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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================//
#ifndef RANGECHECKEDVAR_H
#define RANGECHECKEDVAR_H
#ifdef _WIN32
#pragma once
#endif
#include "tier0/dbg.h"
#include "tier0/threadtools.h"
#include "mathlib/vector.h"
#include <float.h>
// Use this to disable range checks within a scope.
class CDisableRangeChecks { public: CDisableRangeChecks(); ~CDisableRangeChecks(); };
template< class T > inline void RangeCheck( const T &value, int minValue, int maxValue ) { #ifdef _DEBUG
extern bool g_bDoRangeChecks; if ( ThreadInMainThread() && g_bDoRangeChecks ) { // Ignore the min/max stuff for now.. just make sure it's not a NAN.
Assert( _finite( value ) ); } #endif
}
inline void RangeCheck( const Vector &value, int minValue, int maxValue ) { #ifdef _DEBUG
RangeCheck( value.x, minValue, maxValue ); RangeCheck( value.y, minValue, maxValue ); RangeCheck( value.z, minValue, maxValue ); #endif
}
template< class T, int minValue, int maxValue, int startValue > class CRangeCheckedVar { public:
inline CRangeCheckedVar() { m_Val = startValue; }
inline CRangeCheckedVar( const T &value ) { *this = value; }
T GetRaw() const { return m_Val; }
// Clamp the value to its limits. Interpolation code uses this after interpolating.
inline void Clamp() { if ( m_Val < minValue ) m_Val = minValue; else if ( m_Val > maxValue ) m_Val = maxValue; }
inline operator const T&() const { return m_Val; }
inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator=( const T &value ) { RangeCheck( value, minValue, maxValue ); m_Val = value; return *this; }
inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator+=( const T &value ) { return (*this = m_Val + value); }
inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator-=( const T &value ) { return (*this = m_Val - value); }
inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator*=( const T &value ) { return (*this = m_Val * value); }
inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator/=( const T &value ) { return (*this = m_Val / value); }
private:
T m_Val; };
#endif // RANGECHECKEDVAR_H
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