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#pragma once
#include "Transformable.h"
#include "itransformnode.h"
#include "math/Matrix4.h"
/// \brief A transform node which has no effect.
class IdentityTransform :
public ITransformNode
{
public:
/// \brief Returns the identity matrix.
Matrix4 localToParent() const
{
return Matrix4::getIdentity();
}
};
namespace scene
{
/**
* @brief Visit each Transformable child node
*
* @tparam Func
* Functor object accepting a single parameter consisting of an ITransformable&.
*
* @param node
* Node to start traversal from.
*
* @param functor
* Functor to invoke.
*/
template<typename Func>
void forEachTransformable(const INode& node, Func functor)
{
node.foreachNode(
[&](const scene::INodePtr& child) -> bool
{
ITransformablePtr transformable = scene::node_cast<ITransformable>(child);
if (transformable)
functor(*transformable);
return true;
}
);
}
}
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