ngunix/engine/pr_edict.c

/*
Copyright (C) 2015 Marco "eukara" Hladik
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.

*/
// sv_edict.c -- entity dictionary

#include "globaldef.h"

dprograms_t		*progs;
dfunction_t		*pr_functions;
char			*pr_strings;
ddef_t			*pr_fielddefs;
ddef_t			*pr_globaldefs;
dstatement_t	*pr_statements;
globalvars_t	*pr_global_struct;
float			*pr_globals;			// same as pr_global_struct
int				pr_edict_size;	// in bytes

unsigned short		pr_crc;

int		type_size[8] = {1,sizeof(string_t)/4,1,3,1,1,sizeof(func_t)/4,sizeof(void *)/4};

ddef_t *ED_FieldAtOfs (int ofs);
qboolean	ED_ParseEpair (void *base, ddef_t *key, char *s);

cvar_t	*nomonsters;
cvar_t	*gamecfg;
cvar_t	*scratch1;
cvar_t	*scratch2;
cvar_t	*scratch3;
cvar_t	*scratch4;
cvar_t	*savedgamecfg;
cvar_t	*saved1;
cvar_t	*saved2;
cvar_t	*saved3;
cvar_t	*saved4;

// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes  start
cvar_t	*pr_builtin_find;
cvar_t	*pr_builtin_remap;
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes  end

cvar_t	*pr_checkextension;	// 2001-10-20 Extension System by LordHavoc/Maddes (DP compatibility)

cvar_t	*pr_zone_min_strings;	// 2001-09-20 QuakeC string zone by Maddes

#define	MAX_FIELD_LEN	64
#define GEFV_CACHESIZE	2

typedef struct {
	ddef_t	*pcache;
	char	field[MAX_FIELD_LEN];
} gefv_cache;

static gefv_cache	gefvCache[GEFV_CACHESIZE] = {{NULL, ""}, {NULL, ""}};

func_t	pr_func_endframe;	// 2000-01-02 EndFrame function by Maddes/FrikaC

// 2001-10-20 TIMESCALE extension by Tomaz/Maddes  start
ddef_t	*pr_global_cpu_frametime;
ddef_t	*pr_global_org_frametime;
// 2001-10-20 TIMESCALE extension by Tomaz/Maddes  end

// 2001-11-15 Better GetEdictFieldValue performance by LordHavoc/Maddes  start
ddef_t	*pr_field_ammo_shells1;
ddef_t	*pr_field_ammo_nails1;
ddef_t	*pr_field_ammo_lava_nails;
ddef_t	*pr_field_ammo_rockets1;
ddef_t	*pr_field_ammo_multi_rockets;
ddef_t	*pr_field_ammo_cells1;
ddef_t	*pr_field_ammo_plasma;
ddef_t	*pr_field_idealpitch;
ddef_t	*pr_field_pitch_speed;
ddef_t	*pr_field_items2;
ddef_t	*pr_field_gravity;
ddef_t	*pr_field_alpha;
// 2001-11-15 Better GetEdictFieldValue performance by LordHavoc/Maddes  end
ddef_t	*pr_field_renderamt;
ddef_t	*pr_field_scale;
ddef_t	*pr_field_glowcolor;
ddef_t	*pr_field_glowsize;
// leilei

// 2001-10-20 Extension System by LordHavoc/Maddes  start
void PR_Extension_List_f (void)
{
	int		i;
	char	*partial;
	int		len;
	int		count;

	if (Cmd_Argc() > 1)
	{
		partial = Cmd_Argv (1);
		len = strlen(partial);
	}
	else
	{
		partial = NULL;
		len = 0;
	}

	count=0;
	for (i=0; i < pr_numextensions; i++)
	{
		if (partial && Q_strncasecmp (partial, pr_extensions[i], len))
		{
			continue;
		}
		count++;
		Con_Printf ("%s\n", pr_extensions[i]);
	}

	Con_Printf ("------------\n");
	if (partial)
	{
		Con_Printf ("%i beginning with \"%s\" out of ", count, partial);
	}
	Con_Printf ("%i extensions\n", i);
}
// 2001-10-20 Extension System by LordHavoc/Maddes  end

/*
=================
ED_ClearEdict

Sets everything to NULL
=================
*/
void ED_ClearEdict (edict_t *e)
{
	memset (&e->v, 0, progs->entityfields * 4);
	e->free = false;
}

/*
=================
ED_Alloc

Either finds a free edict, or allocates a new one.
Try to avoid reusing an entity that was recently freed, because it
can cause the client to think the entity morphed into something else
instead of being removed and recreated, which can cause interpolated
angles and bad trails.
=================
*/
edict_t *ED_Alloc (void)
{
	int			i;
	edict_t		*e;

	for ( i=svs.maxclients+1 ; i<sv.num_edicts ; i++)
	{
		e = EDICT_NUM(i);
		// the first couple seconds of server time can involve a lot of
		// freeing and allocating, so relax the replacement policy
		if (e->free && ( e->freetime < 2 || sv.time - e->freetime > 0.5 ) )
		{
			ED_ClearEdict (e);
			return e;
		}
	}

// 2001-09-20 Configurable entity limits by Maddes  start
//	if (i == MAX_EDICTS)
	if (i >= sv.max_edicts)
// 2001-09-20 Configurable entity limits by Maddes  end
		Sys_Error ("ED_Alloc: no free edicts");

	sv.num_edicts++;
	e = EDICT_NUM(i);
	ED_ClearEdict (e);

	return e;
}

/*
=================
ED_Free

Marks the edict as free
FIXME: walk all entities and NULL out references to this entity
=================
*/
void ED_Free (edict_t *ed)
{

	SV_UnlinkEdict (ed);		// unlink from world bsp

	ed->free = true;
	ed->v.model = 0;
	ed->v.takedamage = 0;
	ed->v.modelindex = 0;
	ed->v.colormap = 0;
	ed->v.skin = 0;
	ed->v.frame = 0;
	VectorCopy (vec3_origin, ed->v.origin);
	VectorCopy (vec3_origin, ed->v.angles);
	ed->v.nextthink = -1;
	ed->v.solid = 0;
	ed->freetime = sv.time;
}

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

/*
============
ED_GlobalAtOfs
============
*/
ddef_t *ED_GlobalAtOfs (int ofs)
{
	ddef_t		*def;
	int			i;

	for (i=0 ; i<progs->numglobaldefs ; i++)
	{
		def = &pr_globaldefs[i];
		if (def->ofs == ofs)
			return def;
	}
	return NULL;
}

/*
============
ED_FieldAtOfs
============
*/
ddef_t *ED_FieldAtOfs (int ofs)
{
	ddef_t		*def;
	int			i;

	for (i=0 ; i<progs->numfielddefs ; i++)
	{
		def = &pr_fielddefs[i];
		if (def->ofs == ofs)
			return def;
	}
	return NULL;
}

/*
============
ED_FindField
============
*/
ddef_t *ED_FindField (char *name)
{
	ddef_t		*def;
	int			i;

	for (i=0 ; i<progs->numfielddefs ; i++)
	{
		def = &pr_fielddefs[i];
		if (!strcmp(pr_strings + def->s_name,name) )
			return def;
	}
	return NULL;
}


/*
============
ED_FindGlobal
============
*/
ddef_t *ED_FindGlobal (char *name)
{
	ddef_t		*def;
	int			i;

	for (i=0 ; i<progs->numglobaldefs ; i++)
	{
		def = &pr_globaldefs[i];
		if (!strcmp(pr_strings + def->s_name,name) )
			return def;
	}
	return NULL;
}


/*
============
ED_FindFunction
============
*/
dfunction_t *ED_FindFunction (char *name)
{
	dfunction_t		*func;
	int				i;

	for (i=0 ; i<progs->numfunctions ; i++)
	{
		func = &pr_functions[i];
		if (!strcmp(pr_strings + func->s_name,name) )
			return func;
	}
	return NULL;
}


eval_t *GetEdictFieldValue(edict_t *ed, char *field)
{
	ddef_t			*def = NULL;
	int				i;
	static int		rep = 0;

	for (i=0 ; i<GEFV_CACHESIZE ; i++)
	{
		if (!strcmp(field, gefvCache[i].field))
		{
			def = gefvCache[i].pcache;
			goto Done;
		}
	}

	def = ED_FindField (field);

	if (strlen(field) < MAX_FIELD_LEN)
	{
		gefvCache[rep].pcache = def;
		strcpy (gefvCache[rep].field, field);
		rep ^= 1;
	}

Done:
	if (!def)
		return NULL;

	return (eval_t *)((char *)&ed->v + def->ofs*4);
}


/*
============
PR_ValueString

Returns a string describing *data in a type specific manner
=============
*/
char *PR_ValueString (etype_t type, eval_t *val)
{
	static char	line[256];
	ddef_t		*def;
	dfunction_t	*f;

	type &= ~DEF_SAVEGLOBAL;

	switch (type)
	{
	case ev_string:
		sprintf (line, "%s", pr_strings + val->string);
		break;
	case ev_entity:
		sprintf (line, "entity %i", NUM_FOR_EDICT(PROG_TO_EDICT(val->edict)) );
		break;
	case ev_function:
		f = pr_functions + val->function;
		sprintf (line, "%s()", pr_strings + f->s_name);
		break;
	case ev_field:
		def = ED_FieldAtOfs ( val->_int );
		sprintf (line, ".%s", pr_strings + def->s_name);
		break;
	case ev_void:
		sprintf (line, "void");
		break;
	case ev_float:
		sprintf (line, "%5.1f", val->_float);
		break;
	case ev_vector:
		sprintf (line, "'%5.1f %5.1f %5.1f'", val->vector[0], val->vector[1], val->vector[2]);
		break;
	case ev_pointer:
		sprintf (line, "pointer");
		break;
	default:
		sprintf (line, "bad type %i", type);
		break;
	}

	return line;
}

/*
============
PR_UglyValueString

Returns a string describing *data in a type specific manner
Easier to parse than PR_ValueString
=============
*/
char *PR_UglyValueString (etype_t type, eval_t *val)
{
	static char	line[256];
	ddef_t		*def;
	dfunction_t	*f;

	type &= ~DEF_SAVEGLOBAL;

	switch (type)
	{
	case ev_string:
		sprintf (line, "%s", pr_strings + val->string);
		break;
	case ev_entity:
		sprintf (line, "%i", NUM_FOR_EDICT(PROG_TO_EDICT(val->edict)));
		break;
	case ev_function:
		f = pr_functions + val->function;
		sprintf (line, "%s", pr_strings + f->s_name);
		break;
	case ev_field:
		def = ED_FieldAtOfs ( val->_int );
		sprintf (line, "%s", pr_strings + def->s_name);
		break;
	case ev_void:
		sprintf (line, "void");
		break;
	case ev_float:
		sprintf (line, "%f", val->_float);
		break;
	case ev_vector:
		sprintf (line, "%f %f %f", val->vector[0], val->vector[1], val->vector[2]);
		break;
	default:
		sprintf (line, "bad type %i", type);
		break;
	}

	return line;
}

/*
============
PR_GlobalString

Returns a string with a description and the contents of a global,
padded to 20 field width
============
*/
char *PR_GlobalString (int ofs)
{
	char	*s;
	int		i;
	ddef_t	*def;
	void	*val;
	static char	line[128];

	val = (void *)&pr_globals[ofs];
	def = ED_GlobalAtOfs(ofs);
	if (!def)
		sprintf (line,"%i(???)", ofs);
	else
	{
		s = PR_ValueString (def->type, val);
		sprintf (line,"%i(%s)%s", ofs, pr_strings + def->s_name, s);
	}

	i = strlen(line);
	for ( ; i<20 ; i++)
		strcat (line," ");
	strcat (line," ");

	return line;
}

char *PR_GlobalStringNoContents (int ofs)
{
	int		i;
	ddef_t	*def;
	static char	line[128];

	def = ED_GlobalAtOfs(ofs);
	if (!def)
		sprintf (line,"%i(???)", ofs);
	else
		sprintf (line,"%i(%s)", ofs, pr_strings + def->s_name);

	i = strlen(line);
	for ( ; i<20 ; i++)
		strcat (line," ");
	strcat (line," ");

	return line;
}


/*
=============
ED_Print

For debugging
=============
*/
void ED_Print (edict_t *ed)
{
	int		l;
	ddef_t	*d;
	int		*v;
	int		i, j;
	char	*name;
	int		type;

	if (ed->free)
	{
		Con_Printf ("FREE\n");
		return;
	}

	Con_Printf("\nEDICT %i:\n", NUM_FOR_EDICT(ed));
	for (i=1 ; i<progs->numfielddefs ; i++)
	{
		d = &pr_fielddefs[i];
		name = pr_strings + d->s_name;
		if (name[strlen(name)-2] == '_')
			continue;	// skip _x, _y, _z vars

		v = (int *)((char *)&ed->v + d->ofs*4);

	// if the value is still all 0, skip the field
		type = d->type & ~DEF_SAVEGLOBAL;

		for (j=0 ; j<type_size[type] ; j++)
			if (v[j])
				break;
		if (j == type_size[type])
			continue;

		Con_Printf ("%s",name);
		l = strlen (name);
		while (l++ < 15)
			Con_Printf (" ");

		Con_Printf ("%s\n", PR_ValueString(d->type, (eval_t *)v));
	}
}

/*
=============
ED_Write

For savegames
=============
*/
void ED_Write (FILE *f, edict_t *ed)
{
	ddef_t	*d;
	int		*v;
	int		i, j;
	char	*name;
	int		type;

	fprintf (f, "{\n");

	if (ed->free)
	{
		fprintf (f, "}\n");
		return;
	}

	for (i=1 ; i<progs->numfielddefs ; i++)
	{
		d = &pr_fielddefs[i];
		name = pr_strings + d->s_name;
		if (name[strlen(name)-2] == '_')
			continue;	// skip _x, _y, _z vars

		v = (int *)((char *)&ed->v + d->ofs*4);

	// if the value is still all 0, skip the field
		type = d->type & ~DEF_SAVEGLOBAL;
		for (j=0 ; j<type_size[type] ; j++)
			if (v[j])
				break;
		if (j == type_size[type])
			continue;

		fprintf (f,"\"%s\" ",name);
		fprintf (f,"\"%s\"\n", PR_UglyValueString(d->type, (eval_t *)v));
	}

	fprintf (f, "}\n");
}

void ED_PrintNum (int ent)
{
	ED_Print (EDICT_NUM(ent));
}

/*
=============
ED_PrintEdicts

For debugging, prints all the entities in the current server
=============
*/
void ED_PrintEdicts (void)
{
	int		i;

	Con_Printf ("%i entities\n", sv.num_edicts);
	for (i=0 ; i<sv.num_edicts ; i++)
		ED_PrintNum (i);
}

/*
=============
ED_PrintEdict_f

For debugging, prints a single edict
=============
*/
void ED_PrintEdict_f (void)
{
	int		i;

	i = Q_atoi (Cmd_Argv(1));
	if (i >= sv.num_edicts)
	{
		Con_Printf("Bad edict number\n");
		return;
	}
	ED_PrintNum (i);
}

/*
=============
ED_Count

For debugging
=============
*/
void ED_Count (void)
{
	int		i;
	edict_t	*ent;
	int		active, models, solid, step;

	active = models = solid = step = 0;
	for (i=0 ; i<sv.num_edicts ; i++)
	{
		ent = EDICT_NUM(i);
		if (ent->free)
			continue;
		active++;
		if (ent->v.solid)
			solid++;
		if (ent->v.model)
			models++;
		if (ent->v.movetype == MOVETYPE_STEP)
			step++;
	}

	Con_Printf ("num_edicts:%3i\n", sv.num_edicts);
	Con_Printf ("active    :%3i\n", active);
	Con_Printf ("view      :%3i\n", models);
	Con_Printf ("touch     :%3i\n", solid);
	Con_Printf ("step      :%3i\n", step);

}

/*
==============================================================================

					ARCHIVING GLOBALS

FIXME: need to tag constants, doesn't really work
==============================================================================
*/

/*
=============
ED_WriteGlobals
=============
*/
void ED_WriteGlobals (FILE *f)
{
	ddef_t		*def;
	int			i;
	char		*name;
	int			type;

	fprintf (f,"{\n");
	for (i=0 ; i<progs->numglobaldefs ; i++)
	{
		def = &pr_globaldefs[i];
		type = def->type;
		if ( !(def->type & DEF_SAVEGLOBAL) )
			continue;
		type &= ~DEF_SAVEGLOBAL;

		if (type != ev_string
		&& type != ev_float
		&& type != ev_entity)
			continue;

		name = pr_strings + def->s_name;
		fprintf (f,"\"%s\" ", name);
		fprintf (f,"\"%s\"\n", PR_UglyValueString(type, (eval_t *)&pr_globals[def->ofs]));
	}
	fprintf (f,"}\n");
}

/*
=============
ED_ParseGlobals
=============
*/
void ED_ParseGlobals (char *data)
{
	char	keyname[64];
	ddef_t	*key;

	while (1)
	{
	// parse key
		data = COM_Parse (data);
		if (com_token[0] == '}')
			break;
		if (!data)
			Sys_Error ("ED_ParseEntity: EOF without closing brace");

		strcpy (keyname, com_token);

	// parse value
		data = COM_Parse (data);
		if (!data)
			Sys_Error ("ED_ParseEntity: EOF without closing brace");

		if (com_token[0] == '}')
			Sys_Error ("ED_ParseEntity: closing brace without data");

		key = ED_FindGlobal (keyname);
		if (!key)
		{
			Con_Printf ("'%s' is not a global\n", keyname);
			continue;
		}

		if (!ED_ParseEpair ((void *)pr_globals, key, com_token))
			Host_Error ("ED_ParseGlobals: parse error");
	}
}

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


/*
=============
ED_NewString
=============
*/
char *ED_NewString (char *string)
{
	char	*new, *new_p;
	int		i,l;

	l = strlen(string) + 1;
	new = Hunk_Alloc (l);
	new_p = new;

	for (i=0 ; i< l ; i++)
	{
		if (string[i] == '\\' && i < l-1)
		{
			i++;
			if (string[i] == 'n')
				*new_p++ = '\n';
			else
				*new_p++ = '\\';
		}
		else
			*new_p++ = string[i];
	}

	return new;
}


/*
=============
ED_ParseEval

Can parse either fields or globals
returns false if error
=============
*/
qboolean	ED_ParseEpair (void *base, ddef_t *key, char *s)
{
	int		i;
	char	string[128];
	ddef_t	*def;
	char	*v, *w;
	void	*d;
	dfunction_t	*func;

	d = (void *)((int *)base + key->ofs);

	switch (key->type & ~DEF_SAVEGLOBAL)
	{
	case ev_string:
		*(string_t *)d = ED_NewString (s) - pr_strings;
		break;

	case ev_float:
		*(float *)d = atof (s);
		break;

	case ev_vector:
		strcpy (string, s);
		v = string;
		w = string;
		for (i=0 ; i<3 ; i++)
		{
			while (*v && *v != ' ')
				v++;
			*v = 0;
			((float *)d)[i] = atof (w);
			w = v = v+1;
		}
		break;

	case ev_entity:
		*(int *)d = EDICT_TO_PROG(EDICT_NUM(atoi (s)));
		break;

	case ev_field:
		def = ED_FindField (s);
		if (!def)
		{
			Con_Printf ("Can't find field %s\n", s);
			return false;
		}
		*(int *)d = G_INT(def->ofs);
		break;

	case ev_function:
		func = ED_FindFunction (s);
		if (!func)
		{
			Con_Printf ("Can't find function %s\n", s);
			return false;
		}
		*(func_t *)d = func - pr_functions;
		break;

	default:
		break;
	}
	return true;
}

/*
====================
ED_ParseEdict

Parses an edict out of the given string, returning the new position
ed should be a properly initialized empty edict.
Used for initial level load and for savegames.
====================
*/
char *ED_ParseEdict (char *data, edict_t *ent)
{
	ddef_t		*key;
	qboolean	anglehack;
	qboolean	init;
	char		keyname[256];
	int			n;
	vec3_t		col;
	init = false;

// clear it
	if (ent != sv.edicts)	// hack
		memset (&ent->v, 0, progs->entityfields * 4);

// go through all the dictionary pairs
	while (1)
	{
	// parse key
		data = COM_Parse (data);
		if (com_token[0] == '}')
			break;
		if (!data)
			Sys_Error ("ED_ParseEntity: EOF without closing brace");


		
// anglehack is to allow QuakeEd to write single scalar angles
// and allow them to be turned into vectors. (FIXME...)
if (!strcmp(com_token, "angle"))
{
	strcpy (com_token, "angles");
	anglehack = true;
}
else
	anglehack = false;

// FIXME: change light to _light to get rid of this hack
if (!strcmp(com_token, "light"))
	strcpy (com_token, "light_lev");	// hack for single light def
		
		strcpy (keyname, com_token);
		
		// another hack to fix heynames with trailing spaces
		n = strlen(keyname);
		while (n && keyname[n-1] == ' ')
		{
			keyname[n-1] = 0;
			n--;
		}

	// parse value
		data = COM_Parse (data);
		if (!data)
			Sys_Error ("ED_ParseEntity: EOF without closing brace");

		if (com_token[0] == '}')
			Sys_Error ("ED_ParseEntity: closing brace without data");

		init = true;
	

		
// keynames with a leading underscore are used for utility comments,
// and are immediately discarded by quake
		if (keyname[0] == '_')
			continue;

		key = ED_FindField (keyname);
		if (!key)
		{
			//johnfitz -- HACK -- suppress error becuase fog/sky/alpha fields might not be mentioned in defs.qc
			if (strncmp(keyname, "sky", 3) && strcmp(keyname, "fog") && strcmp(keyname, "alpha"))
				Con_DPrintf ("\"%s\" is not a field\n", keyname); //johnfitz -- was Con_Printf
			//Con_Printf ("'%s' is not a field\n", keyname);
			
			continue;
		}
		

if (anglehack)
{
char	temp[32];
strcpy (temp, com_token);
sprintf (com_token, "0 %s 0", temp);
}

		if (!ED_ParseEpair ((void *)&ent->v, key, com_token))
			Host_Error ("ED_ParseEdict: parse error");

	//	if (!strncmp(keyname, "light_lev", 5)){
//				Con_Printf ("\"%s\" your face is a field\n", keyname); //johnfitz -- was Con_Printf

//				R_FlareTest(ent->v.origin, 21, 11, 11, 11, 0, NULL);
	//	}
	}

	if (!init)
		ent->free = true;


	return data;
}


/*
================

  // leilei - allocate a wlight.
		//if (data)
		{
			
			dlight_t *dl;
			//Con_Printf("light at %f %f %f", ent->v.origin[0],ent->v.origin[1],ent->v.origin[2]);
			dl = CL_AllocDlight (66);
			dl->color[0] = 4.0f;
			dl->color[1] = 2.0f;
			dl->color[2] = 0.5f;	// TODO: get avg color from model
		
					
		VectorCopy (ent->v.origin, dl->origin);
		dl->radius = 750;
		dl->die = cl.time + 60.5;
		dl->decay = 300;
		

ED_LoadFromFile

The entities are directly placed in the array, rather than allocated with
ED_Alloc, because otherwise an error loading the map would have entity
number references out of order.

Creates a server's entity / program execution context by
parsing textual entity definitions out of an ent file.

Used for both fresh maps and savegame loads.  A fresh map would also need
to call ED_CallSpawnFunctions () to let the objects initialize themselves.
================
*/
#ifdef GLOBOT
void BotInit (void);
#endif

void ED_LoadFromFile (char *data)
{
	edict_t		*ent;
	int			inhibit;
	dfunction_t	*func;

	ent = NULL;
	inhibit = 0;
	pr_global_struct->time = sv.time;

// parse ents
	while (1)
	{
// parse the opening brace
		data = COM_Parse (data);
		if (!data)
			break;
		if (com_token[0] != '{')
			Sys_Error ("ED_LoadFromFile: found %s when expecting {",com_token);

		if (!ent)
			ent = EDICT_NUM(0);
		else
			ent = ED_Alloc ();
		data = ED_ParseEdict (data, ent);

// remove things from different skill levels or deathmatch
		if (deathmatch->value)
		{
			if (((int)ent->v.spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
			{
				ED_Free (ent);
				inhibit++;
				continue;
			}
		}
		else if ((current_skill == 0 && ((int)ent->v.spawnflags & SPAWNFLAG_NOT_EASY))
				|| (current_skill == 1 && ((int)ent->v.spawnflags & SPAWNFLAG_NOT_MEDIUM))
				|| (current_skill >= 2 && ((int)ent->v.spawnflags & SPAWNFLAG_NOT_HARD)) )
		{
			ED_Free (ent);
			inhibit++;
			continue;
		}



//
// immediately call spawn function
//
		if (!ent->v.classname)
		{
			Con_Printf ("No classname for:\n");
			ED_Print (ent);
			ED_Free (ent);
			continue;
		}

	// look for the spawn function
		func = ED_FindFunction ( pr_strings + ent->v.classname );

		if (!func)
		{
			if (developer->value > 55){
			Con_Printf ("No spawn function for:\n");
			ED_Print (ent);		// leilei - suppress these messages...
			}
			ED_Free (ent);
			continue;
		}

		pr_global_struct->self = EDICT_TO_PROG(ent);
#ifdef GLOBOT
		if (!strcmp(pr_strings + ent->v.classname, "worldspawn"))
		BotInit ();
#endif
		PR_ExecuteProgram (func - pr_functions);
	}

	Con_DPrintf ("%i entities inhibited\n", inhibit);
}

qboolean	keep_compatibility;	// 1999-10-28 Compatibilty check by Maddes

/*
===============
PR_LoadProgs
===============
*/
void PR_LoadProgs (void)
{
	int		i;
	dfunction_t	*f;	// 2000-01-02 EndFrame function by Maddes/FrikaC
	loadedfile_t	*fileinfo;	// 2001-09-12 Returning information about loaded file by Maddes
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes/Firestorm  start
	int 	j;
	int		funcno;
	char	*funcname;
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes/Firestorm  end
	etype_t	type;	// 2001-10-20 TIMESCALE extension by Tomaz/Maddes

// flush the non-C variable lookup cache
	for (i=0 ; i<GEFV_CACHESIZE ; i++)
		gefvCache[i].field[0] = 0;

	CRC_Init (&pr_crc);

// 2001-09-12 Returning information about loaded file by Maddes  start
/*
	progs = (dprograms_t *)COM_LoadHunkFile ("progs.dat");
	if (!progs)
*/
	fileinfo = COM_LoadHunkFile ("progs.dat");
	if (!fileinfo)
// 2001-09-12 Returning information about loaded file by Maddes  end
		Sys_Error ("PR_LoadProgs: couldn't load progs.dat");
	progs = (dprograms_t *)fileinfo->data;	// 2001-09-12 Returning information about loaded file by Maddes
	Con_DPrintf ("Programs occupy %iK.\n", com_filesize/1024);

	for (i=0 ; i<com_filesize ; i++)
		CRC_ProcessByte (&pr_crc, ((byte *)progs)[i]);

// byte swap the header
	for (i=0 ; i<sizeof(*progs)/4 ; i++)
		((int *)progs)[i] = LittleLong ( ((int *)progs)[i] );

	if (progs->version != PROG_VERSION)
		Sys_Error ("progs.dat has wrong version number (%i should be %i)", progs->version, PROG_VERSION);
// 1999-10-28 Compatibilty check by Maddes  start
//	if (progs->crc != PROGHEADER_CRC)
	if (progs->crc == PROGHEADER101_CRC)
	{
		keep_compatibility = true;
		Con_DPrintf ("Old progs.dat found, compatibility turned on.\n");
	}
	else if (progs->crc == PROGHEADER_CRC)
//		|| (progs->crc == PROGHEADER107_CRC)
	{
		keep_compatibility = false;
		Con_DPrintf ("Enhanced progs.dat found, CRC is %i.\n", progs->crc);
	}
	else
// 1999-10-28 Compatibilty check by Maddes  end
		Sys_Error ("progs.dat CRC is %i and no sir i don't like it.\n\nprogs.dat system vars have been modified, progdefs.h is out of date", progs->crc);
		//Sys_Error ("progs.dat system vars have been modified, progdefs.h is out of date");

	pr_functions = (dfunction_t *)((byte *)progs + progs->ofs_functions);
	pr_strings = (char *)progs + progs->ofs_strings;
	pr_globaldefs = (ddef_t *)((byte *)progs + progs->ofs_globaldefs);
	pr_fielddefs = (ddef_t *)((byte *)progs + progs->ofs_fielddefs);
	pr_statements = (dstatement_t *)((byte *)progs + progs->ofs_statements);
//if (qbeta)
//	pr_global_struct = pr_global_struct = (globalvarsbeta_t *)((byte *)progs + progs->ofs_globals);
//else
	pr_global_struct = (globalvars_t *)((byte *)progs + progs->ofs_globals);
	pr_globals = (float *)pr_global_struct;

	pr_edict_size = progs->entityfields * 4 + sizeof (edict_t) - sizeof(entvars_t);

// byte swap the lumps
	for (i=0 ; i<progs->numstatements ; i++)
	{
		pr_statements[i].op = LittleShort(pr_statements[i].op);
		pr_statements[i].a = LittleShort(pr_statements[i].a);
		pr_statements[i].b = LittleShort(pr_statements[i].b);
		pr_statements[i].c = LittleShort(pr_statements[i].c);
	}

// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes/Firestorm  start
	// initialize function numbers for PROGS.DAT
	pr_numbuiltins = 0;
	pr_builtins = NULL;
	if (pr_builtin_remap->value)
	{
		// remove all previous assigned function numbers
		for ( j=1 ; j < pr_ebfs_numbuiltins; j++)
		{
			pr_ebfs_builtins[j].funcno = 0;
		}
	}
	else
	{
		// use default function numbers
		for ( j=1 ; j < pr_ebfs_numbuiltins; j++)
		{
			pr_ebfs_builtins[j].funcno = pr_ebfs_builtins[j].default_funcno;
			// determine highest builtin number (when NOT remapped)
			if (pr_ebfs_builtins[j].funcno > pr_numbuiltins)
			{
				pr_numbuiltins = pr_ebfs_builtins[j].funcno;
			}
		}
	}
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes/Firestorm  end

	for (i=0 ; i<progs->numfunctions; i++)
	{
	pr_functions[i].first_statement = LittleLong (pr_functions[i].first_statement);
	pr_functions[i].parm_start = LittleLong (pr_functions[i].parm_start);
	pr_functions[i].s_name = LittleLong (pr_functions[i].s_name);
	pr_functions[i].s_file = LittleLong (pr_functions[i].s_file);
	pr_functions[i].numparms = LittleLong (pr_functions[i].numparms);
	pr_functions[i].locals = LittleLong (pr_functions[i].locals);
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes/Firestorm  start
		if (pr_builtin_remap->value)
		{
			if (pr_functions[i].first_statement < 0)	// builtin function
			{
				funcno = -pr_functions[i].first_statement;
				funcname = pr_strings + pr_functions[i].s_name;

				// search function name
				for ( j=1 ; j < pr_ebfs_numbuiltins ; j++)
				{
					if (!(Q_strcasecmp(funcname, pr_ebfs_builtins[j].funcname)))
					{
						break;	// found
					}
				}

				if (j < pr_ebfs_numbuiltins)	// found
				{
					pr_ebfs_builtins[j].funcno = funcno;
				}
				else
				{
					Con_DPrintf("Can not assign builtin number #%i to %s - function unknown\n", funcno, funcname);
				}
			}
		}
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes/Firestorm  end
	}
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes/Firestorm  start
	if (pr_builtin_remap->value)
	{
		// check for unassigned functions and try to assign their default function number
		for ( i=1 ; i < pr_ebfs_numbuiltins; i++)
		{
			if ((!pr_ebfs_builtins[i].funcno) && (pr_ebfs_builtins[i].default_funcno))	// unassigned and has a default number
			{
				// check if default number is already assigned to another function
				for ( j=1 ; j < pr_ebfs_numbuiltins; j++)
				{
					if (pr_ebfs_builtins[j].funcno == pr_ebfs_builtins[i].default_funcno)
					{
						break;	// number already assigned to another builtin function
					}
				}

				if (j < pr_ebfs_numbuiltins)	// already assigned
				{
					Con_DPrintf("Can not assign default builtin number #%i to %s - number is already assigned to %s\n", pr_ebfs_builtins[i].default_funcno, pr_ebfs_builtins[i].funcname, pr_ebfs_builtins[j].funcname);
				}
				else
				{
					pr_ebfs_builtins[i].funcno = pr_ebfs_builtins[i].default_funcno;
				}
			}
			// determine highest builtin number (when remapped)
			if (pr_ebfs_builtins[i].funcno > pr_numbuiltins)
			{
				pr_numbuiltins = pr_ebfs_builtins[i].funcno;
			}
		}
	}
	pr_numbuiltins++;

	// allocate and initialize builtin list for execution time
	pr_builtins = Hunk_AllocName (pr_numbuiltins*sizeof(builtin_t), "builtins");
	for ( i=0 ; i < pr_numbuiltins ; i++)
	{
		pr_builtins[i] = pr_ebfs_builtins[0].function;
	}

	// create builtin list for execution time and set cvars accordingly
	Cvar_Set(pr_builtin_find, "0");
	Cvar_Set(pr_checkextension, "0");	// 2001-10-20 Extension System by LordHavoc/Maddes (DP compatibility)
	for ( j=1 ; j < pr_ebfs_numbuiltins ; j++)
	{
		if (pr_ebfs_builtins[j].funcno)	// only put assigned functions into builtin list
		{
			pr_builtins[pr_ebfs_builtins[j].funcno] = pr_ebfs_builtins[j].function;
		}

		if (pr_ebfs_builtins[j].default_funcno == PR_DEFAULT_FUNCNO_BUILTIN_FIND)
		{
			Cvar_SetValue(pr_builtin_find, pr_ebfs_builtins[j].funcno);
		}

// 2001-10-20 Extension System by LordHavoc/Maddes (DP compatibility)  start
		if (pr_ebfs_builtins[j].default_funcno == PR_DEFAULT_FUNCNO_EXTENSION_FIND)
		{
			Cvar_SetValue(pr_checkextension, pr_ebfs_builtins[j].funcno);
		}
// 2001-10-20 Extension System by LordHavoc/Maddes (DP compatibility)  end
	}
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes/Firestorm  end

	for (i=0 ; i<progs->numglobaldefs ; i++)
	{
		pr_globaldefs[i].type = LittleShort (pr_globaldefs[i].type);
		pr_globaldefs[i].ofs = LittleShort (pr_globaldefs[i].ofs);
		pr_globaldefs[i].s_name = LittleLong (pr_globaldefs[i].s_name);
	}

	for (i=0 ; i<progs->numfielddefs ; i++)
	{
		pr_fielddefs[i].type = LittleShort (pr_fielddefs[i].type);
		if (pr_fielddefs[i].type & DEF_SAVEGLOBAL)
			Sys_Error ("PR_LoadProgs: pr_fielddefs[i].type & DEF_SAVEGLOBAL");
		pr_fielddefs[i].ofs = LittleShort (pr_fielddefs[i].ofs);
		pr_fielddefs[i].s_name = LittleLong (pr_fielddefs[i].s_name);
	}

	for (i=0 ; i<progs->numglobals ; i++)
		((int *)pr_globals)[i] = LittleLong (((int *)pr_globals)[i]);

// 2000-04-30 NVS HANDSHAKE SRV<->CL/QC<->CL by Maddes  start
	// check if the QuakeC code wants to know the NVS versions of the server and clients
	pr_field_nvs_svc = ED_FindField("nvs_svc");
	if (pr_field_nvs_svc)
	{
		type = pr_field_nvs_svc->type;
		type &= ~DEF_SAVEGLOBAL;
		if (type != ev_float)
		{
			pr_field_nvs_svc = NULL;
		}
	}
// 2000-04-30 NVS HANDSHAKE SRV<->CL/QC<->CL by Maddes  ent

// 2001-11-15 Better GetEdictFieldValue performance by LordHavoc/Maddes  start
// search for the definition only once
	pr_field_ammo_shells1 = ED_FindField("ammo_shells1");
	pr_field_ammo_nails1 = ED_FindField("ammo_nails1");
	pr_field_ammo_lava_nails = ED_FindField("ammo_lava_nails");
	pr_field_ammo_rockets1 = ED_FindField("ammo_rockets1");
	pr_field_ammo_multi_rockets = ED_FindField("ammo_multi_rockets");
	pr_field_ammo_cells1 = ED_FindField("ammo_cells1");
	pr_field_ammo_plasma = ED_FindField("ammo_plasma");
	pr_field_idealpitch = ED_FindField("idealpitch");
	pr_field_pitch_speed = ED_FindField("pitch_speed");
	pr_field_items2 = ED_FindField("items2");
	pr_field_gravity = ED_FindField("gravity");
	pr_field_alpha = ED_FindField("alpha");
	pr_field_scale = ED_FindField("scale");
	pr_field_glowcolor = ED_FindField("glow_color");
	pr_field_glowsize = ED_FindField("glow_size");
// 2001-11-15 Better GetEdictFieldValue performance by LordHavoc/Maddes  end
// leilei


// 2000-01-02 EndFrame function by Maddes/FrikaC  start
	pr_func_endframe = 0;

	if ((f = ED_FindFunction ("EndFrame")) != NULL)
	{
		pr_func_endframe = (func_t)(f - pr_functions);
	}
// 2000-01-02 EndFrame function by Maddes/FrikaC  end

// 2001-10-20 TIMESCALE extension by Tomaz/Maddes  start
	pr_global_cpu_frametime = ED_FindGlobal ("cpu_frametime");
	if (pr_global_cpu_frametime)
	{
		type = pr_global_cpu_frametime->type;
		type &= ~DEF_SAVEGLOBAL;
		if (type != ev_float)
		{
			pr_global_cpu_frametime = NULL;
		}
	}

	pr_global_org_frametime = ED_FindGlobal ("org_frametime");
	if (pr_global_org_frametime)
	{
		type = pr_global_org_frametime->type;
		type &= ~DEF_SAVEGLOBAL;
		if (type != ev_float)
		{
			pr_global_org_frametime = NULL;
		}
	}
// 2001-10-20 TIMESCALE extension by Tomaz/Maddes  end
}

// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes  start
/*
=============
PR_BuiltInList_f

For debugging, prints all builtin functions with assigned and default number
=============
*/
void PR_BuiltInList_f (void)
{
	int		i;
	char	*partial;
	int		len;
	int		count;

	if (Cmd_Argc() > 1)
	{
		partial = Cmd_Argv (1);
		len = strlen(partial);
	}
	else
	{
		partial = NULL;
		len = 0;
	}

	count=0;
	for (i=1; i < pr_ebfs_numbuiltins; i++)
	{
		if (partial && Q_strncasecmp (partial, pr_ebfs_builtins[i].funcname, len))
		{
			continue;
		}
		count++;
		Con_Printf ("%i(%i): %s\n", pr_ebfs_builtins[i].funcno, pr_ebfs_builtins[i].default_funcno, pr_ebfs_builtins[i].funcname);
	}

	Con_Printf ("------------\n");
	if (partial)
	{
		Con_Printf ("%i beginning with \"%s\" out of ", count, partial);
	}
	Con_Printf ("%i builtin functions\n", i);
}
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes  end

// 2001-09-18 New cvar system by Maddes (Init)  start
/*
===============
PR_Init_Cvars
===============
*/
void PR_Init_Cvars (void)
{
	nomonsters = Cvar_Get ("nomonsters", "0", CVAR_ORIGINAL);
	gamecfg = Cvar_Get ("gamecfg", "0", CVAR_ORIGINAL);
	scratch1 = Cvar_Get ("scratch1", "0", CVAR_ORIGINAL);
	scratch2 = Cvar_Get ("scratch2", "0", CVAR_ORIGINAL);
	scratch3 = Cvar_Get ("scratch3", "0", CVAR_ORIGINAL);
	scratch4 = Cvar_Get ("scratch4", "0", CVAR_ORIGINAL);
	savedgamecfg = Cvar_Get ("savedgamecfg", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	saved1 = Cvar_Get ("saved1", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	saved2 = Cvar_Get ("saved2", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	saved3 = Cvar_Get ("saved3", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	saved4 = Cvar_Get ("saved4", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);

// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes  start
	pr_builtin_find = Cvar_Get ("pr_builtin_find", "0", CVAR_ROM);
	pr_builtin_remap = Cvar_Get ("pr_builtin_remap", "0", CVAR_NONE);
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes  end

	pr_checkextension = Cvar_Get ("pr_checkextension", "0", CVAR_ROM);	// 2001-10-20 Extension System by LordHavoc/Maddes (DP compatibility)

// 2001-09-20 QuakeC string zone by Maddes  start
	pr_zone_min_strings = Cvar_Get ("pr_zone_min_strings", "64", CVAR_NONE);
	Cvar_SetRangecheck (pr_zone_min_strings, Cvar_RangecheckInt, 64, 8*1024);	// up to 8MB
	Cvar_SetDescription (pr_zone_min_strings, "States the size in KB of the zone for PROGS.DAT strings. Note that the PROGS.DAT may set this cvar itself.");
	Cvar_Set(pr_zone_min_strings, pr_zone_min_strings->string);	// do rangecheck
// 2001-09-20 QuakeC string zone by Maddes  end
}
// 2001-09-18 New cvar system by Maddes (Init)  end

/*
===============
PR_Init
===============
*/
void PR_Init (void)
{
	Cmd_AddCommand ("edict", ED_PrintEdict_f);
	Cmd_AddCommand ("edicts", ED_PrintEdicts);
	Cmd_AddCommand ("edictcount", ED_Count);
	Cmd_AddCommand ("profile", PR_Profile_f);
	Cmd_AddCommand ("builtinlist", PR_BuiltInList_f);	// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes
	Cmd_AddCommand ("extensionlist", PR_Extension_List_f);	// 2001-10-20 Extension System by LordHavoc/Maddes

// 2001-09-18 New cvar system by Maddes (Init)  start
/*
	nomonsters = Cvar_Get ("nomonsters", "0", CVAR_ORIGINAL);
	gamecfg = Cvar_Get ("gamecfg", "0", CVAR_ORIGINAL);
	scratch1 = Cvar_Get ("scratch1", "0", CVAR_ORIGINAL);
	scratch2 = Cvar_Get ("scratch2", "0", CVAR_ORIGINAL);
	scratch3 = Cvar_Get ("scratch3", "0", CVAR_ORIGINAL);
	scratch4 = Cvar_Get ("scratch4", "0", CVAR_ORIGINAL);
	savedgamecfg = Cvar_Get ("savedgamecfg", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	saved1 = Cvar_Get ("saved1", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	saved2 = Cvar_Get ("saved2", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	saved3 = Cvar_Get ("saved3", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	saved4 = Cvar_Get ("saved4", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);

// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes  start
	pr_builtin_find = Cvar_Get ("pr_builtin_find", "0", CVAR_ROM);
	pr_builtin_remap = Cvar_Get ("pr_builtin_remap", "0", CVAR_NONE);
// 2001-09-14 Enhanced BuiltIn Function System (EBFS) by Maddes  end

//	pr_checkextension = Cvar_Get ("pr_checkextension", "0", CVAR_ROM);	// 2001-10-20 Extension System by LordHavoc/Maddes (DP compatibility)
*/
// 2001-09-18 New cvar system by Maddes (Init)  end
}



edict_t *EDICT_NUM(int n)
{
	if (n < 0 || n >= sv.max_edicts)
		Sys_Error ("EDICT_NUM: bad number %i", n);
	return (edict_t *)((byte *)sv.edicts+ (n)*pr_edict_size);
}

int NUM_FOR_EDICT(edict_t *e)
{
	int		b;

	b = (byte *)e - (byte *)sv.edicts;
	b = b / pr_edict_size;

	if (b < 0 || b >= sv.num_edicts)
		Sys_Error ("NUM_FOR_EDICT: bad pointer");
	return b;
}