mirror of
https://github.com/unknownworlds/NS.git
synced 2024-11-24 13:31:14 +00:00
2f9f0c732e
git-svn-id: https://unknownworlds.svn.cloudforge.com/ns1@277 67975925-1194-0748-b3d5-c16f83f1a3a1
166 lines
2.5 KiB
C++
166 lines
2.5 KiB
C++
/***
|
|
*
|
|
* Copyright (c) 1999, 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.
|
|
*
|
|
****/
|
|
//
|
|
// parsemsg.cpp
|
|
//
|
|
typedef unsigned char byte;
|
|
#define true 1
|
|
|
|
static byte *gpBuf;
|
|
static int giSize;
|
|
static int giRead;
|
|
static int giBadRead;
|
|
|
|
void BEGIN_READ( void *buf, int size )
|
|
{
|
|
giRead = 0;
|
|
giBadRead = 0;
|
|
giSize = size;
|
|
gpBuf = (byte*)buf;
|
|
}
|
|
|
|
|
|
int READ_CHAR( void )
|
|
{
|
|
int c;
|
|
|
|
if (giRead + 1 > giSize)
|
|
{
|
|
giBadRead = true;
|
|
return -1;
|
|
}
|
|
|
|
c = (signed char)gpBuf[giRead];
|
|
giRead++;
|
|
|
|
return c;
|
|
}
|
|
|
|
int READ_BYTE( void )
|
|
{
|
|
int c;
|
|
|
|
if (giRead+1 > giSize)
|
|
{
|
|
giBadRead = true;
|
|
return -1;
|
|
}
|
|
|
|
c = (unsigned char)gpBuf[giRead];
|
|
giRead++;
|
|
|
|
return c;
|
|
}
|
|
|
|
int READ_SHORT( void )
|
|
{
|
|
int c;
|
|
|
|
if (giRead+2 > giSize)
|
|
{
|
|
giBadRead = true;
|
|
return -1;
|
|
}
|
|
|
|
c = (short)( gpBuf[giRead] + ( gpBuf[giRead+1] << 8 ) );
|
|
|
|
giRead += 2;
|
|
|
|
return c;
|
|
}
|
|
|
|
int READ_WORD( void )
|
|
{
|
|
return READ_SHORT();
|
|
}
|
|
|
|
|
|
int READ_LONG( void )
|
|
{
|
|
int c;
|
|
|
|
if (giRead+4 > giSize)
|
|
{
|
|
giBadRead = true;
|
|
return -1;
|
|
}
|
|
|
|
c = gpBuf[giRead] + (gpBuf[giRead + 1] << 8) + (gpBuf[giRead + 2] << 16) + (gpBuf[giRead + 3] << 24);
|
|
|
|
giRead += 4;
|
|
|
|
return c;
|
|
}
|
|
|
|
float READ_FLOAT( void )
|
|
{
|
|
union
|
|
{
|
|
byte b[4];
|
|
float f;
|
|
int l;
|
|
} dat;
|
|
|
|
dat.b[0] = gpBuf[giRead];
|
|
dat.b[1] = gpBuf[giRead+1];
|
|
dat.b[2] = gpBuf[giRead+2];
|
|
dat.b[3] = gpBuf[giRead+3];
|
|
giRead += 4;
|
|
|
|
// dat.l = LittleLong (dat.l);
|
|
|
|
return dat.f;
|
|
}
|
|
|
|
char* READ_STRING( void )
|
|
{
|
|
static char string[2048];
|
|
int l,c;
|
|
|
|
string[0] = 0;
|
|
|
|
l = 0;
|
|
do
|
|
{
|
|
if ( giRead+1 > giSize )
|
|
break; // no more characters
|
|
|
|
c = READ_CHAR();
|
|
if (c == -1 || c == 0)
|
|
break;
|
|
string[l] = c;
|
|
l++;
|
|
} while (l < sizeof(string)-1);
|
|
|
|
string[l] = 0;
|
|
|
|
return string;
|
|
}
|
|
|
|
float READ_COORD( void )
|
|
{
|
|
return (float)(READ_SHORT() * (1.0/8));
|
|
}
|
|
|
|
float READ_ANGLE( void )
|
|
{
|
|
return (float)(READ_CHAR() * (360.0/256));
|
|
}
|
|
|
|
float READ_HIRESANGLE( void )
|
|
{
|
|
return (float)(READ_SHORT() * (360.0/65536));
|
|
}
|
|
|