KX_SG_NodeRelationships.h

Go to the documentation of this file.

/*
 * ***** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 *****
 * 
 */
 
#ifndef __KX_SG_NODERELATIONS_H__
#define __KX_SG_NODERELATIONS_H__

#include "SG_Spatial.h"
#include "SG_ParentRelation.h"

class KX_NormalParentRelation : public SG_ParentRelation
{

public :
    static 
        KX_NormalParentRelation *
    New(
    );      

        bool
    UpdateChildCoordinates(
        SG_Spatial * child,
        const SG_Spatial * parent,
        bool& parentUpdated 
    );

        SG_ParentRelation *
    NewCopy(
    );

    ~KX_NormalParentRelation(
    );

private :

    KX_NormalParentRelation(
    );


#ifdef WITH_CXX_GUARDEDALLOC
public:
    void *operator new(size_t num_bytes) { return MEM_mallocN(num_bytes, "GE:KX_NormalParentRelation"); }
    void operator delete( void *mem ) { MEM_freeN(mem); }
#endif
};


class KX_VertexParentRelation : public SG_ParentRelation
{

public :

    static 
        KX_VertexParentRelation *
    New(
    );      

        bool
    UpdateChildCoordinates(
        SG_Spatial * child,
        const SG_Spatial * parent,
        bool& parentUpdated 
    );

        SG_ParentRelation *
    NewCopy(
    );

    ~KX_VertexParentRelation(
    );

        bool
    IsVertexRelation(
    ) { 
        return true;
    }

private :

    KX_VertexParentRelation(
    );


#ifdef WITH_CXX_GUARDEDALLOC
public:
    void *operator new(size_t num_bytes) { return MEM_mallocN(num_bytes, "GE:KX_VertexParentRelation"); }
    void operator delete( void *mem ) { MEM_freeN(mem); }
#endif
};


class KX_SlowParentRelation : public SG_ParentRelation
{

public :

    static 
        KX_SlowParentRelation *
    New(
        MT_Scalar relaxation
    );      

        bool
    UpdateChildCoordinates(
        SG_Spatial * child,
        const SG_Spatial * parent,
        bool& parentUpdated 
    );

        SG_ParentRelation *
    NewCopy(
    );

        MT_Scalar
    GetTimeOffset(
    ) { return m_relax; }
    
        void
    SetTimeOffset(
        MT_Scalar relaxation
    ) { m_relax = relaxation; }

    ~KX_SlowParentRelation(
    );
    
        bool
    IsSlowRelation(
    ) { 
        return true;
    }

private :

    KX_SlowParentRelation(
        MT_Scalar relaxation
    );

    // the relaxation coefficient.

    MT_Scalar m_relax;

    bool m_initialized;


#ifdef WITH_CXX_GUARDEDALLOC
public:
    void *operator new(size_t num_bytes) { return MEM_mallocN(num_bytes, "GE:KX_SlowParentRelation"); }
    void operator delete( void *mem ) { MEM_freeN(mem); }
#endif
};

#endif