AbstractGeom.h

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//-----------------------------------------------------------------------------------
//
// Pro-Vocation Light Engine (PVLE)
// Copyright (C) 2007-2009  Sukender, KinoX & Buzib
// For more information, contact us : sukender@free.fr
//
// 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 3 of the License, or
// (at your option) any later version.
//
// For any use that is not compatible with the terms of the GNU 
// General Public License, please contact the authors for alternative
// licensing options.
//
// 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.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//-----------------------------------------------------------------------------------

#ifndef PHY_ABSTRACT_GEOM_H
#define PHY_ABSTRACT_GEOM_H

// Temporary forced activation of wrapping functionnality for PVLE physics
#ifndef ENABLE_PHYSICS_BASIC_WRAPPING
    //#define ENABLE_PHYSICS_BASIC_WRAPPING
#endif
#ifndef ENABLE_PHYSICS_EXTRA_WRAPPING
    //#define ENABLE_PHYSICS_EXTRA_WRAPPING
#endif

#include <PVLE/Config.h>
#include <PVLE/Export.h>
#include <PVLE/Util/Util.h>
#include <boost/operators.hpp>
#include <ode/ode.h>
#include <PVLE/Physics/Converters.h>

#include <osg/Referenced>
#include <osg/ref_ptr>
#include <osg/BoundingBox>

#include <map>

class IGeomCollisionContainer;

namespace Physics {

// Forward declarations
class World;
class Body;
class Space;
class Geom;
class Visitor;

typedef std::map<const Body *, Body *> TDuplicatedBodiesMap;
typedef std::pair<const Body *, Body *> TDuplicatedBody;


class PVLE_EXPORT AbstractGeom : public osg::Referenced, public boost::totally_ordered<AbstractGeom> {
public:
    AbstractGeom() : id(0) {}

    enum ECopyOpts {
        COPY_BODIES    = 0x1,           
        COPY_CHILDREN  = 0x2,           
        COPY_ALL       = 0xffffffff
    };

    static AbstractGeom * clone(const AbstractGeom & v, UINT opts = COPY_ALL, IGeomCollisionContainer * pGeomsContainer = NULL, TDuplicatedBodiesMap * pDuplicatedBodies = NULL);

#ifdef ENABLE_PHYSICS_EXTRA_WRAPPING
    // Dev note: Function enable / disable are separated (not "setEnable(bool)") because they'll probably be called often.
    void enable() { dGeomEnable(id); }
    void disable() { dGeomDisable(id); }
    bool isEnabled() const { return dGeomIsEnabled(id) != 0; }
#endif

    osg::BoundingBox getAABB() const { dReal bb[6]; dGeomGetAABB(id, bb); return toGraphBB(bb); }

    bool isSpace() const { return dGeomIsSpace(id)!=0; }    
    virtual Space * asSpace() { return NULL; }
    virtual Geom * asGeom() { return NULL; }
    virtual const Space * asSpace() const { return NULL; }
    virtual const Geom * asGeom() const { return NULL; }

    virtual void accept(Visitor & v);
    virtual void traverse(Visitor & v) {}       


    Space * getParentSpace() {
        dSpaceID spaceId = dGeomGetSpace(id);
        return spaceId ? static_cast<Space *>(dGeomGetData(reinterpret_cast<dGeomID>(spaceId))) : NULL;     // reinterpret_cast<>() is needed because PVLE doesn't "know" that dSpaceID is convertible to dGeomID (This is ODE internal).
    }

    const Space * getParentSpace() const {
        dSpaceID spaceId = dGeomGetSpace(id);
        return spaceId ? (Space *)dGeomGetData((dGeomID)spaceId) : NULL;
    }

    bool operator<(const AbstractGeom & g) const { return id < g.id; }
    bool operator==(const AbstractGeom & g) const { return id == g.id; }

protected:
    friend class Geom;
    friend class Space;
    friend class World;     // For collisions
#ifdef PVLE_PHYSICS_KEEP_DEPRECATED_TRANSFORMS
    friend class Transform;
#endif

    mutable dGeomID id;         
    dSpaceID asSpaceId() { ASSERT(isSpace()); return (dSpaceID)id; }

    virtual ~AbstractGeom() {
        if (id) {
            //Space * pParentSpace = getParentSpace();
            //if (pParentSpace) pParentSpace->remove(this);
            dSpaceID parentSpaceID = dGeomGetSpace(id);
            if (parentSpaceID) dSpaceRemove(parentSpaceID, id);
            dGeomDestroy(id);
        }
    }
};


}   // namespace Physics

#endif  // PHY_ABSTRACT_GEOM_H

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