mirror of https://github.com/ZDoom/gzdoom.git
962 lines
24 KiB
C++
962 lines
24 KiB
C++
/*
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** r_interpolate.cpp
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**
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** Movement interpolation
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**
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**---------------------------------------------------------------------------
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** Copyright 2008 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include "r_data.h"
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#include "p_3dmidtex.h"
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#include "stats.h"
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#include "r_interpolate.h"
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#include "p_local.h"
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#include "i_system.h"
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#include "po_man.h"
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//==========================================================================
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//
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//
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//
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//==========================================================================
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class DSectorPlaneInterpolation : public DInterpolation
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{
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DECLARE_CLASS(DSectorPlaneInterpolation, DInterpolation)
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sector_t *sector;
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fixed_t oldheight, oldtexz;
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fixed_t bakheight, baktexz;
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bool ceiling;
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TArray<DInterpolation *> attached;
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public:
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DSectorPlaneInterpolation() {}
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DSectorPlaneInterpolation(sector_t *sector, bool plane, bool attach);
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void Destroy();
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void UpdateInterpolation();
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void Restore();
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void Interpolate(fixed_t smoothratio);
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void Serialize(FArchive &arc);
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size_t PointerSubstitution (DObject *old, DObject *notOld);
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size_t PropagateMark();
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};
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//==========================================================================
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//
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//
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//
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//==========================================================================
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class DSectorScrollInterpolation : public DInterpolation
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{
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DECLARE_CLASS(DSectorScrollInterpolation, DInterpolation)
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sector_t *sector;
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fixed_t oldx, oldy;
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fixed_t bakx, baky;
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bool ceiling;
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public:
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DSectorScrollInterpolation() {}
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DSectorScrollInterpolation(sector_t *sector, bool plane);
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void Destroy();
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void UpdateInterpolation();
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void Restore();
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void Interpolate(fixed_t smoothratio);
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void Serialize(FArchive &arc);
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};
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//==========================================================================
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//
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//
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//
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//==========================================================================
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class DWallScrollInterpolation : public DInterpolation
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{
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DECLARE_CLASS(DWallScrollInterpolation, DInterpolation)
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side_t *side;
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int part;
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fixed_t oldx, oldy;
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fixed_t bakx, baky;
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public:
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DWallScrollInterpolation() {}
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DWallScrollInterpolation(side_t *side, int part);
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void Destroy();
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void UpdateInterpolation();
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void Restore();
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void Interpolate(fixed_t smoothratio);
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void Serialize(FArchive &arc);
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};
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//==========================================================================
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//
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//
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//
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//==========================================================================
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class DPolyobjInterpolation : public DInterpolation
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{
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DECLARE_CLASS(DPolyobjInterpolation, DInterpolation)
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FPolyObj *poly;
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TArray<fixed_t> oldverts, bakverts;
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fixed_t oldcx, oldcy;
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fixed_t bakcx, bakcy;
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public:
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DPolyobjInterpolation() {}
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DPolyobjInterpolation(FPolyObj *poly);
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void Destroy();
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void UpdateInterpolation();
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void Restore();
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void Interpolate(fixed_t smoothratio);
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void Serialize(FArchive &arc);
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};
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//==========================================================================
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//
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//
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//
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//==========================================================================
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IMPLEMENT_ABSTRACT_CLASS(DInterpolation)
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IMPLEMENT_CLASS(DSectorPlaneInterpolation)
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IMPLEMENT_CLASS(DSectorScrollInterpolation)
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IMPLEMENT_CLASS(DWallScrollInterpolation)
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IMPLEMENT_CLASS(DPolyobjInterpolation)
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//==========================================================================
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//
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// Important note:
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// The linked list of interpolations and the pointers in the interpolated
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// objects are not processed by the garbage collector. This is intentional!
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//
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// If an interpolation is no longer owned by any thinker it should
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// be destroyed even if the interpolator still has a link to it.
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//
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// When such an interpolation is destroyed by the garbage collector it
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// will automatically be unlinked from the list.
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//
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//==========================================================================
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FInterpolator interpolator;
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//==========================================================================
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//
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//
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//
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//==========================================================================
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int FInterpolator::CountInterpolations ()
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{
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return count;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FInterpolator::UpdateInterpolations()
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{
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for (DInterpolation *probe = Head; probe != NULL; probe = probe->Next)
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{
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probe->UpdateInterpolation ();
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}
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FInterpolator::AddInterpolation(DInterpolation *interp)
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{
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interp->Next = Head;
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if (Head != NULL) Head->Prev = &interp->Next;
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Head = interp;
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interp->Prev = &Head;
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count++;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FInterpolator::RemoveInterpolation(DInterpolation *interp)
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{
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if (interp->Prev != NULL)
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{
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*interp->Prev = interp->Next;
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if (interp->Next != NULL) interp->Next->Prev = interp->Prev;
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interp->Next = NULL;
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interp->Prev = NULL;
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count--;
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}
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FInterpolator::DoInterpolations(fixed_t smoothratio)
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{
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if (smoothratio == FRACUNIT)
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{
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didInterp = false;
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return;
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}
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didInterp = true;
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for (DInterpolation *probe = Head; probe != NULL; probe = probe->Next)
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{
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probe->Interpolate(smoothratio);
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}
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FInterpolator::RestoreInterpolations()
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{
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if (didInterp)
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{
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didInterp = false;
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for (DInterpolation *probe = Head; probe != NULL; probe = probe->Next)
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{
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probe->Restore();
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}
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}
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FInterpolator::ClearInterpolations()
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{
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for (DInterpolation *probe = Head; probe != NULL; )
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{
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DInterpolation *next = probe->Next;
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probe->Destroy();
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probe = next;
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}
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Head = NULL;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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//==========================================================================
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//
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//
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//
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//==========================================================================
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DInterpolation::DInterpolation()
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{
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Next = NULL;
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Prev = NULL;
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refcount = 0;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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int DInterpolation::AddRef()
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{
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return ++refcount;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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int DInterpolation::DelRef()
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{
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if (refcount > 0) --refcount;
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if (refcount <= 0 && !(ObjectFlags & OF_EuthanizeMe))
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{
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Destroy();
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}
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return refcount;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void DInterpolation::Destroy()
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{
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interpolator.RemoveInterpolation(this);
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refcount = 0;
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Super::Destroy();
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void DInterpolation::Serialize(FArchive &arc)
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{
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Super::Serialize(arc);
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arc << refcount;
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if (arc.IsLoading())
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{
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interpolator.AddInterpolation(this);
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}
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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//==========================================================================
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//
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//
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//
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//==========================================================================
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DSectorPlaneInterpolation::DSectorPlaneInterpolation(sector_t *_sector, bool _plane, bool attach)
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{
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sector = _sector;
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ceiling = _plane;
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UpdateInterpolation ();
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if (attach)
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{
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P_Start3dMidtexInterpolations(attached, sector, ceiling);
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P_StartLinkedSectorInterpolations(attached, sector, ceiling);
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}
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interpolator.AddInterpolation(this);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void DSectorPlaneInterpolation::Destroy()
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{
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if (ceiling)
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{
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assert(sector->interpolations[sector_t::CeilingMove] == this);
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sector->interpolations[sector_t::CeilingMove] = NULL;
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}
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else
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{
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assert(sector->interpolations[sector_t::FloorMove] == this);
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sector->interpolations[sector_t::FloorMove] = NULL;
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}
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for(unsigned i=0; i<attached.Size(); i++)
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{
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attached[i]->DelRef();
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}
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Super::Destroy();
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void DSectorPlaneInterpolation::UpdateInterpolation()
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{
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if (!ceiling)
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{
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oldheight = sector->floorplane.d;
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oldtexz = sector->GetPlaneTexZ(sector_t::floor);
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}
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else
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{
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oldheight = sector->ceilingplane.d;
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oldtexz = sector->GetPlaneTexZ(sector_t::ceiling);
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}
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void DSectorPlaneInterpolation::Restore()
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{
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if (!ceiling)
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{
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sector->floorplane.d = bakheight;
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sector->SetPlaneTexZ(sector_t::floor, baktexz);
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}
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else
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{
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sector->ceilingplane.d = bakheight;
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sector->SetPlaneTexZ(sector_t::ceiling, baktexz);
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}
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P_RecalculateAttached3DFloors(sector);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void DSectorPlaneInterpolation::Interpolate(fixed_t smoothratio)
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{
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fixed_t *pheight;
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int pos;
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if (!ceiling)
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{
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pheight = §or->floorplane.d;
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pos = sector_t::floor;
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}
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else
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{
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pheight = §or->ceilingplane.d;
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pos = sector_t::ceiling;
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}
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bakheight = *pheight;
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baktexz = sector->GetPlaneTexZ(pos);
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*pheight = oldheight + FixedMul(bakheight - oldheight, smoothratio);
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sector->SetPlaneTexZ(pos, oldtexz + FixedMul(baktexz - oldtexz, smoothratio));
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P_RecalculateAttached3DFloors(sector);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void DSectorPlaneInterpolation::Serialize(FArchive &arc)
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{
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Super::Serialize(arc);
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arc << sector << ceiling << oldheight << oldtexz << attached;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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size_t DSectorPlaneInterpolation::PointerSubstitution (DObject *old, DObject *notOld)
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{
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int subst = 0;
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for(unsigned i=0; i<attached.Size(); i++)
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{
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if (attached[i] == old)
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{
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attached[i] = (DInterpolation*)notOld;
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subst++;
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}
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}
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return subst;
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}
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//==========================================================================
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//
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//
|
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//
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//==========================================================================
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size_t DSectorPlaneInterpolation::PropagateMark()
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{
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for(unsigned i=0; i<attached.Size(); i++)
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{
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GC::Mark(attached[i]);
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}
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return Super::PropagateMark();
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}
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//==========================================================================
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//
|
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//
|
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//
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//==========================================================================
|
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//==========================================================================
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//
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//
|
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//
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//==========================================================================
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|
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DSectorScrollInterpolation::DSectorScrollInterpolation(sector_t *_sector, bool _plane)
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{
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sector = _sector;
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ceiling = _plane;
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UpdateInterpolation ();
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interpolator.AddInterpolation(this);
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}
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//==========================================================================
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|
//
|
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//
|
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//
|
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//==========================================================================
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|
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void DSectorScrollInterpolation::Destroy()
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{
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if (ceiling)
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{
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assert(sector->interpolations[sector_t::CeilingScroll] == this);
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sector->interpolations[sector_t::CeilingScroll] = NULL;
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}
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else
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{
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assert(sector->interpolations[sector_t::FloorScroll] == this);
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sector->interpolations[sector_t::FloorScroll] = NULL;
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}
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Super::Destroy();
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}
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|
|
|
//==========================================================================
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|
//
|
|
//
|
|
//
|
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//==========================================================================
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|
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void DSectorScrollInterpolation::UpdateInterpolation()
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{
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oldx = sector->GetXOffset(ceiling);
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oldy = sector->GetYOffset(ceiling, false);
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}
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|
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//==========================================================================
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|
//
|
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//
|
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//
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//==========================================================================
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|
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void DSectorScrollInterpolation::Restore()
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{
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sector->SetXOffset(ceiling, bakx);
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sector->SetYOffset(ceiling, baky);
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}
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//==========================================================================
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|
//
|
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//
|
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//
|
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//==========================================================================
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|
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void DSectorScrollInterpolation::Interpolate(fixed_t smoothratio)
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{
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bakx = sector->GetXOffset(ceiling);
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baky = sector->GetYOffset(ceiling, false);
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sector->SetXOffset(ceiling, oldx + FixedMul(bakx - oldx, smoothratio));
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sector->SetYOffset(ceiling, oldy + FixedMul(baky - oldy, smoothratio));
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}
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|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DSectorScrollInterpolation::Serialize(FArchive &arc)
|
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{
|
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Super::Serialize(arc);
|
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arc << sector << ceiling << oldx << oldy;
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}
|
|
|
|
|
|
//==========================================================================
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|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
DWallScrollInterpolation::DWallScrollInterpolation(side_t *_side, int _part)
|
|
{
|
|
side = _side;
|
|
part = _part;
|
|
UpdateInterpolation ();
|
|
interpolator.AddInterpolation(this);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DWallScrollInterpolation::Destroy()
|
|
{
|
|
assert(side->textures[part].interpolation == this);
|
|
side->textures[part].interpolation = NULL;
|
|
Super::Destroy();
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DWallScrollInterpolation::UpdateInterpolation()
|
|
{
|
|
oldx = side->GetTextureXOffset(part);
|
|
oldy = side->GetTextureYOffset(part);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DWallScrollInterpolation::Restore()
|
|
{
|
|
side->SetTextureXOffset(part, bakx);
|
|
side->SetTextureYOffset(part, baky);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DWallScrollInterpolation::Interpolate(fixed_t smoothratio)
|
|
{
|
|
bakx = side->GetTextureXOffset(part);
|
|
baky = side->GetTextureYOffset(part);
|
|
|
|
side->SetTextureXOffset(part, oldx + FixedMul(bakx - oldx, smoothratio));
|
|
side->SetTextureYOffset(part, oldy + FixedMul(baky - oldy, smoothratio));
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DWallScrollInterpolation::Serialize(FArchive &arc)
|
|
{
|
|
Super::Serialize(arc);
|
|
arc << side << part << oldx << oldy;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
DPolyobjInterpolation::DPolyobjInterpolation(FPolyObj *po)
|
|
{
|
|
poly = po;
|
|
oldverts.Resize(po->Vertices.Size() << 1);
|
|
bakverts.Resize(po->Vertices.Size() << 1);
|
|
UpdateInterpolation ();
|
|
interpolator.AddInterpolation(this);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DPolyobjInterpolation::Destroy()
|
|
{
|
|
assert(poly->interpolation == this);
|
|
poly->interpolation = NULL;
|
|
Super::Destroy();
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DPolyobjInterpolation::UpdateInterpolation()
|
|
{
|
|
for(unsigned int i = 0; i < poly->Vertices.Size(); i++)
|
|
{
|
|
oldverts[i*2 ] = poly->Vertices[i]->x;
|
|
oldverts[i*2+1] = poly->Vertices[i]->y;
|
|
}
|
|
oldcx = poly->CenterSpot.x;
|
|
oldcy = poly->CenterSpot.y;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DPolyobjInterpolation::Restore()
|
|
{
|
|
for(unsigned int i = 0; i < poly->Vertices.Size(); i++)
|
|
{
|
|
poly->Vertices[i]->x = bakverts[i*2 ];
|
|
poly->Vertices[i]->y = bakverts[i*2+1];
|
|
}
|
|
poly->CenterSpot.x = bakcx;
|
|
poly->CenterSpot.y = bakcy;
|
|
poly->ClearSubsectorLinks();
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DPolyobjInterpolation::Interpolate(fixed_t smoothratio)
|
|
{
|
|
for(unsigned int i = 0; i < poly->Vertices.Size(); i++)
|
|
{
|
|
fixed_t *px = &poly->Vertices[i]->x;
|
|
fixed_t *py = &poly->Vertices[i]->y;
|
|
|
|
bakverts[i*2 ] = *px;
|
|
bakverts[i*2+1] = *py;
|
|
|
|
*px = oldverts[i*2 ] + FixedMul(bakverts[i*2 ] - oldverts[i*2 ], smoothratio);
|
|
*py = oldverts[i*2+1] + FixedMul(bakverts[i*2+1] - oldverts[i*2+1], smoothratio);
|
|
}
|
|
bakcx = poly->CenterSpot.x;
|
|
bakcy = poly->CenterSpot.y;
|
|
poly->CenterSpot.x = bakcx + FixedMul(bakcx - oldcx, smoothratio);
|
|
poly->CenterSpot.y = bakcy + FixedMul(bakcy - oldcy, smoothratio);
|
|
|
|
poly->ClearSubsectorLinks();
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void DPolyobjInterpolation::Serialize(FArchive &arc)
|
|
{
|
|
Super::Serialize(arc);
|
|
int po = int(poly - polyobjs);
|
|
arc << po << oldverts;
|
|
poly = polyobjs + po;
|
|
|
|
arc << oldcx << oldcy;
|
|
if (arc.IsLoading()) bakverts.Resize(oldverts.Size());
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
DInterpolation *side_t::SetInterpolation(int position)
|
|
{
|
|
if (textures[position].interpolation == NULL)
|
|
{
|
|
textures[position].interpolation = new DWallScrollInterpolation(this, position);
|
|
}
|
|
textures[position].interpolation->AddRef();
|
|
GC::WriteBarrier(textures[position].interpolation);
|
|
return textures[position].interpolation;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void side_t::StopInterpolation(int position)
|
|
{
|
|
if (textures[position].interpolation != NULL)
|
|
{
|
|
textures[position].interpolation->DelRef();
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
DInterpolation *sector_t::SetInterpolation(int position, bool attach)
|
|
{
|
|
if (interpolations[position] == NULL)
|
|
{
|
|
DInterpolation *interp;
|
|
switch (position)
|
|
{
|
|
case sector_t::CeilingMove:
|
|
interp = new DSectorPlaneInterpolation(this, true, attach);
|
|
break;
|
|
|
|
case sector_t::FloorMove:
|
|
interp = new DSectorPlaneInterpolation(this, false, attach);
|
|
break;
|
|
|
|
case sector_t::CeilingScroll:
|
|
interp = new DSectorScrollInterpolation(this, true);
|
|
break;
|
|
|
|
case sector_t::FloorScroll:
|
|
interp = new DSectorScrollInterpolation(this, false);
|
|
break;
|
|
|
|
default:
|
|
return NULL;
|
|
}
|
|
interpolations[position] = interp;
|
|
}
|
|
interpolations[position]->AddRef();
|
|
GC::WriteBarrier(interpolations[position]);
|
|
return interpolations[position];
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void sector_t::StopInterpolation(int position)
|
|
{
|
|
if (interpolations[position] != NULL)
|
|
{
|
|
interpolations[position]->DelRef();
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
DInterpolation *FPolyObj::SetInterpolation()
|
|
{
|
|
if (interpolation != NULL)
|
|
{
|
|
interpolation->AddRef();
|
|
}
|
|
else
|
|
{
|
|
interpolation = new DPolyobjInterpolation(this);
|
|
interpolation->AddRef();
|
|
}
|
|
GC::WriteBarrier(interpolation);
|
|
return interpolation;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void FPolyObj::StopInterpolation()
|
|
{
|
|
if (interpolation != NULL)
|
|
{
|
|
interpolation->DelRef();
|
|
}
|
|
}
|
|
|
|
|
|
ADD_STAT (interpolations)
|
|
{
|
|
FString out;
|
|
out.Format ("%d interpolations", interpolator.CountInterpolations ());
|
|
return out;
|
|
}
|
|
|
|
|