ref: 8ec7f169c5bb4ff30cacaaccbc99585e95d0d008
dir: /game/g_save.c/
/*
Copyright (C) 1997-2001 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.
*/
#define GAME_INCLUDE
#include <u.h>
#include <libc.h>
#include <stdio.h>
#include "../dat.h"
#include "../fns.h"
#include "g_local.h"
#define Function(f) {#f, f}
mmove_t mmove_reloc;
field_t fields[] = {
{"classname", FOFS(classname), F_LSTRING},
{"model", FOFS(model), F_LSTRING},
{"spawnflags", FOFS(spawnflags), F_INT},
{"speed", FOFS(speed), F_FLOAT},
{"accel", FOFS(accel), F_FLOAT},
{"decel", FOFS(decel), F_FLOAT},
{"target", FOFS(target), F_LSTRING},
{"targetname", FOFS(targetname), F_LSTRING},
{"pathtarget", FOFS(pathtarget), F_LSTRING},
{"deathtarget", FOFS(deathtarget), F_LSTRING},
{"killtarget", FOFS(killtarget), F_LSTRING},
{"combattarget", FOFS(combattarget), F_LSTRING},
{"message", FOFS(message), F_LSTRING},
{"team", FOFS(team), F_LSTRING},
{"wait", FOFS(wait), F_FLOAT},
{"delay", FOFS(delay), F_FLOAT},
{"random", FOFS(random), F_FLOAT},
{"move_origin", FOFS(move_origin), F_VECTOR},
{"move_angles", FOFS(move_angles), F_VECTOR},
{"style", FOFS(style), F_INT},
{"count", FOFS(count), F_INT},
{"health", FOFS(health), F_INT},
{"sounds", FOFS(sounds), F_INT},
{"light", 0, F_IGNORE},
{"dmg", FOFS(dmg), F_INT},
{"mass", FOFS(mass), F_INT},
{"volume", FOFS(volume), F_FLOAT},
{"attenuation", FOFS(attenuation), F_FLOAT},
{"map", FOFS(map), F_LSTRING},
{"origin", FOFS(s.origin), F_VECTOR},
{"angles", FOFS(s.angles), F_VECTOR},
{"angle", FOFS(s.angles), F_ANGLEHACK},
{"goalentity", FOFS(goalentity), F_EDICT, FFL_NOSPAWN},
{"movetarget", FOFS(movetarget), F_EDICT, FFL_NOSPAWN},
{"enemy", FOFS(enemy), F_EDICT, FFL_NOSPAWN},
{"oldenemy", FOFS(oldenemy), F_EDICT, FFL_NOSPAWN},
{"activator", FOFS(activator), F_EDICT, FFL_NOSPAWN},
{"groundentity", FOFS(groundentity), F_EDICT, FFL_NOSPAWN},
{"teamchain", FOFS(teamchain), F_EDICT, FFL_NOSPAWN},
{"teammaster", FOFS(teammaster), F_EDICT, FFL_NOSPAWN},
{"owner", FOFS(owner), F_EDICT, FFL_NOSPAWN},
{"mynoise", FOFS(mynoise), F_EDICT, FFL_NOSPAWN},
{"mynoise2", FOFS(mynoise2), F_EDICT, FFL_NOSPAWN},
{"target_ent", FOFS(target_ent), F_EDICT, FFL_NOSPAWN},
{"chain", FOFS(chain), F_EDICT, FFL_NOSPAWN},
{"prethink", FOFS(prethink), F_FUNCTION, FFL_NOSPAWN},
{"think", FOFS(think), F_FUNCTION, FFL_NOSPAWN},
{"blocked", FOFS(blocked), F_FUNCTION, FFL_NOSPAWN},
{"touch", FOFS(touch), F_FUNCTION, FFL_NOSPAWN},
{"use", FOFS(use), F_FUNCTION, FFL_NOSPAWN},
{"pain", FOFS(pain), F_FUNCTION, FFL_NOSPAWN},
{"die", FOFS(die), F_FUNCTION, FFL_NOSPAWN},
{"stand", FOFS(monsterinfo.stand), F_FUNCTION, FFL_NOSPAWN},
{"idle", FOFS(monsterinfo.idle), F_FUNCTION, FFL_NOSPAWN},
{"search", FOFS(monsterinfo.search), F_FUNCTION, FFL_NOSPAWN},
{"walk", FOFS(monsterinfo.walk), F_FUNCTION, FFL_NOSPAWN},
{"run", FOFS(monsterinfo.run), F_FUNCTION, FFL_NOSPAWN},
{"dodge", FOFS(monsterinfo.dodge), F_FUNCTION, FFL_NOSPAWN},
{"attack", FOFS(monsterinfo.attack), F_FUNCTION, FFL_NOSPAWN},
{"melee", FOFS(monsterinfo.melee), F_FUNCTION, FFL_NOSPAWN},
{"sight", FOFS(monsterinfo.sight), F_FUNCTION, FFL_NOSPAWN},
{"checkattack", FOFS(monsterinfo.checkattack), F_FUNCTION, FFL_NOSPAWN},
{"currentmove", FOFS(monsterinfo.currentmove), F_MMOVE, FFL_NOSPAWN},
{"endfunc", FOFS(moveinfo.endfunc), F_FUNCTION, FFL_NOSPAWN},
// temp spawn vars -- only valid when the spawn function is called
{"lip", STOFS(lip), F_INT, FFL_SPAWNTEMP},
{"distance", STOFS(distance), F_INT, FFL_SPAWNTEMP},
{"height", STOFS(height), F_INT, FFL_SPAWNTEMP},
{"noise", STOFS(noise), F_LSTRING, FFL_SPAWNTEMP},
{"pausetime", STOFS(pausetime), F_FLOAT, FFL_SPAWNTEMP},
{"item", STOFS(item), F_LSTRING, FFL_SPAWNTEMP},
//need for item field in edict struct, FFL_SPAWNTEMP item will be skipped on saves
{"item", FOFS(item), F_ITEM},
{"gravity", STOFS(gravity), F_LSTRING, FFL_SPAWNTEMP},
{"sky", STOFS(sky), F_LSTRING, FFL_SPAWNTEMP},
{"skyrotate", STOFS(skyrotate), F_FLOAT, FFL_SPAWNTEMP},
{"skyaxis", STOFS(skyaxis), F_VECTOR, FFL_SPAWNTEMP},
{"minyaw", STOFS(minyaw), F_FLOAT, FFL_SPAWNTEMP},
{"maxyaw", STOFS(maxyaw), F_FLOAT, FFL_SPAWNTEMP},
{"minpitch", STOFS(minpitch), F_FLOAT, FFL_SPAWNTEMP},
{"maxpitch", STOFS(maxpitch), F_FLOAT, FFL_SPAWNTEMP},
{"nextmap", STOFS(nextmap), F_LSTRING, FFL_SPAWNTEMP},
{0, 0, 0, 0}
};
field_t levelfields[] =
{
{"changemap", LLOFS(changemap), F_LSTRING},
{"sight_client", LLOFS(sight_client), F_EDICT},
{"sight_entity", LLOFS(sight_entity), F_EDICT},
{"sound_entity", LLOFS(sound_entity), F_EDICT},
{"sound2_entity", LLOFS(sound2_entity), F_EDICT},
{NULL, 0, F_INT}
};
field_t clientfields[] =
{
{"pers.weapon", CLOFS(pers.weapon), F_ITEM},
{"pers.lastweapon", CLOFS(pers.lastweapon), F_ITEM},
{"newweapon", CLOFS(newweapon), F_ITEM},
{NULL, 0, F_INT}
};
/*
============
InitGame
This will be called when the dll is first loaded, which
only happens when a new game is started or a save game
is loaded.
============
*/
void InitGame (void)
{
gi.dprintf ("==== InitGame ====\n");
gun_x = gi.cvar ("gun_x", "0", 0);
gun_y = gi.cvar ("gun_y", "0", 0);
gun_z = gi.cvar ("gun_z", "0", 0);
//FIXME: sv_ prefix is wrong for these
sv_rollspeed = gi.cvar ("sv_rollspeed", "200", 0);
sv_rollangle = gi.cvar ("sv_rollangle", "2", 0);
sv_maxvelocity = gi.cvar ("sv_maxvelocity", "2000", 0);
sv_gravity = gi.cvar ("sv_gravity", "800", 0);
// noset vars
dedicated = gi.cvar ("dedicated", "0", CVAR_NOSET);
// latched vars
sv_cheats = gi.cvar ("cheats", "0", CVAR_SERVERINFO|CVAR_LATCH);
gi.cvar ("gamename", GAMEVERSION , CVAR_SERVERINFO | CVAR_LATCH);
gi.cvar ("gamedate", "Nov 30 1997" , CVAR_SERVERINFO | CVAR_LATCH);
maxclients = gi.cvar ("maxclients", "4", CVAR_SERVERINFO | CVAR_LATCH);
maxspectators = gi.cvar ("maxspectators", "4", CVAR_SERVERINFO);
deathmatch = gi.cvar ("deathmatch", "0", CVAR_LATCH);
coop = gi.cvar ("coop", "0", CVAR_LATCH);
skill = gi.cvar ("skill", "1", CVAR_LATCH);
maxentities = gi.cvar ("maxentities", "1024", CVAR_LATCH);
// change anytime vars
dmflags = gi.cvar ("dmflags", "0", CVAR_SERVERINFO);
fraglimit = gi.cvar ("fraglimit", "0", CVAR_SERVERINFO);
timelimit = gi.cvar ("timelimit", "0", CVAR_SERVERINFO);
password = gi.cvar ("password", "", CVAR_USERINFO);
spectator_password = gi.cvar ("spectator_password", "", CVAR_USERINFO);
filterban = gi.cvar ("filterban", "1", 0);
g_select_empty = gi.cvar ("g_select_empty", "0", CVAR_ARCHIVE);
run_pitch = gi.cvar ("run_pitch", "0.002", 0);
run_roll = gi.cvar ("run_roll", "0.005", 0);
bob_up = gi.cvar ("bob_up", "0.005", 0);
bob_pitch = gi.cvar ("bob_pitch", "0.002", 0);
bob_roll = gi.cvar ("bob_roll", "0.002", 0);
// flood control
flood_msgs = gi.cvar ("flood_msgs", "4", 0);
flood_persecond = gi.cvar ("flood_persecond", "4", 0);
flood_waitdelay = gi.cvar ("flood_waitdelay", "10", 0);
// dm map list
sv_maplist = gi.cvar ("sv_maplist", "", 0);
// items
InitItems ();
Com_sprintf (game.helpmessage1, sizeof(game.helpmessage1), "");
Com_sprintf (game.helpmessage2, sizeof(game.helpmessage2), "");
// initialize all entities for this game
game.maxentities = maxentities->value;
g_edicts = gi.TagMalloc (game.maxentities * sizeof(g_edicts[0]), TAG_GAME);
globals.edicts = g_edicts;
globals.max_edicts = game.maxentities;
// initialize all clients for this game
game.maxclients = maxclients->value;
game.clients = gi.TagMalloc (game.maxclients * sizeof(game.clients[0]), TAG_GAME);
globals.num_edicts = game.maxclients+1;
}
//=========================================================
void WriteField1 (FILE *, field_t *field, byte *base)
{
void *p;
int len;
int index;
if (field->flags & FFL_SPAWNTEMP)
return;
p = (void *)(base + field->ofs);
switch (field->type)
{
case F_INT:
case F_FLOAT:
case F_ANGLEHACK:
case F_VECTOR:
case F_IGNORE:
break;
case F_LSTRING:
case F_GSTRING:
if ( *(char **)p )
len = strlen(*(char **)p) + 1;
else
len = 0;
*(int *)p = len;
break;
case F_EDICT:
if ( *(edict_t **)p == NULL)
index = -1;
else
index = *(edict_t **)p - g_edicts;
*(int *)p = index;
break;
case F_CLIENT:
if ( *(gclient_t **)p == NULL)
index = -1;
else
index = *(gclient_t **)p - game.clients;
*(int *)p = index;
break;
case F_ITEM:
if ( *(edict_t **)p == NULL)
index = -1;
else
index = *(gitem_t **)p - itemlist;
*(int *)p = index;
break;
//relative to code segment
case F_FUNCTION:
if (*(byte **)p == NULL)
index = 0;
else
index = *(byte **)p - ((byte *)InitGame);
*(int *)p = index;
break;
//relative to data segment
case F_MMOVE:
if (*(byte **)p == NULL)
index = 0;
else
index = *(byte **)p - (byte *)&mmove_reloc;
*(int *)p = index;
break;
default:
gi.error ("WriteEdict: unknown field type");
}
}
void WriteField2 (FILE *f, field_t *field, byte *base)
{
int len;
void *p;
if (field->flags & FFL_SPAWNTEMP)
return;
p = (void *)(base + field->ofs);
switch (field->type)
{
case F_LSTRING:
if ( *(char **)p )
{
len = strlen(*(char **)p) + 1;
fwrite (*(char **)p, len, 1, f);
}
break;
}
}
void ReadField (FILE *f, field_t *field, byte *base)
{
void *p;
int len;
int index;
if (field->flags & FFL_SPAWNTEMP)
return;
p = (void *)(base + field->ofs);
switch (field->type)
{
case F_INT:
case F_FLOAT:
case F_ANGLEHACK:
case F_VECTOR:
case F_IGNORE:
break;
case F_LSTRING:
len = *(int *)p;
if (!len)
*(char **)p = NULL;
else
{
*(char **)p = gi.TagMalloc (len, TAG_LEVEL);
fread (*(char **)p, len, 1, f);
}
break;
case F_EDICT:
index = *(int *)p;
if ( index == -1 )
*(edict_t **)p = NULL;
else
*(edict_t **)p = &g_edicts[index];
break;
case F_CLIENT:
index = *(int *)p;
if ( index == -1 )
*(gclient_t **)p = NULL;
else
*(gclient_t **)p = &game.clients[index];
break;
case F_ITEM:
index = *(int *)p;
if ( index == -1 )
*(gitem_t **)p = NULL;
else
*(gitem_t **)p = &itemlist[index];
break;
//relative to code segment
case F_FUNCTION:
index = *(int *)p;
if ( index == 0 )
*(byte **)p = NULL;
else
*(byte **)p = ((byte *)InitGame) + index;
break;
//relative to data segment
case F_MMOVE:
index = *(int *)p;
if (index == 0)
*(byte **)p = NULL;
else
*(byte **)p = (byte *)&mmove_reloc + index;
break;
default:
gi.error ("ReadEdict: unknown field type");
}
}
//=========================================================
/*
==============
WriteClient
All pointer variables (except function pointers) must be handled specially.
==============
*/
void WriteClient (FILE *f, gclient_t *client)
{
field_t *field;
gclient_t temp;
// all of the ints, floats, and vectors stay as they are
temp = *client;
// change the pointers to lengths or indexes
for (field=clientfields ; field->name ; field++)
{
WriteField1 (f, field, (byte *)&temp);
}
// write the block
fwrite (&temp, sizeof(temp), 1, f);
// now write any allocated data following the edict
for (field=clientfields ; field->name ; field++)
{
WriteField2 (f, field, (byte *)client);
}
}
/*
==============
ReadClient
All pointer variables (except function pointers) must be handled specially.
==============
*/
void ReadClient (FILE *f, gclient_t *client)
{
field_t *field;
fread (client, sizeof(*client), 1, f);
for (field=clientfields ; field->name ; field++)
{
ReadField (f, field, (byte *)client);
}
}
/*
============
WriteGame
This will be called whenever the game goes to a new level,
and when the user explicitly saves the game.
Game information include cross level data, like multi level
triggers, help computer info, and all client states.
A single player death will automatically restore from the
last save position.
============
*/
void WriteGame (char *filename, qboolean autosave)
{
FILE *f;
int i;
char str[16];
if (!autosave)
SaveClientData ();
f = fopen (filename, "wb");
if (!f)
gi.error ("Couldn't open %s", filename);
memset (str, 0, sizeof(str));
strcpy (str, "Nov 30 1997");
fwrite (str, sizeof(str), 1, f);
game.autosaved = autosave;
fwrite (&game, sizeof(game), 1, f);
game.autosaved = false;
for (i=0 ; i<game.maxclients ; i++)
WriteClient (f, &game.clients[i]);
fclose (f);
}
void ReadGame (char *filename)
{
FILE *f;
int i;
char str[16];
gi.FreeTags (TAG_GAME);
f = fopen (filename, "rb");
if (!f)
gi.error ("Couldn't open %s", filename);
fread (str, sizeof(str), 1, f);
if (strcmp (str, "Nov 30 1997"))
{
fclose (f);
gi.error ("Savegame from an older version.\n");
}
g_edicts = gi.TagMalloc (game.maxentities * sizeof(g_edicts[0]), TAG_GAME);
globals.edicts = g_edicts;
fread (&game, sizeof(game), 1, f);
game.clients = gi.TagMalloc (game.maxclients * sizeof(game.clients[0]), TAG_GAME);
for (i=0 ; i<game.maxclients ; i++)
ReadClient (f, &game.clients[i]);
fclose (f);
}
//==========================================================
/*
==============
WriteEdict
All pointer variables (except function pointers) must be handled specially.
==============
*/
void WriteEdict (FILE *f, edict_t *ent)
{
field_t *field;
edict_t temp;
// all of the ints, floats, and vectors stay as they are
temp = *ent;
// change the pointers to lengths or indexes
for (field=fields ; field->name ; field++)
{
WriteField1 (f, field, (byte *)&temp);
}
// write the block
fwrite (&temp, sizeof(temp), 1, f);
// now write any allocated data following the edict
for (field=fields ; field->name ; field++)
{
WriteField2 (f, field, (byte *)ent);
}
}
/*
==============
WriteLevelLocals
All pointer variables (except function pointers) must be handled specially.
==============
*/
void WriteLevelLocals (FILE *f)
{
field_t *field;
level_locals_t temp;
// all of the ints, floats, and vectors stay as they are
temp = level;
// change the pointers to lengths or indexes
for (field=levelfields ; field->name ; field++)
{
WriteField1 (f, field, (byte *)&temp);
}
// write the block
fwrite (&temp, sizeof(temp), 1, f);
// now write any allocated data following the edict
for (field=levelfields ; field->name ; field++)
{
WriteField2 (f, field, (byte *)&level);
}
}
/*
==============
ReadEdict
All pointer variables (except function pointers) must be handled specially.
==============
*/
void ReadEdict (FILE *f, edict_t *ent)
{
field_t *field;
fread (ent, sizeof(*ent), 1, f);
for (field=fields ; field->name ; field++)
{
ReadField (f, field, (byte *)ent);
}
}
/*
==============
ReadLevelLocals
All pointer variables (except function pointers) must be handled specially.
==============
*/
void ReadLevelLocals (FILE *f)
{
field_t *field;
fread (&level, sizeof(level), 1, f);
for (field=levelfields ; field->name ; field++)
{
ReadField (f, field, (byte *)&level);
}
}
/*
=================
WriteLevel
=================
*/
void WriteLevel (char *filename)
{
int i;
edict_t *ent;
FILE *f;
void *base;
f = fopen (filename, "wb");
if (!f)
gi.error ("Couldn't open %s", filename);
// write out edict size for checking
i = sizeof(edict_t);
fwrite (&i, sizeof(i), 1, f);
// write out a function pointer for checking
base = (void *)InitGame;
fwrite (&base, sizeof(base), 1, f);
// write out level_locals_t
WriteLevelLocals (f);
// write out all the entities
for (i=0 ; i<globals.num_edicts ; i++)
{
ent = &g_edicts[i];
if (!ent->inuse)
continue;
fwrite (&i, sizeof(i), 1, f);
WriteEdict (f, ent);
}
i = -1;
fwrite (&i, sizeof(i), 1, f);
fclose (f);
}
/*
=================
ReadLevel
SpawnEntities will allready have been called on the
level the same way it was when the level was saved.
That is necessary to get the baselines
set up identically.
The server will have cleared all of the world links before
calling ReadLevel.
No clients are connected yet.
=================
*/
void ReadLevel (char *filename)
{
int entnum;
FILE *f;
int i;
void *base;
edict_t *ent;
f = fopen (filename, "rb");
if (!f)
gi.error ("Couldn't open %s", filename);
// free any dynamic memory allocated by loading the level
// base state
gi.FreeTags (TAG_LEVEL);
// wipe all the entities
memset (g_edicts, 0, game.maxentities*sizeof(g_edicts[0]));
globals.num_edicts = maxclients->value+1;
// check edict size
fread (&i, sizeof(i), 1, f);
if (i != sizeof(edict_t))
{
fclose (f);
gi.error ("ReadLevel: mismatched edict size");
}
// check function pointer base address
fread (&base, sizeof(base), 1, f);
#ifdef _WIN32
if (base != (void *)InitGame)
{
fclose (f);
gi.error ("ReadLevel: function pointers have moved");
}
#else
gi.dprintf("Function offsets %d\n", ((byte *)base) - ((byte *)InitGame));
#endif
// load the level locals
ReadLevelLocals (f);
// load all the entities
while (1)
{
if (fread (&entnum, sizeof(entnum), 1, f) != 1)
{
fclose (f);
gi.error ("ReadLevel: failed to read entnum");
}
if (entnum == -1)
break;
if (entnum >= globals.num_edicts)
globals.num_edicts = entnum+1;
ent = &g_edicts[entnum];
ReadEdict (f, ent);
// let the server rebuild world links for this ent
memset (&ent->area, 0, sizeof(ent->area));
gi.linkentity (ent);
}
fclose (f);
// mark all clients as unconnected
for (i=0 ; i<maxclients->value ; i++)
{
ent = &g_edicts[i+1];
ent->client = game.clients + i;
ent->client->pers.connected = false;
}
// do any load time things at this point
for (i=0 ; i<globals.num_edicts ; i++)
{
ent = &g_edicts[i];
if (!ent->inuse)
continue;
// fire any cross-level triggers
if (ent->classname)
if (strcmp(ent->classname, "target_crosslevel_target") == 0)
ent->nextthink = level.time + ent->delay;
}
}