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gzdoom-gles/src/p_things.cpp
alexey.lysiuk 2fb48f30ff - made setting actor TID more explicit 
Now it's no longer possible to manipulate TID hash from arbitrary location
For example, this prevents linking of destroyed object into the hash
TID member is still public but writing to it is limited to a few very specific cases like serialization and player traveling between levels

https://forum.zdoom.org/viewtopic.php?t=64476

# Conflicts:
#	src/actor.h
#	src/maploader/maploader.cpp
2019-05-10 12:41:29 +02:00

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/*
** p_things.cpp
** ACS-accessible thing utilities
**
**---------------------------------------------------------------------------
** Copyright 1998-2007 Randy Heit
** All rights reserved.
**
** 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 "doomtype.h"
#include "p_local.h"
#include "info.h"
#include "s_sound.h"
#include "doomstat.h"
#include "m_random.h"
#include "c_console.h"
#include "c_dispatch.h"
#include "a_sharedglobal.h"
#include "gi.h"
#include "templates.h"
#include "g_level.h"
#include "v_text.h"
#include "i_system.h"
#include "d_player.h"
#include "r_utility.h"
#include "p_spec.h"
#include "math/cmath.h"
#include "actorptrselect.h"
#include "g_levellocals.h"
#include "actorinlines.h"
#include "vm.h"
// Set of spawnable things for the Thing_Spawn and Thing_Projectile specials.
FClassMap SpawnableThings;
static FRandom pr_leadtarget ("LeadTarget");
bool P_Thing_Spawn (int tid, AActor *source, int type, DAngle angle, bool fog, int newtid)
{
int rtn = 0;
PClassActor *kind;
AActor *spot, *mobj;
FActorIterator iterator (tid);
kind = P_GetSpawnableType(type);
if (kind == NULL)
return false;
// Handle decorate replacements.
kind = kind->GetReplacement();
if ((GetDefaultByType(kind)->flags3 & MF3_ISMONSTER) &&
((dmflags & DF_NO_MONSTERS) || (level.flags2 & LEVEL2_NOMONSTERS)))
return false;
if (tid == 0)
{
spot = source;
}
else
{
spot = iterator.Next();
}
while (spot != NULL)
{
mobj = Spawn (kind, spot->Pos(), ALLOW_REPLACE);
if (mobj != NULL)
{
ActorFlags2 oldFlags2 = mobj->flags2;
mobj->flags2 |= MF2_PASSMOBJ;
if (P_TestMobjLocation (mobj))
{
rtn++;
mobj->Angles.Yaw = (angle != 1000000. ? angle : spot->Angles.Yaw);
if (fog)
{
P_SpawnTeleportFog(mobj, spot->Pos(), false, true);
}
if (mobj->flags & MF_SPECIAL)
mobj->flags |= MF_DROPPED; // Don't respawn
mobj->SetTID(newtid);
mobj->flags2 = oldFlags2;
}
else
{
// If this is a monster, subtract it from the total monster
// count, because it already added to it during spawning.
mobj->ClearCounters();
mobj->Destroy ();
}
}
spot = iterator.Next();
}
return rtn != 0;
}
// [BC] Added
// [RH] Fixed
bool P_MoveThing(AActor *source, const DVector3 &pos, bool fog)
{
DVector3 old = source->Pos();
source->SetOrigin (pos, true);
if (P_TestMobjLocation (source))
{
if (fog)
{
P_SpawnTeleportFog(source, pos, false, true);
P_SpawnTeleportFog(source, old, true, true);
}
source->ClearInterpolation();
if (source == players[consoleplayer].camera)
{
R_ResetViewInterpolation();
}
return true;
}
else
{
source->SetOrigin (old, true);
return false;
}
}
bool P_Thing_Move (int tid, AActor *source, int mapspot, bool fog)
{
AActor *target;
if (tid != 0)
{
FActorIterator iterator1(tid);
source = iterator1.Next();
}
FActorIterator iterator2 (mapspot);
target = iterator2.Next ();
if (source != NULL && target != NULL)
{
return P_MoveThing(source, target->Pos(), fog);
}
return false;
}
//==========================================================================
//
// VelIntercept
//
//==========================================================================
void InterceptDefaultAim(AActor *mobj, AActor *targ, DVector3 aim, double speed)
{
if (mobj == nullptr || targ == nullptr) return;
mobj->Angles.Yaw = mobj->AngleTo(targ);
mobj->Vel = aim.Resized(speed);
}
// [MC] Was part of P_Thing_Projectile, now its own function for use in ZScript.
// Aims mobj at targ based on speed and targ's velocity.
static void VelIntercept(AActor *targ, AActor *mobj, double speed, bool aimpitch = false, bool oldvel = false, bool leadtarget = true)
{
if (targ == nullptr || mobj == nullptr) return;
DVector3 aim = mobj->Vec3To(targ);
aim.Z += targ->Height / 2;
if (leadtarget && speed > 0 && !targ->Vel.isZero())
{
// Aiming at the target's position some time in the future
// is basically just an application of the law of sines:
// a/sin(A) = b/sin(B)
// Thanks to all those on the notgod phorum for helping me
// with the math. I don't think I would have thought of using
// trig alone had I been left to solve it by myself.
DVector3 tvel = targ->Vel;
if (!(targ->flags & MF_NOGRAVITY) && targ->waterlevel < 3)
{ // If the target is subject to gravity and not underwater,
// assume that it isn't moving vertically. Thanks to gravity,
// even if we did consider the vertical component of the target's
// velocity, we would still miss more often than not.
tvel.Z = 0.0;
if (targ->Vel.X == 0 && targ->Vel.Y == 0)
{
InterceptDefaultAim(mobj, targ, aim, speed);
return;
}
}
double dist = aim.Length();
double targspeed = tvel.Length();
double ydotx = -aim | tvel;
double a = g_acos(clamp(ydotx / targspeed / dist, -1.0, 1.0));
double multiplier = double(pr_leadtarget.Random2())*0.1 / 255 + 1.1;
double sinb = -clamp(targspeed*multiplier * g_sin(a) / speed, -1.0, 1.0);
DVector3 prevel = mobj->Vel;
// Use the cross product of two of the triangle's sides to get a
// rotation vector.
DVector3 rv(tvel ^ aim);
// The vector must be normalized.
rv.MakeUnit();
// Now combine the rotation vector with angle b to get a rotation matrix.
DMatrix3x3 rm(rv, g_cos(g_asin(sinb)), sinb);
// And multiply the original aim vector with the matrix to get a
// new aim vector that leads the target.
DVector3 aimvec = rm * aim;
// And make the projectile follow that vector at the desired speed.
mobj->Vel = aimvec * (speed / dist);
mobj->AngleFromVel();
if (oldvel)
{
mobj->Vel = prevel;
}
if (aimpitch) // [MC] Ripped right out of A_FaceMovementDirection
{
const DVector2 velocity = mobj->Vel.XY();
mobj->Angles.Pitch = -VecToAngle(velocity.Length(), mobj->Vel.Z);
}
}
else
{
InterceptDefaultAim(mobj, targ, aim, speed);
}
}
DEFINE_ACTION_FUNCTION(AActor, VelIntercept)
{
PARAM_SELF_PROLOGUE(AActor);
PARAM_OBJECT_NOT_NULL(targ, AActor);
PARAM_FLOAT(speed);
PARAM_BOOL(aimpitch);
PARAM_BOOL(oldvel);
if (speed < 0) speed = self->Speed;
VelIntercept(targ, self, speed, aimpitch, oldvel);
return 0;
}
bool P_Thing_Projectile (int tid, AActor *source, int type, const char *type_name, DAngle angle,
double speed, double vspeed, int dest, AActor *forcedest, int gravity, int newtid,
bool leadTarget)
{
int rtn = 0;
PClassActor *kind;
AActor *spot, *mobj, *targ = forcedest;
FActorIterator iterator (tid);
int defflags3;
if (type_name == NULL)
{
kind = P_GetSpawnableType(type);
}
else
{
kind = PClass::FindActor(type_name);
}
if (kind == NULL)
{
return false;
}
// Handle decorate replacements.
kind = kind->GetReplacement();
defflags3 = GetDefaultByType(kind)->flags3;
if ((defflags3 & MF3_ISMONSTER) &&
((dmflags & DF_NO_MONSTERS) || (level.flags2 & LEVEL2_NOMONSTERS)))
return false;
if (tid == 0)
{
spot = source;
}
else
{
spot = iterator.Next();
}
while (spot != NULL)
{
FActorIterator tit (dest);
if (dest == 0 || (targ = tit.Next()))
{
do
{
double z = spot->Z();
if (defflags3 & MF3_FLOORHUGGER)
{
z = ONFLOORZ;
}
else if (defflags3 & MF3_CEILINGHUGGER)
{
z = ONCEILINGZ;
}
else if (z != ONFLOORZ)
{
z -= spot->Floorclip;
}
mobj = Spawn (kind, spot->PosAtZ(z), ALLOW_REPLACE);
if (mobj)
{
mobj->SetTID(newtid);
P_PlaySpawnSound(mobj, spot);
if (gravity)
{
mobj->flags &= ~MF_NOGRAVITY;
if (!(mobj->flags3 & MF3_ISMONSTER) && gravity == 1)
{
mobj->Gravity = 1./8;
}
}
else
{
mobj->flags |= MF_NOGRAVITY;
}
mobj->target = spot;
if (targ != nullptr)
{
VelIntercept(targ, mobj, speed, false, false, leadTarget);
if (mobj->flags2 & MF2_SEEKERMISSILE)
{
mobj->tracer = targ;
}
}
else
{
mobj->Angles.Yaw = angle;
mobj->VelFromAngle(speed);
mobj->Vel.Z = vspeed;
}
// Set the missile's speed to reflect the speed it was spawned at.
if (mobj->flags & MF_MISSILE)
{
mobj->Speed = mobj->VelToSpeed();
}
// Hugger missiles don't have any vertical velocity
if (mobj->flags3 & (MF3_FLOORHUGGER|MF3_CEILINGHUGGER))
{
mobj->Vel.Z = 0;
}
if (mobj->flags & MF_SPECIAL)
{
mobj->flags |= MF_DROPPED;
}
if (mobj->flags & MF_MISSILE)
{
if (P_CheckMissileSpawn (mobj, spot->radius))
{
rtn = true;
}
}
else if (!P_TestMobjLocation (mobj))
{
// If this is a monster, subtract it from the total monster
// count, because it already added to it during spawning.
mobj->ClearCounters();
mobj->Destroy ();
}
else
{
// It spawned fine.
rtn = 1;
}
}
} while (dest != 0 && (targ = tit.Next()));
}
spot = iterator.Next();
}
return rtn != 0;
}
int P_Thing_Damage (int tid, AActor *whofor0, int amount, FName type)
{
FActorIterator iterator (tid);
int count = 0;
AActor *actor;
actor = (tid == 0 ? whofor0 : iterator.Next());
while (actor)
{
AActor *next = tid == 0 ? NULL : iterator.Next ();
if (actor->flags & MF_SHOOTABLE)
{
if (amount > 0)
{
P_DamageMobj (actor, NULL, whofor0, amount, type);
}
else if (actor->health < actor->SpawnHealth())
{
actor->health -= amount;
if (actor->health > actor->SpawnHealth())
{
actor->health = actor->SpawnHealth();
}
if (actor->player != NULL)
{
actor->player->health = actor->health;
}
}
count++;
}
actor = next;
}
return count;
}
void P_RemoveThing(AActor * actor)
{
// Don't remove live players.
if (actor->player == NULL || actor != actor->player->mo)
{
// Don't also remove owned inventory items
if (!actor->IsMapActor()) return;
// be friendly to the level statistics. ;)
actor->ClearCounters();
actor->Destroy ();
}
}
bool P_Thing_Raise(AActor *thing, AActor *raiser, int flags)
{
if (!thing)
return false;
FState * RaiseState = thing->GetRaiseState();
if (RaiseState == NULL)
{
return false; // monster doesn't have a raise state
}
AActor *info = thing->GetDefault ();
thing->Vel.X = thing->Vel.Y = 0;
// [RH] Check against real height and radius
double oldheight = thing->Height;
double oldradius = thing->radius;
ActorFlags oldflags = thing->flags;
thing->flags |= MF_SOLID;
thing->Height = info->Height; // [RH] Use real height
thing->radius = info->radius; // [RH] Use real radius
if (!(flags & RF_NOCHECKPOSITION) && !P_CheckPosition (thing, thing->Pos()))
{
thing->flags = oldflags;
thing->radius = oldradius;
thing->Height = oldheight;
return false;
}
if (!P_CanResurrect(raiser, thing))
return false;
S_Sound (thing, CHAN_BODY, "vile/raise", 1, ATTN_IDLE);
thing->Revive();
if ((flags & RF_TRANSFERFRIENDLINESS) && raiser != nullptr)
{
// Let's copy the friendliness of the one who raised it.
thing->CopyFriendliness(raiser, false);
}
thing->SetState (RaiseState);
return true;
}
bool P_Thing_CanRaise(AActor *thing)
{
FState * RaiseState = thing->GetRaiseState();
if (RaiseState == NULL)
{
return false;
}
AActor *info = thing->GetDefault();
// Check against real height and radius
ActorFlags oldflags = thing->flags;
double oldheight = thing->Height;
double oldradius = thing->radius;
thing->flags |= MF_SOLID;
thing->Height = info->Height;
thing->radius = info->radius;
bool check = P_CheckPosition (thing, thing->Pos());
// Restore checked properties
thing->flags = oldflags;
thing->radius = oldradius;
thing->Height = oldheight;
if (!check)
{
return false;
}
return true;
}
void P_Thing_SetVelocity(AActor *actor, const DVector3 &vec, bool add, bool setbob)
{
if (actor != NULL)
{
if (!add)
{
actor->Vel.Zero();
if (actor->player != NULL) actor->player->Vel.Zero();
}
actor->Vel += vec;
if (setbob && actor->player != NULL)
{
actor->player->Vel += vec.XY();
}
}
}
PClassActor *P_GetSpawnableType(int spawnnum)
{
if (spawnnum < 0)
{ // A named arg from a UDMF map
FName spawnname = FName(ENamedName(-spawnnum));
if (spawnname.IsValidName())
{
return PClass::FindActor(spawnname);
}
}
else
{ // A numbered arg from a Hexen or UDMF map
PClassActor **type = SpawnableThings.CheckKey(spawnnum);
if (type != NULL)
{
return *type;
}
}
return NULL;
}
struct MapinfoSpawnItem
{
FName classname; // DECORATE is read after MAPINFO so we do not have the actual classes available here yet.
// These are for error reporting. We must store the file information because it's no longer available when these items get resolved.
FString filename;
int linenum;
};
typedef TMap<int, MapinfoSpawnItem> SpawnMap;
static SpawnMap SpawnablesFromMapinfo;
static SpawnMap ConversationIDsFromMapinfo;
static int SpawnableSort(const void *a, const void *b)
{
return (*((FClassMap::Pair **)a))->Key - (*((FClassMap::Pair **)b))->Key;
}
static void DumpClassMap(FClassMap &themap)
{
FClassMap::Iterator it(themap);
FClassMap::Pair *pair;
TArray<FClassMap::Pair*> allpairs(themap.CountUsed(), true);
int i = 0;
// Sort into numerical order, since their arrangement in the map can
// be in an unspecified order.
while (it.NextPair(pair))
{
allpairs[i++] = pair;
}
qsort(allpairs.Data(), i, sizeof(allpairs[0]), SpawnableSort);
for (int j = 0; j < i; ++j)
{
pair = allpairs[j];
Printf ("%d %s\n", pair->Key, pair->Value->TypeName.GetChars());
}
}
CCMD(dumpspawnables)
{
DumpClassMap(SpawnableThings);
}
CCMD (dumpconversationids)
{
DumpClassMap(StrifeTypes);
}
static void ParseSpawnMap(FScanner &sc, SpawnMap & themap, const char *descript)
{
TMap<int, bool> defined;
int error = 0;
MapinfoSpawnItem editem;
editem.filename = sc.ScriptName;
while (true)
{
if (sc.CheckString("}")) return;
else if (sc.CheckNumber())
{
int ednum = sc.Number;
sc.MustGetStringName("=");
sc.MustGetString();
bool *def = defined.CheckKey(ednum);
if (def != NULL)
{
sc.ScriptMessage("%s %d defined more than once", descript, ednum);
error++;
}
else if (ednum < 0)
{
sc.ScriptMessage("%s must be positive, got %d", descript, ednum);
error++;
}
defined[ednum] = true;
editem.classname = sc.String;
editem.linenum = sc.Line;
themap.Insert(ednum, editem);
}
else
{
sc.ScriptError("Number expected");
}
}
if (error > 0)
{
sc.ScriptError("%d errors encountered in %s definition", error, descript);
}
}
void FMapInfoParser::ParseSpawnNums()
{
ParseOpenBrace();
ParseSpawnMap(sc, SpawnablesFromMapinfo, "Spawn number");
}
void FMapInfoParser::ParseConversationIDs()
{
ParseOpenBrace();
ParseSpawnMap(sc, ConversationIDsFromMapinfo, "Conversation ID");
}
void InitClassMap(FClassMap &themap, SpawnMap &thedata)
{
themap.Clear();
SpawnMap::Iterator it(thedata);
SpawnMap::Pair *pair;
int error = 0;
while (it.NextPair(pair))
{
PClassActor *cls = NULL;
if (pair->Value.classname != NAME_None)
{
cls = PClass::FindActor(pair->Value.classname);
if (cls == NULL)
{
Printf(TEXTCOLOR_RED "Script error, \"%s\" line %d:\nUnknown actor class %s\n",
pair->Value.filename.GetChars(), pair->Value.linenum, pair->Value.classname.GetChars());
error++;
}
themap.Insert(pair->Key, cls);
}
else
{
themap.Remove(pair->Key);
}
}
if (error > 0)
{
I_Error("%d unknown actor classes found", error);
}
thedata.Clear(); // we do not need this any longer
}
void InitSpawnablesFromMapinfo()
{
InitClassMap(SpawnableThings, SpawnablesFromMapinfo);
InitClassMap(StrifeTypes, ConversationIDsFromMapinfo);
}
int P_Thing_CheckInputNum(player_t *p, int inputnum)
{
int renum = 0;
if (p)
{
switch (inputnum)
{
case INPUT_OLDBUTTONS: renum = p->original_oldbuttons; break;
case INPUT_BUTTONS: renum = p->original_cmd.buttons; break;
case INPUT_PITCH: renum = p->original_cmd.pitch; break;
case INPUT_YAW: renum = p->original_cmd.yaw; break;
case INPUT_ROLL: renum = p->original_cmd.roll; break;
case INPUT_FORWARDMOVE: renum = p->original_cmd.forwardmove; break;
case INPUT_SIDEMOVE: renum = p->original_cmd.sidemove; break;
case INPUT_UPMOVE: renum = p->original_cmd.upmove; break;
case MODINPUT_OLDBUTTONS: renum = p->oldbuttons; break;
case MODINPUT_BUTTONS: renum = p->cmd.ucmd.buttons; break;
case MODINPUT_PITCH: renum = p->cmd.ucmd.pitch; break;
case MODINPUT_YAW: renum = p->cmd.ucmd.yaw; break;
case MODINPUT_ROLL: renum = p->cmd.ucmd.roll; break;
case MODINPUT_FORWARDMOVE: renum = p->cmd.ucmd.forwardmove; break;
case MODINPUT_SIDEMOVE: renum = p->cmd.ucmd.sidemove; break;
case MODINPUT_UPMOVE: renum = p->cmd.ucmd.upmove; break;
default: renum = 0; break;
}
}
return renum;
}
int P_Thing_CheckProximity(AActor *self, PClass *classname, double distance, int count, int flags, int ptr, bool counting)
{
AActor *ref = COPY_AAPTR(self, ptr);
// We need these to check out.
if (!ref || !classname || distance <= 0)
return 0;
int counter = 0;
int result = 0;
double closer = distance, farther = 0, current = distance;
const bool ptrWillChange = !!(flags & (CPXF_SETTARGET | CPXF_SETMASTER | CPXF_SETTRACER));
const bool ptrDistPref = !!(flags & (CPXF_CLOSEST | CPXF_FARTHEST));
TThinkerIterator<AActor> it;
AActor *mo, *dist = nullptr;
// [MC] Process of elimination, I think, will get through this as quickly and
// efficiently as possible.
while ((mo = it.Next()))
{
if (mo == ref) //Don't count self.
continue;
// no unmorphed versions of currently morphed players.
if (mo->flags & MF_UNMORPHED)
continue;
// Check inheritance for the classname. Taken partly from CheckClass DECORATE function.
if (flags & CPXF_ANCESTOR)
{
if (!(mo->IsKindOf(classname)))
continue;
}
// Otherwise, just check for the regular class name.
else if (classname != mo->GetClass())
continue;
if (!mo->IsMapActor())
{
// Skip owned item because its position could remain unchanged since attachment to owner
// Most likely it is the last location of this item in the world before pick up
continue;
}
// [MC]Make sure it's in range and respect the desire for Z or not. The function forces it to use
// Z later for ensuring CLOSEST and FARTHEST flags are respected perfectly.
// Ripped from sphere checking in A_RadiusGive (along with a number of things).
if ((ref->Distance2D(mo) < distance &&
((flags & CPXF_NOZ) ||
((ref->Z() > mo->Z() && ref->Z() - mo->Top() < distance) ||
(ref->Z() <= mo->Z() && mo->Z() - ref->Top() < distance)))))
{
if ((flags & CPXF_CHECKSIGHT) && !(P_CheckSight(mo, ref, SF_IGNOREVISIBILITY | SF_IGNOREWATERBOUNDARY)))
continue;
if (mo->flags6 & MF6_KILLED)
{
if (!(flags & (CPXF_COUNTDEAD | CPXF_DEADONLY)))
continue;
}
else
{
if (flags & CPXF_DEADONLY)
continue;
}
if (ptrWillChange)
{
current = ref->Distance2D(mo);
if ((flags & CPXF_CLOSEST) && (current < closer))
{
dist = mo;
closer = current; // This actor's closer. Set the new standard.
}
else if ((flags & CPXF_FARTHEST) && (current > farther))
{
dist = mo;
farther = current;
}
else if (!dist)
dist = mo; // Just get the first one and call it quits if there's nothing selected.
}
counter++;
// Abort if the number of matching classes nearby is greater, we have obviously succeeded in our goal.
// Don't abort if calling the counting version CheckProximity non-action function.
if (!counting && counter > count)
{
result = (flags & (CPXF_LESSOREQUAL | CPXF_EXACT)) ? 0 : 1;
// However, if we have one SET* flag and either the closest or farthest flags, keep the function going.
if (ptrWillChange && ptrDistPref)
continue;
else
break;
}
}
}
if (ptrWillChange && dist != 0)
{
if (flags & CPXF_SETONPTR)
{
if (flags & CPXF_SETTARGET) ref->target = dist;
if (flags & CPXF_SETMASTER) ref->master = dist;
if (flags & CPXF_SETTRACER) ref->tracer = dist;
}
else
{
if (flags & CPXF_SETTARGET) self->target = dist;
if (flags & CPXF_SETMASTER) self->master = dist;
if (flags & CPXF_SETTRACER) self->tracer = dist;
}
}
if (!counting)
{
if (counter == count)
result = 1;
else if (counter < count)
result = !!((flags & CPXF_LESSOREQUAL) && !(flags & CPXF_EXACT)) ? 1 : 0;
}
return counting ? counter : result;
}
int P_Thing_Warp(AActor *caller, AActor *reference, double xofs, double yofs, double zofs, DAngle angle, int flags, double heightoffset, double radiusoffset, DAngle pitch)
{
if (flags & WARPF_MOVEPTR)
{
AActor *temp = reference;
reference = caller;
caller = temp;
}
DVector3 old = caller->Pos();
int oldpgroup = caller->Sector->PortalGroup;
zofs += reference->Height * heightoffset;
if (!(flags & WARPF_ABSOLUTEANGLE))
{
angle += (flags & WARPF_USECALLERANGLE) ? caller->Angles.Yaw: reference->Angles.Yaw;
}
const double rad = radiusoffset * reference->radius;
const double s = angle.Sin();
const double c = angle.Cos();
if (!(flags & WARPF_ABSOLUTEPOSITION))
{
if (!(flags & WARPF_ABSOLUTEOFFSET))
{
double xofs1 = xofs;
// (borrowed from A_SpawnItemEx, assumed workable)
// in relative mode negative y values mean 'left' and positive ones mean 'right'
// This is the inverse orientation of the absolute mode!
xofs = xofs1 * c + yofs * s;
yofs = xofs1 * s - yofs * c;
}
if (flags & WARPF_TOFLOOR)
{
// set correct xy
// now the caller's floorz should be appropriate for the assigned xy-position
// assigning position again with.
// extra unlink, link and environment calculation
caller->SetOrigin(reference->Vec3Offset(xofs + rad * c, yofs + rad * s, 0.), true);
// The two-step process is important.
caller->SetZ(caller->floorz + zofs);
}
else
{
caller->SetOrigin(reference->Vec3Offset(xofs + rad * c, yofs + rad * s, zofs), true);
}
}
else // [MC] The idea behind "absolute" is meant to be "absolute". Override everything, just like A_SpawnItemEx's.
{
caller->SetOrigin(xofs + rad * c, yofs + rad * s, zofs, true);
if (flags & WARPF_TOFLOOR)
{
caller->SetZ(caller->floorz + zofs);
}
}
if ((flags & WARPF_NOCHECKPOSITION) || P_TestMobjLocation(caller))
{
if (flags & WARPF_TESTONLY)
{
caller->SetOrigin(old, true);
}
else
{
caller->Angles.Yaw = angle;
if (flags & WARPF_COPYPITCH)
caller->SetPitch(reference->Angles.Pitch, false);
if (pitch != 0)
caller->SetPitch(caller->Angles.Pitch + pitch, false);
if (flags & WARPF_COPYVELOCITY)
{
caller->Vel = reference->Vel;
}
if (flags & WARPF_STOP)
{
caller->Vel.Zero();
}
// this is no fun with line portals
if (flags & WARPF_WARPINTERPOLATION)
{
// This just translates the movement but doesn't change the vector
DVector3 displacedold = old + Displacements.getOffset(oldpgroup, caller->Sector->PortalGroup);
caller->Prev += caller->Pos() - displacedold;
caller->PrevPortalGroup = caller->Sector->PortalGroup;
}
else if (flags & WARPF_COPYINTERPOLATION)
{
// Map both positions of the reference actor to the current portal group
DVector3 displacedold = old + Displacements.getOffset(reference->PrevPortalGroup, caller->Sector->PortalGroup);
DVector3 displacedref = old + Displacements.getOffset(reference->Sector->PortalGroup, caller->Sector->PortalGroup);
caller->Prev = caller->Pos() + displacedold - displacedref;
caller->PrevPortalGroup = caller->Sector->PortalGroup;
}
else if (!(flags & WARPF_INTERPOLATE))
{
caller->ClearInterpolation();
}
if ((flags & WARPF_BOB) && (reference->flags2 & MF2_FLOATBOB))
{
caller->AddZ(reference->GetBobOffset());
}
P_TryMove(caller, caller->Pos(), false);
}
return true;
}
caller->SetOrigin(old, true);
return false;
}
//==========================================================================
//
// A_Warp
//
//==========================================================================
DEFINE_ACTION_FUNCTION(AActor, Warp)
{
PARAM_SELF_PROLOGUE(AActor)
PARAM_OBJECT(destination, AActor)
PARAM_FLOAT(xofs)
PARAM_FLOAT(yofs)
PARAM_FLOAT(zofs)
PARAM_ANGLE(angle)
PARAM_INT(flags)
PARAM_FLOAT(heightoffset)
PARAM_FLOAT(radiusoffset)
PARAM_ANGLE(pitch)
const int result = destination == nullptr ? 0 :
P_Thing_Warp(self, destination, xofs, yofs, zofs, angle, flags, heightoffset, radiusoffset, pitch);
ACTION_RETURN_INT(result);
}
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