tcbspline.h

Go to the documentation of this file.

/*
**  Command & Conquer Generals Zero Hour(tm)
**  Copyright 2025 Electronic Arts Inc.
**
**  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.
**
**  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, see <http://www.gnu.org/licenses/>.
*/
 
/***********************************************************************************************
 ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
 ***********************************************************************************************
 *                                                                                             *
 *                 Project Name : WWMath                                                       *
 *                                                                                             *
 *                     $Archive:: /VSS_Sync/wwmath/tcbspline.h                                $*
 *                                                                                             *
 *                       Author:: Greg Hjelstrom                                               *
 *                                                                                             *
 *                     $Modtime:: 6/13/01 2:18p                                               $*
 *                                                                                             *
 *                    $Revision:: 4                                                           $*
 *                                                                                             *
 *---------------------------------------------------------------------------------------------*
 * Functions:                                                                                  *
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
 
 
#if defined(_MSC_VER)
#pragma once
#endif
 
#ifndef TCBSPLINE_H
#define TCBSPLINE_H
 
#include "hermitespline.h"
 
/*
** TCBSpline3DClass
** Tension-Continuity-Bias splines.  Otherwise known as Kochanek-Bartels cubic splines
*/
class TCBSpline3DClass : public HermiteSpline3DClass
{
public:
 
    virtual int         Add_Key(const Vector3 & point,float t);
    virtual void        Remove_Key(int i);
    virtual void        Clear_Keys(void);
 
    virtual void        Set_TCB_Params(int i,float tension,float continuity,float bias);
    virtual void        Get_TCB_Params(int i,float *tension,float *continuity,float *bias);
 
    void                    Update_Tangents(void);
 
    // save-load support
    virtual const PersistFactoryClass &  Get_Factory(void) const;
    virtual bool                                Save(ChunkSaveClass &csave);
    virtual bool                                Load(ChunkLoadClass &cload);
 
protected:  
 
    class TCBClass
    {
    public:
        float               Tension;
        float               Continuity;
        float               Bias;
        bool                operator == (const TCBClass & that) { return ((Tension == that.Tension) && (Continuity == that.Continuity) && (Bias == that.Bias)); }
        bool                operator != (const TCBClass & that) { return !TCBClass::operator == (that); }
    };
 
    DynamicVectorClass<TCBClass> Params;
};
 
 
#endif