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p_mobj.c
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p_mobj.c
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/**\file
*\section License
* License: GPL
* Online License Link: http://www.gnu.org/licenses/gpl.html
*
*\author Copyright © 2003-2008 Jaakko Keränen <jaakko.keranen@iki.fi>
*\author Copyright © 2005-2008 Daniel Swanson <danij@dengine.net>
*\author Copyright © 2003-2005 Samuel Villarreal <svkaiser@gmail.com>
*\author Copyright © 1999 by Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman (PrBoom 2.2.6)
*\author Copyright © 1999-2000 by Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze (PrBoom 2.2.6)
*\author Copyright © 1993-1996 by id Software, Inc.
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* p_mobj.c: Moving object handling. Spawn functions.
*/
#ifdef MSVC
# pragma optimize("g", off)
#endif
// HEADER FILES ------------------------------------------------------------
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "jdoom64.h"
#include "dmu_lib.h"
#include "hu_stuff.h"
#include "g_common.h"
#include "p_map.h"
#include "p_player.h"
#include "p_tick.h"
#include "p_actor.h"
#include "p_start.h"
// MACROS ------------------------------------------------------------------
#define VANISHTICS (2*TICSPERSEC)
#define MAX_BOB_OFFSET (8)
#define STOPSPEED (1.0f/1.6/10)
#define STANDSPEED (1.0f/2)
// Time interval for item respawning.
#define ITEMQUEUESIZE (128)
// TYPES -------------------------------------------------------------------
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
void P_SpawnMapThing(spawnspot_t *mthing);
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
// PUBLIC DATA DEFINITIONS -------------------------------------------------
// PRIVATE DATA DEFINITIONS ------------------------------------------------
static spawnspot_t itemRespawnQueue[ITEMQUEUESIZE];
static int itemRespawnTime[ITEMQUEUESIZE];
static int itemRespawnQueueHead;
static int itemRespawnQueueTail;
// CODE --------------------------------------------------------------------
/**
* @return @c true, if the mobj is still present.
*/
boolean P_MobjChangeState(mobj_t *mobj, statenum_t state)
{
state_t *st;
do
{
if(state == S_NULL)
{
mobj->state = (state_t *) S_NULL;
P_MobjRemove(mobj, false);
return false;
}
P_MobjSetState(mobj, state);
st = &states[state];
mobj->turnTime = false; // $visangle-facetarget
// Modified handling.
// Call action functions when the state is set
if(st->action)
st->action(mobj);
state = st->nextState;
} while(!mobj->tics);
return true;
}
void P_ExplodeMissile(mobj_t *mo)
{
if(IS_CLIENT)
{
// Clients won't explode missiles.
P_MobjChangeState(mo, S_NULL);
return;
}
mo->mom[MX] = mo->mom[MY] = mo->mom[MZ] = 0;
P_MobjChangeState(mo, mobjInfo[mo->type].deathState);
mo->tics -= P_Random() & 3;
if(mo->tics < 1)
mo->tics = 1;
if(mo->flags & MF_MISSILE)
{
mo->flags &= ~MF_MISSILE;
mo->flags |= MF_VIEWALIGN;
// Remove the brightshadow flag.
if(mo->flags & MF_BRIGHTSHADOW)
mo->flags &= ~MF_BRIGHTSHADOW;
if(mo->flags & MF_BRIGHTEXPLODE)
mo->flags |= MF_BRIGHTSHADOW;
}
if(mo->info->deathSound)
S_StartSound(mo->info->deathSound, mo);
}
void P_FloorBounceMissile(mobj_t *mo)
{
mo->mom[MZ] = -mo->mom[MZ];
P_MobjChangeState(mo, mobjInfo[mo->type].deathState);
}
/**
* @return The ground friction factor for the mobj.
*/
float P_MobjGetFriction(mobj_t *mo)
{
if((mo->flags2 & MF2_FLY) && !(mo->pos[VZ] <= mo->floorZ) && !mo->onMobj)
{
return FRICTION_FLY;
}
return XS_Friction(P_GetPtrp(mo->subsector, DMU_SECTOR));
}
void P_MobjMoveXY(mobj_t *mo)
{
float pos[3], mom[3];
player_t *player;
boolean largeNegative;
// $democam: cameramen have their own movement code
if(P_CameraXYMovement(mo))
return;
mom[MX] = mo->mom[MX] = CLAMP(mo->mom[MX], -MAXMOVE, MAXMOVE);
mom[MY] = mo->mom[MY] = CLAMP(mo->mom[MY], -MAXMOVE, MAXMOVE);
if(mom[MX] == 0 && mom[MY] == 0)
{
if(mo->flags & MF_SKULLFLY)
{ // The skull slammed into something.
mo->flags &= ~MF_SKULLFLY;
mo->mom[MX] = mo->mom[MY] = mo->mom[MZ] = 0;
P_MobjChangeState(mo, mo->info->spawnState);
}
return;
}
player = mo->player;
do
{
/**
* DOOM.exe bug fix:
* Large negative displacements were never considered. This explains the
* tendency for Mancubus fireballs to pass through walls.
*/
largeNegative = false;
if(!cfg.moveBlock &&
(mom[MX] < -MAXMOVE / 2 || mom[MY] < -MAXMOVE / 2))
{
// Make an exception for "north-only wallrunning".
if(!(cfg.wallRunNorthOnly && mo->wallRun))
largeNegative = true;
}
if(largeNegative || mom[MX] > MAXMOVE / 2 || mom[MY] > MAXMOVE / 2)
{
pos[VX] = mo->pos[VX] + mom[VX] / 2;
pos[VY] = mo->pos[VY] + mom[VY] / 2;
mom[VX] /= 2;
mom[VY] /= 2;
}
else
{
pos[VX] = mo->pos[VX] + mom[MX];
pos[VY] = mo->pos[VY] + mom[MY];
mom[MX] = mom[MY] = 0;
}
// If mobj was wallrunning - stop.
if(mo->wallRun)
mo->wallRun = false;
// $dropoff_fix.
if(!P_TryMove(mo, pos[VX], pos[VY], true, false))
{ // Blocked move.
if(mo->flags2 & MF2_SLIDE)
{ // Try to slide along it.
P_SlideMove(mo);
}
else if(mo->flags & MF_MISSILE)
{
if(ceilingLine)
{
sector_t *backsector =
P_GetPtrp(ceilingLine, DMU_BACK_SECTOR);
if(backsector)
{
// Explode a missile?
if(ceilingLine &&
P_GetIntp(backsector, DMU_CEILING_MATERIAL) ==
SKYMASKMATERIAL)
{
// Hack to prevent missiles exploding
// against the sky.
// Does not handle sky floors.
P_MobjRemove(mo, false);
return;
}
}
}
P_ExplodeMissile(mo);
}
else
mo->mom[MX] = mo->mom[MY] = 0;
}
} while(mom[MX] != 0 || mom[MY] != 0);
// Slow down.
if(player && (P_GetPlayerCheats(player) & CF_NOMOMENTUM))
{
// Debug option for no sliding at all.
mo->mom[MX] = mo->mom[MY] = 0;
return;
}
if(mo->flags & (MF_MISSILE | MF_SKULLFLY))
return; // No friction for missiles ever.
if(mo->pos[VZ] > mo->floorZ && !mo->onMobj && !(mo->flags2 & MF2_FLY))
return; // No friction when falling.
if(cfg.slidingCorpses)
{
// $dropoff_fix: Add objects falling off ledges, does not apply to
// players.
if(((mo->flags & MF_CORPSE) || (mo->intFlags & MIF_FALLING)) &&
!mo->player)
{
// Do not stop sliding if halfway off a step with some momentum.
if(mo->mom[MX] > (1.0f / 4) || mo->mom[MX] < -(1.0f / 4) ||
mo->mom[MY] > (1.0f / 4) || mo->mom[MY] < -(1.0f / 4))
{
if(mo->floorZ !=
P_GetFloatp(mo->subsector, DMU_FLOOR_HEIGHT))
return;
}
}
}
// Stop player walking animation.
if(player && !player->plr->cmd.forwardMove && !player->plr->cmd.sideMove &&
mo->mom[MX] > -STANDSPEED && mo->mom[MX] < STANDSPEED &&
mo->mom[MY] > -STANDSPEED && mo->mom[MY] < STANDSPEED)
{
// If in a walking frame, stop moving.
if((unsigned) ((player->plr->mo->state - states) - PCLASS_INFO(player->class)->runState) < 4)
P_MobjChangeState(player->plr->mo, PCLASS_INFO(player->class)->normalState);
}
if((!player || (player->plr->cmd.forwardMove == 0 && player->plr->cmd.sideMove == 0)) &&
mo->mom[MX] > -STOPSPEED && mo->mom[MX] < STOPSPEED &&
mo->mom[MY] > -STOPSPEED && mo->mom[MY] < STOPSPEED)
{
mo->mom[MX] = mo->mom[MY] = 0;
}
else
{
if((mo->flags2 & MF2_FLY) && !(mo->pos[VZ] <= mo->floorZ) &&
!mo->onMobj)
{
mo->mom[MX] *= FRICTION_FLY;
mo->mom[MY] *= FRICTION_FLY;
}
#if __JHERETIC__
else if(P_ToXSector(P_GetPtrp(mo->subsector,
DMU_SECTOR))->special == 15)
{
// Friction_Low
mo->mom[MX] *= FRICTION_LOW;
mo->mom[MY] *= FRICTION_LOW;
}
#endif
else
{
float friction = P_MobjGetFriction(mo);
mo->mom[MX] *= friction;
mo->mom[MY] *= friction;
}
}
}
/*
static boolean PIT_Splash(sector_t *sector, void *data)
{
mobj_t *mo = data;
float floorheight;
floorheight = P_GetFloatp(sector, DMU_FLOOR_HEIGHT);
// Is the mobj touching the floor of this sector?
if(mo->pos[VZ] < floorheight &&
mo->pos[VZ] + mo->height / 2 > floorheight)
{
//// \todo Play a sound, spawn a generator, etc.
}
// Continue checking.
return true;
}
*/
void P_RipperBlood(mobj_t *mo)
{
mobj_t *th;
float pos[3];
memcpy(pos, mo->pos, sizeof(pos));
pos[VX] += FIX2FLT((P_Random() - P_Random()) << 12);
pos[VY] += FIX2FLT((P_Random() - P_Random()) << 12);
pos[VZ] += FIX2FLT((P_Random() - P_Random()) << 12);
th = P_SpawnMobj3fv(MT_BLOOD, pos);
th->flags |= MF_NOGRAVITY;
th->mom[MX] /= 2;
th->mom[MY] /= 2;
th->tics += P_Random() & 3;
}
int P_MobjGetFloorType(mobj_t *thing)
{
return P_GetTerrainType(P_GetPtrp(thing->subsector, DMU_SECTOR), PLN_FLOOR);
}
void P_HitFloor(mobj_t *mo)
{
//P_MobjSectorsIterator(mo, PIT_Splash, mo);
}
void P_MobjMoveZ(mobj_t *mo)
{
float gravity;
float dist;
float delta;
gravity = XS_Gravity(P_GetPtrp(mo->subsector, DMU_SECTOR));
// $democam: cameramen get special z movement.
if(P_CameraZMovement(mo))
return;
// Check for smooth step up.
if(mo->player && mo->pos[VZ] < mo->floorZ)
{
mo->dPlayer->viewHeight -= mo->floorZ - mo->pos[VZ];
mo->dPlayer->viewHeightDelta =
(cfg.plrViewHeight - mo->dPlayer->viewHeight) / 8;
}
// Adjust height.
mo->pos[VZ] += mo->mom[MZ];
if((mo->flags2 & MF2_FLY) &&
mo->onMobj && mo->pos[VZ] > mo->onMobj->pos[VZ] + mo->onMobj->height)
mo->onMobj = NULL; // We were on a mobj, we are NOT now.
if((mo->flags & MF_FLOAT) && mo->target && !P_IsCamera(mo->target))
{
// Float down towards target if too close.
if(!(mo->flags & MF_SKULLFLY) && !(mo->flags & MF_INFLOAT))
{
dist = P_ApproxDistance(mo->pos[VX] - mo->target->pos[VX],
mo->pos[VY] - mo->target->pos[VY]);
//delta = (mo->target->pos[VZ] + (mo->height / 2)) - mo->pos[VZ];
delta = (mo->target->pos[VZ] + mo->target->height / 2) -
(mo->pos[VZ] + mo->height / 2);
if(dist < mo->radius + mo->target->radius &&
fabs(delta) < mo->height + mo->target->height)
{
// Don't go INTO the target.
delta = 0;
}
if(delta < 0 && dist < -(delta * 3))
{
mo->pos[VZ] -= FLOATSPEED;
P_MobjSetSRVOZ(mo, -FLOATSPEED);
}
else if(delta > 0 && dist < (delta * 3))
{
mo->pos[VZ] += FLOATSPEED;
P_MobjSetSRVOZ(mo, FLOATSPEED);
}
}
}
// Do some fly-bobbing.
if(mo->player && (mo->flags2 & MF2_FLY) && mo->pos[VZ] > mo->floorZ &&
!mo->onMobj && (levelTime & 2))
{
mo->pos[VZ] += FIX2FLT(finesine[(FINEANGLES / 20 * levelTime >> 2) & FINEMASK]);
}
// Clip movement. Another thing?
// jd64 >
// DJS - FIXME!
if(mo->pos[VZ] <= mo->floorZ && (mo->flags & MF_MISSILE))
{
// Hit the floor
mo->pos[VZ] = mo->floorZ;
P_ExplodeMissile(mo);
return;
}
// < d64tc
if(mo->onMobj && mo->pos[VZ] <= mo->onMobj->pos[VZ] + mo->onMobj->height)
{
if(mo->mom[MZ] < 0)
{
if(mo->player && mo->mom[MZ] < -gravity * 8 &&
!(mo->flags2 & MF2_FLY))
{
// Squat down.
// Decrease viewheight for a moment
// after hitting the ground (hard),
// and utter appropriate sound.
mo->dPlayer->viewHeightDelta = mo->mom[MZ] / 8;
if(mo->player->health > 0)
S_StartSound(SFX_OOF, mo);
}
mo->mom[MZ] = 0;
}
if(mo->mom[MZ] == 0)
mo->pos[VZ] = mo->onMobj->pos[VZ] + mo->onMobj->height;
if((mo->flags & MF_MISSILE) && !(mo->flags & MF_NOCLIP))
{
P_ExplodeMissile(mo);
return;
}
}
// jd64 >
// MotherDemon's Fire attacks can climb up/down stairs
// DJS - FIXME!
#if 0
if((mo->flags & MF_MISSILE) && (mo->type == MT_FIREEND))
{
mo->pos[VZ] = mo->floorZ;
if(mo->type == MT_FIREEND)
{
return;
}
else
{
P_ExplodeMissile(mo);
return;
}
}
#endif
// < d64tc
// The floor.
if(mo->pos[VZ] <= mo->floorZ)
{
// hit the floor
// Note (id):
// somebody left this after the setting momz to 0,
// kinda useless there.
//
// cph - This was the a bug in the linuxdoom-1.10 source which
// caused it not to sync Doom 2 v1.9 demos. Someone
// added the above comment and moved up the following code. So
// demos would desync in close lost soul fights.
// Note that this only applies to original Doom 1 or Doom2 demos - not
// Final Doom and Ultimate Doom. So we test demo_compatibility *and*
// gameMission. (Note we assume that Doom1 is always Ult Doom, which
// seems to hold for most published demos.)
//
// fraggle - cph got the logic here slightly wrong. There are three
// versions of Doom 1.9:
//
// * The version used in registered doom 1.9 + doom2 - no bounce
// * The version used in ultimate doom - has bounce
// * The version used in final doom - has bounce
//
// So we need to check that this is either retail or commercial
// (but not doom2)
int correct_lost_soul_bounce = true;
if(mo->flags & MF_SKULLFLY)
{
// the skull slammed into something
mo->mom[MZ] = -mo->mom[MZ];
}
if(mo->mom[MZ] < 0)
{
if(mo->player && mo->mom[MZ] < -gravity * 8 &&
!(mo->flags2 & MF2_FLY))
{
// Squat down.
// Decrease viewheight for a moment
// after hitting the ground (hard),
// and utter appropriate sound.
mo->dPlayer->viewHeightDelta = mo->mom[MZ] / 8;
// Fix DOOM bug - dead players grunting when hitting the ground
// (e.g., after an archvile attack)
if(mo->player->health > 0)
S_StartSound(SFX_OOF, mo);
}
P_HitFloor(mo);
mo->mom[MZ] = 0;
}
mo->pos[VZ] = mo->floorZ;
// cph 2001/05/26 -
// See lost soul bouncing comment above. We need this here for bug
// compatibility with original Doom2 v1.9 - if a soul is charging and
// hit by a raising floor this incorrectly reverses its Y momentum.
//
if(!correct_lost_soul_bounce && mo->flags & MF_SKULLFLY)
mo->mom[MZ] = -mo->mom[MZ];
if((mo->flags & MF_MISSILE) && !(mo->flags & MF_NOCLIP))
{
if(mo->flags2 & MF2_FLOORBOUNCE)
{
P_FloorBounceMissile(mo);
return;
}
else
{
P_ExplodeMissile(mo);
return;
}
}
}
else if(mo->flags2 & MF2_LOGRAV)
{
if(mo->mom[MZ] == 0)
mo->mom[MZ] = -(gravity / 8) * 2;
else
mo->mom[MZ] -= (gravity / 8);
}
else if(!(mo->flags & MF_NOGRAVITY))
{
if(mo->mom[MZ] == 0)
mo->mom[MZ] = -gravity * 2;
else
mo->mom[MZ] -= gravity;
}
if(mo->pos[VZ] + mo->height > mo->ceilingZ)
{
// Hit the ceiling.
if(mo->mom[MZ] > 0)
mo->mom[MZ] = 0;
mo->pos[VZ] = mo->ceilingZ - mo->height;
if(mo->flags & MF_SKULLFLY)
{ // The skull slammed into something.
mo->mom[MZ] = -mo->mom[MZ];
}
if((mo->flags & MF_MISSILE) && !(mo->flags & MF_NOCLIP))
{
// Don't explode against sky.
if(P_GetIntp(mo->subsector, DMU_CEILING_MATERIAL) ==
SKYMASKMATERIAL)
{
P_MobjRemove(mo, false);
}
else
{
P_ExplodeMissile(mo);
}
}
}
}
void P_NightmareRespawn(mobj_t* mobj)
{
float pos[3];
subsector_t* ss;
mobj_t* mo;
pos[VX] = mobj->spawnSpot.pos[VX];
pos[VY] = mobj->spawnSpot.pos[VY];
pos[VZ] = mobj->spawnSpot.pos[VZ];
// Something is occupying it's position?
if(!P_CheckPosition2f(mobj, pos[VX], pos[VY]))
return; // No respwan.
// Spawn a teleport fog at old spot.
mo = P_SpawnMobj3f(MT_TFOG, mobj->pos[VX], mobj->pos[VY],
P_GetFloatp(mobj->subsector, DMU_FLOOR_HEIGHT));
S_StartSound(SFX_TELEPT, mo);
// Spawn a teleport fog at the new spot.
ss = R_PointInSubsector(pos[VX], pos[VY]);
mo = P_SpawnMobj3f(MT_TFOG, pos[VX], pos[VY],
P_GetFloatp(ss, DMU_FLOOR_HEIGHT));
S_StartSound(SFX_TELEPT, mo);
if(mobj->info->flags & MF_SPAWNCEILING)
pos[VZ] = ONCEILINGZ;
else
pos[VZ] = ONFLOORZ;
// Inherit attributes from deceased one.
mo = P_SpawnMobj3fv(mobj->type, pos);
memcpy(&mo->spawnSpot, &mobj->spawnSpot, sizeof(mo->spawnSpot));
mo->angle = mobj->spawnSpot.angle;
if(mobj->spawnSpot.flags & MTF_DEAF)
mo->flags |= MF_AMBUSH;
mo->reactionTime = 18;
// Remove the old monster.
P_MobjRemove(mobj, true);
}
/**
* d64tc
*/
void P_FloatThingy(mobj_t *actor)
{
float minz, maxz;
if(actor->threshold || (actor->flags & MF_INFLOAT))
return;
maxz = actor->ceilingZ - 16 - actor->height;
minz = actor->floorZ + 96;
if(minz > maxz)
minz = maxz;
if(minz < actor->pos[VZ])
{
actor->mom[MZ] -= 1;
}
else
{
actor->mom[MZ] += 1;
}
actor->reactionTime = (minz == actor->pos[VZ]? 4 : 0);
}
void P_MobjThinker(mobj_t *mobj)
{
if(mobj->ddFlags & DDMF_REMOTE)
return; // Remote mobjs are handled separately.
// Spectres get selector = 1.
if(mobj->type == MT_SHADOWS)
mobj->selector = (mobj->selector & ~DDMOBJ_SELECTOR_MASK) | 1;
// The first three bits of the selector special byte contain a
// relative health level.
P_UpdateHealthBits(mobj);
#if __JHERETIC__
// Lightsources must stay where they're hooked.
if(mobj->type == MT_LIGHTSOURCE)
{
if(mobj->moveDir > 0)
mobj->pos[VZ] =
P_GetFloatp(mobj->subsector, DMU_FLOOR_HEIGHT);
else
mobj->pos[VZ] =
P_GetFixedp(mobj->subsector, DMU_CEILING_HEIGHT);
mobj->pos[VZ] += FIX2FLT(mobj->moveDir);
return;
}
#endif
// Handle X and Y momentums.
if(mobj->mom[MX] != 0 || mobj->mom[MY] != 0 || (mobj->flags & MF_SKULLFLY))
{
P_MobjMoveXY(mobj);
//// \fixme decent NOP/NULL/Nil function pointer please.
if(mobj->thinker.function == NOPFUNC)
return; // Mobj was removed.
}
if(mobj->flags2 & MF2_FLOATBOB)
{ // Floating item bobbing motion.
// Keep it on the floor.
mobj->pos[VZ] = mobj->floorZ;
mobj->floorClip = 0;
if(mobj->floorClip < -MAX_BOB_OFFSET)
{
// We don't want it going through the floor.
mobj->floorClip = -MAX_BOB_OFFSET;
}
// Old floatbob used health as index, let's still increase it
// as before (in case somebody wants to use it).
mobj->health++;
}
else if(mobj->pos[VZ] != mobj->floorZ || mobj->mom[MZ] != 0)
{
P_MobjMoveZ(mobj);
if(mobj->thinker.function != P_MobjThinker) // Must've been removed.
return; // Mobj was removed.
}
// Non-sentient objects at rest.
else if(!(mobj->mom[MX] == 0 && mobj->mom[MY] == 0) && !sentient(mobj) &&
!(mobj->player) && !((mobj->flags & MF_CORPSE) &&
cfg.slidingCorpses))
{
// Objects fall off ledges if they are hanging off slightly push
// off of ledge if hanging more than halfway off
if(mobj->pos[VZ] > mobj->dropOffZ && // Only objects contacting dropoff.
!(mobj->flags & MF_NOGRAVITY) && cfg.fallOff)
{
P_ApplyTorque(mobj);
}
else
{
mobj->intFlags &= ~MIF_FALLING;
mobj->gear = 0; // Reset torque.
}
}
if(cfg.slidingCorpses)
{
if(((mobj->flags & MF_CORPSE)? mobj->pos[VZ] > mobj->dropOffZ :
mobj->pos[VZ] - mobj->dropOffZ > 24) && // Only objects contacting drop off
!(mobj->flags & MF_NOGRAVITY)) // Only objects which fall.
{
P_ApplyTorque(mobj); // Apply torque.
}
else
{
mobj->intFlags &= ~MIF_FALLING;
mobj->gear = 0; // Reset torque.
}
}
// $vanish: dead monsters disappear after some time.
if(cfg.corpseTime && (mobj->flags & MF_CORPSE) && mobj->corpseTics != -1)
{
if(++mobj->corpseTics < cfg.corpseTime * TICSPERSEC)
{
mobj->translucency = 0; // Opaque.
}
else if(mobj->corpseTics < cfg.corpseTime * TICSPERSEC + VANISHTICS)
{
// Translucent during vanishing.
mobj->translucency =
((mobj->corpseTics -
cfg.corpseTime * TICSPERSEC) * 255) / VANISHTICS;
}
else
{
// Too long; get rid of the corpse.
mobj->corpseTics = -1;
return;
}
}
// jd64 >
// kaiser fade monsters upon spawning
// DJS - FIXME? Should this be using corpsetics?
if(mobj->intFlags & MIF_FADE)
{
mobj->translucency = 255;
if(++mobj->corpseTics > TICSPERSEC)
{
mobj->translucency = 0;
}
else if(mobj->corpseTics < TICSPERSEC + VANISHTICS)
{
mobj->translucency =
((mobj->corpseTics - TICSPERSEC) * -255) / VANISHTICS;
}
}
// < d64tc
// Cycle through states, calling action functions at transitions.
if(mobj->tics != -1)
{
mobj->tics--;
P_MobjAngleSRVOTicker(mobj); // "angle-servo"; smooth actor turning.
// You can cycle through multiple states in a tic.
if(!mobj->tics)
{
P_MobjClearSRVO(mobj);
if(!P_MobjChangeState(mobj, mobj->state->nextState))
return; // Freed itself.
}
}
else if(!IS_CLIENT)
{
// Check for nightmare respawn.
if(!(mobj->flags & MF_COUNTKILL))
return;
if(!respawnMonsters)
return;
mobj->moveCount++;
if(mobj->moveCount < 12 * 35)
return;
if(levelTime & 31)
return;
if(P_Random() > 4)
return;
P_NightmareRespawn(mobj);
}
}
/**
* Spawns a mobj of "type" at the specified position.
*/
mobj_t *P_SpawnMobj3f(mobjtype_t type, float x, float y, float z)
{
mobj_t *mo;
mobjinfo_t *info = &mobjInfo[type];
float space;
mo = P_MobjCreate(P_MobjThinker, x, y, z, 0, info->radius, info->height,
0);
mo->type = type;
mo->info = info;
mo->flags = info->flags;
mo->flags2 = info->flags2;
mo->flags3 = info->flags3;
mo->damage = info->damage;
mo->health =
info->spawnHealth * (IS_NETGAME ? cfg.netMobHealthModifier : 1);
// Let the engine know about solid objects.
P_SetDoomsdayFlags(mo);
if(gameSkill != SM_NIGHTMARE)
mo->reactionTime = info->reactionTime;
mo->lastLook = P_Random() % MAXPLAYERS;
// Do not set the state with P_MobjChangeState, because action routines
// can not be called yet.
// Must link before setting state (ID assigned for the mo).
P_MobjSetState(mo, info->spawnState);
P_MobjSetPosition(mo);
mo->floorZ = P_GetFloatp(mo->subsector, DMU_FLOOR_HEIGHT);
mo->dropOffZ = mo->floorZ;
mo->ceilingZ = P_GetFloatp(mo->subsector, DMU_CEILING_HEIGHT);
if(mo->pos[VZ] == ONFLOORZ)
{
mo->pos[VZ] = mo->floorZ;
}
else if(mo->pos[VZ] == ONCEILINGZ)
{
mo->pos[VZ] = mo->ceilingZ - mo->info->height;
}
else if(mo->pos[VZ] == FLOATRANDZ)
{
space = mo->ceilingZ - mo->info->height - mo->floorZ;
if(space > 48)
{
space -= 40;
mo->pos[VZ] = ((space * P_Random()) / 256) + mo->floorZ + 40;
}
else
{
mo->pos[VZ] = mo->floorZ;
}
}
if((mo->flags2 & MF2_FLOORCLIP) &&
P_MobjGetFloorType(mo) >= FLOOR_LIQUID &&
mo->pos[VZ] == P_GetFloatp(mo->subsector, DMU_FLOOR_HEIGHT))
{
mo->floorClip = 10;
}
else
{
mo->floorClip = 0;
}
return mo;
}
mobj_t *P_SpawnMobj3fv(mobjtype_t type, float pos[3])
{
return P_SpawnMobj3f(type, pos[VX], pos[VY], pos[VZ]);
}
/**
* Queue up a spawn from the specified spot.
*/
void P_RespawnEnqueue(spawnspot_t *spot)
{
spawnspot_t *spawnobj = &itemRespawnQueue[itemRespawnQueueHead];
memcpy(spawnobj, spot, sizeof(*spawnobj));
itemRespawnTime[itemRespawnQueueHead] = levelTime;
itemRespawnQueueHead = (itemRespawnQueueHead + 1) & (ITEMQUEUESIZE - 1);
// Lose one off the end?
if(itemRespawnQueueHead == itemRespawnQueueTail)
itemRespawnQueueTail = (itemRespawnQueueTail + 1) & (ITEMQUEUESIZE - 1);
}
/**
* DJS - This has been SERIOUSLY hacked about with in d64tc.
* FIXME: Make sure everything still works as expected.
*/
void P_CheckRespawnQueue(void) // jd64
{
int i;