sdk_util.cpp

// vi: set ts=4 sw=4 :
// vim: set tw=75 :

// sdk_util.cpp - utility routines from HL SDK util.cpp

// Selected portions of dlls/util.cpp from SDK 2.1.
// Functions copied from there as needed...

/***
*
*	Copyright (c) 1999, 2000 Valve LLC. All rights reserved.
*
*	This product contains software technology licensed from Id
*	Software, Inc. ("Id Technology").  Id Technology (c) 1996 Id Software, Inc.
*	All Rights Reserved.
*
*   Use, distribution, and modification of this source code and/or resulting
*   object code is restricted to non-commercial enhancements to products from
*   Valve LLC.  All other use, distribution, or modification is prohibited
*   without written permission from Valve LLC.
*
****/
/*

===== util.cpp ========================================================

  Utility code.  Really not optional after all.

*/

#include <extdll.h>
#include "sdk_util.h"
#include "cbase.h"
#include <string.h>
#include "osdep.h" // win32 v_snprintf, etc

char* UTIL_VarArgs(char* format, ...)
{
    va_list argptr;
    static char string[1024];

    va_start(argptr, format);
#ifdef WIN32
    _vsnprintf(string, 1024, format, argptr);
#else
    _vsnprintf(string, 1024, format, argptr);
#endif
    va_end(argptr);

    return string;
}

//=========================================================
// UTIL_LogPrintf - Prints a logged message to console.
// Preceded by LOG: ( timestamp ) < message >
//=========================================================
void UTIL_LogPrintf(char* format, ...)
{
    va_list argptr;
    static char string[1024];

    va_start(argptr, format);
#ifdef WIN32
    _vsnprintf(string, 1024, format, argptr);
#else
    _vsnprintf(string, 1024, format, argptr);
#endif
    va_end(argptr);

    // Print to server console
    ALERT(at_logged, "%s", string);
}

short FixedSigned16(float value, float scale)
{
    int output;

    output = (int)(value * scale);

    if(output > 32767)
        output = 32767;

    if(output < -32768)
        output = -32768;

    return (short)output;
}

unsigned short FixedUnsigned16(float value, float scale)
{
    int output;

    output = (int)(value * scale);
    if(output < 0)
        output = 0;
    if(output > 0xFFFF)
        output = 0xFFFF;

    return (unsigned short)output;
}