitterType = emitter->GetEmitterType();
bool emitterNodeCreated = false;
//Create node and add any type specific attributes required
switch (emitterType)
{
case AbstractParticleEmitter::POINT_EMITTER:
emitterNodeCreated = writer.CreateNode(PointEmitter);
break;
case AbstractParticleEmitter::LINE_EMITTER:
emitterNodeCreated = writer.CreateNode(LineEmitter);
break;
case AbstractParticleEmitter::MESH_EMITTER:
emitterNodeCreated = writer.CreateNode(MeshEmitter);
break;
}
//write abstract emitter properties
if(emitterNodeCreated)
{
writer.AddAttribute(PPS, emitter->particlesPerSecond);
writer.AddAttribute(MinEmitSpeed, emitter->minSpeed);
writer.AddAttribute(MaxEmitSpeed, emitter->maxSpeed);
writer.AddAttribute(Duration, emitter->duration);
writer.CreateNode(Position);
AddVector3Attribute(writer, emitter->position);
writer.PopNode();
writer.CreateNode(MinEmitDirection);
AddVector3Attribute(writer, emitter->minimumDirection);
writer.PopNode();
writer.CreateNode(MaxEmitDirection);
AddVector3Attribute(writer, emitter->maximumDirection);
writer.PopNode();
writer.PopNode();//Pop off emitter node
return true;
}
return false;
}
bool SceneSerializer::SerializeMeshRenderComponent(XMLWriter& writer, const MeshRenderComponent* renderer)
{
//create render component node, setting enabled as its value
if(writer.CreateNode(MeshRenderComponen))
{
writer.AddAttribute(Enabled, renderer->IsEnabled());
writer.AddAttribute(EntityName, renderer->GetMeshName(), false, false);
long long numSubmesh = renderer->entity->getNumSubEntities();
for (long long i = 0; i < numSubmesh; i++)
{
writer.CreateNode(Subentity);
writer.AddAttribute(SubentityID, i);
writer.AddAttribute(SubentityMaterial, renderer->entity->getSubEntity(i)->getMaterialName());
writer.PopNode();
}
writer.PopNode();
return true;
}
return false;
}
bool SceneSerializer::SerializeParticleComponent(XMLWriter& writer, const ParticleComponent* particles)
{
if(writer.CreateNode(ParticleComponen))
{
writer.AddAttribute(Enabled, particles->IsEnabled());
writer.AddAttribute(ParticleSpace, particles->GetTransformationSpace(), false);//Store transformation space
FluidAndParticleBase* particleSystem = particles->particleSystem;
particleSystem->particleBase->releaseParticles();
//Add particle system actor to the collection and store the ID in our format
if(PhysXSerializerWrapper::AddToWorkingCollection(*particleSystem->particleBase))
{
PhysXSerializerWrapper::CreateIDs(ActorCollection, StartID);
long long systemID = PhysXSerializerWrapper::GetID(ActorCollection,
*particleSystem->particleBase);
if(systemID > PX_SERIAL_OBJECT_ID_INVALID)
writer.AddAttribute(ParticleActorID, systemID);
}
//Particle system attributes
writer.AddAttribute(MaxParticles, (long long)particleSystem->maximumParticles);
writer.AddAttribute(OnGPU, particleSystem->onGPU);
writer.AddAttribute(InitialLifetime, particleSystem->initialLifetime);
bool emitterSerialized = SerializeParticleEmitter(writer, particles);
bool affectorsSerialized = SerializeParticleAffectors(writer, particles);
writer.PopNode();
return emitterSerialized && affectorsSerialized;
}
return false;
}
bool SceneSerializer::SerializeParticleAffectors(XMLWriter& writer, const ParticleComponent* particles)
{
ParticleSystemBase* particleSystem = (ParticleSystemBase*)particles->particleSystem;
if(particleSystem->affectors.affectorMap.size() > 0)
writer.CreateNode(ParticleAffectors);
else
return true;//if none to process, return as if successful
for (auto affectIter = particleSystem->affectors.GetMapBegin();
affectIter != particleSystem->affectors.GetMapEnd(); ++affectIter)
{
ParticleAffectorType::ParticleAffectorType affectType =
affectIter->second->GetAffectorType();
switch (affectType)
{
case ParticleAffectorType::Scale:
{
if(writer.CreateNode(ScaleAffector))
{
GPUScaleAffectorParams* params =
(GPUScaleAffectorParams*)affectIter->second->GetGPUParamaters();
writer.AddAttribute(OnGPU, affectIter->second->GetOnGPU());
writer.AddAttribute(Enlarge,params->enlarge);
writer.AddAttribute(MinScale, params->minScale);
writer.AddAttribute(MaxScale, params->maxScale);
writer.PopNode();
}
}
break;
case ParticleAffectorType::AlphaFade:
break;
case ParticleAffectorType::ColourToColour:
{
if(writer.CreateNode(ColourFaderAffector))
{
GPUColourFaderAffectorParams* params =
(GPUColourFaderAffectorParams*)affectIter->second->GetGPUParamaters();
writer.AddAttribute(OnGPU, affectIter->second->GetOnGPU());
//Add start colour
writer.CreateNode(StartColour);
AddVector4Attribute(writer, params->startColour);
writer.PopNode();
//Add end colour
writer.CreateNode(EndColour);
AddVector4Attribute(writer, params->endColour);
writer.PopNode();
//pop off scale affector
writer.PopNode();
}
}
break;
}
}
writer.PopNode();
return true;
}