// Copyright (C) 1999-2000 Id Software, Inc.
//
#ifndef __Q_SHARED_H
#define __Q_SHARED_H

// q_shared.h -- included first by ALL program modules.
// A user mod should never modify this file
//INCIN DISABLE MISSIONPACK BUILDS BY REMOVING/COMMENTING THESE LINES
//#ifndef MISSIONPACK
//#define MISSIONPACK
//#endif

#define	Q3_VERSION		"Q3 1.32b"
// 1.32 released 7-10-2002

//unlagged - lag simulation #2
#define MAX_LATENT_CMDS 64
//unlagged - lag simulation #2

#define MAX_TEAMNAME 32

#ifdef _WIN32

#pragma warning(disable : 4018)     // signed/unsigned mismatch
#pragma warning(disable : 4032)
#pragma warning(disable : 4051)
#pragma warning(disable : 4057)		// slightly different base types
#pragma warning(disable : 4100)		// unreferenced formal parameter
#pragma warning(disable : 4115)
#pragma warning(disable : 4125)		// decimal digit terminates octal escape sequence
#pragma warning(disable : 4127)		// conditional expression is constant
#pragma warning(disable : 4136)
//#pragma warning(disable : 4152)		// nonstandard extension, function/data pointer conversion in expression
//#pragma warning(disable : 4201)
//#pragma warning(disable : 4214)
#pragma warning(disable : 4244)
#pragma warning(disable : 4142)		// benign redefinition
//#pragma warning(disable : 4305)		// truncation from const double to float
//#pragma warning(disable : 4310)		// cast truncates constant value
//#pragma warning(disable:  4505) 	// unreferenced local function has been removed
#pragma warning(disable : 4514)
#pragma warning(disable : 4702)		// unreachable code
//#pragma warning(disable : 4711)		// selected for automatic inline expansion
#pragma warning(disable : 4220)		// varargs matches remaining parameters
#endif

/**********************************************************************
  VM Considerations
 
  The VM can not use the standard system headers because we aren't really
  using the compiler they were meant for.  We use bg_lib.h which contains
  prototypes for the functions we define for our own use in bg_lib.c.
 
  When writing mods, please add needed headers HERE, do not start including
  stuff like <stdio.h> in the various .c files that make up each of the VMs
  since you will be including system headers files can will have issues.
 
  Remember, if you use a C library function that is not defined in bg_lib.c,
  you will have to add your own version for support in the VM.
 
 **********************************************************************/

#ifdef Q3_VM

#include "bg_lib.h"

#else

#include <assert.h>
#include <math.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <ctype.h>
#include <limits.h>

#endif

#ifdef _WIN32

#pragma intrinsic( memset, memcpy, memcmp )
#pragma intrinsic(atan, exp, log10, sqrt, atan2, log, sin, tan, cos)
#pragma intrinsic (abs, fabs, strcat, strcmp, strcpy, strlen)

#endif


// this is the define for determining if we have an asm version of a C function
#if (defined _M_IX86 || defined __i386__) && !defined __sun__  && !defined __LCC__
#define id386	1
#else
#define id386	0
#endif

#if (defined(powerc) || defined(powerpc) || defined(ppc) || defined(__ppc) || defined(__ppc__)) && !defined(C_ONLY)
#define idppc	1
#else
#define idppc	0
#endif

// for windows fastcall option

#define	QDECL

short   ShortSwap (short l);
int		LongSwap (int l);
float	FloatSwap (const float *f);

//======================= WIN32 DEFINES =================================

#ifdef WIN32

#define	MAC_STATIC

#undef QDECL
#define	QDECL	__cdecl

// buildstring will be incorporated into the version string
#ifdef NDEBUG
#ifdef _M_IX86
#define	CPUSTRING	"win-x86"
#elif defined _M_ALPHA
#define	CPUSTRING	"win-AXP"
#endif
#else
#ifdef _M_IX86
#define	CPUSTRING	"win-x86-debug"
#elif defined _M_ALPHA
#define	CPUSTRING	"win-AXP-debug"
#endif
#endif

#define ID_INLINE __inline

static ID_INLINE short BigShort( short l) {
    return ShortSwap(l);
}
#define LittleShort
static ID_INLINE int BigLong(int l) {
    LongSwap(l);
}
#define LittleLong
static ID_INLINE float BigFloat(const float *l) {
    FloatSwap(l);
}
#define LittleFloat

#define	PATH_SEP '\\'

#endif

//======================= MAC OS X DEFINES =====================

#if defined(MACOS_X)

#define MAC_STATIC
#define __cdecl
#define __declspec(x)
#define stricmp strcasecmp
#define ID_INLINE inline

#ifdef __ppc__
#define CPUSTRING	"MacOSX-ppc"
#elif defined __i386__
#define CPUSTRING	"MacOSX-i386"
#else
#define CPUSTRING	"MacOSX-other"
#endif

#define	PATH_SEP	'/'

#define __rlwimi(out, in, shift, maskBegin, maskEnd) asm("rlwimi %0,%1,%2,%3,%4" : "=r" (out) : "r" (in), "i" (shift), "i" (maskBegin), "i" (maskEnd))
#define __dcbt(addr, offset) asm("dcbt %0,%1" : : "b" (addr), "r" (offset))

static inline unsigned int __lwbrx(register void *addr, register int offset) {
    register unsigned int word;

asm("lwbrx %0,%2,%1" : "=r" (word) : "r" (addr), "b" (offset));
    return word;
}

static inline unsigned short __lhbrx(register void *addr, register int offset) {
    register unsigned short halfword;

asm("lhbrx %0,%2,%1" : "=r" (halfword) : "r" (addr), "b" (offset));
    return halfword;
}

static inline float __fctiw(register float f) {
    register float fi;

asm("fctiw %0,%1" : "=f" (fi) : "f" (f));

    return fi;
}

#define BigShort
static inline short LittleShort(short l) {
    return ShortSwap(l);
}
#define BigLong
static inline int LittleLong (int l) {
    return LongSwap(l);
}
#define BigFloat
static inline float LittleFloat (const float l) {
    return FloatSwap(&l);
}

#endif

//======================= MAC DEFINES =================================

#ifdef __MACOS__

#include <MacTypes.h>
#define	MAC_STATIC
#define ID_INLINE inline

#define	CPUSTRING	"MacOS-PPC"

#define	PATH_SEP ':'

void Sys_PumpEvents( void );

#define BigShort
static inline short LittleShort(short l) {
    return ShortSwap(l);
}
#define BigLong
static inline int LittleLong (int l) {
    return LongSwap(l);
}
#define BigFloat
static inline float LittleFloat (const float l) {
    return FloatSwap(&l);
}

#endif

//======================= LINUX DEFINES =================================

// the mac compiler can't handle >32k of locals, so we
// just waste space and make big arrays static...
#ifdef __linux__

// bk001205 - from Makefile
#define stricmp strcasecmp

#define	MAC_STATIC // bk: FIXME
#define ID_INLINE inline

#ifdef __i386__
#define	CPUSTRING	"linux-i386"
#elif defined __axp__
#define	CPUSTRING	"linux-alpha"
#else
#define	CPUSTRING	"linux-other"
#endif

#define	PATH_SEP '/'

// bk001205 - try
#ifdef Q3_STATIC
#define	GAME_HARD_LINKED
#define	CGAME_HARD_LINKED
#define	UI_HARD_LINKED
#define	BOTLIB_HARD_LINKED
#endif

#if !idppc
inline static short BigShort( short l) {
    return ShortSwap(l);
}
#define LittleShort
inline static int BigLong(int l) {
    return LongSwap(l);
}
#define LittleLong
inline static float BigFloat(const float *l) {
    return FloatSwap(l);
}
#define LittleFloat
#else
#define BigShort
inline static short LittleShort(short l) {
    return ShortSwap(l);
}
#define BigLong
inline static int LittleLong (int l) {
    return LongSwap(l);
}
#define BigFloat
inline static float LittleFloat (const float *l) {
    return FloatSwap(l);
}
#endif

#endif

//======================= FreeBSD DEFINES =====================
#ifdef __FreeBSD__ // rb010123

#define stricmp strcasecmp

#define MAC_STATIC
#define ID_INLINE inline

#ifdef __i386__
#define CPUSTRING       "freebsd-i386"
#elif defined __axp__
#define CPUSTRING       "freebsd-alpha"
#else
#define CPUSTRING       "freebsd-other"
#endif

#define	PATH_SEP '/'

// bk010116 - omitted Q3STATIC (see Linux above), broken target

#if !idppc
static short BigShort( short l) {
    return ShortSwap(l);
}
#define LittleShort
static int BigLong(int l) {
    LongSwap(l);
}
#define LittleLong
static float BigFloat(const float *l) {
    FloatSwap(l);
}
#define LittleFloat
#else
#define BigShort
static short LittleShort(short l) {
    return ShortSwap(l);
}
#define BigLong
static int LittleLong (int l) {
    return LongSwap(l);
}
#define BigFloat
static float LittleFloat (const float *l) {
    return FloatSwap(l);
}
#endif

#endif

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

typedef unsigned char 		byte;

typedef enum {qfalse, qtrue}	qboolean;

typedef int		qhandle_t;
typedef int		sfxHandle_t;
typedef int		fileHandle_t;
typedef int		clipHandle_t;


#ifndef NULL
#define NULL ((void *)0)
#endif

#define	MAX_QINT			0x7fffffff
#define	MIN_QINT			(-MAX_QINT-1)


// angle indexes
#define	PITCH				0		// up / down
#define	YAW					1		// left / right
#define	ROLL				2		// fall over

// the game guarantees that no string from the network will ever
// exceed MAX_STRING_CHARS
#define	MAX_STRING_CHARS	1024	// max length of a string passed to Cmd_TokenizeString
#define	MAX_STRING_TOKENS	1024	// max tokens resulting from Cmd_TokenizeString
#define	MAX_TOKEN_CHARS		1024	// max length of an individual token

#define	MAX_INFO_STRING		1024
#define	MAX_INFO_KEY		1024
#define	MAX_INFO_VALUE		1024

#define	BIG_INFO_STRING		8192  // used for system info key only
#define	BIG_INFO_KEY		8192
#define	BIG_INFO_VALUE		8192


#define	MAX_QPATH			64		// max length of a quake game pathname
#ifdef PATH_MAX
#define MAX_OSPATH			PATH_MAX
#else
#define	MAX_OSPATH			256		// max length of a filesystem pathname
#endif

#define	MAX_NAME_LENGTH		32		// max length of a client name

#define	MAX_SAY_TEXT	150

// paramters for command buffer stuffing
typedef enum {
    EXEC_NOW,			// don't return until completed, a VM should NEVER use this,
    // because some commands might cause the VM to be unloaded...
    EXEC_INSERT,		// insert at current position, but don't run yet
    EXEC_APPEND			// add to end of the command buffer (normal case)
} cbufExec_t;


//
// these aren't needed by any of the VMs.  put in another header?
//
#define	MAX_MAP_AREA_BYTES		32		// bit vector of area visibility


// print levels from renderer (FIXME: set up for game / cgame?)
typedef enum {
    PRINT_ALL,
    PRINT_DEVELOPER,		// only print when "developer 1"
    PRINT_WARNING,
    PRINT_ERROR
} printParm_t;


#ifdef ERR_FATAL
#undef ERR_FATAL			// this is be defined in malloc.h
#endif

// parameters to the main Error routine
typedef enum {
    ERR_FATAL,					// exit the entire game with a popup window
    ERR_DROP,					// print to console and disconnect from game
    ERR_SERVERDISCONNECT,		// don't kill server
    ERR_DISCONNECT,				// client disconnected from the server
    ERR_NEED_CD					// pop up the need-cd dialog
} errorParm_t;


// font rendering values used by ui and cgame

#define PROP_GAP_WIDTH			3
#define PROP_SPACE_WIDTH		8
#define PROP_HEIGHT				27
#define PROP_SMALL_SIZE_SCALE	0.75

#define BLINK_DIVISOR			200
#define PULSE_DIVISOR			75

#define UI_LEFT			0x00000000	// default
#define UI_CENTER		0x00000001
#define UI_RIGHT		0x00000002
#define UI_FORMATMASK	0x00000007
#define UI_SMALLFONT	0x00000010
#define UI_BIGFONT		0x00000020	// default
#define UI_GIANTFONT	0x00000040
#define UI_DROPSHADOW	0x00000800
#define UI_BLINK		0x00001000
#define UI_INVERSE		0x00002000
#define UI_PULSE		0x00004000

#if defined(_DEBUG) && !defined(BSPC)
	#define HUNK_DEBUG
#endif

typedef enum {
    h_high,
    h_low,
    h_dontcare
} ha_pref;

#ifdef HUNK_DEBUG
#define Hunk_Alloc( size, preference )				Hunk_AllocDebug(size, preference, #size, __FILE__, __LINE__)
void *Hunk_AllocDebug( int size, ha_pref preference, char *label, char *file, int line );
#else
void *Hunk_Alloc( int size, ha_pref preference );
#endif

#ifdef __linux__
// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=371
// custom Snd_Memset implementation for glibc memset bug workaround
void Snd_Memset (void* dest, const int val, const size_t count);
#else
#define Snd_Memset Com_Memset
#endif

#if !( defined __VECTORC )
void Com_Memset (void* dest, const int val, const size_t count);
void Com_Memcpy (void* dest, const void* src, const size_t count);
#else
#define Com_Memset memset
#define Com_Memcpy memcpy
#endif

#define CIN_system	1
#define CIN_loop	2
#define	CIN_hold	4
#define CIN_silent	8
#define CIN_shader	16

/*
==============================================================
 
MATHLIB
 
==============================================================
*/


typedef float vec_t;
typedef vec_t vec2_t[2];
typedef vec_t vec3_t[3];
typedef vec_t vec4_t[4];
typedef vec_t vec5_t[5];

typedef	int	fixed4_t;
typedef	int	fixed8_t;
typedef	int	fixed16_t;

#ifndef M_PI
#define M_PI		3.14159265358979323846f	// matches value in gcc v2 math.h
#endif

#define NUMVERTEXNORMALS	162
extern	vec3_t	bytedirs[NUMVERTEXNORMALS];

// all drawing is done to a 640*480 virtual screen size
// and will be automatically scaled to the real resolution
#define	SCREEN_WIDTH		640
#define	SCREEN_HEIGHT		480

#define TINYCHAR_WIDTH		(SMALLCHAR_WIDTH)
#define TINYCHAR_HEIGHT		(SMALLCHAR_HEIGHT/2)

#define SMALLCHAR_WIDTH		8
#define SMALLCHAR_HEIGHT	16

#define BIGCHAR_WIDTH		16
#define BIGCHAR_HEIGHT		16

#define	GIANTCHAR_WIDTH		32
#define	GIANTCHAR_HEIGHT	48

extern	vec4_t		colorBlack;
extern	vec4_t		colorRed;
extern	vec4_t		colorGreen;
extern	vec4_t		colorBlue;
extern	vec4_t		colorYellow;
extern	vec4_t		colorMagenta;
extern	vec4_t		colorCyan;
extern	vec4_t		colorWhite;
extern	vec4_t		colorLtGrey;
extern	vec4_t		colorMdGrey;
extern	vec4_t		colorDkGrey;
extern	vec4_t		colorOrange;

#define Q_COLOR_ESCAPE	'^'
#define Q_IsColorString(p)	( p && *(p) == Q_COLOR_ESCAPE && *((p)+1) && *((p)+1) != Q_COLOR_ESCAPE )

#define COLOR_BLACK		'0'
#define COLOR_RED		'1'
#define COLOR_GREEN		'2'
#define COLOR_YELLOW	'3'
#define COLOR_BLUE		'4'
#define COLOR_CYAN		'5'
#define COLOR_MAGENTA	'6'
#define COLOR_WHITE		'7'
#define COLOR_ORANGE	'8'
//BB
//#define ColorIndex(c)	( ( (c) - '0' ) & 7 )
#define ColorIndex(c)	( ( (c) - '0' ) & 15 )
//#define ColorIndex(c)	( 9 )

#define S_COLOR_BLACK	"^0"
#define S_COLOR_RED		"^1"
#define S_COLOR_GREEN	"^2"
#define S_COLOR_YELLOW	"^3"
#define S_COLOR_BLUE	"^4"
#define S_COLOR_CYAN	"^5"
#define S_COLOR_MAGENTA	"^6"
#define S_COLOR_WHITE	"^7"
//BB
#define S_COLOR_ORANGE	"^8"

extern vec4_t	g_color_table[9];

#define	MAKERGB( v, r, g, b ) v[0]=r;v[1]=g;v[2]=b
#define	MAKERGBA( v, r, g, b, a ) v[0]=r;v[1]=g;v[2]=b;v[3]=a

#define DEG2RAD( a ) ( ( (a) * M_PI ) / 180.0F )
#define RAD2DEG( a ) ( ( (a) * 180.0f ) / M_PI )

struct cplane_s;

extern	vec3_t	vec3_origin;
extern	vec3_t	axisDefault[3];

#define	nanmask (255<<23)

#define	IS_NAN(x) (((*(int *)&x)&nanmask)==nanmask)

#if idppc

static inline float Q_rsqrt( float number ) {
    float x = 0.5f * number;
    float y;
#ifdef __GNUC__

asm("frsqrte %0,%1" : "=f" (y) : "f" (number));
#else

    y = __frsqrte( number );
#endif

    return y * (1.5f - (x * y * y));
}

#ifdef __GNUC__
static inline float Q_fabs(float x) {
    float abs_x;

asm("fabs %0,%1" : "=f" (abs_x) : "f" (x));
    return abs_x;
}
#else
#define Q_fabs __fabsf
#endif

#else
float Q_fabs( float f );
float Q_rsqrt( float f );		// reciprocal square root
#endif

#define SQRTFAST( x ) ( (x) * Q_rsqrt( x ) )

signed char ClampChar( int i );
signed short ClampShort( int i );

// this isn't a real cheap function to call!
int DirToByte( vec3_t dir );
void ByteToDir( int b, vec3_t dir );
/*
VectorSubtract(a,b,c) - subtract b from a, result is c 
VectorAdd(a,b,c) - add a to b, result is c 
VectorCopy(a,b) - copy a to b 
VectorScale(v,s,o) - make v s units long, result in o 
VectorMA(v,s,b,o) - make b s units long, add to v, result in o 
VectorClear(a) - too easy 
VectorNegate(a,b) - flip a, result in b 
VectorSet(v,x,y,z) - another easy one 
Vector4Copy(a,b) - used for 4 dimensional vectors 
SnapVector(v) - round a vector to integer values 
*/
#if	1

#define DotProduct(x,y)			((x)[0]*(y)[0]+(x)[1]*(y)[1]+(x)[2]*(y)[2])
#define VectorSubtract(a,b,c)	((c)[0]=(a)[0]-(b)[0],(c)[1]=(a)[1]-(b)[1],(c)[2]=(a)[2]-(b)[2])
#define VectorAdd(a,b,c)		((c)[0]=(a)[0]+(b)[0],(c)[1]=(a)[1]+(b)[1],(c)[2]=(a)[2]+(b)[2])
#define VectorCopy(a,b)			((b)[0]=(a)[0],(b)[1]=(a)[1],(b)[2]=(a)[2])
#define	VectorScale(v, s, o)	((o)[0]=(v)[0]*(s),(o)[1]=(v)[1]*(s),(o)[2]=(v)[2]*(s))
#define	VectorMA(v, s, b, o)	((o)[0]=(v)[0]+(b)[0]*(s),(o)[1]=(v)[1]+(b)[1]*(s),(o)[2]=(v)[2]+(b)[2]*(s))

#else

#define DotProduct(x,y)			_DotProduct(x,y)
#define VectorSubtract(a,b,c)	_VectorSubtract(a,b,c)
#define VectorAdd(a,b,c)		_VectorAdd(a,b,c)
#define VectorCopy(a,b)			_VectorCopy(a,b)
#define	VectorScale(v, s, o)	_VectorScale(v,s,o)
#define	VectorMA(v, s, b, o)	_VectorMA(v,s,b,o)

#endif

#ifdef __LCC__
#ifdef VectorCopy
#undef VectorCopy
// this is a little hack to get more efficient copies in our interpreter
typedef struct {
    float	v[3];
}
vec3struct_t;

#define VectorCopy(a,b)	(*(vec3struct_t *)b=*(vec3struct_t *)a)
#define ID_INLINE static
#endif
#endif

#define VectorClear(a)			((a)[0]=(a)[1]=(a)[2]=0)
#define VectorNegate(a,b)		((b)[0]=-(a)[0],(b)[1]=-(a)[1],(b)[2]=-(a)[2])
#define VectorSet(v, x, y, z)	((v)[0]=(x), (v)[1]=(y), (v)[2]=(z))
#define Vector4Copy(a,b)		((b)[0]=(a)[0],(b)[1]=(a)[1],(b)[2]=(a)[2],(b)[3]=(a)[3])

#define	SnapVector(v) {v[0]=((int)(v[0]));v[1]=((int)(v[1]));v[2]=((int)(v[2]));}
//unlagged - attack prediction #3
// moved from g_weapon.c
void SnapVectorTowards( vec3_t v, vec3_t to );
//unlagged - attack prediction #3

// just in case you do't want to use the macros
vec_t _DotProduct( const vec3_t v1, const vec3_t v2 );
void _VectorSubtract( const vec3_t veca, const vec3_t vecb, vec3_t out );
void _VectorAdd( const vec3_t veca, const vec3_t vecb, vec3_t out );
void _VectorCopy( const vec3_t in, vec3_t out );
void _VectorScale( const vec3_t in, float scale, vec3_t out );
void _VectorMA( const vec3_t veca, float scale, const vec3_t vecb, vec3_t vecc );
void _Vector4Copy( const vec4_t in, vec4_t out );

unsigned ColorBytes3 (float r, float g, float b);
unsigned ColorBytes4 (float r, float g, float b, float a);

float NormalizeColor( const vec3_t in, vec3_t out );

float RadiusFromBounds( const vec3_t mins, const vec3_t maxs );
void ClearBounds( vec3_t mins, vec3_t maxs );
void AddPointToBounds( const vec3_t v, vec3_t mins, vec3_t maxs );

#ifndef __LCC__
static ID_INLINE int VectorCompare( const vec3_t v1, const vec3_t v2 ) {
    if (v1[0] != v2[0] || v1[1] != v2[1] || v1[2] != v2[2]) {
        return 0;
    }
    return 1;
}

static ID_INLINE vec_t VectorLength( const vec3_t v ) {
    return (vec_t)sqrt (v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
}

static ID_INLINE vec_t VectorLengthSquared( const vec3_t v ) {
    return (v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
}

static ID_INLINE vec_t Distance( const vec3_t p1, const vec3_t p2 ) {
    vec3_t	v;

    VectorSubtract (p2, p1, v);
    return VectorLength( v );
}

static ID_INLINE vec_t DistanceSquared( const vec3_t p1, const vec3_t p2 ) {
    vec3_t	v;

    VectorSubtract (p2, p1, v);
    return v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
}

// fast vector normalize routine that does not check to make sure
// that length != 0, nor does it return length, uses rsqrt approximation
static ID_INLINE void VectorNormalizeFast( vec3_t v ) {
    float ilength;

    ilength = Q_rsqrt( DotProduct( v, v ) );

    v[0] *= ilength;
    v[1] *= ilength;
    v[2] *= ilength;
}

static ID_INLINE void VectorInverse( vec3_t v ) {
    v[0] = -v[0];
    v[1] = -v[1];
    v[2] = -v[2];
}

static ID_INLINE void CrossProduct( const vec3_t v1, const vec3_t v2, vec3_t cross ) {
    cross[0] = v1[1]*v2[2] - v1[2]*v2[1];
    cross[1] = v1[2]*v2[0] - v1[0]*v2[2];
    cross[2] = v1[0]*v2[1] - v1[1]*v2[0];
}

#else
int VectorCompare( const vec3_t v1, const vec3_t v2 );

vec_t VectorLength( const vec3_t v );

vec_t VectorLengthSquared( const vec3_t v );

vec_t Distance( const vec3_t p1, const vec3_t p2 );

vec_t DistanceSquared( const vec3_t p1, const vec3_t p2 );

void VectorNormalizeFast( vec3_t v );

void VectorInverse( vec3_t v );

void CrossProduct( const vec3_t v1, const vec3_t v2, vec3_t cross );

#endif

vec_t VectorNormalize (vec3_t v);		// returns vector length
vec_t VectorNormalize2( const vec3_t v, vec3_t out );
void Vector4Scale( const vec4_t in, vec_t scale, vec4_t out );
void VectorRotate( vec3_t in, vec3_t matrix[3], vec3_t out );
int Q_log2(int val);

float Q_acos(float c);

int		Q_rand( int *seed );
float	Q_random( int *seed );
float	Q_crandom( int *seed );

#define random()	((rand () & 0x7fff) / ((float)0x7fff))
#define crandom()	(2.0 * (random() - 0.5))

void vectoangles( const vec3_t value1, vec3_t angles);
void AnglesToAxis( const vec3_t angles, vec3_t axis[3] );

void AxisClear( vec3_t axis[3] );
void AxisCopy( vec3_t in[3], vec3_t out[3] );

void SetPlaneSignbits( struct cplane_s *out );
//int BoxOnPlaneSide (vec3_t emins, vec3_t emaxs, struct cplane_s *plane);

float	AngleMod(float a);
float	LerpAngle (float from, float to, float frac);
float	AngleSubtract( float a1, float a2 );
void	AnglesSubtract( vec3_t v1, vec3_t v2, vec3_t v3 );

float AngleNormalize360 ( float angle );
float AngleNormalize180 ( float angle );
float AngleDelta ( float angle1, float angle2 );

qboolean PlaneFromPoints( vec4_t plane, const vec3_t a, const vec3_t b, const vec3_t c );
void ProjectPointOnPlane( vec3_t dst, const vec3_t p, const vec3_t normal );
void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees );
void RotateAroundDirection( vec3_t axis[3], float yaw );
void MakeNormalVectors( const vec3_t forward, vec3_t right, vec3_t up );
// perpendicular vector could be replaced by this

//int	PlaneTypeForNormal (vec3_t normal);

void MatrixMultiply(float in1[3][3], float in2[3][3], float out[3][3]);
void AngleVectors( const vec3_t angles, vec3_t forward, vec3_t right, vec3_t up);
void PerpendicularVector( vec3_t dst, const vec3_t src );


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

float Com_Clamp( float min, float max, float value );

char	*COM_SkipPath( char *pathname );
void	COM_StripExtension( const char *in, char *out );
void	COM_DefaultExtension( char *path, int maxSize, const char *extension );

void	COM_BeginParseSession( const char *name );
int		COM_GetCurrentParseLine( void );
char	*COM_Parse( char **data_p );
char	*COM_ParseExt( char **data_p, qboolean allowLineBreak );
int		COM_Compress( char *data_p );
void	COM_ParseError( char *format, ... );
void	COM_ParseWarning( char *format, ... );
//int		COM_ParseInfos( char *buf, int max, char infos[][MAX_INFO_STRING] );

#define MAX_TOKENLENGTH		1024

#ifndef TT_STRING
//token types
#define TT_STRING					1			// string
#define TT_LITERAL					2			// literal
#define TT_NUMBER					3			// number
#define TT_NAME						4			// name
#define TT_PUNCTUATION				5			// punctuation
#endif

typedef struct pc_token_s {
    int type;
    int subtype;
    int intvalue;
    float floatvalue;
    char string[MAX_TOKENLENGTH];
}
pc_token_t;

// data is an in/out parm, returns a parsed out token

void	COM_MatchToken( char**buf_p, char *match );

void SkipBracedSection (char **program);
void SkipRestOfLine ( char **data );

void Parse1DMatrix (char **buf_p, int x, float *m);
void Parse2DMatrix (char **buf_p, int y, int x, float *m);
void Parse3DMatrix (char **buf_p, int z, int y, int x, float *m);

void	QDECL Com_sprintf (char *dest, int size, const char *fmt, ...);


// mode parm for FS_FOpenFile
typedef enum {
    FS_READ,
    FS_WRITE,
    FS_APPEND,
    FS_APPEND_SYNC
} fsMode_t;

typedef enum {
    FS_SEEK_CUR,
    FS_SEEK_END,
    FS_SEEK_SET
} fsOrigin_t;

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

int Q_isprint( int c );
int Q_islower( int c );
int Q_isupper( int c );
int Q_isalpha( int c );

// portable case insensitive compare
int		Q_stricmp (const char *s1, const char *s2);
int		Q_strncmp (const char *s1, const char *s2, int n);
int		Q_stricmpn (const char *s1, const char *s2, int n);
char	*Q_strlwr( char *s1 );
char	*Q_strupr( char *s1 );
char	*Q_strrchr( const char* string, int c );

// buffer size safe library replacements
void	Q_strncpyz( char *dest, const char *src, int destsize );
void	Q_strcat( char *dest, int size, const char *src );

// strlen that discounts Quake color sequences
int Q_PrintStrlen( const char *string );
// removes color sequences from string
char *Q_CleanStr( char *string );

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

// 64-bit integers for global rankings interface
// implemented as a struct for qvm compatibility
typedef struct {
    byte	b0;
    byte	b1;
    byte	b2;
    byte	b3;
    byte	b4;
    byte	b5;
    byte	b6;
    byte	b7;
}
qint64;

//=============================================
/*
short	BigShort(short l);
short	LittleShort(short l);
int		BigLong (int l);
int		LittleLong (int l);
qint64  BigLong64 (qint64 l);
qint64  LittleLong64 (qint64 l);
float	BigFloat (const float *l);
float	LittleFloat (const float *l);
 
void	Swap_Init (void);
*/
char	* QDECL va(char *format, ...);

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

//
// key / value info strings
//
char *Info_ValueForKey( const char *s, const char *key );
void Info_RemoveKey( char *s, const char *key );
void Info_RemoveKey_big( char *s, const char *key );
void Info_SetValueForKey( char *s, const char *key, const char *value );
void Info_SetValueForKey_Big( char *s, const char *key, const char *value );
qboolean Info_Validate( const char *s );
void Info_NextPair( const char **s, char *key, char *value );

// this is only here so the functions in q_shared.c and bg_*.c can link
void	QDECL Com_Error( int level, const char *error, ... );
void	QDECL Com_Printf( const char *msg, ... );


/*
==========================================================
 
CVARS (console variables)
 
Many variables can be used for cheating purposes, so when
cheats is zero, force all unspecified variables to their
default values.
==========================================================
*/

#define	CVAR_ARCHIVE		1	// set to cause it to be saved to vars.rc
// used for system variables, not for player
// specific configurations
#define	CVAR_USERINFO		2	// sent to server on connect or change
#define	CVAR_SERVERINFO		4	// sent in response to front end requests
#define	CVAR_SYSTEMINFO		8	// these cvars will be duplicated on all clients
#define	CVAR_INIT			16	// don't allow change from console at all,
// but can be set from the command line
#define	CVAR_LATCH			32	// will only change when C code next does
// a Cvar_Get(), so it can't be changed
// without proper initialization.  modified
// will be set, even though the value hasn't
// changed yet
#define	CVAR_ROM			64	// display only, cannot be set by user at all
#define	CVAR_USER_CREATED	128	// created by a set command
#define	CVAR_TEMP			256	// can be set even when cheats are disabled, but is not archived
#define CVAR_CHEAT			512	// can not be changed if cheats are disabled
#define CVAR_NORESTART		1024	// do not clear when a cvar_restart is issued

// nothing outside the Cvar_*() functions should modify these fields!
typedef struct cvar_s {
    char		*name;
    char		*string;
    char		*resetString;		// cvar_restart will reset to this value
    char		*latchedString;		// for CVAR_LATCH vars
    int			flags;
    qboolean	modified;			// set each time the cvar is changed
    int			modificationCount;	// incremented each time the cvar is changed
    float		value;				// atof( string )
    int			integer;			// atoi( string )
    struct cvar_s *next;
    struct cvar_s *hashNext;
}
cvar_t;

#define	MAX_CVAR_VALUE_STRING	256

typedef int	cvarHandle_t;

// the modules that run in the virtual machine can't access the cvar_t directly,
// so they must ask for structured updates
typedef struct {
    cvarHandle_t	handle;
    int			modificationCount;
    float		value;
    int			integer;
    char		string[MAX_CVAR_VALUE_STRING];
}
vmCvar_t;

/*
==============================================================
 
COLLISION DETECTION
 
==============================================================
*/

#include "surfaceflags.h"			// shared with the q3map utility

// plane types are used to speed some tests
// 0-2 are axial planes
#define	PLANE_X			0
#define	PLANE_Y			1
#define	PLANE_Z			2
#define	PLANE_NON_AXIAL	3


/*
=================
PlaneTypeForNormal
=================
*/

#define PlaneTypeForNormal(x) (x[0] == 1.0 ? PLANE_X : (x[1] == 1.0 ? PLANE_Y : (x[2] == 1.0 ? PLANE_Z : PLANE_NON_AXIAL) ) )

// plane_t structure
// !!! if this is changed, it must be changed in asm code too !!!
typedef struct cplane_s {
    vec3_t	normal;
    float	dist;
    byte	type;			// for fast side tests: 0,1,2 = axial, 3 = nonaxial
    byte	signbits;		// signx + (signy<<1) + (signz<<2), used as lookup during collision
    byte	pad[2];
}
cplane_t;


// a trace is returned when a box is swept through the world
typedef struct {
    qboolean	allsolid;	// if true, plane is not valid
    qboolean	startsolid;	// if true, the initial point was in a solid area
    float		fraction;	// time completed, 1.0 = didn't hit anything
    vec3_t		endpos;		// final position
    cplane_t	plane;		// surface normal at impact, transformed to world space
    int			surfaceFlags;	// surface hit
    int			contents;	// contents on other side of surface hit
    int			entityNum;	// entity the contacted sirface is a part of
}
trace_t;

// trace->entityNum can also be 0 to (MAX_GENTITIES-1)
// or ENTITYNUM_NONE, ENTITYNUM_WORLD


// markfragments are returned by CM_MarkFragments()
typedef struct {
    int		firstPoint;
    int		numPoints;
}
markFragment_t;



typedef struct {
    vec3_t		origin;
    vec3_t		axis[3];
}
orientation_t;

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


// in order from highest priority to lowest
// if none of the catchers are active, bound key strings will be executed
#define KEYCATCH_CONSOLE		0x0001
#define	KEYCATCH_UI					0x0002
#define	KEYCATCH_MESSAGE		0x0004
#define	KEYCATCH_CGAME			0x0008


// sound channels
// channel 0 never willingly overrides
// other channels will allways override a playing sound on that channel
typedef enum {
    CHAN_AUTO,
    CHAN_LOCAL,		// menu sounds, etc
    CHAN_WEAPON,
    CHAN_VOICE,
    CHAN_ITEM,
    CHAN_BODY,
    CHAN_LOCAL_SOUND,	// chat messages, etc
    CHAN_ANNOUNCER		// announcer voices, etc
} soundChannel_t;


/*
========================================================================
 
  ELEMENTS COMMUNICATED ACROSS THE NET
 
========================================================================
*/

#define	ANGLE2SHORT(x)	((int)((x)*65536/360) & 65535)
#define	SHORT2ANGLE(x)	((x)*(360.0/65536))

#define	SNAPFLAG_RATE_DELAYED	1
#define	SNAPFLAG_NOT_ACTIVE		2	// snapshot used during connection and for zombies
#define SNAPFLAG_SERVERCOUNT	4	// toggled every map_restart so transitions can be detected

//
// per-level limits
//
#define	MAX_CLIENTS			64		// absolute limit
#define MAX_LOCATIONS		64

#define	GENTITYNUM_BITS		10		// don't need to send any more
#define	MAX_GENTITIES		(1<<GENTITYNUM_BITS)

// entitynums are communicated with GENTITY_BITS, so any reserved
// values thatare going to be communcated over the net need to
// also be in this range
#define	ENTITYNUM_NONE		(MAX_GENTITIES-1)
#define	ENTITYNUM_WORLD		(MAX_GENTITIES-2)
#define	ENTITYNUM_MAX_NORMAL	(MAX_GENTITIES-2)


#define	MAX_MODELS			256		// these are sent over the net as 8 bits
#define	MAX_SOUNDS			256		// so they cannot be blindly increased


#define	MAX_CONFIGSTRINGS	1024

// these are the only configstrings that the system reserves, all the
// other ones are strictly for servergame to clientgame communication
#define	CS_SERVERINFO		0		// an info string with all the serverinfo cvars
#define	CS_SYSTEMINFO		1		// an info string for server system to client system configuration (timescale, etc)

#define	RESERVED_CONFIGSTRINGS	2	// game can't modify below this, only the system can

#define	MAX_GAMESTATE_CHARS	16000
typedef struct {
    int			stringOffsets[MAX_CONFIGSTRINGS];
    char		stringData[MAX_GAMESTATE_CHARS];
    int			dataCount;
}
gameState_t;

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

// bit field limits
#define	MAX_STATS				16
#define	MAX_PERSISTANT			16
#define	MAX_POWERUPS			16
#define	MAX_WEAPONS				16

#define	MAX_PS_EVENTS			2

#define PS_PMOVEFRAMECOUNTBITS	6

// playerState_t is the information needed by both the client and server
// to predict player motion and actions
// nothing outside of pmove should modify these, or some degree of prediction error
// will occur

// you can't add anything to this without modifying the code in msg.c

// playerState_t is a full superset of entityState_t as it is used by players,
// so if a playerState_t is transmitted, the entityState_t can be fully derived
// from it.
typedef struct playerState_s {
    int			commandTime;	// cmd->serverTime of last executed command
    int			pm_type;
    int			bobCycle;		// for view bobbing and footstep generation
    int			pm_flags;		// ducked, jump_held, etc
    int			pm_time;

    vec3_t		origin;
    vec3_t		velocity;
    int			weaponTime;
    int			gravity;
    int			speed;
    int			delta_angles[3];	// add to command angles to get view direction
    // changed by spawns, rotating objects, and teleporters

    int			groundEntityNum;// ENTITYNUM_NONE = in air

    int			legsTimer;		// don't change low priority animations until this runs out
    int			legsAnim;		// mask off ANIM_TOGGLEBIT

    int			torsoTimer;		// don't change low priority animations until this runs out
    int			torsoAnim;		// mask off ANIM_TOGGLEBIT

    int			movementDir;	// a number 0 to 7 that represents the reletive angle
    // of movement to the view angle (axial and diagonals)
    // when at rest, the value will remain unchanged
    // used to twist the legs during strafing

    vec3_t		grapplePoint;	// location of grapple to pull towards if PMF_GRAPPLE_PULL

    int			eFlags;			// copied to entityState_t->eFlags

    int			eventSequence;	// pmove generated events
    int			events[MAX_PS_EVENTS];
    int			eventParms[MAX_PS_EVENTS];

    int			externalEvent;	// events set on player from another source
    int			externalEventParm;
    int			externalEventTime;

    int			clientNum;		// ranges from 0 to MAX_CLIENTS-1
    int			weapon;			// copied to entityState_t->weapon
    int			weaponstate;

    vec3_t		viewangles;		// for fixed views
    int			viewheight;

    // damage feedback
    int			damageEvent;	// when it changes, latch the other parms
    int			damageYaw;
    int			damagePitch;
    int			damageCount;

    int			stats[MAX_STATS];
    int			persistant[MAX_PERSISTANT];	// stats that aren't cleared on death
    int			powerups[MAX_POWERUPS];	// level.time that the powerup runs out
    int			ammo[MAX_WEAPONS];

    int			generic1;
    int			loopSound;
    int			jumppad_ent;	// jumppad entity hit this frame

    // not communicated over the net at all
    int			ping;			// server to game info for scoreboard
    int			pmove_framecount;	// FIXME: don't transmit over the network
    int			jumppad_frame;
    int			entityEventSequence;
}
playerState_t;


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


//
// usercmd_t->button bits, many of which are generated by the client system,
// so they aren't game/cgame only definitions
//
#define	BUTTON_ATTACK		1
#define	BUTTON_TALK			2			// displays talk balloon and disables actions
#define	BUTTON_USE_HOLDABLE	4
#define	BUTTON_GESTURE		8
#define	BUTTON_WALKING		16			// walking can't just be infered from MOVE_RUN
// because a key pressed late in the frame will
// only generate a small move value for that frame
// walking will use different animations and
// won't generate footsteps

//#ifdef MISSIONPACK
//#define BUTTON_AFFIRMATIVE	32
//#define	BUTTON_NEGATIVE		64
//#else
//BattleBots
#define	BUTTON_GRAPPLE		32
//#define BUTTON_GRAPPLE		64
//#endif

#define BUTTON_GETFLAG		128
#define BUTTON_GUARDBASE	256
#define BUTTON_PATROL		512
#define BUTTON_FOLLOWME		1024

#define	BUTTON_ANY			2048			// any key whatsoever

#define	MOVE_RUN			120			// if forwardmove or rightmove are >= MOVE_RUN,
// then BUTTON_WALKING should be set

// usercmd_t is sent to the server each client frame
typedef struct usercmd_s {
    int				serverTime;
    int				angles[3];
    int 			buttons;
    byte			weapon;           // weapon
    signed char	forwardmove, rightmove, upmove;
}
usercmd_t;

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

// if entityState->solid == SOLID_BMODEL, modelindex is an inline model number
#define	SOLID_BMODEL	0xffffff

typedef enum {
    TR_STATIONARY,
    TR_INTERPOLATE,				// non-parametric, but interpolate between snapshots
    TR_LINEAR,
    TR_LINEAR_STOP,
    TR_SINE,					// value = base + sin( time / duration ) * delta
    TR_GRAVITY
} trType_t;

typedef struct {
    trType_t	trType;
    int		trTime;
    int		trDuration;			// if non 0, trTime + trDuration = stop time
    vec3_t	trBase;
    vec3_t	trDelta;			// velocity, etc
}
trajectory_t;

// entityState_t is the information conveyed from the server
// in an update message about entities that the client will
// need to render in some way
// Different eTypes may use the information in different ways
// The messages are delta compressed, so it doesn't really matter if
// the structure size is fairly large

typedef struct entityState_s {
    int		number;			// entity index
    int		eType;			// entityType_t
    int		eFlags;

    trajectory_t	pos;	// for calculating position
    trajectory_t	apos;	// for calculating angles

    int		time;
    int		time2;

    vec3_t	origin;
    vec3_t	origin2;

    vec3_t	angles;
    vec3_t	angles2;

    int		otherEntityNum;	// shotgun sources, etc
    int		otherEntityNum2;

    int		groundEntityNum;	// -1 = in air

    int		constantLight;	// r + (g<<8) + (b<<16) + (intensity<<24)
    int		loopSound;		// constantly loop this sound

    int		modelindex;
    int		modelindex2;
    int		clientNum;		// 0 to (MAX_CLIENTS - 1), for players and corpses
    int		frame;

    int		solid;			// for client side prediction, trap_linkentity sets this properly

    int		event;			// impulse events -- muzzle flashes, footsteps, etc
    int		eventParm;

    // for players
    int		powerups;		// bit flags
    int		weapon;			// determines weapon and flash model, etc
    int		legsAnim;		// mask off ANIM_TOGGLEBIT
    int		torsoAnim;		// mask off ANIM_TOGGLEBIT

    int		generic1;
}
entityState_t;

typedef enum {
    CA_UNINITIALIZED,
    CA_DISCONNECTED, 	// not talking to a server
    CA_AUTHORIZING,		// not used any more, was checking cd key
    CA_CONNECTING,		// sending request packets to the server
    CA_CHALLENGING,		// sending challenge packets to the server
    CA_CONNECTED,		// netchan_t established, getting gamestate
    CA_LOADING,			// only during cgame initialization, never during main loop
    CA_PRIMED,			// got gamestate, waiting for first frame
    CA_ACTIVE,			// game views should be displayed
    CA_CINEMATIC		// playing a cinematic or a static pic, not connected to a server
} connstate_t;

// font support

#define GLYPH_START 0
#define GLYPH_END 255
#define GLYPH_CHARSTART 32
#define GLYPH_CHAREND 127
#define GLYPHS_PER_FONT GLYPH_END - GLYPH_START + 1
typedef struct {
    int height;       // number of scan lines
    int top;          // top of glyph in buffer
    int bottom;       // bottom of glyph in buffer
    int pitch;        // width for copying
    int xSkip;        // x adjustment
    int imageWidth;   // width of actual image
    int imageHeight;  // height of actual image
    float s;          // x offset in image where glyph starts
    float t;          // y offset in image where glyph starts
    float s2;
    float t2;
    qhandle_t glyph;  // handle to the shader with the glyph
    char shaderName[32];
}
glyphInfo_t;

typedef struct {
    glyphInfo_t glyphs [GLYPHS_PER_FONT];
    float glyphScale;
    char name[MAX_QPATH];
}
fontInfo_t;

#define Square(x) ((x)*(x))

// real time
//=============================================


typedef struct qtime_s {
    int tm_sec;     /* seconds after the minute - [0,59] */
    int tm_min;     /* minutes after the hour - [0,59] */
    int tm_hour;    /* hours since midnight - [0,23] */
    int tm_mday;    /* day of the month - [1,31] */
    int tm_mon;     /* months since January - [0,11] */
    int tm_year;    /* years since 1900 */
    int tm_wday;    /* days since Sunday - [0,6] */
    int tm_yday;    /* days since January 1 - [0,365] */
    int tm_isdst;   /* daylight savings time flag */
}
qtime_t;


// server browser sources
// TTimo: AS_MPLAYER is no longer used
#define AS_LOCAL			0
#define AS_MPLAYER		1
#define AS_GLOBAL			2
#define AS_FAVORITES	3


// cinematic states
typedef enum {
    FMV_IDLE,
    FMV_PLAY,		// play
    FMV_EOF,		// all other conditions, i.e. stop/EOF/abort
    FMV_ID_BLT,
    FMV_ID_IDLE,
    FMV_LOOPED,
    FMV_ID_WAIT
} e_status;

typedef enum _flag_status {
    FLAG_ATBASE = 0,
    FLAG_TAKEN,			// CTF
    FLAG_TAKEN_RED,		// One Flag CTF
    FLAG_TAKEN_BLUE,	// One Flag CTF
    FLAG_DROPPED,
    //NT - return-the-flag CTF
    FLAG_RETURNING
} flagStatus_t;



#define	MAX_GLOBAL_SERVERS				4096
#define	MAX_OTHER_SERVERS			128
#define MAX_PINGREQUESTS			32
#define MAX_SERVERSTATUSREQUESTS	16

#define SAY_ALL		0
#define SAY_TEAM	1
#define SAY_TELL	2

#define CDKEY_LEN 16
#define CDCHKSUM_LEN 2


#endif	// __Q_SHARED_H
