mirror of https://github.com/ZDoom/gzdoom-gles.git
289 lines
8.8 KiB
C++
289 lines
8.8 KiB
C++
/*
|
|
** p_3dmidtex.cpp
|
|
**
|
|
** Eternity-style 3D-midtex handling
|
|
** (No original Eternity code here!)
|
|
**
|
|
**---------------------------------------------------------------------------
|
|
** 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 "templates.h"
|
|
#include "p_local.h"
|
|
|
|
|
|
//============================================================================
|
|
//
|
|
// P_Scroll3dMidtex
|
|
//
|
|
// Scrolls all sidedefs belonging to 3dMidtex lines attached to this sector
|
|
//
|
|
//============================================================================
|
|
|
|
bool P_Scroll3dMidtex(sector_t *sector, int crush, fixed_t move, bool ceiling)
|
|
{
|
|
extsector_t::midtex::plane &scrollplane = ceiling? sector->e->Midtex.Ceiling : sector->e->Midtex.Floor;
|
|
|
|
// First step: Change all lines' texture offsets
|
|
for(unsigned i = 0; i < scrollplane.AttachedLines.Size(); i++)
|
|
{
|
|
line_t *l = scrollplane.AttachedLines[i];
|
|
|
|
l->sidedef[0]->AddTextureYOffset(side_t::mid, move);
|
|
l->sidedef[1]->AddTextureYOffset(side_t::mid, move);
|
|
}
|
|
|
|
// Second step: Check all sectors whether the move is ok.
|
|
bool res = false;
|
|
|
|
for(unsigned i = 0; i < scrollplane.AttachedSectors.Size(); i++)
|
|
{
|
|
res |= P_ChangeSector(scrollplane.AttachedSectors[i], crush, move, 2, true);
|
|
}
|
|
return !res;
|
|
}
|
|
|
|
//============================================================================
|
|
//
|
|
// P_Start3DMidtexInterpolations
|
|
//
|
|
// Starts interpolators for every sidedef that is being changed by moving
|
|
// this sector
|
|
//
|
|
//============================================================================
|
|
|
|
void P_Start3dMidtexInterpolations(TArray<DInterpolation *> &list, sector_t *sector, bool ceiling)
|
|
{
|
|
extsector_t::midtex::plane &scrollplane = ceiling? sector->e->Midtex.Ceiling : sector->e->Midtex.Floor;
|
|
|
|
for(unsigned i = 0; i < scrollplane.AttachedLines.Size(); i++)
|
|
{
|
|
line_t *l = scrollplane.AttachedLines[i];
|
|
|
|
list.Push(l->sidedef[0]->SetInterpolation(side_t::mid));
|
|
list.Push(l->sidedef[1]->SetInterpolation(side_t::mid));
|
|
}
|
|
}
|
|
|
|
//============================================================================
|
|
//
|
|
// P_Attach3dMidtexLinesToSector
|
|
//
|
|
// Attaches 3dMidtex lines to a sector.
|
|
// If lineid is != 0, all lines with the matching line id will be added
|
|
// If tag is != 0, all lines touching a sector with the matching tag will be added
|
|
// If both are != 0, all lines with the matching line id that touch a sector with
|
|
// the matching tag will be added.
|
|
//
|
|
//============================================================================
|
|
|
|
void P_Attach3dMidtexLinesToSector(sector_t *sector, int lineid, int tag, bool ceiling)
|
|
{
|
|
int v;
|
|
|
|
if (lineid == 0 && tag == 0)
|
|
{
|
|
// invalid set of parameters
|
|
return;
|
|
}
|
|
|
|
extsector_t::midtex::plane &scrollplane = ceiling? sector->e->Midtex.Ceiling : sector->e->Midtex.Floor;
|
|
|
|
// Bit arrays that mark whether a line or sector is to be attached.
|
|
BYTE *found_lines = new BYTE[(numlines+7)/8];
|
|
BYTE *found_sectors = new BYTE[(numsectors+7)/8];
|
|
|
|
memset(found_lines, 0, sizeof (BYTE) * ((numlines+7)/8));
|
|
memset(found_sectors, 0, sizeof (BYTE) * ((numsectors+7)/8));
|
|
|
|
// mark all lines and sectors that are already attached to this one
|
|
// and clear the arrays. The old data will be re-added automatically
|
|
// from the marker arrays.
|
|
for (unsigned i=0; i < scrollplane.AttachedLines.Size(); i++)
|
|
{
|
|
int line = int(scrollplane.AttachedLines[i] - lines);
|
|
found_lines[line>>3] |= 1 << (line&7);
|
|
}
|
|
|
|
for (unsigned i=0; i < scrollplane.AttachedSectors.Size(); i++)
|
|
{
|
|
int sec = int(scrollplane.AttachedSectors[i] - sectors);
|
|
found_sectors[sec>>3] |= 1 << (sec&7);
|
|
}
|
|
|
|
scrollplane.AttachedLines.Clear();
|
|
scrollplane.AttachedSectors.Clear();
|
|
|
|
if (tag == 0)
|
|
{
|
|
for(int line = -1; (line = P_FindLineFromID(lineid,line)) >= 0; )
|
|
{
|
|
line_t *ln = &lines[line];
|
|
|
|
if (ln->frontsector == NULL || ln->backsector == NULL || !(ln->flags & ML_3DMIDTEX))
|
|
{
|
|
// Only consider two-sided lines with the 3DMIDTEX flag
|
|
continue;
|
|
}
|
|
found_lines[line>>3] |= 1 << (line&7);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for(int sec = -1; (sec = P_FindSectorFromTag(tag, sec)) >= 0; )
|
|
{
|
|
for (int line = 0; line < sectors[sec].linecount; line ++)
|
|
{
|
|
line_t *ln = sectors[sec].lines[line];
|
|
|
|
if (lineid != 0 && ln->id != lineid) continue;
|
|
|
|
if (ln->frontsector == NULL || ln->backsector == NULL || !(ln->flags & ML_3DMIDTEX))
|
|
{
|
|
// Only consider two-sided lines with the 3DMIDTEX flag
|
|
continue;
|
|
}
|
|
int lineno = int(ln-lines);
|
|
found_lines[lineno>>3] |= 1 << (lineno&7);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
for(int i=0; i < numlines; i++)
|
|
{
|
|
if (found_lines[i>>3] & (1 << (i&7)))
|
|
{
|
|
scrollplane.AttachedLines.Push(&lines[i]);
|
|
|
|
v = int(lines[i].frontsector - sectors);
|
|
assert(v < numsectors);
|
|
found_sectors[v>>3] |= 1 << (v&7);
|
|
|
|
v = int(lines[i].backsector - sectors);
|
|
assert(v < numsectors);
|
|
found_sectors[v>>3] |= 1 << (v&7);
|
|
}
|
|
}
|
|
|
|
for (int i=0; i < numsectors; i++)
|
|
{
|
|
if (found_sectors[i>>3] & (1 << (i&7)))
|
|
{
|
|
scrollplane.AttachedSectors.Push(§ors[i]);
|
|
}
|
|
}
|
|
|
|
delete[] found_lines;
|
|
delete[] found_sectors;
|
|
}
|
|
|
|
|
|
//============================================================================
|
|
//
|
|
// P_GetMidTexturePosition
|
|
//
|
|
// Retrieves top and bottom of the current line's mid texture.
|
|
//
|
|
//============================================================================
|
|
bool P_GetMidTexturePosition(const line_t *line, int sideno, fixed_t *ptextop, fixed_t *ptexbot)
|
|
{
|
|
if (line->sidedef[0]==NULL || line->sidedef[1]==NULL) return false;
|
|
|
|
side_t *side = line->sidedef[sideno];
|
|
FTextureID texnum = side->GetTexture(side_t::mid);
|
|
FTexture * tex= TexMan(texnum);
|
|
if (!tex) return false;
|
|
|
|
fixed_t y_offset = side->GetTextureYOffset(side_t::mid);
|
|
fixed_t textureheight = tex->GetScaledHeight() << FRACBITS;
|
|
if (tex->yScale != FRACUNIT && !tex->bWorldPanning)
|
|
{
|
|
y_offset = FixedDiv(y_offset, tex->yScale);
|
|
}
|
|
|
|
if(line->flags & ML_DONTPEGBOTTOM)
|
|
{
|
|
*ptexbot = y_offset +
|
|
MAX<fixed_t>(line->frontsector->GetPlaneTexZ(sector_t::floor), line->backsector->GetPlaneTexZ(sector_t::floor));
|
|
|
|
*ptextop = *ptexbot + textureheight;
|
|
}
|
|
else
|
|
{
|
|
*ptextop = y_offset +
|
|
MIN<fixed_t>(line->frontsector->GetPlaneTexZ(sector_t::ceiling), line->backsector->GetPlaneTexZ(sector_t::ceiling));
|
|
|
|
*ptexbot = *ptextop - textureheight;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
//============================================================================
|
|
//
|
|
// P_LineOpening_3dMidtex
|
|
//
|
|
// 3dMidtex part of P_LineOpening
|
|
//
|
|
//============================================================================
|
|
|
|
bool P_LineOpening_3dMidtex(AActor *thing, const line_t *linedef, fixed_t &opentop, fixed_t &openbottom)
|
|
{
|
|
fixed_t tt, tb;
|
|
|
|
if (P_GetMidTexturePosition(linedef, 0, &tt, &tb))
|
|
{
|
|
if (thing->z + (thing->height/2) < (tt + tb)/2)
|
|
{
|
|
if(tb < opentop) opentop = tb;
|
|
}
|
|
else
|
|
{
|
|
if(tt > openbottom) openbottom = tt;
|
|
|
|
// returns true if it touches the midtexture
|
|
return (abs(thing->z - tt) <= thing->MaxStepHeight);
|
|
}
|
|
}
|
|
return false;
|
|
|
|
/* still have to figure out what this code from Eternity means...
|
|
if((linedef->flags & ML_BLOCKMONSTERS) &&
|
|
!(mo->flags & (MF_FLOAT | MF_DROPOFF)) &&
|
|
D_abs(mo->z - textop) <= 24*FRACUNIT)
|
|
{
|
|
opentop = openbottom;
|
|
openrange = 0;
|
|
return;
|
|
}
|
|
*/
|
|
}
|