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/**
* $Id$
*
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
#ifndef __SG_SPATIAL_H
#define __SG_SPATIAL_H
#include <MT_Vector3.h>
#include <MT_Point3.h>
#include <MT_Matrix3x3.h> // or Quaternion later ?
#include "SG_IObject.h"
class SG_Node;
class SG_ParentRelation;
class SG_Spatial : public SG_IObject
{
protected:
MT_Point3 m_localPosition;
MT_Matrix3x3 m_localRotation;
MT_Vector3 m_localScaling;
MT_Point3 m_worldPosition;
MT_Matrix3x3 m_worldRotation;
MT_Vector3 m_worldScaling;
SG_ParentRelation * m_parent_relation;
public:
/**
* Define the realtionship this node has with it's parent
* node. You should pass an unshared instance of an SG_ParentRelation
* allocated on the heap to this method. Ownership of this
* instance is assumed by this class.
* You may call this function several times in the lifetime
* of a node to change the relationship dynamically.
* You must call this method before the first call to UpdateSpatialData().
* An assertion willl be fired at run-time in debug if this is not
* the case.
* The relation is activated only if no controllers of this object
* updated the coordinates of the child.
*/
void
SetParentRelation(
SG_ParentRelation *relation
);
/**
* Apply a translation relative to the current position.
* if local then the translation is assumed to be in the
* local coordinates of this object. If not then the translation
* is assumed to be in global coordinates. In this case
* you must provide a pointer to the parent of this object if it
* exists otherwise if there is no parent set it to NULL
*/
void
RelativeTranslate(
const MT_Vector3& trans,
const SG_Spatial *parent,
bool local
);
void
SetLocalPosition(
const MT_Point3& trans
);
void
SetWorldPosition(
const MT_Point3& trans
);
void
RelativeRotate(
const MT_Matrix3x3& rot,
bool local
);
void
SetLocalOrientation(
const MT_Matrix3x3& rot
);
void
SetWorldOrientation(
const MT_Matrix3x3& rot
);
void
RelativeScale(
const MT_Vector3& scale
);
void
SetLocalScale(
const MT_Vector3& scale
);
void
SetWorldScale(
const MT_Vector3& scale
);
const
MT_Point3&
GetLocalPosition(
) const ;
const
MT_Matrix3x3&
GetLocalOrientation(
) const ;
const
MT_Vector3&
GetLocalScale(
) const;
const
MT_Point3&
GetWorldPosition(
) const ;
const
MT_Matrix3x3&
GetWorldOrientation(
) const ;
const
MT_Vector3&
GetWorldScaling(
) const ;
void ComputeWorldTransforms( const SG_Spatial *parent);
protected:
friend SG_Controller;
/**
* Protected constructor this class is not
* designed for direct instantiation
*/
SG_Spatial(
void* clientobj,
void* clientinfo,
SG_Callbacks callbacks
);
SG_Spatial(
const SG_Spatial& other
);
virtual ~SG_Spatial();
/**
* Update the world coordinates of this spatial node. This also informs
* any controllers to update this object.
*/
void
UpdateSpatialData(
const SG_Spatial *parent,
double time
);
};
#endif //__SG_SPATIAL_H
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