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/**
* $Id: SG_Spatial.cpp 20094 2009-05-07 09:13:01Z ben2610 $
*
* ***** BEGIN GPL 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.
*
* 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 LICENSE BLOCK *****
*/
#include "SG_Node.h"
#include "SG_Spatial.h"
#include "SG_Controller.h"
#include "SG_ParentRelation.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
SG_Spatial::
SG_Spatial(
void* clientobj,
void* clientinfo,
SG_Callbacks& callbacks
):
SG_IObject(clientobj,clientinfo,callbacks),
m_localPosition(0.0,0.0,0.0),
m_localRotation(1.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,1.0),
m_localScaling(1.f,1.f,1.f),
m_worldPosition(0.0,0.0,0.0),
m_worldRotation(1.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,1.0),
m_worldScaling(1.f,1.f,1.f),
m_parent_relation (NULL),
m_bbox(MT_Point3(-1.0, -1.0, -1.0), MT_Point3(1.0, 1.0, 1.0)),
m_radius(1.0),
m_modified(false),
m_ogldirty(false)
{
}
SG_Spatial::
SG_Spatial(
const SG_Spatial& other
) :
SG_IObject(other),
m_localPosition(other.m_localPosition),
m_localRotation(other.m_localRotation),
m_localScaling(other.m_localScaling),
m_worldPosition(other.m_worldPosition),
m_worldRotation(other.m_worldRotation),
m_worldScaling(other.m_worldScaling),
m_parent_relation(NULL),
m_bbox(other.m_bbox),
m_radius(other.m_radius),
m_modified(false),
m_ogldirty(false)
{
// duplicate the parent relation for this object
m_parent_relation = other.m_parent_relation->NewCopy();
}
SG_Spatial::
~SG_Spatial()
{
delete (m_parent_relation);
}
void
SG_Spatial::
SetParentRelation(
SG_ParentRelation *relation
){
delete (m_parent_relation);
m_parent_relation = relation;
SetModified();
}
/**
* Update Spatial Data.
* Calculates WorldTransform., (either doing itsself or using the linked SGControllers)
*/
bool
SG_Spatial::
UpdateSpatialData(
const SG_Spatial *parent,
double time,
bool& parentUpdated
){
bool bComputesWorldTransform = false;
// update spatial controllers
SGControllerList::iterator cit = GetSGControllerList().begin();
SGControllerList::const_iterator c_end = GetSGControllerList().end();
for (;cit!=c_end;++cit)
{
if ((*cit)->Update(time))
bComputesWorldTransform = true;
}
// If none of the objects updated our values then we ask the
// parent_relation object owned by this class to update
// our world coordinates.
if (!bComputesWorldTransform)
bComputesWorldTransform = ComputeWorldTransforms(parent, parentUpdated);
return bComputesWorldTransform;
}
/**
* Position and translation methods
*/
void
SG_Spatial::
RelativeTranslate(
const MT_Vector3& trans,
const SG_Spatial *parent,
bool local
){
if (local) {
m_localPosition += m_localRotation * trans;
} else {
if (parent) {
m_localPosition += trans * parent->GetWorldOrientation();
} else {
m_localPosition += trans;
}
}
SetModified();
}
/**
* Scaling methods.
*/
/**
* Orientation and rotation methods.
*/
void
SG_Spatial::
RelativeRotate(
const MT_Matrix3x3& rot,
bool local
){
m_localRotation = m_localRotation * (
local ?
rot
:
(GetWorldOrientation().inverse() * rot * GetWorldOrientation()));
SetModified();
}
MT_Transform SG_Spatial::GetWorldTransform() const
{
return MT_Transform(m_worldPosition,
m_worldRotation.scaled(
m_worldScaling[0], m_worldScaling[1], m_worldScaling[2]));
}
bool SG_Spatial::inside(const MT_Point3 &point) const
{
MT_Scalar radius = m_worldScaling[m_worldScaling.closestAxis()]*m_radius;
return (m_worldPosition.distance2(point) <= radius*radius) ?
m_bbox.transform(GetWorldTransform()).inside(point) :
false;
}
void SG_Spatial::getBBox(MT_Point3 *box) const
{
m_bbox.get(box, GetWorldTransform());
}
void SG_Spatial::getAABBox(MT_Point3 *box) const
{
m_bbox.getaa(box, GetWorldTransform());
}
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