ref: 61a599f5996df132c2e10c0d5dacd806b8757a1f
dir: /main.c/
int startgame;
s16int mouseadjustment;
char configname[13]="CONFIG.";
void ReadConfig(void)
{
s16int file;
SDMode sd;
SMMode sm;
SDSMode sds;
if ( (file = open(configname,O_BINARY | O_RDONLY)) != -1)
{
//
// valid config file
//
read(file,Scores,sizeof(HighScore) * MaxScores);
read(file,&sd,sizeof(sd));
read(file,&sm,sizeof(sm));
read(file,&sds,sizeof(sds));
read(file,&mouseenabled,sizeof(mouseenabled));
read(file,&joystickenabled,sizeof(joystickenabled));
read(file,&joypadenabled,sizeof(joypadenabled));
read(file,&joystickprogressive,sizeof(joystickprogressive));
read(file,&joystickport,sizeof(joystickport));
read(file,&dirscan,sizeof(dirscan));
read(file,&buttonscan,sizeof(buttonscan));
read(file,&buttonmouse,sizeof(buttonmouse));
read(file,&buttonjoy,sizeof(buttonjoy));
read(file,&vw.size,sizeof(vw.size));
read(file,&mouseadjustment,sizeof(mouseadjustment));
close(file);
if (sd == sdm_AdLib && !AdLibPresent && !SoundBlasterPresent)
{
sd = sdm_PC;
sd = smm_Off;
}
if ((sds == sds_SoundBlaster && !SoundBlasterPresent) ||
(sds == sds_SoundSource && !SoundSourcePresent))
sds = sds_Off;
if (!MousePresent)
mouseenabled = false;
MainMenu[6].active=1;
}
else
{
//
// no config file, so select by hardware
//
if (SoundBlasterPresent || AdLibPresent)
{
sd = sdm_AdLib;
sm = smm_AdLib;
}
else
{
sd = sdm_PC;
sm = smm_Off;
}
if (SoundBlasterPresent)
sds = sds_SoundBlaster;
else if (SoundSourcePresent)
sds = sds_SoundSource;
else
sds = sds_Off;
if (MousePresent)
mouseenabled = true;
vw.size = 15;
mouseadjustment=5;
}
SD_SetMusicMode (sm);
SD_SetSoundMode (sd);
SD_SetDigiDevice (sds);
}
void WriteConfig(void)
{
s16int file;
file = open(configname,O_CREAT | O_BINARY | O_WRONLY,
S_IREAD | S_IWRITE | S_IFREG);
if (file != -1)
{
write(file,Scores,sizeof(HighScore) * MaxScores);
write(file,&SoundMode,sizeof(SoundMode));
write(file,&MusicMode,sizeof(MusicMode));
write(file,&DigiMode,sizeof(DigiMode));
write(file,&mouseenabled,sizeof(mouseenabled));
write(file,&joystickenabled,sizeof(joystickenabled));
write(file,&joypadenabled,sizeof(joypadenabled));
write(file,&joystickprogressive,sizeof(joystickprogressive));
write(file,&joystickport,sizeof(joystickport));
write(file,&dirscan,sizeof(dirscan));
write(file,&buttonscan,sizeof(buttonscan));
write(file,&buttonmouse,sizeof(buttonmouse));
write(file,&buttonjoy,sizeof(buttonjoy));
write(file,&vw.size,sizeof(vw.size));
write(file,&mouseadjustment,sizeof(mouseadjustment));
close(file);
}
}
void DiskFlopAnim(s16int x,s16int y)
{
static char which=0;
if (!x && !y)
return;
VWB_DrawPic(x,y,Pread1+which);
VW_UpdateScreen();
which^=1;
}
s32int DoChecksum(u8int far *source,u16int size,s32int checksum)
{
u16int i;
for (i=0;i<size-1;i++)
checksum += source[i]^source[i+1];
return checksum;
}
int SaveTheGame(s16int file,s16int x,s16int y)
{
struct diskfree_t dfree;
s32int avail,size,checksum;
objtype *ob,nullobj;
if (_dos_getdiskfree(0,&dfree))
Quit("Error in _dos_getdiskfree call");
avail = (s32int)dfree.avail_clusters *
dfree.bytes_per_sector *
dfree.sectors_per_cluster;
size = 0;
for (ob = player; ob ; ob=ob->next)
size += sizeof(*ob);
size += sizeof(nullobj);
size += sizeof(gamestate) +
sizeof(LRstruct)*8 +
sizeof(tilemap) +
sizeof(actorat) +
sizeof(laststatobj) +
sizeof(statobjlist) +
sizeof(doorposition) +
sizeof(pwallstate) +
sizeof(pwallx) +
sizeof(pwally) +
sizeof(pwalldir) +
sizeof(pwallpos);
if (avail < size)
{
Message("There is not enough space\n"
"on your disk to Save Game!");
return false;
}
checksum = 0;
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)&gamestate,sizeof(gamestate));
checksum = DoChecksum((u8int far *)&gamestate,sizeof(gamestate),checksum);
DiskFlopAnim(x,y);
#ifdef SPEAR
CA_FarWrite (file,(void far *)&LevelRatios[0],sizeof(LRstruct)*20);
checksum = DoChecksum((u8int far *)&LevelRatios[0],sizeof(LRstruct)*20,checksum);
#else
CA_FarWrite (file,(void far *)&LevelRatios[0],sizeof(LRstruct)*8);
checksum = DoChecksum((u8int far *)&LevelRatios[0],sizeof(LRstruct)*8,checksum);
#endif
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)tilemap,sizeof(tilemap));
checksum = DoChecksum((u8int far *)tilemap,sizeof(tilemap),checksum);
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)actorat,sizeof(actorat));
checksum = DoChecksum((u8int far *)actorat,sizeof(actorat),checksum);
CA_FarWrite (file,(void far *)conarea,sizeof(conarea));
CA_FarWrite (file,(void far *)plrarea,sizeof(plrarea));
for (ob = player ; ob ; ob=ob->next)
{
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)ob,sizeof(*ob));
}
nullobj.active = ac_badobject; // end of file marker
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)&nullobj,sizeof(nullobj));
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)&laststatobj,sizeof(laststatobj));
checksum = DoChecksum((u8int far *)&laststatobj,sizeof(laststatobj),checksum);
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)statobjlist,sizeof(statobjlist));
checksum = DoChecksum((u8int far *)statobjlist,sizeof(statobjlist),checksum);
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)doorposition,sizeof(doorposition));
checksum = DoChecksum((u8int far *)doorposition,sizeof(doorposition),checksum);
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)doorobjlist,sizeof(doorobjlist));
checksum = DoChecksum((u8int far *)doorobjlist,sizeof(doorobjlist),checksum);
DiskFlopAnim(x,y);
CA_FarWrite (file,(void far *)&pwallstate,sizeof(pwallstate));
checksum = DoChecksum((u8int far *)&pwallstate,sizeof(pwallstate),checksum);
CA_FarWrite (file,(void far *)&pwallx,sizeof(pwallx));
checksum = DoChecksum((u8int far *)&pwallx,sizeof(pwallx),checksum);
CA_FarWrite (file,(void far *)&pwally,sizeof(pwally));
checksum = DoChecksum((u8int far *)&pwally,sizeof(pwally),checksum);
CA_FarWrite (file,(void far *)&pwalldir,sizeof(pwalldir));
checksum = DoChecksum((u8int far *)&pwalldir,sizeof(pwalldir),checksum);
CA_FarWrite (file,(void far *)&pwallpos,sizeof(pwallpos));
checksum = DoChecksum((u8int far *)&pwallpos,sizeof(pwallpos),checksum);
//
// WRITE OUT CHECKSUM
//
CA_FarWrite (file,(void far *)&checksum,sizeof(checksum));
return(true);
}
int LoadTheGame(s16int file,s16int x,s16int y)
{
s32int checksum,oldchecksum;
objtype *ob,nullobj;
checksum = 0;
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)&gamestate,sizeof(gamestate));
checksum = DoChecksum((u8int far *)&gamestate,sizeof(gamestate),checksum);
DiskFlopAnim(x,y);
#ifdef SPEAR
CA_FarRead (file,(void far *)&LevelRatios[0],sizeof(LRstruct)*20);
checksum = DoChecksum((u8int far *)&LevelRatios[0],sizeof(LRstruct)*20,checksum);
#else
CA_FarRead (file,(void far *)&LevelRatios[0],sizeof(LRstruct)*8);
checksum = DoChecksum((u8int far *)&LevelRatios[0],sizeof(LRstruct)*8,checksum);
#endif
DiskFlopAnim(x,y);
initmap ();
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)tilemap,sizeof(tilemap));
checksum = DoChecksum((u8int far *)tilemap,sizeof(tilemap),checksum);
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)actorat,sizeof(actorat));
checksum = DoChecksum((u8int far *)actorat,sizeof(actorat),checksum);
CA_FarRead (file,(void far *)conarea,sizeof(conarea));
CA_FarRead (file,(void far *)plrarea,sizeof(plrarea));
oinit ();
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)player,sizeof(*player));
while (1)
{
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)&nullobj,sizeof(nullobj));
if (nullobj.active == ac_badobject)
break;
onew ();
// don't copy over the links
memcpy (new,&nullobj,sizeof(nullobj)-4);
}
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)&laststatobj,sizeof(laststatobj));
checksum = DoChecksum((u8int far *)&laststatobj,sizeof(laststatobj),checksum);
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)statobjlist,sizeof(statobjlist));
checksum = DoChecksum((u8int far *)statobjlist,sizeof(statobjlist),checksum);
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)doorposition,sizeof(doorposition));
checksum = DoChecksum((u8int far *)doorposition,sizeof(doorposition),checksum);
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)doorobjlist,sizeof(doorobjlist));
checksum = DoChecksum((u8int far *)doorobjlist,sizeof(doorobjlist),checksum);
DiskFlopAnim(x,y);
CA_FarRead (file,(void far *)&pwallstate,sizeof(pwallstate));
checksum = DoChecksum((u8int far *)&pwallstate,sizeof(pwallstate),checksum);
CA_FarRead (file,(void far *)&pwallx,sizeof(pwallx));
checksum = DoChecksum((u8int far *)&pwallx,sizeof(pwallx),checksum);
CA_FarRead (file,(void far *)&pwally,sizeof(pwally));
checksum = DoChecksum((u8int far *)&pwally,sizeof(pwally),checksum);
CA_FarRead (file,(void far *)&pwalldir,sizeof(pwalldir));
checksum = DoChecksum((u8int far *)&pwalldir,sizeof(pwalldir),checksum);
CA_FarRead (file,(void far *)&pwallpos,sizeof(pwallpos));
checksum = DoChecksum((u8int far *)&pwallpos,sizeof(pwallpos),checksum);
CA_FarRead (file,(void far *)&oldchecksum,sizeof(oldchecksum));
if (oldchecksum != checksum)
{
Message("Your Save Game file is,\n"
"shall we say, \"corrupted\".\n"
"But I'll let you go on and\n"
"play anyway....");
IN_ClearKeysDown();
IN_Ack();
gm.score = 0;
gm.lives = 1;
gm.w = gm.bestw = gm.lastw = WPpistol;
gm.ammo = 8;
}
return true;
}
void DemoLoop (void)
{
while (1)
{
while (!NoWait)
{
PlayDemo(p++);
if(p >= epis)
p = dems;
if (gm.φ == ex_abort)
break;
StartCPMusic(INTROSONG);
}
VW_FadeOut ();
if (Keyboard[sc_Tab] && debug)
RecordDemo ();
else
US_ControlPanel (0);
if (startgame || gm.load)
{
GameLoop ();
VW_FadeOut();
StartCPMusic(INTROSONG);
}
}
}