ref: 48e858988f16109b81ce1c3b3e4d63c3565f25b3
dir: /src/heretic/p_tick.c/
// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 1993-2008 Raven Software
// Copyright(C) 2008 Simon Howard
//
// 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.
//
//-----------------------------------------------------------------------------
// P_tick.c
#include "doomdef.h"
#include "i_system.h"
#include "p_local.h"
#include "v_video.h"
int leveltime;
int TimerGame;
/*
====================
=
= P_ArchivePlayers
=
====================
*/
void P_ArchivePlayers(void)
{
int i;
int j;
player_t dest;
for (i = 0; i < MAXPLAYERS; i++)
{
if (!playeringame[i])
{
continue;
}
memcpy(&dest, &players[i], sizeof(player_t));
for (j = 0; j < NUMPSPRITES; j++)
{
if (dest.psprites[j].state)
{
dest.psprites[j].state =
(state_t *) (dest.psprites[j].state - states);
}
}
SV_Write(&dest, sizeof(player_t));
}
}
/*
====================
=
= P_UnArchivePlayers
=
====================
*/
void P_UnArchivePlayers(void)
{
int i, j;
for (i = 0; i < MAXPLAYERS; i++)
{
if (!playeringame[i])
continue;
memcpy(&players[i], save_p, sizeof(player_t));
save_p += sizeof(player_t);
players[i].mo = NULL; // will be set when unarc thinker
players[i].message = NULL;
players[i].attacker = NULL;
for (j = 0; j < NUMPSPRITES; j++)
if (players[i].psprites[j].state)
players[i].psprites[j].state
= &states[(int) players[i].psprites[j].state];
}
}
//=============================================================================
/*
====================
=
= P_ArchiveWorld
=
====================
*/
void P_ArchiveWorld(void)
{
int i, j;
sector_t *sec;
line_t *li;
side_t *si;
// Sectors
for (i = 0, sec = sectors; i < numsectors; i++, sec++)
{
SV_WriteWord(sec->floorheight >> FRACBITS);
SV_WriteWord(sec->ceilingheight >> FRACBITS);
SV_WriteWord(sec->floorpic);
SV_WriteWord(sec->ceilingpic);
SV_WriteWord(sec->lightlevel);
SV_WriteWord(sec->special); // needed?
SV_WriteWord(sec->tag); // needed?
}
// Lines
for (i = 0, li = lines; i < numlines; i++, li++)
{
SV_WriteWord(li->flags);
SV_WriteWord(li->special);
SV_WriteWord(li->tag);
for (j = 0; j < 2; j++)
{
if (li->sidenum[j] == -1)
{
continue;
}
si = &sides[li->sidenum[j]];
SV_WriteWord(si->textureoffset >> FRACBITS);
SV_WriteWord(si->rowoffset >> FRACBITS);
SV_WriteWord(si->toptexture);
SV_WriteWord(si->bottomtexture);
SV_WriteWord(si->midtexture);
}
}
}
/*
====================
=
= P_UnArchiveWorld
=
====================
*/
void P_UnArchiveWorld(void)
{
int i, j;
sector_t *sec;
line_t *li;
side_t *si;
short *get;
get = (short *) save_p;
//
// do sectors
//
for (i = 0, sec = sectors; i < numsectors; i++, sec++)
{
sec->floorheight = *get++ << FRACBITS;
sec->ceilingheight = *get++ << FRACBITS;
sec->floorpic = *get++;
sec->ceilingpic = *get++;
sec->lightlevel = *get++;
sec->special = *get++; // needed?
sec->tag = *get++; // needed?
sec->specialdata = 0;
sec->soundtarget = 0;
}
//
// do lines
//
for (i = 0, li = lines; i < numlines; i++, li++)
{
li->flags = *get++;
li->special = *get++;
li->tag = *get++;
for (j = 0; j < 2; j++)
{
if (li->sidenum[j] == -1)
continue;
si = &sides[li->sidenum[j]];
si->textureoffset = *get++ << FRACBITS;
si->rowoffset = *get++ << FRACBITS;
si->toptexture = *get++;
si->bottomtexture = *get++;
si->midtexture = *get++;
}
}
save_p = (byte *) get;
}
//=============================================================================
typedef enum
{
tc_end,
tc_mobj
} thinkerclass_t;
/*
====================
=
= P_ArchiveThinkers
=
====================
*/
void P_ArchiveThinkers(void)
{
thinker_t *th;
mobj_t mobj;
for (th = thinkercap.next; th != &thinkercap; th = th->next)
{
if (th->function == P_MobjThinker)
{
SV_WriteByte(tc_mobj);
memcpy(&mobj, th, sizeof(mobj_t));
mobj.state = (state_t *) (mobj.state - states);
if (mobj.player)
{
mobj.player = (player_t *) ((mobj.player - players) + 1);
}
SV_Write(&mobj, sizeof(mobj_t));
continue;
}
//I_Error("P_ArchiveThinkers: Unknown thinker function");
}
// Add a terminating marker
SV_WriteByte(tc_end);
}
/*
====================
=
= P_UnArchiveThinkers
=
====================
*/
void P_UnArchiveThinkers(void)
{
byte tclass;
thinker_t *currentthinker, *next;
mobj_t *mobj;
//
// remove all the current thinkers
//
currentthinker = thinkercap.next;
while (currentthinker != &thinkercap)
{
next = currentthinker->next;
if (currentthinker->function == P_MobjThinker)
P_RemoveMobj((mobj_t *) currentthinker);
else
Z_Free(currentthinker);
currentthinker = next;
}
P_InitThinkers();
// read in saved thinkers
while (1)
{
tclass = *save_p++;
switch (tclass)
{
case tc_end:
return; // end of list
case tc_mobj:
mobj = Z_Malloc(sizeof(*mobj), PU_LEVEL, NULL);
memcpy(mobj, save_p, sizeof(*mobj));
save_p += sizeof(*mobj);
mobj->state = &states[(int) mobj->state];
mobj->target = NULL;
if (mobj->player)
{
mobj->player = &players[(int) mobj->player - 1];
mobj->player->mo = mobj;
}
P_SetThingPosition(mobj);
mobj->info = &mobjinfo[mobj->type];
mobj->floorz = mobj->subsector->sector->floorheight;
mobj->ceilingz = mobj->subsector->sector->ceilingheight;
mobj->thinker.function = P_MobjThinker;
P_AddThinker(&mobj->thinker);
break;
default:
I_Error("Unknown tclass %i in savegame", tclass);
}
}
}
//=============================================================================
/*
====================
=
= P_ArchiveSpecials
=
====================
*/
enum
{
tc_ceiling,
tc_door,
tc_floor,
tc_plat,
tc_flash,
tc_strobe,
tc_glow,
tc_endspecials
} specials_e;
void P_ArchiveSpecials(void)
{
/*
T_MoveCeiling, (ceiling_t: sector_t * swizzle), - active list
T_VerticalDoor, (vldoor_t: sector_t * swizzle),
T_MoveFloor, (floormove_t: sector_t * swizzle),
T_LightFlash, (lightflash_t: sector_t * swizzle),
T_StrobeFlash, (strobe_t: sector_t *),
T_Glow, (glow_t: sector_t *),
T_PlatRaise, (plat_t: sector_t *), - active list
*/
thinker_t *th;
ceiling_t ceiling;
vldoor_t door;
floormove_t floor;
plat_t plat;
lightflash_t flash;
strobe_t strobe;
glow_t glow;
for (th = thinkercap.next; th != &thinkercap; th = th->next)
{
if (th->function == T_MoveCeiling)
{
SV_WriteByte(tc_ceiling);
memcpy(&ceiling, th, sizeof(ceiling_t));
ceiling.sector = (sector_t *) (ceiling.sector - sectors);
SV_Write(&ceiling, sizeof(ceiling_t));
continue;
}
if (th->function == T_VerticalDoor)
{
SV_WriteByte(tc_door);
memcpy(&door, th, sizeof(vldoor_t));
door.sector = (sector_t *) (door.sector - sectors);
SV_Write(&door, sizeof(vldoor_t));
continue;
}
if (th->function == T_MoveFloor)
{
SV_WriteByte(tc_floor);
memcpy(&floor, th, sizeof(floormove_t));
floor.sector = (sector_t *) (floor.sector - sectors);
SV_Write(&floor, sizeof(floormove_t));
continue;
}
if (th->function == T_PlatRaise)
{
SV_WriteByte(tc_plat);
memcpy(&plat, th, sizeof(plat_t));
plat.sector = (sector_t *) (plat.sector - sectors);
SV_Write(&plat, sizeof(plat_t));
continue;
}
if (th->function == T_LightFlash)
{
SV_WriteByte(tc_flash);
memcpy(&flash, th, sizeof(lightflash_t));
flash.sector = (sector_t *) (flash.sector - sectors);
SV_Write(&flash, sizeof(lightflash_t));
continue;
}
if (th->function == T_StrobeFlash)
{
SV_WriteByte(tc_strobe);
memcpy(&strobe, th, sizeof(strobe_t));
strobe.sector = (sector_t *) (strobe.sector - sectors);
SV_Write(&strobe, sizeof(strobe_t));
continue;
}
if (th->function == T_Glow)
{
SV_WriteByte(tc_glow);
memcpy(&glow, th, sizeof(glow_t));
glow.sector = (sector_t *) (glow.sector - sectors);
SV_Write(&glow, sizeof(glow_t));
continue;
}
}
// Add a terminating marker
SV_WriteByte(tc_endspecials);
}
/*
====================
=
= P_UnArchiveSpecials
=
====================
*/
void P_UnArchiveSpecials(void)
{
byte tclass;
ceiling_t *ceiling;
vldoor_t *door;
floormove_t *floor;
plat_t *plat;
lightflash_t *flash;
strobe_t *strobe;
glow_t *glow;
// read in saved thinkers
while (1)
{
tclass = *save_p++;
switch (tclass)
{
case tc_endspecials:
return; // end of list
case tc_ceiling:
ceiling = Z_Malloc(sizeof(*ceiling), PU_LEVEL, NULL);
memcpy(ceiling, save_p, sizeof(*ceiling));
save_p += sizeof(*ceiling);
ceiling->sector = §ors[(int) ceiling->sector];
ceiling->sector->specialdata = T_MoveCeiling;
if (ceiling->thinker.function)
ceiling->thinker.function = T_MoveCeiling;
P_AddThinker(&ceiling->thinker);
P_AddActiveCeiling(ceiling);
break;
case tc_door:
door = Z_Malloc(sizeof(*door), PU_LEVEL, NULL);
memcpy(door, save_p, sizeof(*door));
save_p += sizeof(*door);
door->sector = §ors[(int) door->sector];
door->sector->specialdata = door;
door->thinker.function = T_VerticalDoor;
P_AddThinker(&door->thinker);
break;
case tc_floor:
floor = Z_Malloc(sizeof(*floor), PU_LEVEL, NULL);
memcpy(floor, save_p, sizeof(*floor));
save_p += sizeof(*floor);
floor->sector = §ors[(int) floor->sector];
floor->sector->specialdata = T_MoveFloor;
floor->thinker.function = T_MoveFloor;
P_AddThinker(&floor->thinker);
break;
case tc_plat:
plat = Z_Malloc(sizeof(*plat), PU_LEVEL, NULL);
memcpy(plat, save_p, sizeof(*plat));
save_p += sizeof(*plat);
plat->sector = §ors[(int) plat->sector];
plat->sector->specialdata = T_PlatRaise;
if (plat->thinker.function)
plat->thinker.function = T_PlatRaise;
P_AddThinker(&plat->thinker);
P_AddActivePlat(plat);
break;
case tc_flash:
flash = Z_Malloc(sizeof(*flash), PU_LEVEL, NULL);
memcpy(flash, save_p, sizeof(*flash));
save_p += sizeof(*flash);
flash->sector = §ors[(int) flash->sector];
flash->thinker.function = T_LightFlash;
P_AddThinker(&flash->thinker);
break;
case tc_strobe:
strobe = Z_Malloc(sizeof(*strobe), PU_LEVEL, NULL);
memcpy(strobe, save_p, sizeof(*strobe));
save_p += sizeof(*strobe);
strobe->sector = §ors[(int) strobe->sector];
strobe->thinker.function = T_StrobeFlash;
P_AddThinker(&strobe->thinker);
break;
case tc_glow:
glow = Z_Malloc(sizeof(*glow), PU_LEVEL, NULL);
memcpy(glow, save_p, sizeof(*glow));
save_p += sizeof(*glow);
glow->sector = §ors[(int) glow->sector];
glow->thinker.function = T_Glow;
P_AddThinker(&glow->thinker);
break;
default:
I_Error("P_UnarchiveSpecials:Unknown tclass %i "
"in savegame", tclass);
}
}
}
/*
===============================================================================
THINKERS
All thinkers should be allocated by Z_Malloc so they can be operated on uniformly. The actual
structures will vary in size, but the first element must be thinker_t.
===============================================================================
*/
thinker_t thinkercap; // both the head and tail of the thinker list
/*
===============
=
= P_InitThinkers
=
===============
*/
void P_InitThinkers(void)
{
thinkercap.prev = thinkercap.next = &thinkercap;
}
/*
===============
=
= P_AddThinker
=
= Adds a new thinker at the end of the list
=
===============
*/
void P_AddThinker(thinker_t * thinker)
{
thinkercap.prev->next = thinker;
thinker->next = &thinkercap;
thinker->prev = thinkercap.prev;
thinkercap.prev = thinker;
}
/*
===============
=
= P_RemoveThinker
=
= Deallocation is lazy -- it will not actually be freed until its
= thinking turn comes up
=
===============
*/
void P_RemoveThinker(thinker_t * thinker)
{
thinker->function = (think_t) - 1;
}
/*
===============
=
= P_AllocateThinker
=
= Allocates memory and adds a new thinker at the end of the list
=
===============
*/
void P_AllocateThinker(thinker_t * thinker)
{
}
/*
===============
=
= P_RunThinkers
=
===============
*/
void P_RunThinkers(void)
{
thinker_t *currentthinker;
currentthinker = thinkercap.next;
while (currentthinker != &thinkercap)
{
if (currentthinker->function == (think_t) - 1)
{ // time to remove it
currentthinker->next->prev = currentthinker->prev;
currentthinker->prev->next = currentthinker->next;
Z_Free(currentthinker);
}
else
{
if (currentthinker->function)
currentthinker->function(currentthinker);
}
currentthinker = currentthinker->next;
}
}
//----------------------------------------------------------------------------
//
// PROC P_Ticker
//
//----------------------------------------------------------------------------
void P_Ticker(void)
{
int i;
if (paused)
{
return;
}
for (i = 0; i < MAXPLAYERS; i++)
{
if (playeringame[i])
{
P_PlayerThink(&players[i]);
}
}
if (TimerGame)
{
if (!--TimerGame)
{
G_ExitLevel();
}
}
P_RunThinkers();
P_UpdateSpecials();
P_AmbientSound();
leveltime++;
}