qzdoom/src/r_data/r_interpolate.cpp

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/*
** r_interpolate.cpp
**
** Movement interpolation
**
**---------------------------------------------------------------------------
** Copyright 2008 Christoph Oelckers
** 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 "p_3dmidtex.h"
#include "stats.h"
#include "r_data/r_interpolate.h"
#include "p_local.h"
#include "po_man.h"
#include "serializer_doom.h"
#include "serialize_obj.h"
#include "g_levellocals.h"
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//==========================================================================
//
//
//
//==========================================================================
class DSectorPlaneInterpolation : public DInterpolation
{
DECLARE_CLASS(DSectorPlaneInterpolation, DInterpolation)
sector_t *sector;
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double oldheight, oldtexz;
double bakheight, baktexz;
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bool ceiling;
TArray<DInterpolation *> attached;
public:
DSectorPlaneInterpolation() {}
DSectorPlaneInterpolation(sector_t *sector, bool plane, bool attach);
void UnlinkFromMap() override;
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void UpdateInterpolation();
void Restore();
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void Interpolate(double smoothratio);
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virtual void Serialize(FSerializer &arc);
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size_t PropagateMark();
};
//==========================================================================
//
//
//
//==========================================================================
class DSectorScrollInterpolation : public DInterpolation
{
DECLARE_CLASS(DSectorScrollInterpolation, DInterpolation)
sector_t *sector;
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double oldx, oldy;
double bakx, baky;
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bool ceiling;
public:
DSectorScrollInterpolation() {}
DSectorScrollInterpolation(sector_t *sector, bool plane);
void UnlinkFromMap() override;
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void UpdateInterpolation();
void Restore();
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void Interpolate(double smoothratio);
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virtual void Serialize(FSerializer &arc);
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};
//==========================================================================
//
//
//
//==========================================================================
class DWallScrollInterpolation : public DInterpolation
{
DECLARE_CLASS(DWallScrollInterpolation, DInterpolation)
side_t *side;
int part;
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double oldx, oldy;
double bakx, baky;
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public:
DWallScrollInterpolation() {}
DWallScrollInterpolation(side_t *side, int part);
void UnlinkFromMap() override;
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void UpdateInterpolation();
void Restore();
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void Interpolate(double smoothratio);
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virtual void Serialize(FSerializer &arc);
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};
//==========================================================================
//
//
//
//==========================================================================
class DPolyobjInterpolation : public DInterpolation
{
DECLARE_CLASS(DPolyobjInterpolation, DInterpolation)
FPolyObj *poly;
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TArray<double> oldverts, bakverts;
double oldcx, oldcy;
double bakcx, bakcy;
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public:
DPolyobjInterpolation() {}
DPolyobjInterpolation(FPolyObj *poly);
void UnlinkFromMap() override;
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void UpdateInterpolation();
void Restore();
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void Interpolate(double smoothratio);
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virtual void Serialize(FSerializer &arc);
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};
//==========================================================================
//
//
//
//==========================================================================
IMPLEMENT_CLASS(DInterpolation, true, true)
IMPLEMENT_POINTERS_START(DInterpolation)
IMPLEMENT_POINTER(Next)
IMPLEMENT_POINTER(Prev)
IMPLEMENT_POINTERS_END
IMPLEMENT_CLASS(DSectorPlaneInterpolation, false, false)
IMPLEMENT_CLASS(DSectorScrollInterpolation, false, false)
IMPLEMENT_CLASS(DWallScrollInterpolation, false, false)
IMPLEMENT_CLASS(DPolyobjInterpolation, false, false)
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//==========================================================================
//
//
//
//==========================================================================
int FInterpolator::CountInterpolations ()
{
int count = 0;
for (DInterpolation *probe = Head; probe != nullptr; probe = probe->Next)
{
count++;
}
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return count;
}
//==========================================================================
//
//
//
//==========================================================================
void FInterpolator::UpdateInterpolations()
{
for (DInterpolation *probe = Head; probe != nullptr; probe = probe->Next)
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{
probe->UpdateInterpolation ();
}
}
//==========================================================================
//
//
//
//==========================================================================
void FInterpolator::AddInterpolation(DInterpolation *interp)
{
interp->Next = Head;
if (Head != nullptr) Head->Prev = interp;
interp->Prev = nullptr;
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Head = interp;
}
//==========================================================================
//
//
//
//==========================================================================
void FInterpolator::RemoveInterpolation(DInterpolation *interp)
{
if (Head == interp)
{
Head = interp->Next;
if (Head != nullptr) Head->Prev = nullptr;
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}
else
{
if (interp->Prev != nullptr) interp->Prev->Next = interp->Next;
if (interp->Next != nullptr) interp->Next->Prev = interp->Prev;
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}
interp->Next = nullptr;
interp->Prev = nullptr;
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}
//==========================================================================
//
//
//
//==========================================================================
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void FInterpolator::DoInterpolations(double smoothratio)
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{
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if (smoothratio >= 1.)
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{
didInterp = false;
return;
}
didInterp = true;
DInterpolation *probe = Head;
while (probe != nullptr)
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{
DInterpolation *next = probe->Next;
probe->Interpolate(smoothratio);
probe = next;
}
}
//==========================================================================
//
//
//
//==========================================================================
void FInterpolator::RestoreInterpolations()
{
if (didInterp)
{
didInterp = false;
for (DInterpolation *probe = Head; probe != nullptr; probe = probe->Next)
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{
probe->Restore();
}
}
}
//==========================================================================
//
//
//
//==========================================================================
void FInterpolator::ClearInterpolations()
{
DInterpolation *probe = Head;
Head = nullptr;
while (probe != nullptr)
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{
DInterpolation *next = probe->Next;
probe->Next = probe->Prev = nullptr;
probe->UnlinkFromMap();
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probe->Destroy();
probe = next;
}
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}
FSerializer &Serialize(FSerializer &arc, const char *key, FInterpolator &rs, FInterpolator *def)
{
if (arc.BeginObject(key))
{
arc("head", rs.Head)
.EndObject();
}
return arc;
}
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//==========================================================================
//
//
//
//==========================================================================
//==========================================================================
//
//
//
//==========================================================================
int DInterpolation::AddRef()
{
return ++refcount;
}
//==========================================================================
//
//
//
//==========================================================================
int DInterpolation::DelRef(bool force)
{
if (refcount > 0) --refcount;
if (force && refcount == 0)
{
UnlinkFromMap();
Destroy();
}
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return refcount;
}
//==========================================================================
//
//
//
//==========================================================================
void DInterpolation::UnlinkFromMap()
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{
if (Level)
Level->interpolator.RemoveInterpolation(this);
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refcount = 0;
}
//==========================================================================
//
//
//
//==========================================================================
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void DInterpolation::Serialize(FSerializer &arc)
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{
Super::Serialize(arc);
arc("refcount", refcount)
("next", Next)
("prev", Prev)
("level", Level);
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}
//==========================================================================
//
//
//
//==========================================================================
//==========================================================================
//
//
//
//==========================================================================
DSectorPlaneInterpolation::DSectorPlaneInterpolation(sector_t *_sector, bool _plane, bool attach)
: DInterpolation(_sector->Level)
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{
sector = _sector;
ceiling = _plane;
UpdateInterpolation ();
if (attach)
{
P_Start3dMidtexInterpolations(attached, sector, ceiling);
P_StartLinkedSectorInterpolations(attached, sector, ceiling);
}
sector->Level->interpolator.AddInterpolation(this);
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}
//==========================================================================
//
//
//
//==========================================================================
void DSectorPlaneInterpolation::UnlinkFromMap()
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{
if (sector != nullptr)
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{
if (ceiling)
{
sector->interpolations[sector_t::CeilingMove] = nullptr;
}
else
{
sector->interpolations[sector_t::FloorMove] = nullptr;
}
sector = nullptr;
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}
for (unsigned i = 0; i < attached.Size(); i++)
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{
attached[i]->DelRef();
}
attached.Reset();
Super::UnlinkFromMap();
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}
//==========================================================================
//
//
//
//==========================================================================
void DSectorPlaneInterpolation::UpdateInterpolation()
{
if (!ceiling)
{
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oldheight = sector->floorplane.fD();
oldtexz = sector->GetPlaneTexZ(sector_t::floor);
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}
else
{
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oldheight = sector->ceilingplane.fD();
oldtexz = sector->GetPlaneTexZ(sector_t::ceiling);
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}
}
//==========================================================================
//
//
//
//==========================================================================
void DSectorPlaneInterpolation::Restore()
{
if (!ceiling)
{
sector->floorplane.setD(bakheight);
sector->SetPlaneTexZ(sector_t::floor, baktexz, true);
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}
else
{
sector->ceilingplane.setD(bakheight);
sector->SetPlaneTexZ(sector_t::ceiling, baktexz, true);
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}
P_RecalculateAttached3DFloors(sector);
sector->CheckPortalPlane(ceiling? sector_t::ceiling : sector_t::floor);
}
//==========================================================================
//
//
//
//==========================================================================
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void DSectorPlaneInterpolation::Interpolate(double smoothratio)
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{
secplane_t *pplane;
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int pos;
if (!ceiling)
{
pplane = &sector->floorplane;
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pos = sector_t::floor;
}
else
{
pplane = &sector->ceilingplane;
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pos = sector_t::ceiling;
}
bakheight = pplane->fD();
baktexz = sector->GetPlaneTexZ(pos);
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if (refcount == 0 && oldheight == bakheight)
{
UnlinkFromMap();
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Destroy();
}
else
{
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pplane->setD(oldheight + (bakheight - oldheight) * smoothratio);
sector->SetPlaneTexZ(pos, oldtexz + (baktexz - oldtexz) * smoothratio, true);
P_RecalculateAttached3DFloors(sector);
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sector->CheckPortalPlane(pos);
}
}
//==========================================================================
//
//
//
//==========================================================================
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void DSectorPlaneInterpolation::Serialize(FSerializer &arc)
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{
Super::Serialize(arc);
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arc("sector", sector)
("ceiling", ceiling)
("oldheight", oldheight)
("oldtexz", oldtexz)
("attached", attached);
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}
//==========================================================================
//
//
//
//==========================================================================
size_t DSectorPlaneInterpolation::PropagateMark()
{
for(unsigned i=0; i<attached.Size(); i++)
{
GC::Mark(attached[i]);
}
return Super::PropagateMark();
}
//==========================================================================
//
//
//
//==========================================================================
//==========================================================================
//
//
//
//==========================================================================
DSectorScrollInterpolation::DSectorScrollInterpolation(sector_t *_sector, bool _plane)
: DInterpolation(_sector->Level)
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{
sector = _sector;
ceiling = _plane;
UpdateInterpolation ();
sector->Level->interpolator.AddInterpolation(this);
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}
//==========================================================================
//
//
//
//==========================================================================
void DSectorScrollInterpolation::UnlinkFromMap()
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{
if (sector != nullptr)
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{
if (ceiling)
{
sector->interpolations[sector_t::CeilingScroll] = nullptr;
}
else
{
sector->interpolations[sector_t::FloorScroll] = nullptr;
}
sector = nullptr;
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}
Super::UnlinkFromMap();
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}
//==========================================================================
//
//
//
//==========================================================================
void DSectorScrollInterpolation::UpdateInterpolation()
{
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oldx = sector->GetXOffset(ceiling);
oldy = sector->GetYOffset(ceiling, false);
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}
//==========================================================================
//
//
//
//==========================================================================
void DSectorScrollInterpolation::Restore()
{
sector->SetXOffset(ceiling, bakx);
sector->SetYOffset(ceiling, baky);
}
//==========================================================================
//
//
//
//==========================================================================
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void DSectorScrollInterpolation::Interpolate(double smoothratio)
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{
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bakx = sector->GetXOffset(ceiling);
baky = sector->GetYOffset(ceiling, false);
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if (refcount == 0 && oldx == bakx && oldy == baky)
{
UnlinkFromMap();
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Destroy();
}
else
{
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sector->SetXOffset(ceiling, oldx + (bakx - oldx) * smoothratio);
sector->SetYOffset(ceiling, oldy + (baky - oldy) * smoothratio);
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}
}
//==========================================================================
//
//
//
//==========================================================================
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void DSectorScrollInterpolation::Serialize(FSerializer &arc)
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{
Super::Serialize(arc);
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arc("sector", sector)
("ceiling", ceiling)
("oldx", oldx)
("oldy", oldy);
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}
//==========================================================================
//
//
//
//==========================================================================
//==========================================================================
//
//
//
//==========================================================================
DWallScrollInterpolation::DWallScrollInterpolation(side_t *_side, int _part)
: DInterpolation(_side->GetLevel())
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{
side = _side;
part = _part;
UpdateInterpolation ();
side->GetLevel()->interpolator.AddInterpolation(this);
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}
//==========================================================================
//
//
//
//==========================================================================
void DWallScrollInterpolation::UnlinkFromMap()
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{
if (side != nullptr)
{
side->textures[part].interpolation = nullptr;
side = nullptr;
}
Super::UnlinkFromMap();
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}
//==========================================================================
//
//
//
//==========================================================================
void DWallScrollInterpolation::UpdateInterpolation()
{
oldx = side->GetTextureXOffset(part);
oldy = side->GetTextureYOffset(part);
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}
//==========================================================================
//
//
//
//==========================================================================
void DWallScrollInterpolation::Restore()
{
side->SetTextureXOffset(part, bakx);
side->SetTextureYOffset(part, baky);
}
//==========================================================================
//
//
//
//==========================================================================
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void DWallScrollInterpolation::Interpolate(double smoothratio)
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{
bakx = side->GetTextureXOffset(part);
baky = side->GetTextureYOffset(part);
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if (refcount == 0 && oldx == bakx && oldy == baky)
{
UnlinkFromMap();
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Destroy();
}
else
{
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side->SetTextureXOffset(part, oldx + (bakx - oldx) * smoothratio);
side->SetTextureYOffset(part, oldy + (baky - oldy) * smoothratio);
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}
}
//==========================================================================
//
//
//
//==========================================================================
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void DWallScrollInterpolation::Serialize(FSerializer &arc)
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{
Super::Serialize(arc);
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arc("side", side)
("part", part)
("oldx", oldx)
("oldy", oldy);
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}
//==========================================================================
//
//
//
//==========================================================================
//==========================================================================
//
//
//
//==========================================================================
DPolyobjInterpolation::DPolyobjInterpolation(FPolyObj *po)
: DInterpolation(po->Level)
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{
poly = po;
oldverts.Resize(po->Vertices.Size() << 1);
bakverts.Resize(po->Vertices.Size() << 1);
UpdateInterpolation ();
po->Level->interpolator.AddInterpolation(this);
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}
//==========================================================================
//
//
//
//==========================================================================
void DPolyobjInterpolation::UnlinkFromMap()
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{
if (poly != nullptr)
{
poly->interpolation = nullptr;
}
Super::UnlinkFromMap();
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}
//==========================================================================
//
//
//
//==========================================================================
void DPolyobjInterpolation::UpdateInterpolation()
{
for(unsigned int i = 0; i < poly->Vertices.Size(); i++)
{
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oldverts[i*2 ] = poly->Vertices[i]->fX();
oldverts[i*2+1] = poly->Vertices[i]->fY();
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}
oldcx = poly->CenterSpot.pos.X;
oldcy = poly->CenterSpot.pos.Y;
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}
//==========================================================================
//
//
//
//==========================================================================
void DPolyobjInterpolation::Restore()
{
for(unsigned int i = 0; i < poly->Vertices.Size(); i++)
{
poly->Vertices[i]->set(bakverts[i*2 ], bakverts[i*2+1]);
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}
poly->CenterSpot.pos.X = bakcx;
poly->CenterSpot.pos.Y = bakcy;
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poly->ClearSubsectorLinks();
}
//==========================================================================
//
//
//
//==========================================================================
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void DPolyobjInterpolation::Interpolate(double smoothratio)
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{
bool changed = false;
for(unsigned int i = 0; i < poly->Vertices.Size(); i++)
{
bakverts[i*2 ] = poly->Vertices[i]->fX();
bakverts[i*2+1] = poly->Vertices[i]->fY();
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if (bakverts[i * 2] != oldverts[i * 2] || bakverts[i * 2 + 1] != oldverts[i * 2 + 1])
{
changed = true;
poly->Vertices[i]->set(
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oldverts[i * 2] + (bakverts[i * 2] - oldverts[i * 2]) * smoothratio,
oldverts[i * 2 + 1] + (bakverts[i * 2 + 1] - oldverts[i * 2 + 1]) * smoothratio);
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}
}
if (refcount == 0 && !changed)
{
UnlinkFromMap();
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Destroy();
}
else
{
bakcx = poly->CenterSpot.pos.X;
bakcy = poly->CenterSpot.pos.Y;
poly->CenterSpot.pos.X = bakcx + (bakcx - oldcx) * smoothratio;
poly->CenterSpot.pos.Y = bakcy + (bakcy - oldcy) * smoothratio;
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poly->ClearSubsectorLinks();
}
}
//==========================================================================
//
//
//
//==========================================================================
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void DPolyobjInterpolation::Serialize(FSerializer &arc)
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{
Super::Serialize(arc);
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arc("poly", poly)
("oldverts", oldverts)
("oldcx", oldcx)
("oldcy", oldcy);
if (arc.isReading()) bakverts.Resize(oldverts.Size());
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}
//==========================================================================
//
//
//
//==========================================================================
DInterpolation *side_t::SetInterpolation(int position)
{
if (textures[position].interpolation == nullptr)
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{
textures[position].interpolation = Create<DWallScrollInterpolation>(this, position);
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}
textures[position].interpolation->AddRef();
GC::WriteBarrier(textures[position].interpolation);
return textures[position].interpolation;
}
//==========================================================================
//
//
//
//==========================================================================
void side_t::StopInterpolation(int position)
{
if (textures[position].interpolation != nullptr)
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{
textures[position].interpolation->DelRef();
}
}
//==========================================================================
//
//
//
//==========================================================================
DInterpolation *sector_t::SetInterpolation(int position, bool attach)
{
if (interpolations[position] == nullptr)
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{
DInterpolation *interp;
switch (position)
{
case sector_t::CeilingMove:
interp = Create<DSectorPlaneInterpolation>(this, true, attach);
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break;
case sector_t::FloorMove:
interp = Create<DSectorPlaneInterpolation>(this, false, attach);
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break;
case sector_t::CeilingScroll:
interp = Create<DSectorScrollInterpolation>(this, true);
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break;
case sector_t::FloorScroll:
interp = Create<DSectorScrollInterpolation>(this, false);
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break;
default:
return nullptr;
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}
interpolations[position] = interp;
}
interpolations[position]->AddRef();
GC::WriteBarrier(interpolations[position]);
return interpolations[position];
}
//==========================================================================
//
//
//
//==========================================================================
DInterpolation *FPolyObj::SetInterpolation()
{
if (interpolation != nullptr)
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{
interpolation->AddRef();
}
else
{
interpolation = Create<DPolyobjInterpolation>(this);
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interpolation->AddRef();
}
GC::WriteBarrier(interpolation);
return interpolation;
}
//==========================================================================
//
//
//
//==========================================================================
void FPolyObj::StopInterpolation()
{
if (interpolation != nullptr)
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{
interpolation->DelRef();
}
}