/*
Copyright (C) 1996-1997 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

    1$Id: common.h 643 2007-07-20 13:09:29Z d3urk $
*/
// common.h  -- general definitions

#ifndef __COMMON_H__
#define __COMMON_H__

//============================================================================
typedef struct sizebuf_s
{
	qbool allowoverflow;	// if false, do a Sys_Error
	qbool overflowed;	// set to true if the buffer size failed
	byte *data;
	int maxsize;
	int cursize;
} sizebuf_t;

void SZ_Clear (sizebuf_t *buf);
void SZ_Init (sizebuf_t *buf, byte *data, int length);
void *SZ_GetSpace (sizebuf_t *buf, int length);
void SZ_Write (sizebuf_t *buf, const void *data, int length);
void SZ_Print (sizebuf_t *buf, const char *data); // strcats onto the sizebuf

//============================================================================

struct usercmd_s;

extern struct usercmd_s nullcmd;

void MSG_WriteChar (sizebuf_t *sb, int c);
void MSG_WriteByte (sizebuf_t *sb, int c);
void MSG_WriteShort (sizebuf_t *sb, int c);
void MSG_WriteLong (sizebuf_t *sb, int c);
void MSG_WriteFloat (sizebuf_t *sb, float f);
void MSG_WriteString (sizebuf_t *sb, char *s);
void MSG_WriteCoord (sizebuf_t *sb, float f);
void MSG_WriteAngle (sizebuf_t *sb, float f);
void MSG_WriteAngle16 (sizebuf_t *sb, float f);
void MSG_WriteDeltaUsercmd (sizebuf_t *sb, struct usercmd_s *from, struct usercmd_s *cmd);

extern int msg_readcount;
extern qbool msg_badread; // set if a read goes beyond end of message

void MSG_BeginReading (void);
int MSG_GetReadCount(void);
int MSG_ReadChar (void);
int MSG_ReadByte (void);
int MSG_ReadShort (void);
int MSG_ReadLong (void);
float MSG_ReadFloat (void);
char *MSG_ReadString (void);
char *MSG_ReadStringLine (void);

float MSG_ReadCoord (void);
float MSG_ReadAngle (void);
float MSG_ReadAngle16 (void);
void MSG_ReadDeltaUsercmd (struct usercmd_s *from, struct usercmd_s *cmd);

//============================================================================

unsigned char *Q_normalizetext (unsigned char *name); //bliP: red to white text
unsigned char *Q_redtext (unsigned char *str); //bliP: white to red text
unsigned char *Q_yelltext (unsigned char *str); //VVD: white to red text and yellow numbers

//============================================================================

#define MAX_COM_TOKEN	1024
extern char com_token[MAX_COM_TOKEN];
typedef enum {TTP_UNKNOWN, TTP_STRING} com_tokentype_t;

char *COM_Parse (char *data);
char *COM_ParseToken (const char *data, const char *punctuation);

extern int com_argc;
extern char **com_argv;

int COM_CheckParm (const char *parm);

void COM_InitArgv (int argc, char **argv);

//============================================================================

char *Info_ValueForKey (char *s, const char *key);
char *Info_KeyNameForKeyNum (char *s, int key);
void Info_RemoveKey (char *s, const char *key);
void Info_RemovePrefixedKeys (char *start, char prefix);
void Info_SetValueForKey (char *s, const char *key, const char *value, unsigned int maxsize);
void Info_SetValueForStarKey (char *s, const char *key, const char *value, unsigned int maxsize);
void Info_Print (char *s);
void Info_CopyStarKeys (const char *from, char *to);

unsigned Com_BlockChecksum (void *buffer, int length);
void Com_BlockFullChecksum (void *buffer, int len, unsigned char *outbuf);
byte COM_BlockSequenceCRCByte (byte *base, int length, int sequence);

//============================================================================

qbool Q_glob_match (const char *pattern, const char *text);

//============================================================================

int Com_HashKey (const char *name);

#endif /* !__COMMON_H__ */