FCDocument/FCDPhysicsSceneNode.h

/*
    Copyright (C) 2005-2006 Feeling Software Inc.
    MIT License: http://www.opensource.org/licenses/mit-license.php
*/
/*
    Based on the FS Import classes:
    Copyright (C) 2005-2006 Feeling Software Inc
    Copyright (C) 2005-2006 Autodesk Media Entertainment
    MIT License: http://www.opensource.org/licenses/mit-license.php
*/

#ifndef _FCD_PHYSICS_SCENE_NODE_
#define _FCD_PHYSICS_SCENE_NODE_

#include "FCDocument/FCDEntity.h"

class FCDocument;
class FCDEntityInstance;
class FCDExtra;

class FCDPhysicsModelInstance;

typedef vector<FCDPhysicsModelInstance*> FCDPhysicsModelInstanceList;

class FCOLLADA_EXPORT FCDPhysicsSceneNode : public FCDEntity
{
private:
    DeclareObjectType;
    FCDExtra* extra;
    FMVector3 gravity;
    float timestep;
    FCDPhysicsModelInstanceList instances;

public:
    FCDPhysicsSceneNode(FCDocument* document);
    virtual ~FCDPhysicsSceneNode();

    // Returns the entity type
    virtual Type GetType() const { return PHYSICS_SCENE_NODE; }
    
    FCDPhysicsModelInstanceList& GetInstances() { return instances; }
    const FCDPhysicsModelInstanceList& GetInstances() const { return instances; }
    size_t GetNumInstances() const { return instances.size(); };

    // Visibility parameter
    const FMVector3& GetGravity() const { return gravity; }
    const float& GetTimestep() const { return timestep; }

    // Parse a <physics_scene> node from a COLLADA document
    virtual FUStatus LoadFromXML(xmlNode* sceneNode);

    // Write out a <physics_scene> element to a COLLADA xml document
    void WriteToNodeXML(xmlNode* node) const;
    virtual xmlNode* WriteToXML(xmlNode* parentNode) const;

    // Instantiating a scene node means ensuring that there is no cycles in the scene graph
    void Instantiate(FCDPhysicsSceneNode* sceneNode);
};

#endif // _FCD_SCENE_NODE_

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