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+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// $Id: g_game.c 4 2005-07-23 16:19:41Z fraggle $
+//
+// Copyright (C) 1993-1996 by id Software, Inc.
+//
+// This source is available for distribution and/or modification
+// only under the terms of the DOOM Source Code License as
+// published by id Software. All rights reserved.
+//
+// The source is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
+// for more details.
+//
+// $Log$
+// Revision 1.1 2005/07/23 16:20:11 fraggle
+// Initial revision
+//
+//
+// DESCRIPTION: none
+//
+//-----------------------------------------------------------------------------
+
+
+static const char
+rcsid[] = "$Id: g_game.c 4 2005-07-23 16:19:41Z fraggle $";
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "doomdef.h"
+#include "doomstat.h"
+
+#include "z_zone.h"
+#include "f_finale.h"
+#include "m_argv.h"
+#include "m_misc.h"
+#include "m_menu.h"
+#include "m_random.h"
+#include "i_system.h"
+
+#include "p_setup.h"
+#include "p_saveg.h"
+#include "p_tick.h"
+
+#include "d_main.h"
+
+#include "wi_stuff.h"
+#include "hu_stuff.h"
+#include "st_stuff.h"
+#include "am_map.h"
+
+// Needs access to LFB.
+#include "v_video.h"
+
+#include "w_wad.h"
+
+#include "p_local.h"
+
+#include "s_sound.h"
+
+// Data.
+#include "dstrings.h"
+#include "sounds.h"
+
+// SKY handling - still the wrong place.
+#include "r_data.h"
+#include "r_sky.h"
+
+
+
+#include "g_game.h"
+
+
+#define SAVEGAMESIZE 0x2c000
+#define SAVESTRINGSIZE 24
+
+
+
+boolean G_CheckDemoStatus (void);
+void G_ReadDemoTiccmd (ticcmd_t* cmd);
+void G_WriteDemoTiccmd (ticcmd_t* cmd);
+void G_PlayerReborn (int player);
+void G_InitNew (skill_t skill, int episode, int map);
+
+void G_DoReborn (int playernum);
+
+void G_DoLoadLevel (void);
+void G_DoNewGame (void);
+void G_DoLoadGame (void);
+void G_DoPlayDemo (void);
+void G_DoCompleted (void);
+void G_DoVictory (void);
+void G_DoWorldDone (void);
+void G_DoSaveGame (void);
+
+
+gameaction_t gameaction;
+gamestate_t gamestate;
+skill_t gameskill;
+boolean respawnmonsters;
+int gameepisode;
+int gamemap;
+
+boolean paused;
+boolean sendpause; // send a pause event next tic
+boolean sendsave; // send a save event next tic
+boolean usergame; // ok to save / end game
+
+boolean timingdemo; // if true, exit with report on completion
+boolean nodrawers; // for comparative timing purposes
+boolean noblit; // for comparative timing purposes
+int starttime; // for comparative timing purposes
+
+boolean viewactive;
+
+boolean deathmatch; // only if started as net death
+boolean netgame; // only true if packets are broadcast
+boolean playeringame[MAXPLAYERS];
+player_t players[MAXPLAYERS];
+
+int consoleplayer; // player taking events and displaying
+int displayplayer; // view being displayed
+int gametic;
+int levelstarttic; // gametic at level start
+int totalkills, totalitems, totalsecret; // for intermission
+
+char demoname[32];
+boolean demorecording;
+boolean demoplayback;
+boolean netdemo;
+byte* demobuffer;
+byte* demo_p;
+byte* demoend;
+boolean singledemo; // quit after playing a demo from cmdline
+
+boolean precache = true; // if true, load all graphics at start
+
+wbstartstruct_t wminfo; // parms for world map / intermission
+
+short consistancy[MAXPLAYERS][BACKUPTICS];
+
+byte* savebuffer;
+
+
+//
+// controls (have defaults)
+//
+int key_right;
+int key_left;
+
+int key_up;
+int key_down;
+int key_strafeleft;
+int key_straferight;
+int key_fire;
+int key_use;
+int key_strafe;
+int key_speed;
+
+int mousebfire;
+int mousebstrafe;
+int mousebforward;
+
+int joybfire;
+int joybstrafe;
+int joybuse;
+int joybspeed;
+
+
+
+#define MAXPLMOVE (forwardmove[1])
+
+#define TURBOTHRESHOLD 0x32
+
+fixed_t forwardmove[2] = {0x19, 0x32};
+fixed_t sidemove[2] = {0x18, 0x28};
+fixed_t angleturn[3] = {640, 1280, 320}; // + slow turn
+
+#define SLOWTURNTICS 6
+
+#define NUMKEYS 256
+
+boolean gamekeydown[NUMKEYS];
+int turnheld; // for accelerative turning
+
+boolean mousearray[4];
+boolean* mousebuttons = &mousearray[1]; // allow [-1]
+
+// mouse values are used once
+int mousex;
+int mousey;
+
+int dclicktime;
+int dclickstate;
+int dclicks;
+int dclicktime2;
+int dclickstate2;
+int dclicks2;
+
+// joystick values are repeated
+int joyxmove;
+int joyymove;
+boolean joyarray[5];
+boolean* joybuttons = &joyarray[1]; // allow [-1]
+
+int savegameslot;
+char savedescription[32];
+
+
+#define BODYQUESIZE 32
+
+mobj_t* bodyque[BODYQUESIZE];
+int bodyqueslot;
+
+void* statcopy; // for statistics driver
+
+
+
+int G_CmdChecksum (ticcmd_t* cmd)
+{
+ int i;
+ int sum = 0;
+
+ for (i=0 ; i< sizeof(*cmd)/4 - 1 ; i++)
+ sum += ((int *)cmd)[i];
+
+ return sum;
+}
+
+
+//
+// G_BuildTiccmd
+// Builds a ticcmd from all of the available inputs
+// or reads it from the demo buffer.
+// If recording a demo, write it out
+//
+void G_BuildTiccmd (ticcmd_t* cmd)
+{
+ int i;
+ boolean strafe;
+ boolean bstrafe;
+ int speed;
+ int tspeed;
+ int forward;
+ int side;
+
+ ticcmd_t* base;
+
+ base = I_BaseTiccmd (); // empty, or external driver
+ memcpy (cmd,base,sizeof(*cmd));
+
+ cmd->consistancy =
+ consistancy[consoleplayer][maketic%BACKUPTICS];
+
+
+ strafe = gamekeydown[key_strafe] || mousebuttons[mousebstrafe]
+ || joybuttons[joybstrafe];
+ speed = gamekeydown[key_speed] || joybuttons[joybspeed];
+
+ forward = side = 0;
+
+ // use two stage accelerative turning
+ // on the keyboard and joystick
+ if (joyxmove < 0
+ || joyxmove > 0
+ || gamekeydown[key_right]
+ || gamekeydown[key_left])
+ turnheld += ticdup;
+ else
+ turnheld = 0;
+
+ if (turnheld < SLOWTURNTICS)
+ tspeed = 2; // slow turn
+ else
+ tspeed = speed;
+
+ // let movement keys cancel each other out
+ if (strafe)
+ {
+ if (gamekeydown[key_right])
+ {
+ // fprintf(stderr, "strafe right\n");
+ side += sidemove[speed];
+ }
+ if (gamekeydown[key_left])
+ {
+ // fprintf(stderr, "strafe left\n");
+ side -= sidemove[speed];
+ }
+ if (joyxmove > 0)
+ side += sidemove[speed];
+ if (joyxmove < 0)
+ side -= sidemove[speed];
+
+ }
+ else
+ {
+ if (gamekeydown[key_right])
+ cmd->angleturn -= angleturn[tspeed];
+ if (gamekeydown[key_left])
+ cmd->angleturn += angleturn[tspeed];
+ if (joyxmove > 0)
+ cmd->angleturn -= angleturn[tspeed];
+ if (joyxmove < 0)
+ cmd->angleturn += angleturn[tspeed];
+ }
+
+ if (gamekeydown[key_up])
+ {
+ // fprintf(stderr, "up\n");
+ forward += forwardmove[speed];
+ }
+ if (gamekeydown[key_down])
+ {
+ // fprintf(stderr, "down\n");
+ forward -= forwardmove[speed];
+ }
+ if (joyymove < 0)
+ forward += forwardmove[speed];
+ if (joyymove > 0)
+ forward -= forwardmove[speed];
+ if (gamekeydown[key_straferight])
+ side += sidemove[speed];
+ if (gamekeydown[key_strafeleft])
+ side -= sidemove[speed];
+
+ // buttons
+ cmd->chatchar = HU_dequeueChatChar();
+
+ if (gamekeydown[key_fire] || mousebuttons[mousebfire]
+ || joybuttons[joybfire])
+ cmd->buttons |= BT_ATTACK;
+
+ if (gamekeydown[key_use] || joybuttons[joybuse] )
+ {
+ cmd->buttons |= BT_USE;
+ // clear double clicks if hit use button
+ dclicks = 0;
+ }
+
+ // chainsaw overrides
+ for (i=0 ; i<NUMWEAPONS-1 ; i++)
+ if (gamekeydown['1'+i])
+ {
+ cmd->buttons |= BT_CHANGE;
+ cmd->buttons |= i<<BT_WEAPONSHIFT;
+ break;
+ }
+
+ // mouse
+ if (mousebuttons[mousebforward])
+ forward += forwardmove[speed];
+
+ // forward double click
+ if (mousebuttons[mousebforward] != dclickstate && dclicktime > 1 )
+ {
+ dclickstate = mousebuttons[mousebforward];
+ if (dclickstate)
+ dclicks++;
+ if (dclicks == 2)
+ {
+ cmd->buttons |= BT_USE;
+ dclicks = 0;
+ }
+ else
+ dclicktime = 0;
+ }
+ else
+ {
+ dclicktime += ticdup;
+ if (dclicktime > 20)
+ {
+ dclicks = 0;
+ dclickstate = 0;
+ }
+ }
+
+ // strafe double click
+ bstrafe =
+ mousebuttons[mousebstrafe]
+ || joybuttons[joybstrafe];
+ if (bstrafe != dclickstate2 && dclicktime2 > 1 )
+ {
+ dclickstate2 = bstrafe;
+ if (dclickstate2)
+ dclicks2++;
+ if (dclicks2 == 2)
+ {
+ cmd->buttons |= BT_USE;
+ dclicks2 = 0;
+ }
+ else
+ dclicktime2 = 0;
+ }
+ else
+ {
+ dclicktime2 += ticdup;
+ if (dclicktime2 > 20)
+ {
+ dclicks2 = 0;
+ dclickstate2 = 0;
+ }
+ }
+
+ forward += mousey;
+ if (strafe)
+ side += mousex*2;
+ else
+ cmd->angleturn -= mousex*0x8;
+
+ mousex = mousey = 0;
+
+ if (forward > MAXPLMOVE)
+ forward = MAXPLMOVE;
+ else if (forward < -MAXPLMOVE)
+ forward = -MAXPLMOVE;
+ if (side > MAXPLMOVE)
+ side = MAXPLMOVE;
+ else if (side < -MAXPLMOVE)
+ side = -MAXPLMOVE;
+
+ cmd->forwardmove += forward;
+ cmd->sidemove += side;
+
+ // special buttons
+ if (sendpause)
+ {
+ sendpause = false;
+ cmd->buttons = BT_SPECIAL | BTS_PAUSE;
+ }
+
+ if (sendsave)
+ {
+ sendsave = false;
+ cmd->buttons = BT_SPECIAL | BTS_SAVEGAME | (savegameslot<<BTS_SAVESHIFT);
+ }
+}
+
+
+//
+// G_DoLoadLevel
+//
+extern gamestate_t wipegamestate;
+
+void G_DoLoadLevel (void)
+{
+ int i;
+
+ // Set the sky map.
+ // First thing, we have a dummy sky texture name,
+ // a flat. The data is in the WAD only because
+ // we look for an actual index, instead of simply
+ // setting one.
+ skyflatnum = R_FlatNumForName ( SKYFLATNAME );
+
+ // DOOM determines the sky texture to be used
+ // depending on the current episode, and the game version.
+ if ( (gamemode == commercial)
+ || ( gamemode == pack_tnt )
+ || ( gamemode == pack_plut ) )
+ {
+ skytexture = R_TextureNumForName ("SKY3");
+ if (gamemap < 12)
+ skytexture = R_TextureNumForName ("SKY1");
+ else
+ if (gamemap < 21)
+ skytexture = R_TextureNumForName ("SKY2");
+ }
+
+ levelstarttic = gametic; // for time calculation
+
+ if (wipegamestate == GS_LEVEL)
+ wipegamestate = -1; // force a wipe
+
+ gamestate = GS_LEVEL;
+
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ {
+ if (playeringame[i] && players[i].playerstate == PST_DEAD)
+ players[i].playerstate = PST_REBORN;
+ memset (players[i].frags,0,sizeof(players[i].frags));
+ }
+
+ P_SetupLevel (gameepisode, gamemap, 0, gameskill);
+ displayplayer = consoleplayer; // view the guy you are playing
+ starttime = I_GetTime ();
+ gameaction = ga_nothing;
+ Z_CheckHeap ();
+
+ // clear cmd building stuff
+ memset (gamekeydown, 0, sizeof(gamekeydown));
+ joyxmove = joyymove = 0;
+ mousex = mousey = 0;
+ sendpause = sendsave = paused = false;
+ memset (mousebuttons, 0, sizeof(mousebuttons));
+ memset (joybuttons, 0, sizeof(joybuttons));
+}
+
+
+//
+// G_Responder
+// Get info needed to make ticcmd_ts for the players.
+//
+boolean G_Responder (event_t* ev)
+{
+ // allow spy mode changes even during the demo
+ if (gamestate == GS_LEVEL && ev->type == ev_keydown
+ && ev->data1 == KEY_F12 && (singledemo || !deathmatch) )
+ {
+ // spy mode
+ do
+ {
+ displayplayer++;
+ if (displayplayer == MAXPLAYERS)
+ displayplayer = 0;
+ } while (!playeringame[displayplayer] && displayplayer != consoleplayer);
+ return true;
+ }
+
+ // any other key pops up menu if in demos
+ if (gameaction == ga_nothing && !singledemo &&
+ (demoplayback || gamestate == GS_DEMOSCREEN)
+ )
+ {
+ if (ev->type == ev_keydown ||
+ (ev->type == ev_mouse && ev->data1) ||
+ (ev->type == ev_joystick && ev->data1) )
+ {
+ M_StartControlPanel ();
+ return true;
+ }
+ return false;
+ }
+
+ if (gamestate == GS_LEVEL)
+ {
+#if 0
+ if (devparm && ev->type == ev_keydown && ev->data1 == ';')
+ {
+ G_DeathMatchSpawnPlayer (0);
+ return true;
+ }
+#endif
+ if (HU_Responder (ev))
+ return true; // chat ate the event
+ if (ST_Responder (ev))
+ return true; // status window ate it
+ if (AM_Responder (ev))
+ return true; // automap ate it
+ }
+
+ if (gamestate == GS_FINALE)
+ {
+ if (F_Responder (ev))
+ return true; // finale ate the event
+ }
+
+ switch (ev->type)
+ {
+ case ev_keydown:
+ if (ev->data1 == KEY_PAUSE)
+ {
+ sendpause = true;
+ return true;
+ }
+ if (ev->data1 <NUMKEYS)
+ gamekeydown[ev->data1] = true;
+ return true; // eat key down events
+
+ case ev_keyup:
+ if (ev->data1 <NUMKEYS)
+ gamekeydown[ev->data1] = false;
+ return false; // always let key up events filter down
+
+ case ev_mouse:
+ mousebuttons[0] = ev->data1 & 1;
+ mousebuttons[1] = ev->data1 & 2;
+ mousebuttons[2] = ev->data1 & 4;
+ mousex = ev->data2*(mouseSensitivity+5)/10;
+ mousey = ev->data3*(mouseSensitivity+5)/10;
+ return true; // eat events
+
+ case ev_joystick:
+ joybuttons[0] = ev->data1 & 1;
+ joybuttons[1] = ev->data1 & 2;
+ joybuttons[2] = ev->data1 & 4;
+ joybuttons[3] = ev->data1 & 8;
+ joyxmove = ev->data2;
+ joyymove = ev->data3;
+ return true; // eat events
+
+ default:
+ break;
+ }
+
+ return false;
+}
+
+
+
+//
+// G_Ticker
+// Make ticcmd_ts for the players.
+//
+void G_Ticker (void)
+{
+ int i;
+ int buf;
+ ticcmd_t* cmd;
+
+ // do player reborns if needed
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ if (playeringame[i] && players[i].playerstate == PST_REBORN)
+ G_DoReborn (i);
+
+ // do things to change the game state
+ while (gameaction != ga_nothing)
+ {
+ switch (gameaction)
+ {
+ case ga_loadlevel:
+ G_DoLoadLevel ();
+ break;
+ case ga_newgame:
+ G_DoNewGame ();
+ break;
+ case ga_loadgame:
+ G_DoLoadGame ();
+ break;
+ case ga_savegame:
+ G_DoSaveGame ();
+ break;
+ case ga_playdemo:
+ G_DoPlayDemo ();
+ break;
+ case ga_completed:
+ G_DoCompleted ();
+ break;
+ case ga_victory:
+ F_StartFinale ();
+ break;
+ case ga_worlddone:
+ G_DoWorldDone ();
+ break;
+ case ga_screenshot:
+ M_ScreenShot ();
+ gameaction = ga_nothing;
+ break;
+ case ga_nothing:
+ break;
+ }
+ }
+
+ // get commands, check consistancy,
+ // and build new consistancy check
+ buf = (gametic/ticdup)%BACKUPTICS;
+
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ {
+ if (playeringame[i])
+ {
+ cmd = &players[i].cmd;
+
+ memcpy (cmd, &netcmds[i][buf], sizeof(ticcmd_t));
+
+ if (demoplayback)
+ G_ReadDemoTiccmd (cmd);
+ if (demorecording)
+ G_WriteDemoTiccmd (cmd);
+
+ // check for turbo cheats
+ if (cmd->forwardmove > TURBOTHRESHOLD
+ && !(gametic&31) && ((gametic>>5)&3) == i )
+ {
+ static char turbomessage[80];
+ extern char *player_names[4];
+ sprintf (turbomessage, "%s is turbo!",player_names[i]);
+ players[consoleplayer].message = turbomessage;
+ }
+
+ if (netgame && !netdemo && !(gametic%ticdup) )
+ {
+ if (gametic > BACKUPTICS
+ && consistancy[i][buf] != cmd->consistancy)
+ {
+ I_Error ("consistency failure (%i should be %i)",
+ cmd->consistancy, consistancy[i][buf]);
+ }
+ if (players[i].mo)
+ consistancy[i][buf] = players[i].mo->x;
+ else
+ consistancy[i][buf] = rndindex;
+ }
+ }
+ }
+
+ // check for special buttons
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ {
+ if (playeringame[i])
+ {
+ if (players[i].cmd.buttons & BT_SPECIAL)
+ {
+ switch (players[i].cmd.buttons & BT_SPECIALMASK)
+ {
+ case BTS_PAUSE:
+ paused ^= 1;
+ if (paused)
+ S_PauseSound ();
+ else
+ S_ResumeSound ();
+ break;
+
+ case BTS_SAVEGAME:
+ if (!savedescription[0])
+ strcpy (savedescription, "NET GAME");
+ savegameslot =
+ (players[i].cmd.buttons & BTS_SAVEMASK)>>BTS_SAVESHIFT;
+ gameaction = ga_savegame;
+ break;
+ }
+ }
+ }
+ }
+
+ // do main actions
+ switch (gamestate)
+ {
+ case GS_LEVEL:
+ P_Ticker ();
+ ST_Ticker ();
+ AM_Ticker ();
+ HU_Ticker ();
+ break;
+
+ case GS_INTERMISSION:
+ WI_Ticker ();
+ break;
+
+ case GS_FINALE:
+ F_Ticker ();
+ break;
+
+ case GS_DEMOSCREEN:
+ D_PageTicker ();
+ break;
+ }
+}
+
+
+//
+// PLAYER STRUCTURE FUNCTIONS
+// also see P_SpawnPlayer in P_Things
+//
+
+//
+// G_InitPlayer
+// Called at the start.
+// Called by the game initialization functions.
+//
+void G_InitPlayer (int player)
+{
+ player_t* p;
+
+ // set up the saved info
+ p = &players[player];
+
+ // clear everything else to defaults
+ G_PlayerReborn (player);
+
+}
+
+
+
+//
+// G_PlayerFinishLevel
+// Can when a player completes a level.
+//
+void G_PlayerFinishLevel (int player)
+{
+ player_t* p;
+
+ p = &players[player];
+
+ memset (p->powers, 0, sizeof (p->powers));
+ memset (p->cards, 0, sizeof (p->cards));
+ p->mo->flags &= ~MF_SHADOW; // cancel invisibility
+ p->extralight = 0; // cancel gun flashes
+ p->fixedcolormap = 0; // cancel ir gogles
+ p->damagecount = 0; // no palette changes
+ p->bonuscount = 0;
+}
+
+
+//
+// G_PlayerReborn
+// Called after a player dies
+// almost everything is cleared and initialized
+//
+void G_PlayerReborn (int player)
+{
+ player_t* p;
+ int i;
+ int frags[MAXPLAYERS];
+ int killcount;
+ int itemcount;
+ int secretcount;
+
+ memcpy (frags,players[player].frags,sizeof(frags));
+ killcount = players[player].killcount;
+ itemcount = players[player].itemcount;
+ secretcount = players[player].secretcount;
+
+ p = &players[player];
+ memset (p, 0, sizeof(*p));
+
+ memcpy (players[player].frags, frags, sizeof(players[player].frags));
+ players[player].killcount = killcount;
+ players[player].itemcount = itemcount;
+ players[player].secretcount = secretcount;
+
+ p->usedown = p->attackdown = true; // don't do anything immediately
+ p->playerstate = PST_LIVE;
+ p->health = MAXHEALTH;
+ p->readyweapon = p->pendingweapon = wp_pistol;
+ p->weaponowned[wp_fist] = true;
+ p->weaponowned[wp_pistol] = true;
+ p->ammo[am_clip] = 50;
+
+ for (i=0 ; i<NUMAMMO ; i++)
+ p->maxammo[i] = maxammo[i];
+
+}
+
+//
+// G_CheckSpot
+// Returns false if the player cannot be respawned
+// at the given mapthing_t spot
+// because something is occupying it
+//
+void P_SpawnPlayer (mapthing_t* mthing);
+
+boolean
+G_CheckSpot
+( int playernum,
+ mapthing_t* mthing )
+{
+ fixed_t x;
+ fixed_t y;
+ subsector_t* ss;
+ unsigned an;
+ mobj_t* mo;
+ int i;
+
+ if (!players[playernum].mo)
+ {
+ // first spawn of level, before corpses
+ for (i=0 ; i<playernum ; i++)
+ if (players[i].mo->x == mthing->x << FRACBITS
+ && players[i].mo->y == mthing->y << FRACBITS)
+ return false;
+ return true;
+ }
+
+ x = mthing->x << FRACBITS;
+ y = mthing->y << FRACBITS;
+
+ if (!P_CheckPosition (players[playernum].mo, x, y) )
+ return false;
+
+ // flush an old corpse if needed
+ if (bodyqueslot >= BODYQUESIZE)
+ P_RemoveMobj (bodyque[bodyqueslot%BODYQUESIZE]);
+ bodyque[bodyqueslot%BODYQUESIZE] = players[playernum].mo;
+ bodyqueslot++;
+
+ // spawn a teleport fog
+ ss = R_PointInSubsector (x,y);
+ an = ( ANG45 * (mthing->angle/45) ) >> ANGLETOFINESHIFT;
+
+ mo = P_SpawnMobj (x+20*finecosine[an], y+20*finesine[an]
+ , ss->sector->floorheight
+ , MT_TFOG);
+
+ if (players[consoleplayer].viewz != 1)
+ S_StartSound (mo, sfx_telept); // don't start sound on first frame
+
+ return true;
+}
+
+
+//
+// G_DeathMatchSpawnPlayer
+// Spawns a player at one of the random death match spots
+// called at level load and each death
+//
+void G_DeathMatchSpawnPlayer (int playernum)
+{
+ int i,j;
+ int selections;
+
+ selections = deathmatch_p - deathmatchstarts;
+ if (selections < 4)
+ I_Error ("Only %i deathmatch spots, 4 required", selections);
+
+ for (j=0 ; j<20 ; j++)
+ {
+ i = P_Random() % selections;
+ if (G_CheckSpot (playernum, &deathmatchstarts[i]) )
+ {
+ deathmatchstarts[i].type = playernum+1;
+ P_SpawnPlayer (&deathmatchstarts[i]);
+ return;
+ }
+ }
+
+ // no good spot, so the player will probably get stuck
+ P_SpawnPlayer (&playerstarts[playernum]);
+}
+
+//
+// G_DoReborn
+//
+void G_DoReborn (int playernum)
+{
+ int i;
+
+ if (!netgame)
+ {
+ // reload the level from scratch
+ gameaction = ga_loadlevel;
+ }
+ else
+ {
+ // respawn at the start
+
+ // first dissasociate the corpse
+ players[playernum].mo->player = NULL;
+
+ // spawn at random spot if in death match
+ if (deathmatch)
+ {
+ G_DeathMatchSpawnPlayer (playernum);
+ return;
+ }
+
+ if (G_CheckSpot (playernum, &playerstarts[playernum]) )
+ {
+ P_SpawnPlayer (&playerstarts[playernum]);
+ return;
+ }
+
+ // try to spawn at one of the other players spots
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ {
+ if (G_CheckSpot (playernum, &playerstarts[i]) )
+ {
+ playerstarts[i].type = playernum+1; // fake as other player
+ P_SpawnPlayer (&playerstarts[i]);
+ playerstarts[i].type = i+1; // restore
+ return;
+ }
+ // he's going to be inside something. Too bad.
+ }
+ P_SpawnPlayer (&playerstarts[playernum]);
+ }
+}
+
+
+void G_ScreenShot (void)
+{
+ gameaction = ga_screenshot;
+}
+
+
+
+// DOOM Par Times
+int pars[4][10] =
+{
+ {0},
+ {0,30,75,120,90,165,180,180,30,165},
+ {0,90,90,90,120,90,360,240,30,170},
+ {0,90,45,90,150,90,90,165,30,135}
+};
+
+// DOOM II Par Times
+int cpars[32] =
+{
+ 30,90,120,120,90,150,120,120,270,90, // 1-10
+ 210,150,150,150,210,150,420,150,210,150, // 11-20
+ 240,150,180,150,150,300,330,420,300,180, // 21-30
+ 120,30 // 31-32
+};
+
+
+//
+// G_DoCompleted
+//
+boolean secretexit;
+extern char* pagename;
+
+void G_ExitLevel (void)
+{
+ secretexit = false;
+ gameaction = ga_completed;
+}
+
+// Here's for the german edition.
+void G_SecretExitLevel (void)
+{
+ // IF NO WOLF3D LEVELS, NO SECRET EXIT!
+ if ( (gamemode == commercial)
+ && (W_CheckNumForName("map31")<0))
+ secretexit = false;
+ else
+ secretexit = true;
+ gameaction = ga_completed;
+}
+
+void G_DoCompleted (void)
+{
+ int i;
+
+ gameaction = ga_nothing;
+
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ if (playeringame[i])
+ G_PlayerFinishLevel (i); // take away cards and stuff
+
+ if (automapactive)
+ AM_Stop ();
+
+ if ( gamemode != commercial)
+ switch(gamemap)
+ {
+ case 8:
+ gameaction = ga_victory;
+ return;
+ case 9:
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ players[i].didsecret = true;
+ break;
+ }
+
+//#if 0 Hmmm - why?
+ if ( (gamemap == 8)
+ && (gamemode != commercial) )
+ {
+ // victory
+ gameaction = ga_victory;
+ return;
+ }
+
+ if ( (gamemap == 9)
+ && (gamemode != commercial) )
+ {
+ // exit secret level
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ players[i].didsecret = true;
+ }
+//#endif
+
+
+ wminfo.didsecret = players[consoleplayer].didsecret;
+ wminfo.epsd = gameepisode -1;
+ wminfo.last = gamemap -1;
+
+ // wminfo.next is 0 biased, unlike gamemap
+ if ( gamemode == commercial)
+ {
+ if (secretexit)
+ switch(gamemap)
+ {
+ case 15: wminfo.next = 30; break;
+ case 31: wminfo.next = 31; break;
+ }
+ else
+ switch(gamemap)
+ {
+ case 31:
+ case 32: wminfo.next = 15; break;
+ default: wminfo.next = gamemap;
+ }
+ }
+ else
+ {
+ if (secretexit)
+ wminfo.next = 8; // go to secret level
+ else if (gamemap == 9)
+ {
+ // returning from secret level
+ switch (gameepisode)
+ {
+ case 1:
+ wminfo.next = 3;
+ break;
+ case 2:
+ wminfo.next = 5;
+ break;
+ case 3:
+ wminfo.next = 6;
+ break;
+ case 4:
+ wminfo.next = 2;
+ break;
+ }
+ }
+ else
+ wminfo.next = gamemap; // go to next level
+ }
+
+ wminfo.maxkills = totalkills;
+ wminfo.maxitems = totalitems;
+ wminfo.maxsecret = totalsecret;
+ wminfo.maxfrags = 0;
+ if ( gamemode == commercial )
+ wminfo.partime = 35*cpars[gamemap-1];
+ else
+ wminfo.partime = 35*pars[gameepisode][gamemap];
+ wminfo.pnum = consoleplayer;
+
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ {
+ wminfo.plyr[i].in = playeringame[i];
+ wminfo.plyr[i].skills = players[i].killcount;
+ wminfo.plyr[i].sitems = players[i].itemcount;
+ wminfo.plyr[i].ssecret = players[i].secretcount;
+ wminfo.plyr[i].stime = leveltime;
+ memcpy (wminfo.plyr[i].frags, players[i].frags
+ , sizeof(wminfo.plyr[i].frags));
+ }
+
+ gamestate = GS_INTERMISSION;
+ viewactive = false;
+ automapactive = false;
+
+ if (statcopy)
+ memcpy (statcopy, &wminfo, sizeof(wminfo));
+
+ WI_Start (&wminfo);
+}
+
+
+//
+// G_WorldDone
+//
+void G_WorldDone (void)
+{
+ gameaction = ga_worlddone;
+
+ if (secretexit)
+ players[consoleplayer].didsecret = true;
+
+ if ( gamemode == commercial )
+ {
+ switch (gamemap)
+ {
+ case 15:
+ case 31:
+ if (!secretexit)
+ break;
+ case 6:
+ case 11:
+ case 20:
+ case 30:
+ F_StartFinale ();
+ break;
+ }
+ }
+}
+
+void G_DoWorldDone (void)
+{
+ gamestate = GS_LEVEL;
+ gamemap = wminfo.next+1;
+ G_DoLoadLevel ();
+ gameaction = ga_nothing;
+ viewactive = true;
+}
+
+
+
+//
+// G_InitFromSavegame
+// Can be called by the startup code or the menu task.
+//
+extern boolean setsizeneeded;
+void R_ExecuteSetViewSize (void);
+
+char savename[256];
+
+void G_LoadGame (char* name)
+{
+ strcpy (savename, name);
+ gameaction = ga_loadgame;
+}
+
+#define VERSIONSIZE 16
+
+
+void G_DoLoadGame (void)
+{
+ int length;
+ int i;
+ int a,b,c;
+ char vcheck[VERSIONSIZE];
+
+ gameaction = ga_nothing;
+
+ length = M_ReadFile (savename, &savebuffer);
+ save_p = savebuffer + SAVESTRINGSIZE;
+
+ // skip the description field
+ memset (vcheck,0,sizeof(vcheck));
+ sprintf (vcheck,"version %i",VERSION);
+ if (strcmp (save_p, vcheck))
+ return; // bad version
+ save_p += VERSIONSIZE;
+
+ gameskill = *save_p++;
+ gameepisode = *save_p++;
+ gamemap = *save_p++;
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ playeringame[i] = *save_p++;
+
+ // load a base level
+ G_InitNew (gameskill, gameepisode, gamemap);
+
+ // get the times
+ a = *save_p++;
+ b = *save_p++;
+ c = *save_p++;
+ leveltime = (a<<16) + (b<<8) + c;
+
+ // dearchive all the modifications
+ P_UnArchivePlayers ();
+ P_UnArchiveWorld ();
+ P_UnArchiveThinkers ();
+ P_UnArchiveSpecials ();
+
+ if (*save_p != 0x1d)
+ I_Error ("Bad savegame");
+
+ // done
+ Z_Free (savebuffer);
+
+ if (setsizeneeded)
+ R_ExecuteSetViewSize ();
+
+ // draw the pattern into the back screen
+ R_FillBackScreen ();
+}
+
+
+//
+// G_SaveGame
+// Called by the menu task.
+// Description is a 24 byte text string
+//
+void
+G_SaveGame
+( int slot,
+ char* description )
+{
+ savegameslot = slot;
+ strcpy (savedescription, description);
+ sendsave = true;
+}
+
+void G_DoSaveGame (void)
+{
+ char name[100];
+ char name2[VERSIONSIZE];
+ char* description;
+ int length;
+ int i;
+
+ if (M_CheckParm("-cdrom"))
+ sprintf(name,"c:\\doomdata\\"SAVEGAMENAME"%d.dsg",savegameslot);
+ else
+ sprintf (name,SAVEGAMENAME"%d.dsg",savegameslot);
+ description = savedescription;
+
+ save_p = savebuffer = screens[1]+0x4000;
+
+ memcpy (save_p, description, SAVESTRINGSIZE);
+ save_p += SAVESTRINGSIZE;
+ memset (name2,0,sizeof(name2));
+ sprintf (name2,"version %i",VERSION);
+ memcpy (save_p, name2, VERSIONSIZE);
+ save_p += VERSIONSIZE;
+
+ *save_p++ = gameskill;
+ *save_p++ = gameepisode;
+ *save_p++ = gamemap;
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ *save_p++ = playeringame[i];
+ *save_p++ = leveltime>>16;
+ *save_p++ = leveltime>>8;
+ *save_p++ = leveltime;
+
+ P_ArchivePlayers ();
+ P_ArchiveWorld ();
+ P_ArchiveThinkers ();
+ P_ArchiveSpecials ();
+
+ *save_p++ = 0x1d; // consistancy marker
+
+ length = save_p - savebuffer;
+ if (length > SAVEGAMESIZE)
+ I_Error ("Savegame buffer overrun");
+ M_WriteFile (name, savebuffer, length);
+ gameaction = ga_nothing;
+ savedescription[0] = 0;
+
+ players[consoleplayer].message = GGSAVED;
+
+ // draw the pattern into the back screen
+ R_FillBackScreen ();
+}
+
+
+//
+// G_InitNew
+// Can be called by the startup code or the menu task,
+// consoleplayer, displayplayer, playeringame[] should be set.
+//
+skill_t d_skill;
+int d_episode;
+int d_map;
+
+void
+G_DeferedInitNew
+( skill_t skill,
+ int episode,
+ int map)
+{
+ d_skill = skill;
+ d_episode = episode;
+ d_map = map;
+ gameaction = ga_newgame;
+}
+
+
+void G_DoNewGame (void)
+{
+ demoplayback = false;
+ netdemo = false;
+ netgame = false;
+ deathmatch = false;
+ playeringame[1] = playeringame[2] = playeringame[3] = 0;
+ respawnparm = false;
+ fastparm = false;
+ nomonsters = false;
+ consoleplayer = 0;
+ G_InitNew (d_skill, d_episode, d_map);
+ gameaction = ga_nothing;
+}
+
+// The sky texture to be used instead of the F_SKY1 dummy.
+extern int skytexture;
+
+
+void
+G_InitNew
+( skill_t skill,
+ int episode,
+ int map )
+{
+ int i;
+
+ if (paused)
+ {
+ paused = false;
+ S_ResumeSound ();
+ }
+
+
+ if (skill > sk_nightmare)
+ skill = sk_nightmare;
+
+
+ // This was quite messy with SPECIAL and commented parts.
+ // Supposedly hacks to make the latest edition work.
+ // It might not work properly.
+ if (episode < 1)
+ episode = 1;
+
+ if ( gamemode == retail )
+ {
+ if (episode > 4)
+ episode = 4;
+ }
+ else if ( gamemode == shareware )
+ {
+ if (episode > 1)
+ episode = 1; // only start episode 1 on shareware
+ }
+ else
+ {
+ if (episode > 3)
+ episode = 3;
+ }
+
+
+
+ if (map < 1)
+ map = 1;
+
+ if ( (map > 9)
+ && ( gamemode != commercial) )
+ map = 9;
+
+ M_ClearRandom ();
+
+ if (skill == sk_nightmare || respawnparm )
+ respawnmonsters = true;
+ else
+ respawnmonsters = false;
+
+ if (fastparm || (skill == sk_nightmare && gameskill != sk_nightmare) )
+ {
+ for (i=S_SARG_RUN1 ; i<=S_SARG_PAIN2 ; i++)
+ states[i].tics >>= 1;
+ mobjinfo[MT_BRUISERSHOT].speed = 20*FRACUNIT;
+ mobjinfo[MT_HEADSHOT].speed = 20*FRACUNIT;
+ mobjinfo[MT_TROOPSHOT].speed = 20*FRACUNIT;
+ }
+ else if (skill != sk_nightmare && gameskill == sk_nightmare)
+ {
+ for (i=S_SARG_RUN1 ; i<=S_SARG_PAIN2 ; i++)
+ states[i].tics <<= 1;
+ mobjinfo[MT_BRUISERSHOT].speed = 15*FRACUNIT;
+ mobjinfo[MT_HEADSHOT].speed = 10*FRACUNIT;
+ mobjinfo[MT_TROOPSHOT].speed = 10*FRACUNIT;
+ }
+
+
+ // force players to be initialized upon first level load
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ players[i].playerstate = PST_REBORN;
+
+ usergame = true; // will be set false if a demo
+ paused = false;
+ demoplayback = false;
+ automapactive = false;
+ viewactive = true;
+ gameepisode = episode;
+ gamemap = map;
+ gameskill = skill;
+
+ viewactive = true;
+
+ // set the sky map for the episode
+ if ( gamemode == commercial)
+ {
+ skytexture = R_TextureNumForName ("SKY3");
+ if (gamemap < 12)
+ skytexture = R_TextureNumForName ("SKY1");
+ else
+ if (gamemap < 21)
+ skytexture = R_TextureNumForName ("SKY2");
+ }
+ else
+ switch (episode)
+ {
+ case 1:
+ skytexture = R_TextureNumForName ("SKY1");
+ break;
+ case 2:
+ skytexture = R_TextureNumForName ("SKY2");
+ break;
+ case 3:
+ skytexture = R_TextureNumForName ("SKY3");
+ break;
+ case 4: // Special Edition sky
+ skytexture = R_TextureNumForName ("SKY4");
+ break;
+ }
+
+ G_DoLoadLevel ();
+}
+
+
+//
+// DEMO RECORDING
+//
+#define DEMOMARKER 0x80
+
+
+void G_ReadDemoTiccmd (ticcmd_t* cmd)
+{
+ if (*demo_p == DEMOMARKER)
+ {
+ // end of demo data stream
+ G_CheckDemoStatus ();
+ return;
+ }
+ cmd->forwardmove = ((signed char)*demo_p++);
+ cmd->sidemove = ((signed char)*demo_p++);
+ cmd->angleturn = ((unsigned char)*demo_p++)<<8;
+ cmd->buttons = (unsigned char)*demo_p++;
+}
+
+
+void G_WriteDemoTiccmd (ticcmd_t* cmd)
+{
+ if (gamekeydown['q']) // press q to end demo recording
+ G_CheckDemoStatus ();
+ *demo_p++ = cmd->forwardmove;
+ *demo_p++ = cmd->sidemove;
+ *demo_p++ = (cmd->angleturn+128)>>8;
+ *demo_p++ = cmd->buttons;
+ demo_p -= 4;
+ if (demo_p > demoend - 16)
+ {
+ // no more space
+ G_CheckDemoStatus ();
+ return;
+ }
+
+ G_ReadDemoTiccmd (cmd); // make SURE it is exactly the same
+}
+
+
+
+//
+// G_RecordDemo
+//
+void G_RecordDemo (char* name)
+{
+ int i;
+ int maxsize;
+
+ usergame = false;
+ strcpy (demoname, name);
+ strcat (demoname, ".lmp");
+ maxsize = 0x20000;
+ i = M_CheckParm ("-maxdemo");
+ if (i && i<myargc-1)
+ maxsize = atoi(myargv[i+1])*1024;
+ demobuffer = Z_Malloc (maxsize,PU_STATIC,NULL);
+ demoend = demobuffer + maxsize;
+
+ demorecording = true;
+}
+
+
+void G_BeginRecording (void)
+{
+ int i;
+
+ demo_p = demobuffer;
+
+ *demo_p++ = VERSION;
+ *demo_p++ = gameskill;
+ *demo_p++ = gameepisode;
+ *demo_p++ = gamemap;
+ *demo_p++ = deathmatch;
+ *demo_p++ = respawnparm;
+ *demo_p++ = fastparm;
+ *demo_p++ = nomonsters;
+ *demo_p++ = consoleplayer;
+
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ *demo_p++ = playeringame[i];
+}
+
+
+//
+// G_PlayDemo
+//
+
+char* defdemoname;
+
+void G_DeferedPlayDemo (char* name)
+{
+ defdemoname = name;
+ gameaction = ga_playdemo;
+}
+
+void G_DoPlayDemo (void)
+{
+ skill_t skill;
+ int i, episode, map;
+
+ gameaction = ga_nothing;
+ demobuffer = demo_p = W_CacheLumpName (defdemoname, PU_STATIC);
+ if ( *demo_p++ != VERSION)
+ {
+ fprintf( stderr, "Demo is from a different game version!\n");
+ gameaction = ga_nothing;
+ return;
+ }
+
+ skill = *demo_p++;
+ episode = *demo_p++;
+ map = *demo_p++;
+ deathmatch = *demo_p++;
+ respawnparm = *demo_p++;
+ fastparm = *demo_p++;
+ nomonsters = *demo_p++;
+ consoleplayer = *demo_p++;
+
+ for (i=0 ; i<MAXPLAYERS ; i++)
+ playeringame[i] = *demo_p++;
+ if (playeringame[1])
+ {
+ netgame = true;
+ netdemo = true;
+ }
+
+ // don't spend a lot of time in loadlevel
+ precache = false;
+ G_InitNew (skill, episode, map);
+ precache = true;
+
+ usergame = false;
+ demoplayback = true;
+}
+
+//
+// G_TimeDemo
+//
+void G_TimeDemo (char* name)
+{
+ nodrawers = M_CheckParm ("-nodraw");
+ noblit = M_CheckParm ("-noblit");
+ timingdemo = true;
+ singletics = true;
+
+ defdemoname = name;
+ gameaction = ga_playdemo;
+}
+
+
+/*
+===================
+=
+= G_CheckDemoStatus
+=
+= Called after a death or level completion to allow demos to be cleaned up
+= Returns true if a new demo loop action will take place
+===================
+*/
+
+boolean G_CheckDemoStatus (void)
+{
+ int endtime;
+
+ if (timingdemo)
+ {
+ endtime = I_GetTime ();
+ I_Error ("timed %i gametics in %i realtics",gametic
+ , endtime-starttime);
+ }
+
+ if (demoplayback)
+ {
+ if (singledemo)
+ I_Quit ();
+
+ Z_ChangeTag (demobuffer, PU_CACHE);
+ demoplayback = false;
+ netdemo = false;
+ netgame = false;
+ deathmatch = false;
+ playeringame[1] = playeringame[2] = playeringame[3] = 0;
+ respawnparm = false;
+ fastparm = false;
+ nomonsters = false;
+ consoleplayer = 0;
+ D_AdvanceDemo ();
+ return true;
+ }
+
+ if (demorecording)
+ {
+ *demo_p++ = DEMOMARKER;
+ M_WriteFile (demoname, demobuffer, demo_p - demobuffer);
+ Z_Free (demobuffer);
+ demorecording = false;
+ I_Error ("Demo %s recorded",demoname);
+ }
+
+ return false;
+}
+
+
+