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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.0 (2010/01/01)
#include "Wm5GraphicsPCH.h"
#include "Wm5Spatial.h"
#include "Wm5Culler.h"
using namespace Wm5;
WM5_IMPLEMENT_RTTI(Wm5, ControlledObject, Spatial);
WM5_IMPLEMENT_STREAM(Spatial);
WM5_IMPLEMENT_ABSTRACT_FACTORY(Spatial);
//----------------------------------------------------------------------------
Spatial::Spatial ()
:
WorldTransformIsCurrent(false),
WorldBoundIsCurrent(false),
Culling(CULL_DYNAMIC),
mParent(0)
{
}
//----------------------------------------------------------------------------
Spatial::~Spatial ()
{
// The mParent member is not reference counted by Spatial, so do not
// release it here.
}
//----------------------------------------------------------------------------
void Spatial::Update (double applicationTime, bool initiator)
{
UpdateWorldData(applicationTime);
UpdateWorldBound();
if (initiator)
{
PropagateBoundToRoot();
}
}
//----------------------------------------------------------------------------
void Spatial::UpdateWorldData (double applicationTime)
{
// Update any controllers associated with this object.
UpdateControllers(applicationTime);
// Update world transforms.
if (!WorldTransformIsCurrent)
{
if (mParent)
{
WorldTransform = mParent->WorldTransform*LocalTransform;
}
else
{
WorldTransform = LocalTransform;
}
}
}
//----------------------------------------------------------------------------
void Spatial::PropagateBoundToRoot ()
{
if (mParent)
{
mParent->UpdateWorldBound();
mParent->PropagateBoundToRoot();
}
}
//----------------------------------------------------------------------------
void Spatial::OnGetVisibleSet (Culler& culler, bool noCull)
{
if (Culling == CULL_ALWAYS)
{
return;
}
if (Culling == CULL_NEVER)
{
noCull = true;
}
unsigned int savePlaneState = culler.GetPlaneState();
if (noCull || culler.IsVisible(WorldBound))
{
GetVisibleSet(culler, noCull);
}
culler.SetPlaneState(savePlaneState);
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Name support.
//----------------------------------------------------------------------------
Object* Spatial::GetObjectByName (const std::string& name)
{
// mParent is not searched to avoid a cycle in the Object graph.
return ControlledObject::GetObjectByName(name);
}
//----------------------------------------------------------------------------
void Spatial::GetAllObjectsByName (const std::string& name,
std::vector<Object*>& objects)
{
// mParent is not searched to avoid a cycle in the Object graph.
ControlledObject::GetAllObjectsByName(name, objects);
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Streaming support.
//----------------------------------------------------------------------------
Spatial::Spatial (LoadConstructor value)
:
ControlledObject(value),
WorldTransformIsCurrent(false),
WorldBoundIsCurrent(false),
Culling(CULL_DYNAMIC),
mParent(0)
{
}
//----------------------------------------------------------------------------
void Spatial::Load (InStream& source)
{
WM5_BEGIN_DEBUG_STREAM_LOAD(source);
ControlledObject::Load(source);
source.ReadAggregate(LocalTransform);
source.ReadAggregate(WorldTransform);
source.ReadBool(WorldTransformIsCurrent);
source.ReadAggregate(WorldBound);
source.ReadBool(WorldBoundIsCurrent);
source.ReadEnum(Culling);
// mParent was not saved. It will be set in Node::Link when the child
// pointers of the Node are resolved by Node::SetChild.
WM5_END_DEBUG_STREAM_LOAD(Spatial, source);
}
//----------------------------------------------------------------------------
void Spatial::Link (InStream& source)
{
// mParent was not saved. It will be set in Node::Link when the child
// pointers of the Node are resolved by Node::SetChild.
ControlledObject::Link(source);
}
//----------------------------------------------------------------------------
void Spatial::PostLink ()
{
ControlledObject::PostLink();
}
//----------------------------------------------------------------------------
bool Spatial::Register (OutStream& target) const
{
// mParent need not be registered since the parent itself must have
// initiated the Register call to its children, 'this' being one of them.
return ControlledObject::Register(target);
}
//----------------------------------------------------------------------------
void Spatial::Save (OutStream& target) const
{
WM5_BEGIN_DEBUG_STREAM_SAVE(target);
ControlledObject::Save(target);
target.WriteAggregate(LocalTransform);
target.WriteAggregate(WorldTransform);
target.WriteBool(WorldTransformIsCurrent);
target.WriteAggregate(WorldBound);
target.WriteBool(WorldBoundIsCurrent);
target.WriteEnum(Culling);
// mParent is not saved. On load, it will be set in Node::Link when the
// child pointers of the Node are resolved by Node::SetChild.
WM5_END_DEBUG_STREAM_SAVE(Spatial, target);
}
//----------------------------------------------------------------------------
int Spatial::GetStreamingSize () const
{
int size = ControlledObject::GetStreamingSize();
size += LocalTransform.GetStreamingSize();;
size += WorldTransform.GetStreamingSize();
size += WM5_BOOLSIZE(WorldTransformIsCurrent);
size += WorldBound.GetStreamingSize();
size += WM5_BOOLSIZE(WorldBoundIsCurrent);
size += WM5_ENUMSIZE(Culling);
// mParent is not streamed.
return size;
}
//----------------------------------------------------------------------------
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