// Fast forwards to the next event.
// If skipHEE is set, HYPERSPACE_ENCOUNTER_EVENTs are skipped.
// Must be called from the Starcon2Main thread.
// TODO: LockGameClock may be removed since it is only
// supposed to be called synchronously wrt the game logic thread.
void
forwardToNextEvent (BOOLEAN skipHEE)
{
HEVENT hEvent;
EVENT *EventPtr;
COUNT year, month, day;
// time of next event
BOOLEAN done;
if (!GameClockRunning ())
return;
LockGameClock ();
done = !skipHEE;
do {
hEvent = GetHeadEvent ();
if (hEvent == 0)
return;
LockEvent (hEvent, &EventPtr);
if (EventPtr->func_index != HYPERSPACE_ENCOUNTER_EVENT)
done = TRUE;
year = EventPtr->year_index;
month = EventPtr->month_index;
day = EventPtr->day_index;
UnlockEvent (hEvent);
for (;;) {
if (GLOBAL (GameClock.year_index) > year ||
(GLOBAL (GameClock.year_index) == year &&
(GLOBAL (GameClock.month_index) > month ||
(GLOBAL (GameClock.month_index) == month &&
GLOBAL (GameClock.day_index) >= day))))
break;
MoveGameClockDays (1);
}
} while (!done);
UnlockGameClock ();
}
BOOLEAN
LoadGame (COUNT which_game, SUMMARY_DESC *SummPtr)
{
uio_Stream *in_fp;
char file[PATH_MAX];
char buf[256];
SUMMARY_DESC loc_sd;
GAME_STATE_FILE *fp;
DECODE_REF fh;
COUNT num_links;
STAR_DESC SD;
ACTIVITY Activity;
sprintf (file, "starcon2.%02u", which_game);
in_fp = res_OpenResFile (saveDir, file, "rb");
if (!in_fp)
return FALSE;
if (!LoadSummary (&loc_sd, in_fp))
{
log_add (log_Error, "Warning: Savegame is corrupt");
res_CloseResFile (in_fp);
return FALSE;
}
if (!SummPtr)
{
SummPtr = &loc_sd;
}
else
{ // only need summary for displaying to user
memcpy (SummPtr, &loc_sd, sizeof (*SummPtr));
res_CloseResFile (in_fp);
return TRUE;
}
// Crude check for big-endian/little-endian incompatibilities.
// year_index is suitable as it's a multi-byte value within
// a specific recognisable range.
if (SummPtr->year_index < START_YEAR ||
SummPtr->year_index >= START_YEAR +
YEARS_TO_KOHRAH_VICTORY + 1 /* Utwig intervention */ +
1 /* time to destroy all races, plenty */ +
25 /* for cheaters */)
{
log_add (log_Error, "Warning: Savegame corrupt or from "
"an incompatible platform.");
res_CloseResFile (in_fp);
return FALSE;
}
GlobData.SIS_state = SummPtr->SS;
if ((fh = copen (in_fp, FILE_STREAM, STREAM_READ)) == 0)
{
res_CloseResFile (in_fp);
return FALSE;
}
ReinitQueue (&GLOBAL (GameClock.event_q));
ReinitQueue (&GLOBAL (encounter_q));
ReinitQueue (&GLOBAL (ip_group_q));
ReinitQueue (&GLOBAL (npc_built_ship_q));
ReinitQueue (&GLOBAL (built_ship_q));
memset (&GLOBAL (GameState[0]), 0, sizeof (GLOBAL (GameState)));
Activity = GLOBAL (CurrentActivity);
LoadGameState (&GlobData.Game_state, fh);
NextActivity = GLOBAL (CurrentActivity);
GLOBAL (CurrentActivity) = Activity;
LoadRaceQueue (fh, &GLOBAL (avail_race_q));
// START_INTERPLANETARY is only set when saving from Homeworld
// encounter screen. When the game is loaded, the
// GenerateOrbitalFunction for the current star system will
// create the encounter anew and populate the npc queue.
if (!(NextActivity & START_INTERPLANETARY))
{
if (NextActivity & START_ENCOUNTER)
LoadShipQueue (fh, &GLOBAL (npc_built_ship_q));
else if (LOBYTE (NextActivity) == IN_INTERPLANETARY)
// XXX: Technically, this queue does not need to be
// saved/loaded at all. IP groups will be reloaded
// from group state files. But the original code did,
// and so will we until we can prove we do not need to.
LoadGroupQueue (fh, &GLOBAL (ip_group_q));
else
// XXX: The empty queue read is only needed to maintain
// the savegame compatibility
LoadEmptyQueue (fh);
}
LoadShipQueue (fh, &GLOBAL (built_ship_q));
// Load the game events (compressed)
cread_16 (fh, &num_links);
{
#ifdef DEBUG_LOAD
log_add (log_Debug, "EVENTS:");
#endif /* DEBUG_LOAD */
while (num_links--)
{
HEVENT hEvent;
EVENT *EventPtr;
hEvent = AllocEvent ();
LockEvent (hEvent, &EventPtr);
LoadEvent (EventPtr, fh);
#ifdef DEBUG_LOAD
log_add (log_Debug, "\t%u/%u/%u -- %u",
EventPtr->month_index,
EventPtr->day_index,
EventPtr->year_index,
EventPtr->func_index);
#endif /* DEBUG_LOAD */
UnlockEvent (hEvent);
PutEvent (hEvent);
}
}
// Load the encounters (black globes in HS/QS (compressed))
cread_16 (fh, &num_links);
{
while (num_links--)
{
HENCOUNTER hEncounter;
ENCOUNTER *EncounterPtr;
hEncounter = AllocEncounter ();
LockEncounter (hEncounter, &EncounterPtr);
LoadEncounter (EncounterPtr, fh);
UnlockEncounter (hEncounter);
PutEncounter (hEncounter);
}
}
// Copy the star info file from the compressed stream
fp = OpenStateFile (STARINFO_FILE, "wb");
if (fp)
{
DWORD flen;
cread_32 (fh, &flen);
while (flen)
{
COUNT num_bytes;
num_bytes = flen >= sizeof (buf) ? sizeof (buf) : (COUNT)flen;
cread (buf, num_bytes, 1, fh);
WriteStateFile (buf, num_bytes, 1, fp);
flen -= num_bytes;
}
CloseStateFile (fp);
}
// Copy the defined groupinfo file from the compressed stream
fp = OpenStateFile (DEFGRPINFO_FILE, "wb");
if (fp)
{
DWORD flen;
cread_32 (fh, &flen);
while (flen)
{
COUNT num_bytes;
num_bytes = flen >= sizeof (buf) ? sizeof (buf) : (COUNT)flen;
cread (buf, num_bytes, 1, fh);
WriteStateFile (buf, num_bytes, 1, fp);
flen -= num_bytes;
}
CloseStateFile (fp);
}
// Copy the random groupinfo file from the compressed stream
fp = OpenStateFile (RANDGRPINFO_FILE, "wb");
if (fp)
{
DWORD flen;
cread_32 (fh, &flen);
while (flen)
{
COUNT num_bytes;
num_bytes = flen >= sizeof (buf) ? sizeof (buf) : (COUNT)flen;
cread (buf, num_bytes, 1, fh);
WriteStateFile (buf, num_bytes, 1, fp);
flen -= num_bytes;
}
CloseStateFile (fp);
}
LoadStarDesc (&SD, fh);
cclose (fh);
res_CloseResFile (in_fp);
EncounterGroup = 0;
EncounterRace = -1;
ReinitQueue (&race_q[0]);
ReinitQueue (&race_q[1]);
CurStarDescPtr = FindStar (NULL, &SD.star_pt, 0, 0);
if (!(NextActivity & START_ENCOUNTER)
&& LOBYTE (NextActivity) == IN_INTERPLANETARY)
NextActivity |= START_INTERPLANETARY;
return TRUE;
}
