84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/*
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* PVVMUD a 3D MUD
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* Copyright (C) 1998-1999 Programvareverkstedet (pvv@pvv.org)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef _SPLINE_H
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#define _SPLINE_H
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#include "keyframe.H"
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class CSpline: public CInterpolate {
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CMatrix * m_basis;
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public:
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CSpline(CMatrix * basis);
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virtual CVector interpolate(double time, ControlVector_t * controlVector);
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virtual CVector interpolate(double time, CMatrix & control);
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};
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////////////////////////////////////////////////////////////////////////////////
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// Catmull-Rom
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// For N segments we need 4+(N-1) control vectors [0..K]
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// Line pass through all control vector except first and last.
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// s control the tension of the curve.
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////////////////////////////////////////////////////////////////////////////////
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class CCatmullRom : public CSpline{
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public:
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CCatmullRom(double s = 1.0);
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virtual void addControlVector(CKeyFrame * keyFrame,
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const ControlVector_t & controlVector);
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};
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////////////////////////////////////////////////////////////////////////////////
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// Bezier
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// For N segments we need 4+3*(N-1) control vectors [0..K]
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// Line pass through every 4. control vector including first and last.
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// Every 2. and 3. points are used to control the curve form.
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////////////////////////////////////////////////////////////////////////////////
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class CBezier : public CSpline {
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static CMatrix m_bezier;
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public:
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CBezier();
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virtual void addControlVector(CKeyFrame * keyFrame,
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const ControlVector_t & controlVector);
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};
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////////////////////////////////////////////////////////////////////////////////
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// Hermite
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// For N segments we need 4+2*(N-1) control vectors [0..K]
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// Line pass through every odd control vector. Every even contorl vector
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// is a tangent for the curve.
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////////////////////////////////////////////////////////////////////////////////
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class CHermite : public CSpline {
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static CMatrix m_hermite;
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public:
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CHermite();
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virtual void addControlVector(CKeyFrame * keyFrame,
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const ControlVector_t & controlVector);
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};
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#endif // _SPLINE_H
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