114 lines
2.4 KiB
C++
114 lines
2.4 KiB
C++
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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//=============================================================================//
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#ifndef RANGECHECKEDVAR_H
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#define RANGECHECKEDVAR_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "tier0/dbg.h"
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#include "tier0/threadtools.h"
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#include "mathlib/vector.h"
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#include <float.h>
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// Use this to disable range checks within a scope.
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class CDisableRangeChecks
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{
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public:
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CDisableRangeChecks();
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~CDisableRangeChecks();
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};
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template< class T >
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inline void RangeCheck( const T &value, int minValue, int maxValue )
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{
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#ifdef _DEBUG
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extern bool g_bDoRangeChecks;
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if ( ThreadInMainThread() && g_bDoRangeChecks )
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{
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// Ignore the min/max stuff for now.. just make sure it's not a NAN.
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Assert( IsFinite( value ) );
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}
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#endif
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}
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inline void RangeCheck( const Vector &value, int minValue, int maxValue )
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{
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#ifdef _DEBUG
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RangeCheck( value.x, minValue, maxValue );
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RangeCheck( value.y, minValue, maxValue );
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RangeCheck( value.z, minValue, maxValue );
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#endif
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}
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template< class T, int minValue, int maxValue, int startValue >
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class CRangeCheckedVar
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{
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public:
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inline CRangeCheckedVar()
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{
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m_Val = startValue;
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}
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inline CRangeCheckedVar( const T &value )
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{
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*this = value;
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}
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// Clamp the value to its limits. Interpolation code uses this after interpolating.
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inline void Clamp()
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{
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if ( m_Val < minValue )
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m_Val = minValue;
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else if ( m_Val > maxValue )
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m_Val = maxValue;
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}
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inline operator const T&() const
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{
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return m_Val;
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}
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inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator=( const T &value )
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{
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RangeCheck( value, minValue, maxValue );
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m_Val = value;
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return *this;
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}
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inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator+=( const T &value )
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{
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return (*this = m_Val + value);
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}
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inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator-=( const T &value )
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{
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return (*this = m_Val - value);
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}
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inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator*=( const T &value )
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{
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return (*this = m_Val * value);
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}
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inline CRangeCheckedVar<T, minValue, maxValue, startValue>& operator/=( const T &value )
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{
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return (*this = m_Val / value);
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}
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private:
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T m_Val;
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};
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#endif // RANGECHECKEDVAR_H
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