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pr_edict.c
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// sv_edict.c -- entity dictionary
/*
* $Header: /H2 Mission Pack/Pr_edict.c 11 3/27/98 2:12p Jmonroe $
*/
#include "quakedef.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;
globalvars_v111_t *pr_global_struct_v111;
qboolean is_progdefs111; // whether we have a Hexen2-v1.11 globals struct
float *pr_globals; // same as pr_global_struct
int pr_edict_size; // in bytes
// For international stuff
int *pr_string_index = NULL;
char *pr_global_strings = NULL;
int pr_string_count = 0;
int *pr_info_string_index = NULL;
char *pr_global_info_strings = NULL;
int pr_info_string_count = 0;
qboolean ignore_precache = false;
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 = {"nomonsters", "0"};
cvar_t gamecfg = {"gamecfg", "0"};
cvar_t scratch1 = {"scratch1", "0"};
cvar_t scratch2 = {"scratch2", "0"};
cvar_t scratch3 = {"scratch3", "0"};
cvar_t scratch4 = {"scratch4", "0"};
cvar_t savedgamecfg = {"savedgamecfg", "0", true};
cvar_t saved1 = {"saved1", "0", true};
cvar_t saved2 = {"saved2", "0", true};
cvar_t saved3 = {"saved3", "0", true};
cvar_t saved4 = {"saved4", "0", true};
cvar_t max_temp_edicts = {"max_temp_edicts", "30", true};
static char field_name[256], class_name[256];
static qboolean RemoveBadReferences;
#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, ""}};
/*
=================
ED_ClearEdict
Sets everything to NULL
=================
*/
void ED_ClearEdict (edict_t *e)
{
memset (&e->v, 0, progs->entityfields * 4);
memset (&e->baseline, 0, sizeof(e->baseline));
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+max_temp_edicts.value ; 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;
}
}
if (i == MAX_EDICTS)
{
SV_Edicts("edicts.txt");
Sys_Error ("ED_Alloc: no free edicts");
}
sv.num_edicts++;
e = EDICT_NUM(i);
ED_ClearEdict (e);
return e;
}
edict_t *ED_Alloc_Temp (void)
{
int i,j,Found;
edict_t *e,*Least;
float LeastTime;
qboolean LeastSet;
LeastTime = -1;
LeastSet = false;
for ( i=svs.maxclients+1,j=0 ; j < max_temp_edicts.value ; i++,j++)
{
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);
e->alloctime = sv.time;
return e;
}
else if (e->alloctime < LeastTime || !LeastSet)
{
Least = e;
LeastTime = e->alloctime;
Found = j;
LeastSet = true;
}
}
ED_Free(Least);
ED_ClearEdict (Least);
Least->alloctime = sv.time;
return Least;
}
/*
=================
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->alloctime = -1;
}
//===========================================================================
/*
============
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;
}
dfunction_t *ED_FindFunctioni (char *name)
{
dfunction_t *func;
int i;
for (i=0 ; i<progs->numfunctions ; i++)
{
func = &pr_functions[i];
if (!strcmpi(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] == '_') &&
((name[strlen(name)-1] == 'x') || (name[strlen(name)-1] == 'y') || (name[strlen(name)-1] == 'z')))
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;
int length;
fprintf (f, "{\n");
if (ed->free)
{
fprintf (f, "}\n");
return;
}
RemoveBadReferences = true;
if (ed->v.classname)
strcpy(class_name,pr_strings + ed->v.classname);
else
class_name[0] = 0;
for (i=1 ; i<progs->numfielddefs ; i++)
{
d = &pr_fielddefs[i];
name = pr_strings + d->s_name;
length = strlen(name);
if (name[length-2] == '_' && name[length-1] >= 'x' && name[length-1] <= 'z')
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;
strcpy(field_name,name);
fprintf (f,"\"%s\" ",name);
fprintf (f,"\"%s\"\n", PR_UglyValueString(d->type, (eval_t *)v));
}
field_name[0] = 0;
class_name[0] = 0;
fprintf (f, "}\n");
RemoveBadReferences = false;
}
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 edicy
=============
*/
void ED_PrintEdict_f (void)
{
int i;
i = 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_AllocName (l, "string");
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;
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;
if (strcmpi(keyname,"MIDI") == 0)
{
strcpy(sv.midi_name,com_token);
continue;
}
else if (strcmpi(keyname,"CD") == 0)
{
sv.cd_track = (byte)atol(com_token);
continue;
}
key = ED_FindField (keyname);
if (!key)
{
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 (!init)
ent->free = true;
return data;
}
extern int entity_file_size;
/*
================
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.
================
*/
void ED_LoadFromFile (char *data)
{
dfunction_t *func;
edict_t *ent = NULL;
int inhibit = 0;
int start_amount = current_loading_size;
char *orig = data;