74 lines
2.2 KiB
C
74 lines
2.2 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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#include "pvvmud.H"
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#include "keyframe.H"
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CInterpolate::CInterpolate(){
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}
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void CInterpolate::addControlVector(CKeyFrame * keyFrame,
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const ControlVector_t & controlVector)
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{
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for (int index = 0; index < controlVector.size(); index++){
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keyFrame->addControlVector(controlVector[index]);
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}
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}
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CVector CInterpolate::interpolate(double time, ControlVector_t * controlVector){
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int size = (*controlVector).size();
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if (size == 0) return CVector(0.0,0.0,0.0);
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if (size == 1) return (*controlVector)[0];
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int start = (int)floor((size-1) * time);
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int stop = start + 1;
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time = (size-1)*time-start;
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return interpolate(start,time,controlVector);
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}
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CVector CInterpolate::interpolate(int start, double time,
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ControlVector_t * controlVector)
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{
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return (*controlVector)[start]
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+ ((*controlVector)[start+1]-(*controlVector)[start])*time;
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}
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CKeyFrame::CKeyFrame(CInterpolate * interpolate){
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m_controlVector = new ControlVector_t();
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m_interpolate = interpolate;
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}
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CKeyFrame::~CKeyFrame(){
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delete m_controlVector;
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delete m_interpolate;
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}
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void CKeyFrame::addControlVector(const CVector & vector){
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m_controlVector->push_back(vector);
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}
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void CKeyFrame::addControlVector(const ControlVector_t & controlVector){
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m_interpolate->addControlVector(this,controlVector);
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}
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CVector CKeyFrame::interpolate(double time){
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return m_interpolate->interpolate(time, m_controlVector);
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}
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