csgo-2018-source/engine/buildnum.cpp
2021-07-24 21:11:47 -07:00

80 lines
1.6 KiB
C++

//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//
//=============================================================================//
#include "quakedef.h"
#include "tier1/strtools.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
//char *date = "Nov 07 1998"; // "Oct 24 1996";
char *date = __DATE__ ;
char *mon[12] =
{ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
char mond[12] =
{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
class CBuildNumber
{
public:
CBuildNumber( void )
{
ComputeBuildNumber();
}
// returns days since Nov 07 1998
int GetBuildNumber( void )
{
return m_nBuildNumber;
}
private:
void ComputeBuildNumber( void )
{
int m = 0;
int d = 0;
int y = 0;
for (m = 0; m < 11; m++)
{
if (Q_strncasecmp( &date[0], mon[m], 3 ) == 0)
break;
d += mond[m];
}
d += atoi( &date[4] ) - 1;
y = atoi( &date[7] ) - 1900;
m_nBuildNumber = d + (int)((y - 1) * 365.25);
if (((y % 4) == 0) && m > 1)
{
m_nBuildNumber += 1;
}
//m_nBuildNumber -= 34995; // Oct 24 1996
m_nBuildNumber -= 35739; // Nov 7 1998 (HL1 Gold Date)
}
int m_nBuildNumber;
};
// Singleton
static CBuildNumber g_BuildNumber;
//-----------------------------------------------------------------------------
// Purpose: Only compute build number the first time we run the app
// Output : int
//-----------------------------------------------------------------------------
int build_number( void )
{
return g_BuildNumber.GetBuildNumber();
}