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halflife-sdk-steam/cl_dll/interpolation.h

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/************ (C) Copyright 2003 Valve, L.L.C. All rights reserved. ***********
**
** The copyright to the contents herein is the property of Valve, L.L.C.
** The contents may be used and/or copied only with the written permission of
** Valve, L.L.C., or in accordance with the terms and conditions stipulated in
** the agreement/contract under which the contents have been supplied.
**
*******************************************************************************
**
** Contents:
**
** interpolation.h: Bezier inpolation classes
**
******************************************************************************/
#ifndef INTERPOLATION_H
#define INTERPOLATION_H
#ifdef _WIN32
#pragma once
#endif
// interpolation class
class CInterpolation
{
public:
CInterpolation();
virtual ~CInterpolation();
void SetWaypoints(vec3_t * prev, vec3_t start, vec3_t end, vec3_t * next);
void SetViewAngles( vec3_t start, vec3_t end );
void SetFOVs(float start, float end);
void SetSmoothing(bool start, bool end);
// get interpolated point 0 =< t =< 1, 0 = start, 1 = end
void Interpolate(float t, vec3_t &point, vec3_t &angle, float * fov);
protected:
void BezierInterpolatePoint( float t, vec3_t &point );
void InterpolateAngle( float t, vec3_t &angle );
vec3_t m_StartPoint;
vec3_t m_EndPoint;
vec3_t m_StartAngle;
vec3_t m_EndAngle;
vec3_t m_Center;
float m_StartFov;
float m_EndFov;
bool m_SmoothStart;
bool m_SmoothEnd;
};
#endif // INTERPOLATION_H