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// K-3D
// Copyright (c) 1995-2004, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// 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
/** \file
\brief Defines a geometric collision-detection region within an ODE world
\author Timothy M. Shead (tshead@k-3d.com)
\author Brett W. McCoy
*/
#include "icollidable.h"
#include <k3dsdk/classes.h>
#include <k3dsdk/persistence.h>
#include <k3dsdk/module.h>
#include <k3dsdk/property.h>
#include <sdpgl/sdpgl.h>
#include <boost/bind.hpp>
#include <vector>
namespace
{
/////////////////////////////////////////////////////////////////////////////
// geometry
class geometry
{
public:
virtual ~geometry()
{
if(m_geom) dGeomDestroy(m_geom);
}
dGeomID geom()
{
return m_geom;
}
geometry(const dGeomID Geom) :
m_geom(Geom)
{
}
void destroy()
{
if(m_geom) dGeomDestroy(m_geom);
m_geom = 0;
}
virtual void update() = 0;
protected:
dGeomID m_geom;
private:
geometry(const geometry&) {}
geometry& operator=(const geometry&) { return *this; }
};
typedef std::vector<geometry*> geometry_t;
/////////////////////////////////////////////////////////////////////////////
// sphere
class sphere :
public geometry
{
public:
sphere(k3d::iobject& Object) :
geometry(dCreateSphere(0, 0)),
m_object(Object)
{
}
void update()
{
const boost::any radius = k3d::get_property_value(m_object, "radius");
return_if_fail(radius.type() == typeid(double));
dGeomSphereSetRadius(geom(), boost::any_cast<double>(radius));
}
private:
k3d::iobject& m_object;
};
/////////////////////////////////////////////////////////////////////////////
// create_geometry
class create_geometry
{
public:
create_geometry(geometry_t& Geometry) :
m_geometry(Geometry)
{
}
void operator()(k3d::iobject& Object)
{
if(k3d::classes::Sphere() == Object.factory().class_id())
m_geometry.push_back(new sphere(Object));
}
private:
geometry_t& m_geometry;
};
/////////////////////////////////////////////////////////////////////////////
// collidable_implementation
class collidable_implementation :
public k3d::persistent<k3d::object> ,
public libk3dode::icollidable
{
typedef k3d::persistent<k3d::object> base;
public:
collidable_implementation(k3d::idocument& Document) :
base(Document)
{
Document.hierarchy().changed_signal().connect(SigC::slot(*this, &collidable_implementation::on_hierarchy_changed));
}
~collidable_implementation()
{
destroy_geometry();
}
void create_geometry()
{
k3d::for_each_descendant(document().hierarchy(), this, ::create_geometry(m_geometry));
}
void update_geometry()
{
std::for_each(m_geometry.begin(), m_geometry.end(), boost::mem_fn(&geometry::update));
}
void destroy_geometry()
{
std::for_each(m_geometry.begin(), m_geometry.end(), k3d::delete_object());
m_geometry.clear();
}
void on_hierarchy_changed()
{
destroy_geometry();
create_geometry();
}
const geoms_t geoms()
{
update_geometry();
geoms_t results;
for(geometry_t::iterator geometry = m_geometry.begin(); geometry != m_geometry.end(); ++geometry)
results.push_back((*geometry)->geom());
return results;
}
k3d::iplugin_factory& factory()
{
return get_factory();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::plugin_factory<k3d::document_plugin<collidable_implementation> > factory(
k3d::uuid(0xc2f25a51, 0xac124157, 0xb425bfbe, 0xe0bd5ab9),
"ODECollidable",
"Experimental ODE dynamics library plugin",
"Objects",
k3d::iplugin_factory::EXPERIMENTAL);
return factory;
}
private:
geometry_t m_geometry;
};
} // namespace
namespace libk3dode
{
/////////////////////////////////////////////////////////////////////////////
// body_factory
k3d::iplugin_factory& collidable_factory()
{
return ::collidable_implementation::get_factory();
}
} // namespace libk3dode
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