SceneNode.h

#ifndef _SCENENODE_H_
#define _SCENENODE_H_

#include "Transform.h"
#include "IdentityTransform.h"
#include "Transformable.h"
#include <list>

class Scene;

class SceneNode
{
public:
    friend class Scene;

    SceneNode(Scene* scene);
    ~SceneNode();
    
    void addSceneNode(SceneNode* sceneNode);
    void removeSceneNode(SceneNode* sceneNode);
    void removeFromParent();
    void removeAllSceneNodes();

    void addTransformable(Transformable* transformable);
    void removeTransformable(Transformable* transformable);
    void removeAllTransformables();

    void setTransform(Transform* transform);
    Transform* getTransform();
    const glm::mat4& getTotalTransform() const;
    float getTotalScale();
    
    SceneNode* getParent();

    const std::list<SceneNode*>& getChildNodes() const;
    const std::list<Transformable*>& getTransformables() const;

private:
    Scene* _scene;

    std::list<SceneNode*> _childNodes;
    SceneNode* _parentNode;

    std::list<Transformable*> _transformables;
    Transform* _transform;
    float _totalScale;
    glm::mat4 _totalTransform;

    void propagateTransform(const glm::mat4& inhTransform, float inhScale);

    static IdentityTransform _identity;
};



#endif _SCENENODE_H_