ref: 87adc91112b81816c4022c477755403dd5383892
dir: /d_main.c/
// D_main.c
// HEADER FILES ------------------------------------------------------------
#include "h2stdinc.h"
#if defined(__WATCOMC__) && defined(_DOS)
#include <dos.h>
#include <graph.h>
#include <direct.h>
#endif
#include "doomdef.h"
#include "p_local.h"
#include "soundst.h"
#include "v_compat.h"
#include "i_system.h"
// MACROS ------------------------------------------------------------------
#define MAXWADFILES 20
#define SHAREWAREWADNAME "heretic1.wad"
#ifdef RENDER3D
#define V_DrawPatch(x,y,p) OGL_DrawPatch((x),(y),(p))
#define V_DrawRawScreen(a) OGL_DrawRawScreen((a))
#endif
// TYPES -------------------------------------------------------------------
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
void D_CheckNetGame(void);
void G_BuildTiccmd(ticcmd_t *cmd);
void F_Drawer(void);
boolean F_Responder(event_t *ev);
void R_ExecuteSetViewSize(void);
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
void D_ProcessEvents(void);
void D_DoAdvanceDemo(void);
void D_AdvanceDemo (void);
void D_PageDrawer (void);
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
extern boolean MenuActive;
extern boolean askforquit;
// PUBLIC DATA DEFINITIONS -------------------------------------------------
char *basePath = DUMMY_BASEPATH;
boolean shareware = false; // true if only episode 1 present
boolean ExtendedWAD = false; // true if episodes 4 and 5 present
boolean nomonsters; // checkparm of -nomonsters
boolean respawnparm; // checkparm of -respawn
boolean debugmode; // checkparm of -debug
boolean ravpic; // checkparm of -ravpic
boolean singletics; // debug flag to cancel adaptiveness
boolean noartiskip; // whether shift-enter skips an artifact
skill_t startskill;
int startepisode;
int startmap;
boolean autostart;
boolean advancedemo;
FILE *debugfile;
event_t events[MAXEVENTS];
int eventhead;
int eventtail;
// PRIVATE DATA DEFINITIONS ------------------------------------------------
static int demosequence;
static int pagetic;
static const char *pagename;
static char basedefault[1024];
static const char *wadfiles[MAXWADFILES + 1] =
{
"heretic.wad",
NULL /* the last entry MUST be NULL */
};
// CODE --------------------------------------------------------------------
#if !(defined(__WATCOMC__) || defined(__DJGPP__) || defined(_WIN32))
char *strlwr (char *str)
{
char *c;
c = str;
while (*c)
{
*c = tolower(*c);
c++;
}
return str;
}
char *strupr (char *str)
{
char *c;
c = str;
while (*c)
{
*c = toupper(*c);
c++;
}
return str;
}
int filelength(int handle)
{
Dir *d;
int length;
d = dirfstat(handle);
if (d == nil)
{
I_Error("Error fstating");
}
length = d->length;
free(d);
return length;
}
#endif
//==========================================================================
//
// Fixed Point math
//
//==========================================================================
#if defined(_HAVE_FIXED_ASM)
#if defined(__i386__) || defined(__386__) || defined(_M_IX86)
#if defined(__GNUC__) && !defined(_INLINE_FIXED_ASM)
fixed_t FixedMul (fixed_t a, fixed_t b)
{
fixed_t retval;
__asm__ __volatile__(
"imull %%edx \n\t"
"shrdl $16, %%edx, %%eax \n\t"
: "=a" (retval)
: "a" (a), "d" (b)
: "cc"
);
return retval;
}
fixed_t FixedDiv2 (fixed_t a, fixed_t b)
{
fixed_t retval;
__asm__ __volatile__(
"cdq \n\t"
"shldl $16, %%eax, %%edx \n\t"
"sall $16, %%eax \n\t"
"idivl %%ebx \n\t"
: "=a" (retval)
: "a" (a), "b" (b)
: "%edx", "cc"
);
return retval;
}
#endif /* GCC and !_INLINE_FIXED_ASM */
#endif /* x86 */
#else /* C-only versions */
fixed_t FixedMul (fixed_t a, fixed_t b)
{
return ((int64_t) a * (int64_t) b) >> 16;
}
fixed_t FixedDiv2 (fixed_t a, fixed_t b)
{
if (!b)
return 0;
return (fixed_t) (((double) a / (double) b) * FRACUNIT);
}
#endif
fixed_t FixedDiv (fixed_t a, fixed_t b)
{
if ((abs(a) >> 14) >= abs(b))
{
return ((a^b) < 0 ? H2MININT : H2MAXINT);
}
return (FixedDiv2(a, b));
}
//==========================================================================
//
// Byte swap functions
//
//==========================================================================
int16_t ShortSwap (int16_t x)
{
return (int16_t) (((uint16_t)x << 8) | ((uint16_t)x >> 8));
}
int32_t LongSwap (int32_t x)
{
return (int32_t) (((uint32_t)x << 24) | ((uint32_t)x >> 24) |
(((uint32_t)x & (uint32_t)0x0000ff00UL) << 8) |
(((uint32_t)x & (uint32_t)0x00ff0000UL) >> 8));
}
/*
===============================================================================
EVENT HANDLING
Events are asyncronous inputs generally generated by the game user.
Events can be discarded if no responder claims them
===============================================================================
*/
//---------------------------------------------------------------------------
//
// PROC D_PostEvent
//
// Called by the I/O functions when input is detected.
//
//---------------------------------------------------------------------------
void D_PostEvent(event_t *ev)
{
events[eventhead] = *ev;
eventhead++;
eventhead &= (MAXEVENTS - 1);
}
//---------------------------------------------------------------------------
//
// PROC D_ProcessEvents
//
// Send all the events of the given timestamp down the responder chain.
//
//---------------------------------------------------------------------------
void D_ProcessEvents(void)
{
event_t *ev;
while (eventtail != eventhead)
{
ev = &events[eventtail];
if (F_Responder(ev))
{
goto _next_ev;
}
if (MN_Responder(ev))
{
goto _next_ev;
}
G_Responder(ev);
_next_ev:
eventtail = (eventtail + 1) & (MAXEVENTS - 1);
}
}
//---------------------------------------------------------------------------
//
// PROC DrawMessage
//
//---------------------------------------------------------------------------
void DrawMessage(void)
{
player_t *player;
player = &players[consoleplayer];
if (player->messageTics <= 0 || !player->message)
{ // No message
return;
}
MN_DrTextA(player->message, 160 - MN_TextAWidth(player->message)/2, 1);
}
//---------------------------------------------------------------------------
//
// PROC D_Display
//
// Draw current display, possibly wiping it from the previous.
//
//---------------------------------------------------------------------------
void D_Display(void)
{
// Change the view size if needed
if (setsizeneeded)
{
R_ExecuteSetViewSize();
}
//
// do buffered drawing
//
switch (gamestate)
{
case GS_LEVEL:
if (!gametic)
break;
#if AM_TRANSPARENT
R_RenderPlayerView (&players[displayplayer]);
#endif
if (automapactive)
AM_Drawer ();
#if !AM_TRANSPARENT
else
{
R_RenderPlayerView (&players[displayplayer]);
}
#endif
CT_Drawer();
UpdateState |= I_FULLVIEW;
SB_Drawer();
break;
case GS_INTERMISSION:
IN_Drawer ();
break;
case GS_FINALE:
F_Drawer ();
break;
case GS_DEMOSCREEN:
D_PageDrawer ();
break;
}
if (paused && !MenuActive && !askforquit)
{
if (!netgame)
{
V_DrawPatch(160, viewwindowy + 5, (PATCH_REF)WR_CacheLumpName("PAUSED", PU_CACHE));
}
else
{
V_DrawPatch(160, 70, (PATCH_REF)WR_CacheLumpName("PAUSED", PU_CACHE));
}
}
#ifdef RENDER3D
if (OGL_DrawFilter())
BorderNeedRefresh = true;
#endif
// Handle player messages
DrawMessage();
// Menu drawing
MN_Drawer();
// Send out any new accumulation
NetUpdate();
// Flush buffered stuff to screen
I_Update();
}
//---------------------------------------------------------------------------
//
// PROC D_DoomLoop
//
//---------------------------------------------------------------------------
void D_DoomLoop(void)
{
if (M_CheckParm("-debugfile"))
{
char filename[20];
snprintf(filename, sizeof(filename), "debug%i.txt", consoleplayer);
debugfile = fopen(filename,"w");
}
I_InitGraphics();
while (1)
{
// Frame syncronous IO operations
I_StartFrame();
// Process one or more tics
if (singletics)
{
I_StartTic();
D_ProcessEvents();
G_BuildTiccmd(&netcmds[consoleplayer][maketic%BACKUPTICS]);
if (advancedemo)
D_DoAdvanceDemo ();
G_Ticker();
gametic++;
maketic++;
}
else
{
// Will run at least one tic
TryRunTics();
}
// Move positional sounds
S_UpdateSounds(players[consoleplayer].mo);
D_Display();
}
}
/*
===============================================================================
DEMO LOOP
===============================================================================
*/
/*
================
=
= D_PageTicker
=
= Handles timing for warped projection
=
================
*/
void D_PageTicker (void)
{
if (--pagetic < 0)
D_AdvanceDemo ();
}
/*
================
=
= D_PageDrawer
=
================
*/
extern boolean MenuActive;
void D_PageDrawer(void)
{
V_DrawRawScreen((BYTE_REF)WR_CacheLumpName(pagename, PU_CACHE));
if (demosequence == 1)
{
V_DrawPatch(4, 160, (PATCH_REF)WR_CacheLumpName("ADVISOR", PU_CACHE));
}
UpdateState |= I_FULLSCRN;
}
/*
=================
=
= D_AdvanceDemo
=
= Called after each demo or intro demosequence finishes
=================
*/
void D_AdvanceDemo (void)
{
advancedemo = true;
}
void D_DoAdvanceDemo (void)
{
players[consoleplayer].playerstate = PST_LIVE; // don't reborn
advancedemo = false;
usergame = false; // can't save / end game here
paused = false;
gameaction = ga_nothing;
demosequence = (demosequence + 1) % 7;
switch (demosequence)
{
case 0:
pagetic = 210;
gamestate = GS_DEMOSCREEN;
pagename = "TITLE";
S_StartSong(mus_titl, false);
break;
case 1:
pagetic = 140;
gamestate = GS_DEMOSCREEN;
pagename = "TITLE";
break;
case 2:
BorderNeedRefresh = true;
UpdateState |= I_FULLSCRN;
G_DeferedPlayDemo ("demo1");
break;
case 3:
pagetic = 200;
gamestate = GS_DEMOSCREEN;
pagename = "CREDIT";
break;
case 4:
BorderNeedRefresh = true;
UpdateState |= I_FULLSCRN;
G_DeferedPlayDemo ("demo2");
break;
case 5:
pagetic = 200;
gamestate = GS_DEMOSCREEN;
if (shareware)
{
pagename = "ORDER";
}
else
{
pagename = "CREDIT";
}
break;
case 6:
BorderNeedRefresh = true;
UpdateState |= I_FULLSCRN;
G_DeferedPlayDemo ("demo3");
break;
}
}
/*
=================
=
= D_StartTitle
=
=================
*/
void D_StartTitle (void)
{
gameaction = ga_nothing;
demosequence = -1;
D_AdvanceDemo ();
}
/*
==============
=
= D_CheckRecordFrom
=
= -recordfrom <savegame num> <demoname>
==============
*/
void D_CheckRecordFrom (void)
{
int p;
p = M_CheckParm ("-recordfrom");
if (!p || p >= myargc - 2)
return;
G_LoadGame(atoi(myargv[p + 1]));
G_DoLoadGame(); // load the gameskill etc info from savegame
G_RecordDemo(gameskill, 1, gameepisode, gamemap, myargv[p + 2]);
D_DoomLoop(); // never returns
}
/*
===============
=
= D_AddFile
=
===============
*/
void D_AddFile(const char *file)
{
int i = 0;
char *newwad;
while (wadfiles[i])
{
if (++i == MAXWADFILES)
I_Error ("MAXWADFILES reached for %s", file);
}
newwad = (char *) malloc(strlen(file) + 1);
strcpy(newwad, file);
wadfiles[i] = newwad;
if (++i <= MAXWADFILES)
wadfiles[i] = NULL;
}
//==========================================================
//
// Startup Thermo code
// FIXME : MOVE OR REMOVE THIS...
//==========================================================
#if defined(__WATCOMC__) && defined(_DOS)
#define MSG_Y 9
/*
#define THERM_X 15
#define THERM_Y 16
#define THERMCOLOR 3
*/
#define THERM_X 14
#define THERM_Y 14
static int thermMax;
static int thermCurrent;
//
// Heretic startup screen shit
//
static byte *hscreen;
static char *startup; // * to text screen
static char smsg[80]; // status bar line
static char tmsg[300];
static void hgotoxy(int x,int y)
{
hscreen = (byte *)(0xb8000 + y*160 + x*2);
}
static void hput(unsigned char c, unsigned char a)
{
*hscreen++ = c;
*hscreen++ = a;
}
static void hprintf(const char *string, unsigned char a)
{
int i;
if (debugmode)
{
puts(string);
return;
}
for (i = 0; i < strlen(string); i++)
{
hput(string[i], a);
}
}
static void drawstatus(void)
{
if(debugmode)
{
return;
}
_settextposition(25, 2);
_setbkcolor(1);
_settextcolor(15);
_outtext(smsg);
_settextposition(25, 1);
}
static void status(const char *string)
{
strcat(smsg, string);
drawstatus();
}
static void DrawThermo(void)
{
unsigned char *screen;
int progress;
int i;
if (debugmode)
{
return;
}
#if 0
progress = (98*thermCurrent)/thermMax;
screen = (char *)0xb8000 + (THERM_Y*160 + THERM_X*2);
for (i = 0; i < progress/2; i++)
{
switch(i)
{
case 4:
case 9:
case 14:
case 19:
case 29:
case 34:
case 39:
case 44:
*screen++ = 0xb3;
*screen++ = (THERMCOLOR<<4)+15;
break;
case 24:
*screen++ = 0xba;
*screen++ = (THERMCOLOR<<4)+15;
break;
default:
*screen++ = 0xdb;
*screen++ = 0x40 + THERMCOLOR;
break;
}
}
if (progress & 1)
{
*screen++ = 0xdd;
*screen++ = 0x40 + THERMCOLOR;
}
#else
progress = (50*thermCurrent)/thermMax + 2;
// screen = (char *)0xb8000 + (THERM_Y*160 + THERM_X*2);
hgotoxy(THERM_X,THERM_Y);
for (i = 0; i < progress; i++)
{
// *screen++ = 0xdb;
// *screen++ = 0x2a;
hput(0xdb, 0x2a);
}
#endif
}
static void blitStartup(void)
{
byte *textScreen;
if(debugmode)
{
return;
}
// Blit main screen
textScreen = (byte *)0xb8000;
memcpy(textScreen, startup, 4000);
// Print version string
_setbkcolor(4); // Red
_settextcolor(14); // Yellow
_settextposition(3, 47);
_outtext(VERSION_TEXT);
// Hide cursor
_settextcursor(0x2000);
}
void tprintf(const char *msg, int initflag)
{
# if 0
char temp[80];
int i, start, add;
if (debugmode)
{
printf(msg);
return;
}
if (initflag)
tmsg[0] = 0;
strcat(tmsg,msg);
blitStartup();
DrawThermo();
_setbkcolor(4);
_settextcolor(15);
for (add = start = i = 0; i <= strlen(tmsg); i++)
{
if ((tmsg[i] == '\n') || (!tmsg[i]))
{
memset(temp,0,80);
strncpy(temp,tmsg+start,i-start);
_settextposition(MSG_Y+add,40-strlen(temp)/2);
_outtext(temp);
start = i+1;
add++;
}
}
_settextposition(25,1);
drawstatus();
# endif
}
void CheckAbortStartup(void)
{
#if defined(__WATCOMC__) && defined(_DOS)
extern int lastpress;
if (lastpress == 1)
{ // Abort if escape pressed
union REGS regs;
I_ShutdownKeyboard();
regs.x.eax = 0x3;
int386(0x10, ®s, ®s);
printf("Exited from HERETIC.\n");
exit(1);
}
#endif
}
void IncThermo(void)
{
thermCurrent++;
DrawThermo();
CheckAbortStartup();
}
void InitThermo(int max)
{
thermMax = max;
thermCurrent = 0;
}
#else
#define hgotoxy(x,y) do {} while (0)
#define hprintf(s,a) puts((s))
#define status(s) puts((s))
#define DrawThermo() do {} while (0)
void tprintf(const char *msg, int initflag)
{
# if 0
printf(msg);
# endif
}
void CheckAbortStartup(void) {}
void IncThermo(void) {}
void InitThermo(int x) {}
#endif
//---------------------------------------------------------------------------
//
// PROC D_DoomMain
//
//---------------------------------------------------------------------------
void D_DoomMain(void)
{
int p, e, m, i;
char file[MAX_OSPATH];
boolean devMap;
char *slash;
char *wadloc[nelem(wadfiles)];
M_FindResponseFile();
setbuf(stdout, NULL);
nomonsters = M_CheckParm("-nomonsters");
respawnparm = M_CheckParm("-respawn");
ravpic = M_CheckParm("-ravpic");
noartiskip = M_CheckParm("-noartiskip");
debugmode = M_CheckParm("-debug");
startskill = sk_medium;
startepisode = 1;
startmap = 1;
autostart = false;
// wadfiles[0] is a char * to the main wad
if (!I_IdentifyWAD(wadfiles[0]))
{ // Change to look for shareware wad
wadfiles[0] = SHAREWAREWADNAME;
}
// -FILE [filename] [filename] ...
// Add files to the wad list.
p = M_CheckParm("-file");
if (p)
{ // the parms after p are wadfile/lump names, until end of parms
// or another - preceded parm
while (++p != myargc && myargv[p][0] != '-')
{
D_AddFile(myargv[p]);
}
}
// -DEVMAP <episode> <map>
// Adds a map wad from the development directory to the wad list,
// and sets the start episode and the start map.
devMap = false;
p = M_CheckParm("-devmap");
if (p && p < myargc-2)
{
e = myargv[p+1][0];
m = myargv[p+2][0];
snprintf(file, sizeof(file), "%se%cm%c.wad", DEVMAPDIR, e, m);
D_AddFile(file);
printf("DEVMAP: Episode %c, Map %c.\n", e, m);
startepisode = e-'0';
startmap = m-'0';
autostart = true;
devMap = true;
}
p = M_CheckParm("-playdemo");
if (!p)
{
p = M_CheckParm("-timedemo");
}
if (p && p < myargc-1)
{
snprintf(file, sizeof(file), "%s.lmp", myargv[p+1]);
D_AddFile(file);
printf("Playing demo %s.lmp.\n", myargv[p+1]);
}
//
// get skill / episode / map from parms
//
if (M_CheckParm("-deathmatch"))
{
deathmatch = true;
}
p = M_CheckParm("-skill");
if (p && p < myargc-1)
{
startskill = myargv[p+1][0]-'1';
autostart = true;
}
p = M_CheckParm("-episode");
if (p && p < myargc-1)
{
startepisode = myargv[p+1][0]-'0';
startmap = 1;
autostart = true;
}
p = M_CheckParm("-warp");
if (p && p < myargc-2)
{
startepisode = myargv[p+1][0]-'0';
startmap = myargv[p+2][0]-'0';
autostart = true;
}
//
// init subsystems
//
printf("V_Init: allocate screens.\n");
V_Init();
printf("Z_Init: Init zone memory allocation daemon.\n");
Z_Init();
for(i = 0; i < nelem(wadfiles); i++){
if(wadfiles[i] == nil){
wadloc[i] = nil;
break;
} else
wadloc[i] = I_IdentifyWAD(wadfiles[i]);
print("%s %s\n", wadfiles[i], wadloc[i]);
}
printf("W_Init: Init WADfiles.\n");
W_InitMultipleFiles(wadloc);
strcpy(basedefault, wadloc[0]);
slash = strrchr(basedefault, '/');
if (!slash)
basedefault[0] = '\0';
else
slash[1] = '\0';
basePath = basedefault;
if (W_CheckNumForName("E2M1") == -1)
{ // Can't find episode 2 maps, must be the shareware WAD
shareware = true;
}
else if (W_CheckNumForName("EXTENDED") != -1)
{ // Found extended lump, must be the extended WAD
ExtendedWAD = true;
}
// Load defaults before initing other systems
printf("M_LoadDefaults: Load system defaults.\n");
M_LoadDefaults("cfg");
#if defined(__WATCOMC__) && defined(_DOS)
I_StartupKeyboard();
I_StartupJoystick();
startup = (char *) W_CacheLumpName("LOADING", PU_CACHE);
blitStartup();
// Build status bar line!
smsg[0] = 0;
#endif
if (deathmatch)
status("DeathMatch...");
if (nomonsters)
status("No Monsters...");
if (respawnparm)
status("Respawning...");
if (autostart)
{
char temp[64];
snprintf(temp, sizeof(temp), "Warp to Episode %d, Map %d, Skill %d ",
startepisode, startmap, startskill + 1);
status(temp);
}
tprintf("MN_Init: Init menu system.\n",1);
MN_Init();
CT_Init();
tprintf("R_Init: Init Heretic refresh daemon.",1);
hgotoxy(17,7);
hprintf("Loading graphics",0x3f);
R_Init();
tprintf("P_Init: Init Playloop state.",1);
hgotoxy(17,8);
hprintf("Init game engine.",0x3f);
P_Init();
IncThermo();
tprintf("I_Init: Setting up machine state.\n",1);
I_Init();
IncThermo();
tprintf("D_CheckNetGame: Checking network game status.\n",1);
hgotoxy(17,9);
hprintf("Checking network game status.", 0x3f);
D_CheckNetGame();
IncThermo();
#if defined(__WATCOMC__) && defined(_DOS)
I_CheckExternDriver(); // Check for an external device driver
#endif
tprintf("SB_Init: Loading patches.\n",1);
SB_Init();
IncThermo();
//
// start the apropriate game based on parms
//
D_CheckRecordFrom();
p = M_CheckParm("-record");
if (p && p < myargc-1)
{
G_RecordDemo(startskill, 1, startepisode, startmap, myargv[p+1]);
D_DoomLoop(); // Never returns
}
p = M_CheckParm("-playdemo");
if (p && p < myargc-1)
{
singledemo = true; // Quit after one demo
G_DeferedPlayDemo(myargv[p+1]);
D_DoomLoop(); // Never returns
}
p = M_CheckParm("-timedemo");
if (p && p < myargc-1)
{
G_TimeDemo(myargv[p+1]);
D_DoomLoop(); // Never returns
}
p = M_CheckParm("-loadgame");
if (p && p < myargc-1)
{
G_LoadGame(atoi(myargv[p+1]));
}
// Check valid episode and map
if ((autostart || netgame) && (devMap == false))
{
if (M_ValidEpisodeMap(startepisode, startmap) == false)
{
startepisode = 1;
startmap = 1;
}
}
if (gameaction != ga_loadgame)
{
UpdateState |= I_FULLSCRN;
BorderNeedRefresh = true;
if (autostart || netgame)
{
G_InitNew(startskill, startepisode, startmap);
}
else
{
D_StartTitle();
}
}
#if defined(__WATCOMC__) && defined(_DOS)
_settextcursor(0x0607); // bring the cursor back
#endif
D_DoomLoop(); // Never returns
}