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diff --git a/public/tier0/basetypes.h b/public/tier0/basetypes.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef BASETYPES_H
+#define BASETYPES_H
+
+#include "commonmacros.h"
+#include "wchartypes.h"
+
+#include "tier0/valve_off.h"
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+// This is a trick to get the DLL extension off the -D option on the command line.
+#define DLLExtTokenPaste(x) #x
+#define DLLExtTokenPaste2(x) DLLExtTokenPaste(x)
+#define DLL_EXT_STRING DLLExtTokenPaste2( _DLL_EXT )
+
+
+#include "protected_things.h"
+
+// There's a different version of this file in the xbox codeline
+// so the PC version built in the xbox branch includes things like 
+// tickrate changes.
+#include "xbox_codeline_defines.h"
+
+#ifdef IN_XBOX_CODELINE
+#define XBOX_CODELINE_ONLY()
+#else
+#define XBOX_CODELINE_ONLY() Error_Compiling_Code_Only_Valid_in_Xbox_Codeline
+#endif
+
+// stdio.h
+#ifndef NULL
+#define NULL 0
+#endif
+
+
+#ifdef POSIX
+#include <stdint.h>
+#endif
+
+#define ExecuteNTimes( nTimes, x )	\
+	{								\
+		static int __executeCount=0;\
+		if ( __executeCount < nTimes )\
+		{							\
+			x;						\
+			++__executeCount;		\
+		}							\
+	}
+
+
+#define ExecuteOnce( x )			ExecuteNTimes( 1, x )
+
+
+template <typename T>
+inline T AlignValue( T val, uintptr_t alignment )
+{
+	return (T)( ( (uintptr_t)val + alignment - 1 ) & ~( alignment - 1 ) );
+}
+
+
+// Pad a number so it lies on an N byte boundary.
+// So PAD_NUMBER(0,4) is 0 and PAD_NUMBER(1,4) is 4
+#define PAD_NUMBER(number, boundary) \
+	( ((number) + ((boundary)-1)) / (boundary) ) * (boundary)
+
+// In case this ever changes
+#if !defined(M_PI) && !defined(HAVE_M_PI)
+#define M_PI			3.14159265358979323846
+#endif
+
+#include "valve_minmax_on.h"
+
+// #define COMPILETIME_MAX and COMPILETIME_MIN for max/min in constant expressions
+#define COMPILETIME_MIN( a, b ) ( ( ( a ) < ( b ) ) ? ( a ) : ( b ) )
+#define COMPILETIME_MAX( a, b ) ( ( ( a ) > ( b ) ) ? ( a ) : ( b ) )
+#ifndef MIN
+#define MIN( a, b ) ( ( ( a ) < ( b ) ) ? ( a ) : ( b ) )
+#endif
+
+#ifndef MAX
+#define MAX( a, b ) ( ( ( a ) > ( b ) ) ? ( a ) : ( b ) )
+#endif
+
+#ifdef __cplusplus
+
+// This is the preferred clamp operator. Using the clamp macro can lead to
+// unexpected side-effects or more expensive code. Even the clamp (all
+// lower-case) function can generate more expensive code because of the
+// mixed types involved.
+template< class T >
+T Clamp( T const &val, T const &minVal, T const &maxVal )
+{
+	if( val < minVal )
+		return minVal;
+	else if( val > maxVal )
+		return maxVal;
+	else
+		return val;
+}
+
+// This is the preferred Min operator. Using the MIN macro can lead to unexpected
+// side-effects or more expensive code.
+template< class T >
+T Min( T const &val1, T const &val2 )
+{
+	return val1 < val2 ? val1 : val2;
+}
+
+// This is the preferred Max operator. Using the MAX macro can lead to unexpected
+// side-effects or more expensive code.
+template< class T >
+T Max( T const &val1, T const &val2 )
+{
+	return val1 > val2 ? val1 : val2;
+}
+
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#define TRUE (!FALSE)
+#endif
+
+
+#ifndef DONT_DEFINE_BOOL // Needed for Cocoa stuff to compile.
+typedef int BOOL;
+#endif
+
+typedef int qboolean;
+typedef unsigned long ULONG;
+typedef unsigned char BYTE;
+typedef unsigned char byte;
+typedef unsigned short word;
+#ifdef _WIN32
+typedef wchar_t ucs2; // under windows wchar_t is ucs2
+#else
+typedef unsigned short ucs2;
+#endif
+
+enum ThreeState_t
+{
+	TRS_FALSE,
+	TRS_TRUE,
+	TRS_NONE,
+};
+
+typedef float vec_t;
+
+#if defined(__GNUC__)
+#define fpmin __builtin_fminf
+#define fpmax __builtin_fmaxf
+#elif !defined(_X360)
+#define fpmin min
+#define fpmax max
+#endif
+
+
+//-----------------------------------------------------------------------------
+// look for NANs, infinities, and underflows. 
+// This assumes the ANSI/IEEE 754-1985 standard
+//-----------------------------------------------------------------------------
+
+inline unsigned long& FloatBits( vec_t& f )
+{
+	return *reinterpret_cast<unsigned long*>(&f);
+}
+
+inline unsigned long const& FloatBits( vec_t const& f )
+{
+	return *reinterpret_cast<unsigned long const*>(&f);
+}
+
+inline vec_t BitsToFloat( unsigned long i )
+{
+	return *reinterpret_cast<vec_t*>(&i);
+}
+
+inline bool IsFinite( vec_t f )
+{
+	return ((FloatBits(f) & 0x7F800000) != 0x7F800000);
+}
+
+inline unsigned long FloatAbsBits( vec_t f )
+{
+	return FloatBits(f) & 0x7FFFFFFF;
+}
+
+// Given today's processors, I cannot think of any circumstance
+// where bit tricks would be faster than fabs. henryg 8/16/2011
+#ifdef _MSC_VER
+#ifndef _In_
+#define _In_
+#endif
+extern "C" float fabsf(_In_ float);
+#else
+#include <math.h>
+#endif
+
+inline float FloatMakeNegative( vec_t f )
+{
+	return -fabsf(f);
+}
+
+inline float FloatMakePositive( vec_t f )
+{
+	return fabsf(f);
+}
+
+inline float FloatNegate( vec_t f )
+{
+	return -f;
+}
+
+
+#define FLOAT32_NAN_BITS     (unsigned long)0x7FC00000	// not a number!
+#define FLOAT32_NAN          BitsToFloat( FLOAT32_NAN_BITS )
+
+#define VEC_T_NAN FLOAT32_NAN
+
+
+
+// FIXME: why are these here?  Hardly anyone actually needs them.
+struct color24
+{
+	byte r, g, b;
+};
+
+typedef struct color32_s
+{
+	bool operator!=( const struct color32_s &other ) const;
+
+	byte r, g, b, a;
+} color32;
+
+inline bool color32::operator!=( const color32 &other ) const
+{
+	return r != other.r || g != other.g || b != other.b || a != other.a;
+}
+
+struct colorVec
+{
+	unsigned r, g, b, a;
+};
+
+
+#ifndef NOTE_UNUSED
+#define NOTE_UNUSED(x)	(void)(x)	// for pesky compiler / lint warnings
+#endif
+
+struct vrect_t
+{
+	int				x,y,width,height;
+	vrect_t			*pnext;
+};
+
+
+//-----------------------------------------------------------------------------
+// MaterialRect_t struct - used for DrawDebugText
+//-----------------------------------------------------------------------------
+struct Rect_t
+{
+    int x, y;
+	int width, height;
+};
+
+
+//-----------------------------------------------------------------------------
+// Interval, used by soundemittersystem + the game
+//-----------------------------------------------------------------------------
+struct interval_t
+{
+	float start;
+	float range;
+};
+
+
+//-----------------------------------------------------------------------------
+// Declares a type-safe handle type; you can't assign one handle to the next
+//-----------------------------------------------------------------------------
+
+// 32-bit pointer handles.
+
+// Typesafe 8-bit and 16-bit handles.
+template< class HandleType >
+class CBaseIntHandle
+{
+public:
+	
+	inline bool			operator==( const CBaseIntHandle &other )	{ return m_Handle == other.m_Handle; }
+	inline bool			operator!=( const CBaseIntHandle &other )	{ return m_Handle != other.m_Handle; }
+
+	// Only the code that doles out these handles should use these functions.
+	// Everyone else should treat them as a transparent type.
+	inline HandleType	GetHandleValue()					{ return m_Handle; }
+	inline void			SetHandleValue( HandleType val )	{ m_Handle = val; }
+
+	typedef HandleType	HANDLE_TYPE;
+
+protected:
+
+	HandleType	m_Handle;
+};
+
+template< class DummyType >
+class CIntHandle16 : public CBaseIntHandle< unsigned short >
+{
+public:
+	inline			CIntHandle16() {}
+
+	static inline	CIntHandle16<DummyType> MakeHandle( HANDLE_TYPE val )
+	{
+		return CIntHandle16<DummyType>( val );
+	}
+
+protected:
+	inline			CIntHandle16( HANDLE_TYPE val )
+	{
+		m_Handle = val;
+	}
+};
+
+
+template< class DummyType >
+class CIntHandle32 : public CBaseIntHandle< unsigned long >
+{
+public:
+	inline			CIntHandle32() {}
+
+	static inline	CIntHandle32<DummyType> MakeHandle( HANDLE_TYPE val )
+	{
+		return CIntHandle32<DummyType>( val );
+	}
+
+protected:
+	inline			CIntHandle32( HANDLE_TYPE val )
+	{
+		m_Handle = val;
+	}
+};
+
+
+// NOTE: This macro is the same as windows uses; so don't change the guts of it
+#define DECLARE_HANDLE_16BIT(name)	typedef CIntHandle16< struct name##__handle * > name;
+#define DECLARE_HANDLE_32BIT(name)	typedef CIntHandle32< struct name##__handle * > name;
+
+#define DECLARE_POINTER_HANDLE(name) struct name##__ { int unused; }; typedef struct name##__ *name
+#define FORWARD_DECLARE_HANDLE(name) typedef struct name##__ *name
+
+// @TODO: Find a better home for this
+#if !defined(_STATIC_LINKED) && !defined(PUBLISH_DLL_SUBSYSTEM)
+// for platforms built with dynamic linking, the dll interface does not need spoofing
+#define PUBLISH_DLL_SUBSYSTEM()
+#endif
+
+#define UID_PREFIX generated_id_
+#define UID_CAT1(a,c) a ## c
+#define UID_CAT2(a,c) UID_CAT1(a,c)
+#define EXPAND_CONCAT(a,c) UID_CAT1(a,c)
+#ifdef _MSC_VER
+#define UNIQUE_ID UID_CAT2(UID_PREFIX,__COUNTER__)
+#else
+#define UNIQUE_ID UID_CAT2(UID_PREFIX,__LINE__)
+#endif
+
+// this allows enumerations to be used as flags, and still remain type-safe!
+#define DEFINE_ENUM_BITWISE_OPERATORS( Type ) \
+	inline Type  operator|  ( Type  a, Type b ) { return Type( int( a ) | int( b ) ); } \
+	inline Type  operator&  ( Type  a, Type b ) { return Type( int( a ) & int( b ) ); } \
+	inline Type  operator^  ( Type  a, Type b ) { return Type( int( a ) ^ int( b ) ); } \
+	inline Type  operator<< ( Type  a, int  b ) { return Type( int( a ) << b ); } \
+	inline Type  operator>> ( Type  a, int  b ) { return Type( int( a ) >> b ); } \
+	inline Type &operator|= ( Type &a, Type b ) { return a = a |  b; } \
+	inline Type &operator&= ( Type &a, Type b ) { return a = a &  b; } \
+	inline Type &operator^= ( Type &a, Type b ) { return a = a ^  b; } \
+	inline Type &operator<<=( Type &a, int  b ) { return a = a << b; } \
+	inline Type &operator>>=( Type &a, int  b ) { return a = a >> b; } \
+	inline Type  operator~( Type a ) { return Type( ~int( a ) ); }
+
+// defines increment/decrement operators for enums for easy iteration
+#define DEFINE_ENUM_INCREMENT_OPERATORS( Type ) \
+	inline Type &operator++( Type &a      ) { return a = Type( int( a ) + 1 ); } \
+	inline Type &operator--( Type &a      ) { return a = Type( int( a ) - 1 ); } \
+	inline Type  operator++( Type &a, int ) { Type t = a; ++a; return t; } \
+	inline Type  operator--( Type &a, int ) { Type t = a; --a; return t; }
+
+#include "tier0/valve_on.h"
+
+#endif // BASETYPES_H