//-----------------------------------------------------------------------------
//
// Copyright 1993-1996 id Software
// Copyright 1994-1996 Raven Software
// Copyright 1998-1998 Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
// Copyright 1999-2016 Randy Heit
// Copyright 2002-2016 Christoph Oelckers
//
// 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 3 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, see http://www.gnu.org/licenses/
//
//-----------------------------------------------------------------------------
//
// DESCRIPTION:
// Implements special effects:
// Texture animation, height or lighting changes
// according to adjacent sectors, respective
// utility functions, etc.
// Line Tag handling. Line and Sector triggers.
// Implements donut linedef triggers
// Initializes and implements BOOM linedef triggers for
// Scrollers/Conveyors
// Friction
// Wind/Current
//
//-----------------------------------------------------------------------------
/* For code that originates from ZDoom the following applies:
**
**---------------------------------------------------------------------------
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#include <stdlib.h>
#include "templates.h"
#include "doomdef.h"
#include "doomstat.h"
#include "d_event.h"
#include "g_level.h"
#include "gstrings.h"
#include "events.h"
#include "m_random.h"
#include "p_local.h"
#include "p_spec.h"
#include "p_blockmap.h"
#include "p_lnspec.h"
#include "p_terrain.h"
#include "p_acs.h"
#include "p_3dmidtex.h"
#include "g_game.h"
#include "a_sharedglobal.h"
#include "a_keys.h"
#include "c_dispatch.h"
#include "r_sky.h"
#include "d_player.h"
#include "g_levellocals.h"
#include "actorinlines.h"
#include "vm.h"
#include "p_setup.h"
#include "c_console.h"
#include "p_spec_thinkers.h"
#include "maploader/maploader.h"
EXTERN_CVAR(Bool, forcewater)
//-----------------------------------------------------------------------------
//
// Portals
//
//-----------------------------------------------------------------------------
//============================================================================
//
// Spawns a single line portal
//
//============================================================================
void MapLoader::SpawnLinePortal(line_t* line)
{
// portal destination is special argument #0
line_t* dst = nullptr;
if (line->args[2] >= PORTT_VISUAL && line->args[2] <= PORTT_LINKED)
{
dst = Level->FindPortalDestination(line, line->args[0]);
line->portalindex = Level->linePortals.Reserve(1);
FLinePortal *port = &Level->linePortals.Last();
memset(port, 0, sizeof(FLinePortal));
port->mOrigin = line;
port->mDestination = dst;
port->mType = uint8_t(line->args[2]); // range check is done above.
if (port->mType == PORTT_LINKED)
{
// Linked portals have no z-offset ever.
port->mAlign = PORG_ABSOLUTE;
}
else
{
port->mAlign = uint8_t(line->args[3] >= PORG_ABSOLUTE && line->args[3] <= PORG_CEILING ? line->args[3] : PORG_ABSOLUTE);
if (port->mType == PORTT_INTERACTIVE && port->mAlign != PORG_ABSOLUTE)
{
// Due to the way z is often handled, these pose a major issue for parts of the code that needs to transparently handle interactive portals.
Printf(TEXTCOLOR_RED "Warning: z-offsetting not allowed for interactive portals. Changing line %d to teleport-portal!\n", line->Index());
port->mType = PORTT_TELEPORT;
}
}
port->mDefFlags = port->mType == PORTT_VISUAL ? PORTF_VISIBLE :
port->mType == PORTT_TELEPORT ? PORTF_TYPETELEPORT :
PORTF_TYPEINTERACTIVE;
}
else if (line->args[2] == PORTT_LINKEDEE && line->args[0] == 0)
{
// EE-style portals require that the first line ID is identical and the first arg of the two linked linedefs are 0 and 1 respectively.
int mytag = Level->GetFirstLineId(line);
for (auto &ln : Level->lines)
{
if (Level->GetFirstLineId(&ln) == mytag && ln.args[0] == 1 && ln.special == Line_SetPortal)
{
line->portalindex = Level->linePortals.Reserve(1);
FLinePortal *port = &Level->linePortals.Last();
memset(port, 0, sizeof(FLinePortal));
port->mOrigin = line;
port->mDestination = &ln;
port->mType = PORTT_LINKED;
port->mAlign = PORG_ABSOLUTE;
port->mDefFlags = PORTF_TYPEINTERACTIVE;
// we need to create the backlink here, too.
ln.portalindex = Level->linePortals.Reserve(1);
port = &Level->linePortals.Last();
memset(port, 0, sizeof(FLinePortal));
port->mOrigin = &ln;
port->mDestination = line;
port->mType = PORTT_LINKED;
port->mAlign = PORG_ABSOLUTE;
port->mDefFlags = PORTF_TYPEINTERACTIVE;
}
}
}
else
{
// undefined type
return;
}
}
//-----------------------------------------------------------------------------
//
// Lower stacks go in the bottom sector.
//
//-----------------------------------------------------------------------------
void MapLoader::SetupFloorPortal (AActor *point)
{
auto it = Level->GetActorIterator(NAME_LowerStackLookOnly, point->tid);
sector_t *Sector = point->Sector;
auto skyv = it.Next();
if (skyv != nullptr)
{
skyv->target = point;
if (Sector->GetAlpha(sector_t::floor) == 1.)
Sector->SetAlpha(sector_t::floor, clamp(point->args[0], 0, 255) / 255.);
Sector->Portals[sector_t::floor] = Level->GetStackPortal(skyv, sector_t::floor);
}
}
//-----------------------------------------------------------------------------
//
// Upper stacks go in the top sector.
//
//-----------------------------------------------------------------------------
void MapLoader::SetupCeilingPortal (AActor *point)
{
auto it = Level->GetActorIterator(NAME_UpperStackLookOnly, point->tid);
sector_t *Sector = point->Sector;
auto skyv = it.Next();
if (skyv != nullptr)
{
skyv->target = point;
if (Sector->GetAlpha(sector_t::ceiling) == 1.)
Sector->SetAlpha(sector_t::ceiling, clamp(point->args[0], 0, 255) / 255.);
Sector->Portals[sector_t::ceiling] = Level->GetStackPortal(skyv, sector_t::ceiling);
}
}
//-----------------------------------------------------------------------------
//
//
//
//-----------------------------------------------------------------------------
void MapLoader::SetupPortals()
{
auto it = Level->GetThinkerIterator<AActor>(NAME_StackPoint);
AActor *pt;
TArray<AActor *> points;
while ((pt = it.Next()))
{
FName nm = pt->GetClass()->TypeName;
if (nm == NAME_UpperStackLookOnly)
{
SetupFloorPortal(pt);
}
else if (nm == NAME_LowerStackLookOnly)
{
SetupCeilingPortal(pt);
}
pt->special1 = 0;
points.Push(pt);
}
// the semantics here are incredibly lax so the final setup can only be done once all portals have been created,
// because later stackpoints will happily overwrite info in older ones, if there are multiple links.
for (auto &s : Level->sectorPortals)
{
if (s.mType == PORTS_STACKEDSECTORTHING && s.mSkybox)
{
for (auto &ss : Level->sectorPortals)
{
if (ss.mType == PORTS_STACKEDSECTORTHING && ss.mSkybox == s.mSkybox->target)
{
s.mPartner = unsigned((&ss) - &Level->sectorPortals[0]);
}
}
}
}
// Now we can finally set the displacement and delete the stackpoint reference.
for (auto &s : Level->sectorPortals)
{
if (s.mType == PORTS_STACKEDSECTORTHING && s.mSkybox)
{
s.mDisplacement = s.mSkybox->Pos() - s.mSkybox->target->Pos();
s.mSkybox = nullptr;
}
}
}
//-----------------------------------------------------------------------------
//
//
//
//-----------------------------------------------------------------------------
void MapLoader::SetPortal(sector_t *sector, int plane, unsigned pnum, double alpha)
{
// plane: 0=floor, 1=ceiling, 2=both
if (plane > 0)
{
if (sector->GetPortalType(sector_t::ceiling) == PORTS_SKYVIEWPOINT)
{
sector->Portals[sector_t::ceiling] = pnum;
if (sector->GetAlpha(sector_t::ceiling) == 1.)
sector->SetAlpha(sector_t::ceiling, alpha);
if (Level->sectorPortals[pnum].mFlags & PORTSF_SKYFLATONLY)
sector->SetTexture(sector_t::ceiling, skyflatnum);
}
}
if (plane == 2 || plane == 0)
{
if (sector->GetPortalType(sector_t::floor) == PORTS_SKYVIEWPOINT)
{
sector->Portals[sector_t::floor] = pnum;
}
if (sector->GetAlpha(sector_t::floor) == 1.)
sector->SetAlpha(sector_t::floor, alpha);
if (Level->sectorPortals[pnum].mFlags & PORTSF_SKYFLATONLY)
sector->SetTexture(sector_t::floor, skyflatnum);
}
}
//-----------------------------------------------------------------------------
//
//
//
//-----------------------------------------------------------------------------
void MapLoader::CopyPortal(int sectortag, int plane, unsigned pnum, double alpha, bool tolines)
{
int s;
auto itr = Level->GetSectorTagIterator(sectortag);
while ((s = itr.Next()) >= 0)
{
SetPortal(&Level->sectors[s], plane, pnum, alpha);
}
for (auto &line : Level->lines)
{
// Check if this portal needs to be copied to other sectors
// This must be done here to ensure that it gets done only after the portal is set up
if (line.special == Sector_SetPortal &&
line.args[1] == 1 &&
(line.args[2] == plane || line.args[2] == 3) &&
line.args[3] == sectortag)
{
if (line.args[0] == 0)
{
SetPortal(line.frontsector, plane, pnum, alpha);
}
else
{
auto itr = Level->GetSectorTagIterator(line.args[0]);
while ((s = itr.Next()) >= 0)
{
SetPortal(&Level->sectors[s], plane, pnum, alpha);
}
}
}
if (tolines && line.special == Sector_SetPortal &&
line.args[1] == 5 &&
line.args[3] == sectortag)
{
if (line.args[0] == 0)
{
line.portaltransferred = pnum;
}
else
{
auto itr = Level->GetLineIdIterator(line.args[0]);
while ((s = itr.Next()) >= 0)
{
Level->lines[s].portaltransferred = pnum;
}
}
}
}
}
//-----------------------------------------------------------------------------
//
//
//
//-----------------------------------------------------------------------------
void MapLoader::SpawnPortal(line_t *line, int sectortag, int plane, int bytealpha, int linked)
{
if (plane < 0 || plane > 2 || (linked && plane == 2)) return;
for (auto &oline : Level->lines)
{
// We must look for the reference line with a linear search unless we want to waste the line ID for it
// which is not a good idea.
if (oline.special == Sector_SetPortal &&
oline.args[0] == sectortag &&
oline.args[1] == linked &&
oline.args[2] == plane &&
oline.args[3] == 1)
{
// beware of overflows.
DVector2 pos1 = line->v1->fPos() + line->Delta() / 2;
DVector2 pos2 = oline.v1->fPos() + oline.Delta() / 2;
unsigned pnum = Level->GetPortal(linked ? PORTS_LINKEDPORTAL : PORTS_PORTAL, plane, line->frontsector, oline.frontsector, pos2 - pos1);
CopyPortal(sectortag, plane, pnum, bytealpha / 255., false);
return;
}
}
}
//-----------------------------------------------------------------------------
//
// This searches the viewpoint's sector
// for a skybox line special, gets its tag and transfers the skybox to all tagged sectors.
//
//-----------------------------------------------------------------------------
void MapLoader::SpawnSkybox(AActor *origin)
{
sector_t *Sector = origin->Sector;
if (Sector == NULL)
{
Printf("Sector not initialized for SkyCamCompat\n");
origin->Sector = Sector = P_PointInSector(origin->Pos());
}
if (Sector)
{
for(auto refline : Sector->Lines)
{
if (refline->special == Sector_SetPortal && refline->args[1] == 2)
{
// We found the setup linedef for this skybox, so let's use it for our init.
unsigned pnum = Level->GetSkyboxPortal(origin);
CopyPortal(refline->args[0], refline->args[2], pnum, 0, true);
return;
}
}
}
}
//-----------------------------------------------------------------------------
//
// P_SetSectorDamage
//
// Sets damage properties for one sector. Allows combination of original specials with explicit use of the damage properties
//
//-----------------------------------------------------------------------------
static void SetupSectorDamage(sector_t *sector, int damage, int interval, int leakchance, FName type, int flags)
{
// Only set if damage is not yet initialized. This ensures that UDMF takes precedence over sector specials.
if (sector->damageamount == 0)
{
sector->damageamount = damage;
sector->damageinterval = MAX(1, interval);
sector->leakydamage = leakchance;
sector->damagetype = type;
sector->Flags = (sector->Flags & ~SECF_DAMAGEFLAGS) | (flags & SECF_DAMAGEFLAGS);
}
}
//-----------------------------------------------------------------------------
//
// P_InitSectorSpecial
//
// Sets up everything derived from 'sector->special' for one sector
// ('fromload' is necessary to allow conversion upon savegame load.)
//
//-----------------------------------------------------------------------------
void MapLoader::InitSectorSpecial(sector_t *sector, int special)
{
// [RH] All secret sectors are marked with a BOOM-ish bitfield
if (sector->special & SECRET_MASK)
{
sector->Flags |= SECF_SECRET | SECF_WASSECRET;
Level->total_secrets++;
}
if (sector->special & FRICTION_MASK)
{
sector->Flags |= SECF_FRICTION;
}
if (sector->special & PUSH_MASK)
{
sector->Flags |= SECF_PUSH;
}
if ((sector->special & DAMAGE_MASK) == 0x100)
{
SetupSectorDamage(sector, 5, 32, 0, NAME_Fire, 0);
}
else if ((sector->special & DAMAGE_MASK) == 0x200)
{
SetupSectorDamage(sector, 10, 32, 0, NAME_Slime, 0);
}
else if ((sector->special & DAMAGE_MASK) == 0x300)
{
SetupSectorDamage(sector, 20, 32, 5, NAME_Slime, 0);
}
sector->special &= 0xff;
// [RH] Normal DOOM special or BOOM specialized?
bool keepspecial = false;
SpawnLights(sector);
switch (sector->special)
{
case dLight_Strobe_Hurt:
SetupSectorDamage(sector, 20, 32, 5, NAME_Slime, 0);
break;
case dDamage_Hellslime:
SetupSectorDamage(sector, 10, 32, 0, NAME_Slime, 0);
break;
case dDamage_Nukage:
SetupSectorDamage(sector, 5, 32, 0, NAME_Slime, 0);
break;
case dSector_DoorCloseIn30:
Level->CreateThinker<DDoor>(sector, DDoor::doorWaitClose, 2, 0, 0, 30 * TICRATE);
break;
case dDamage_End:
SetupSectorDamage(sector, 20, 32, 256, NAME_None, SECF_ENDGODMODE|SECF_ENDLEVEL);
break;
case dSector_DoorRaiseIn5Mins:
Level->CreateThinker<DDoor> (sector, DDoor::doorWaitRaise, 2, TICRATE*30/7, 0, 5*60*TICRATE);
break;
case dFriction_Low:
sector->friction = FRICTION_LOW;
sector->movefactor = 0x269/65536.;
sector->Flags |= SECF_FRICTION;
break;
case dDamage_SuperHellslime:
SetupSectorDamage(sector, 20, 32, 5, NAME_Slime, 0);
break;
case dDamage_LavaWimpy:
SetupSectorDamage(sector, 5, 16, 256, NAME_Fire, SECF_DMGTERRAINFX);
break;
case dDamage_LavaHefty:
SetupSectorDamage(sector, 8, 16, 256, NAME_Fire, SECF_DMGTERRAINFX);
break;
case dScroll_EastLavaDamage:
SetupSectorDamage(sector, 5, 16, 256, NAME_Fire, SECF_DMGTERRAINFX);
CreateScroller(EScroll::sc_floor, -4., 0, sector, 0);
keepspecial = true;
break;
case hDamage_Sludge:
SetupSectorDamage(sector, 4, 32, 0, NAME_Slime, 0);
break;
case sLight_Strobe_Hurt:
SetupSectorDamage(sector, 5, 32, 0, NAME_Slime, 0);
break;
case sDamage_Hellslime:
SetupSectorDamage(sector, 2, 32, 0, NAME_Slime, SECF_HAZARD);
break;
case Damage_InstantDeath:
// Strife's instant death sector
SetupSectorDamage(sector, TELEFRAG_DAMAGE, 1, 256, NAME_InstantDeath, 0);
break;
case sDamage_SuperHellslime:
SetupSectorDamage(sector, 4, 32, 0, NAME_Slime, SECF_HAZARD);
break;
case Sector_Hidden:
sector->MoreFlags |= SECMF_HIDDEN;
break;
case Sector_Heal:
// CoD's healing sector
SetupSectorDamage(sector, -1, 32, 0, NAME_None, 0);
break;
case Sky2:
sector->sky = PL_SKYFLAT;
break;
default:
if (sector->special >= Scroll_North_Slow && sector->special <= Scroll_SouthWest_Fast)
{ // Hexen scroll special
static const int8_t hexenScrollies[24][2] =
{
{ 0, 1 }, { 0, 2 }, { 0, 4 },
{ -1, 0 }, { -2, 0 }, { -4, 0 },
{ 0, -1 }, { 0, -2 }, { 0, -4 },
{ 1, 0 }, { 2, 0 }, { 4, 0 },
{ 1, 1 }, { 2, 2 }, { 4, 4 },
{ -1, 1 }, { -2, 2 }, { -4, 4 },
{ -1, -1 }, { -2, -2 }, { -4, -4 },
{ 1, -1 }, { 2, -2 }, { 4, -4 }
};
int i = sector->special - Scroll_North_Slow;
double dx = hexenScrollies[i][0] / 2.;
double dy = hexenScrollies[i][1] / 2.;
CreateScroller(EScroll::sc_floor, dx, dy, sector, 0);
}
else if (sector->special >= Carry_East5 && sector->special <= Carry_East35)
{
// Heretic scroll special
// Only east scrollers also scroll the texture
CreateScroller(EScroll::sc_floor, -0.5 * (1 << ((sector->special & 0xff) - Carry_East5)), 0, sector, 0);
}
keepspecial = true;
break;
}
if (!keepspecial) sector->special = 0;
}
//-----------------------------------------------------------------------------
//
// P_SpawnSpecials
//
// After the map has been loaded, scan for specials that spawn thinkers
//
//-----------------------------------------------------------------------------
void MapLoader::SpawnSpecials ()
{
SetupPortals();
for (auto &sec : Level->sectors)
{
if (sec.special == 0)
continue;
InitSectorSpecial(&sec, sec.special);
}
ProcessEDSectors();
// Init other misc stuff
SpawnScrollers(); // killough 3/7/98: Add generalized scrollers
SpawnFriction(); // phares 3/12/98: New friction model using linedefs
SpawnPushers(); // phares 3/20/98: New pusher model using linedefs
auto it2 = Level->GetThinkerIterator<AActor>(NAME_SkyCamCompat);
AActor *pt2;
while ((pt2 = it2.Next()))
{
SpawnSkybox(pt2);
}
for (auto &line : Level->lines)
{
switch (line.special)
{
int s;
sector_t *sec;
// killough 3/7/98:
// support for drawn heights coming from different sector
case Transfer_Heights:
{
sec = line.frontsector;
if (line.args[1] & 2)
{
sec->MoreFlags |= SECMF_FAKEFLOORONLY;
}
if (line.args[1] & 4)
{
sec->MoreFlags |= SECMF_CLIPFAKEPLANES;
}
if (line.args[1] & 8)
{
sec->MoreFlags |= SECMF_UNDERWATER;
}
else if (forcewater)
{
sec->MoreFlags |= SECMF_FORCEDUNDERWATER;
}
if (line.args[1] & 16)
{
sec->MoreFlags |= SECMF_IGNOREHEIGHTSEC;
}
else Level->HasHeightSecs = true;
if (line.args[1] & 32)
{
sec->MoreFlags |= SECMF_NOFAKELIGHT;
}
auto itr = Level->GetSectorTagIterator(line.args[0]);
while ((s = itr.Next()) >= 0)
{
Level->sectors[s].heightsec = sec;
sec->e->FakeFloor.Sectors.Push(&Level->sectors[s]);
Level->sectors[s].MoreFlags |= (sec->MoreFlags & SECMF_IGNOREHEIGHTSEC); // copy this to the destination sector for easier checking.
Level->sectors[s].AdjustFloorClip();
}
break;
}
// killough 3/16/98: Add support for setting
// floor lighting independently (e.g. lava)
case Transfer_FloorLight:
Level->CreateThinker<DLightTransfer> (line.frontsector, line.args[0], true);
break;
// killough 4/11/98: Add support for setting
// ceiling lighting independently
case Transfer_CeilingLight:
Level->CreateThinker<DLightTransfer> (line.frontsector, line.args[0], false);
break;
// [Graf Zahl] Add support for setting lighting
// per wall independently
case Transfer_WallLight:
Level->CreateThinker<DWallLightTransfer> (line.frontsector, line.args[0], line.args[1]);
break;
case Sector_Attach3dMidtex:
P_Attach3dMidtexLinesToSector(line.frontsector, line.args[0], line.args[1], !!line.args[2]);
break;
case Sector_SetLink:
if (line.args[0] == 0)
{
P_AddSectorLinks(line.frontsector, line.args[1], line.args[2], line.args[3]);
}
break;
case Sector_SetPortal:
// arg 0 = sector tag
// arg 1 = type
// - 0: normal (handled here)
// - 1: copy (handled by the portal they copy)
// - 2: EE-style skybox (handled by the camera object)
// - 3: EE-style flat portal (GZDoom HW renderer only for now)
// - 4: EE-style horizon portal (GZDoom HW renderer only for now)
// - 5: copy portal to line (GZDoom HW renderer only for now)
// - 6: linked portal
// other values reserved for later use
// arg 2 = 0:floor, 1:ceiling, 2:both
// arg 3 = 0: anchor, 1: reference line
// arg 4 = for the anchor only: alpha
if ((line.args[1] == 0 || line.args[1] == 6) && line.args[3] == 0)
{
SpawnPortal(&line, line.args[0], line.args[2], line.args[4], line.args[1]);
}
else if (line.args[1] == 3 || line.args[1] == 4)
{
unsigned pnum = Level->GetPortal(line.args[1] == 3 ? PORTS_PLANE : PORTS_HORIZON, line.args[2], line.frontsector, NULL, { 0,0 });
CopyPortal(line.args[0], line.args[2], pnum, 0, true);
}
break;
case Line_SetPortal:
SpawnLinePortal(&line);
break;
// [RH] ZDoom Static_Init settings
case Static_Init:
switch (line.args[1])
{
case Init_Gravity:
{
double grav = line.Delta().Length() / 100.;
auto itr = Level->GetSectorTagIterator(line.args[0]);
while ((s = itr.Next()) >= 0)
Level->sectors[s].gravity = grav;
}
break;
//case Init_Color:
// handled in P_LoadSideDefs2()
case Init_Damage:
{
int damage = int(line.Delta().Length());
auto itr = Level->GetSectorTagIterator(line.args[0]);
while ((s = itr.Next()) >= 0)
{
sector_t *sec = &Level->sectors[s];
sec->damageamount = damage;
sec->damagetype = NAME_None;
if (sec->damageamount < 20)
{
sec->leakydamage = 0;
sec->damageinterval = 32;
}
else if (sec->damageamount < 50)
{
sec->leakydamage = 5;
sec->damageinterval = 32;
}
else
{
sec->leakydamage = 256;
sec->damageinterval = 1;
}
}
}
break;
case Init_SectorLink:
if (line.args[3] == 0)
P_AddSectorLinksByID(line.frontsector, line.args[0], line.args[2]);
break;
// killough 10/98:
//
// Support for sky textures being transferred from sidedefs.
// Allows scrolling and other effects (but if scrolling is
// used, then the same sector tag needs to be used for the
// sky sector, the sky-transfer linedef, and the scroll-effect
// linedef). Still requires user to use F_SKY1 for the floor
// or ceiling texture, to distinguish floor and ceiling sky.
case Init_TransferSky:
{
auto itr = Level->GetSectorTagIterator(line.args[0]);
while ((s = itr.Next()) >= 0)
Level->sectors[s].sky = (line.Index() + 1) | PL_SKYFLAT;
break;
}
}
break;
}
}
// [RH] Start running any open scripts on this map
Level->Behaviors.StartTypedScripts (SCRIPT_Open, NULL, false);
}
//-----------------------------------------------------------------------------
//
//
//
//-----------------------------------------------------------------------------
void MapLoader::SpawnFriction()
{
line_t *l = &Level->lines[0];
for (unsigned i = 0 ; i < Level->lines.Size() ; i++,l++)
{
if (l->special == Sector_SetFriction)
{
int length;
if (l->args[1])
{ // [RH] Allow setting friction amount from parameter
length = l->args[1] <= 200 ? l->args[1] : 200;
}
else
{
length = int(l->Delta().Length());
}
P_SetSectorFriction (Level, l->args[0], length, false);
l->special = 0;
}
}
}
//==========================================================================
//
// Creates all 3D floors defined by one linedef
//
//==========================================================================
int MapLoader::Set3DFloor(line_t * line, int param, int param2, int alpha)
{
int s;
int flags;
int tag = line->args[0];
sector_t * sec = line->frontsector, *ss;
auto itr = Level->GetSectorTagIterator(tag);
while ((s = itr.Next()) >= 0)
{
ss = &Level->sectors[s];
if (param == 0)
{
flags = FF_EXISTS | FF_RENDERALL | FF_SOLID | FF_INVERTSECTOR;
alpha = 255;
for (auto l: sec->Lines)
{
if (l->special == Sector_SetContents && l->frontsector == sec)
{
alpha = clamp<int>(l->args[1], 0, 100);
if (l->args[2] & 1) flags &= ~FF_SOLID;
if (l->args[2] & 2) flags |= FF_SEETHROUGH;
if (l->args[2] & 4) flags |= FF_SHOOTTHROUGH;
if (l->args[2] & 8) flags |= FF_ADDITIVETRANS;
if (alpha != 100) flags |= FF_TRANSLUCENT;//|FF_BOTHPLANES|FF_ALLSIDES;
if (l->args[0])
{
// Yes, Vavoom's 3D-floor definitions suck!
// The content list changed in r1783 of Vavoom to be unified
// among all its supported games, so it has now ten different
// values instead of just five.
static uint32_t vavoomcolors[] = { VC_EMPTY,
VC_WATER, VC_LAVA, VC_NUKAGE, VC_SLIME, VC_HELLSLIME,
VC_BLOOD, VC_SLUDGE, VC_HAZARD, VC_BOOMWATER };
flags |= FF_SWIMMABLE | FF_BOTHPLANES | FF_ALLSIDES | FF_FLOOD;
l->frontsector->Colormap.FadeColor = vavoomcolors[l->args[0]] & VC_COLORMASK;
l->frontsector->Colormap.FogDensity = 0;
}
alpha = (alpha * 255) / 100;
break;
}
}
}
else if (param == 4)
{
flags = FF_EXISTS | FF_RENDERPLANES | FF_INVERTPLANES | FF_NOSHADE | FF_FIX;
if (param2 & 1) flags |= FF_SEETHROUGH; // marker for allowing missing texture checks
alpha = 255;
}
else
{
static const int defflags[] = { 0,
FF_SOLID,
FF_SWIMMABLE | FF_BOTHPLANES | FF_ALLSIDES | FF_SHOOTTHROUGH | FF_SEETHROUGH,
FF_SHOOTTHROUGH | FF_SEETHROUGH,
};
flags = defflags[param & 3] | FF_EXISTS | FF_RENDERALL;
if (param & 4) flags |= FF_ALLSIDES | FF_BOTHPLANES;
if (param & 16) flags ^= FF_SEETHROUGH;
if (param & 32) flags ^= FF_SHOOTTHROUGH;
if (param2 & 1) flags |= FF_NOSHADE;
if (param2 & 2) flags |= FF_DOUBLESHADOW;
if (param2 & 4) flags |= FF_FOG;
if (param2 & 8) flags |= FF_THINFLOOR;
if (param2 & 16) flags |= FF_UPPERTEXTURE;
if (param2 & 32) flags |= FF_LOWERTEXTURE;
if (param2 & 64) flags |= FF_ADDITIVETRANS | FF_TRANSLUCENT;
// if flooding is used the floor must be non-solid and is automatically made shootthrough and seethrough
if ((param2 & 128) && !(flags & FF_SOLID)) flags |= FF_FLOOD | FF_SEETHROUGH | FF_SHOOTTHROUGH;
if (param2 & 512) flags |= FF_FADEWALLS;
if (param2&1024) flags |= FF_RESET;
FTextureID tex = line->sidedef[0]->GetTexture(side_t::top);
if (!tex.Exists() && alpha < 255)
{
alpha = -tex.GetIndex();
}
alpha = clamp(alpha, 0, 255);
if (alpha == 0) flags &= ~(FF_RENDERALL | FF_BOTHPLANES | FF_ALLSIDES);
else if (alpha != 255) flags |= FF_TRANSLUCENT;
}
P_Add3DFloor(ss, sec, line, flags, alpha);
}
// To be 100% safe this should be done even if the alpha by texture value isn't used.
if (!line->sidedef[0]->GetTexture(side_t::top).isValid())
line->sidedef[0]->SetTexture(side_t::top, FNullTextureID());
return 1;
}
//==========================================================================
//
// Spawns 3D floors
//
//==========================================================================
void MapLoader::Spawn3DFloors ()
{
static int flagvals[] = {512, 2+512, 512+1024};
for (auto &line : Level->lines)
{
switch(line.special)
{
case ExtraFloor_LightOnly:
if (line.args[1] < 0 || line.args[1] > 2) line.args[1] = 0;
if (line.args[0] != 0)
Set3DFloor(&line, 3, flagvals[line.args[1]], 0);
break;
case Sector_Set3DFloor:
// The flag high-byte/line id is only needed in Hexen format.
// UDMF can set both of these parameters without any restriction of the usable values.
// In Doom format the translators can take full integers for the tag and the line ID always is the same as the tag.
if (Level->maptype == MAPTYPE_HEXEN)
{
if (line.args[1]&8)
{
Level->tagManager.AddLineID(line.Index(), line.args[4]);
}
else
{
line.args[0]+=256*line.args[4];
line.args[4]=0;
}
}
Set3DFloor(&line, line.args[1]&~8, line.args[2], line.args[3]);
break;
default:
continue;
}
line.special=0;
line.args[0] = line.args[1] = line.args[2] = line.args[3] = line.args[4] = 0;
}
for (auto &sec : Level->sectors)
{
P_Recalculate3DFloors(&sec);
}
}
//==========================================================================
//
// Spawns light effects
//
//==========================================================================
void MapLoader::SpawnLights(sector_t *sector)
{
const int STROBEBRIGHT = 5;
const int FASTDARK = 15;
const int SLOWDARK = TICRATE;
switch (sector->special)
{
case Light_Phased:
Level->CreateThinker<DPhased>(sector, 48, 63 - (sector->lightlevel & 63));
break;
// [RH] Hexen-like phased lighting
case LightSequenceStart:
Level->CreateThinker<DPhased>(sector);
break;
case dLight_Flicker:
Level->CreateThinker<DLightFlash>(sector);
break;
case dLight_StrobeFast:
Level->CreateThinker<DStrobe>(sector, STROBEBRIGHT, FASTDARK, false);
break;
case dLight_StrobeSlow:
Level->CreateThinker<DStrobe>(sector, STROBEBRIGHT, SLOWDARK, false);
break;
case dLight_Strobe_Hurt:
Level->CreateThinker<DStrobe>(sector, STROBEBRIGHT, FASTDARK, false);
break;
case dLight_Glow:
Level->CreateThinker<DGlow>(sector);
break;
case dLight_StrobeSlowSync:
Level->CreateThinker<DStrobe>(sector, STROBEBRIGHT, SLOWDARK, true);
break;
case dLight_StrobeFastSync:
Level->CreateThinker<DStrobe>(sector, STROBEBRIGHT, FASTDARK, true);
break;
case dLight_FireFlicker:
Level->CreateThinker<DFireFlicker>(sector);
break;
case dScroll_EastLavaDamage:
Level->CreateThinker<DStrobe>(sector, STROBEBRIGHT, FASTDARK, false);
break;
case sLight_Strobe_Hurt:
Level->CreateThinker<DStrobe>(sector, STROBEBRIGHT, FASTDARK, false);
break;
default:
break;
}
}
/////////////////////////////
//
// P_GetPushThing() returns a pointer to an MT_PUSH or MT_PULL thing,
// NULL otherwise.
AActor *MapLoader::GetPushThing(int s)
{
AActor* thing;
sector_t* sec;
sec = &Level->sectors[s];
thing = sec->thinglist;
while (thing &&
thing->GetClass()->TypeName != NAME_PointPusher &&
thing->GetClass()->TypeName != NAME_PointPuller)
{
thing = thing->snext;
}
return thing;
}
/////////////////////////////
//
// Initialize the sectors where pushers are present
//
void MapLoader::SpawnPushers()
{
line_t *l = &Level->lines[0];
int s;
for (unsigned i = 0; i < Level->lines.Size(); i++, l++)
{
switch (l->special)
{
case Sector_SetWind: // wind
{
auto itr = Level->GetSectorTagIterator(l->args[0]);
while ((s = itr.Next()) >= 0)
Level->CreateThinker<DPusher>(DPusher::p_wind, l->args[3] ? l : nullptr, l->args[1], l->args[2], nullptr, s);
l->special = 0;
break;
}
case Sector_SetCurrent: // current
{
auto itr = Level->GetSectorTagIterator(l->args[0]);
while ((s = itr.Next()) >= 0)
Level->CreateThinker<DPusher>(DPusher::p_current, l->args[3] ? l : nullptr, l->args[1], l->args[2], nullptr, s);
l->special = 0;
break;
}
case PointPush_SetForce: // push/pull
if (l->args[0]) { // [RH] Find thing by sector
auto itr = Level->GetSectorTagIterator(l->args[0]);
while ((s = itr.Next()) >= 0)
{
AActor *thing = GetPushThing(s);
if (thing) { // No MT_P* means no effect
// [RH] Allow narrowing it down by tid
if (!l->args[1] || l->args[1] == thing->tid)
Level->CreateThinker<DPusher>(DPusher::p_push, l->args[3] ? l : NULL, l->args[2],
0, thing, s);
}
}
}
else { // [RH] Find thing by tid
AActor *thing;
auto iterator = Level->GetActorIterator(l->args[1]);
while ((thing = iterator.Next()))
{
if (thing->GetClass()->TypeName == NAME_PointPusher ||
thing->GetClass()->TypeName == NAME_PointPuller)
{
Level->CreateThinker<DPusher>(DPusher::p_push, l->args[3] ? l : NULL, l->args[2], 0, thing, thing->Sector->Index());
}
}
}
l->special = 0;
break;
}
}
}
//-----------------------------------------------------------------------------
//
// Initialize the scrollers
//
//-----------------------------------------------------------------------------
void MapLoader::SpawnScrollers()
{
auto SCROLLTYPE = [](int i) { return EScrollPos((i <= 0) || (i & ~7) ? 7 : i); };
line_t *l = &Level->lines[0];
side_t *side;
TArray<int> copyscrollers;
for (auto &line : Level->lines)
{
if (line.special == Sector_CopyScroller)
{
// don't allow copying the scroller if the sector has the same tag as it would just duplicate it.
if (!Level->SectorHasTag(line.frontsector, line.args[0]))
{
copyscrollers.Push(line.Index());
}
line.special = 0;
}
}
for (unsigned i = 0; i < Level->lines.Size(); i++, l++)
{
double dx; // direction and speed of scrolling
double dy;
sector_t *control = nullptr;
int accel = 0; // no control sector or acceleration
int special = l->special;
// Check for undefined parameters that are non-zero and output messages for them.
// We don't report for specials we don't understand.
FLineSpecial *spec = P_GetLineSpecialInfo(special);
if (spec != nullptr)
{
int max = spec->map_args;
for (unsigned arg = max; arg < countof(l->args); ++arg)
{
if (l->args[arg] != 0)
{
Printf("Line %d (type %d:%s), arg %u is %d (should be 0)\n",
i, special, spec->name, arg + 1, l->args[arg]);
}
}
}
// killough 3/7/98: Types 245-249 are same as 250-254 except that the
// first side's sector's heights cause scrolling when they change, and
// this linedef controls the direction and speed of the scrolling. The
// most complicated linedef since donuts, but powerful :)
//
// killough 3/15/98: Add acceleration. Types 214-218 are the same but
// are accelerative.
// [RH] Assume that it's a scroller and zero the line's special.
l->special = 0;
dx = dy = 0; // Shut up, GCC
if (special == Scroll_Ceiling ||
special == Scroll_Floor ||
special == Scroll_Texture_Model)
{
if (l->args[1] & 3)
{
// if 1, then displacement
// if 2, then accelerative (also if 3)
control = l->sidedef[0]->sector;
if (l->args[1] & 2)
accel = 1;
}
if (special == Scroll_Texture_Model || l->args[1] & 4)
{
// The line housing the special controls the
// direction and speed of scrolling.
dx = l->Delta().X / 32.;
dy = l->Delta().Y / 32.;
}
else
{
// The speed and direction are parameters to the special.
dx = (l->args[3] - 128) / 32.;
dy = (l->args[4] - 128) / 32.;
}
}
switch (special)
{
int s;
case Scroll_Ceiling:
{
auto itr = Level->GetSectorTagIterator(l->args[0]);
while ((s = itr.Next()) >= 0)
{
Level->CreateThinker<DScroller>(EScroll::sc_ceiling, -dx, dy, control, &Level->sectors[s], nullptr, accel);
}
for (unsigned j = 0; j < copyscrollers.Size(); j++)
{
line_t *line = &Level->lines[copyscrollers[j]];
if (line->args[0] == l->args[0] && (line->args[1] & 1))
{
Level->CreateThinker<DScroller>(EScroll::sc_ceiling, -dx, dy, control, line->frontsector, nullptr, accel);
}
}
break;
}
case Scroll_Floor:
if (l->args[2] != 1)
{ // scroll the floor texture
auto itr = Level->GetSectorTagIterator(l->args[0]);
while ((s = itr.Next()) >= 0)
{
Level->CreateThinker<DScroller>(EScroll::sc_floor, -dx, dy, control, &Level->sectors[s], nullptr, accel);
}
for (unsigned j = 0; j < copyscrollers.Size(); j++)
{
line_t *line = &Level->lines[copyscrollers[j]];
if (line->args[0] == l->args[0] && (line->args[1] & 2))
{
Level->CreateThinker<DScroller>(EScroll::sc_floor, -dx, dy, control, line->frontsector, nullptr, accel);
}
}
}
if (l->args[2] > 0)
{ // carry objects on the floor
auto itr = Level->GetSectorTagIterator(l->args[0]);
while ((s = itr.Next()) >= 0)
{
Level->CreateThinker<DScroller>(EScroll::sc_carry, dx, dy, control, &Level->sectors[s], nullptr, accel);
}
for (unsigned j = 0; j < copyscrollers.Size(); j++)
{
line_t *line = &Level->lines[copyscrollers[j]];
if (line->args[0] == l->args[0] && (line->args[1] & 4))
{
Level->CreateThinker<DScroller>(EScroll::sc_carry, dx, dy, control, line->frontsector, nullptr, accel);
}
}
}
break;
// killough 3/1/98: scroll wall according to linedef
// (same direction and speed as scrolling floors)
case Scroll_Texture_Model:
{
auto itr = Level->GetLineIdIterator(l->args[0]);
while ((s = itr.Next()) >= 0)
{
if (s != (int)i)
Level->CreateThinker<DScroller>(dx, dy, &Level->lines[s], control, accel);
}
break;
}
case Scroll_Texture_Offsets:
// killough 3/2/98: scroll according to sidedef offsets
side = Level->lines[i].sidedef[0];
Level->CreateThinker<DScroller>(EScroll::sc_side, -side->GetTextureXOffset(side_t::mid),
side->GetTextureYOffset(side_t::mid), nullptr, nullptr, side, accel, SCROLLTYPE(l->args[0]));
break;
case Scroll_Texture_Left:
l->special = special; // Restore the special, for compat_useblocking's benefit.
side = Level->lines[i].sidedef[0];
Level->CreateThinker<DScroller>(EScroll::sc_side, l->args[0] / 64., 0, nullptr, nullptr, side, accel, SCROLLTYPE(l->args[1]));
break;
case Scroll_Texture_Right:
l->special = special;
side = Level->lines[i].sidedef[0];
Level->CreateThinker<DScroller>(EScroll::sc_side, -l->args[0] / 64., 0, nullptr, nullptr, side, accel, SCROLLTYPE(l->args[1]));
break;
case Scroll_Texture_Up:
l->special = special;
side = Level->lines[i].sidedef[0];
Level->CreateThinker<DScroller>(EScroll::sc_side, 0, l->args[0] / 64., nullptr, nullptr, side, accel, SCROLLTYPE(l->args[1]));
break;
case Scroll_Texture_Down:
l->special = special;
side = Level->lines[i].sidedef[0];
Level->CreateThinker<DScroller>(EScroll::sc_side, 0, -l->args[0] / 64., nullptr, nullptr, side, accel, SCROLLTYPE(l->args[1]));
break;
case Scroll_Texture_Both:
side = Level->lines[i].sidedef[0];
if (l->args[0] == 0) {
dx = (l->args[1] - l->args[2]) / 64.;
dy = (l->args[4] - l->args[3]) / 64.;
Level->CreateThinker<DScroller>(EScroll::sc_side, dx, dy, nullptr, nullptr, side, accel);
}
break;
default:
// [RH] It wasn't a scroller after all, so restore the special.
l->special = special;
break;
}
}
}
void MapLoader::CreateScroller(EScroll type, double dx, double dy, sector_t *affectee, int accel, EScrollPos scrollpos)
{
Level->CreateThinker<DScroller>(type, dx, dy, nullptr, affectee, nullptr, accel, scrollpos);
}