Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================
#ifndef FX_INTERPVALUE_H
#define FX_INTERPVALUE_H
#ifdef _WIN32
#pragma once
#endif
// Types of supported interpolation
enum InterpType_t
{
INTERP_LINEAR = 0,
INTERP_SPLINE,
};
class CInterpolatedValue
{
public:
CInterpolatedValue( void );
CInterpolatedValue( float startTime, float endTime, float startValue, float endValue, InterpType_t type );
void SetTime( float start, float end );
void SetRange( float start, float end );
void SetType( InterpType_t type );
// Set the value with no range
void SetAbsolute( float value );
// Set the value with range and time supplied
void Init( float startValue, float endValue, float dt, InterpType_t type = INTERP_LINEAR );
// Start from the current value and move towards the end value
void InitFromCurrent( float endValue, float dt, InterpType_t type = INTERP_LINEAR );
// Find our interpolated value at the given point in time
float Interp( float curTime );
private:
float m_flStartTime;
float m_flEndTime;
float m_flStartValue;
float m_flEndValue;
int m_nInterpType;
};
#endif // FX_INTERPVALUE_H