void ProcessLineDefs()
{
int sidecount = 0;
for(unsigned i = 0, skipped = 0; i < ParsedLines.Size();)
{
// Relocate the vertices
intptr_t v1i = intptr_t(ParsedLines[i].v1);
intptr_t v2i = intptr_t(ParsedLines[i].v2);
if (v1i >= numvertexes || v2i >= numvertexes || v1i < 0 || v2i < 0)
{
I_Error ("Line %d has invalid vertices: %zd and/or %zd.\nThe map only contains %d vertices.", i+skipped, v1i, v2i, numvertexes);
}
else if (v1i == v2i ||
(vertexes[v1i].x == vertexes[v2i].x && vertexes[v1i].y == vertexes[v2i].y))
{
Printf ("Removing 0-length line %d\n", i+skipped);
ParsedLines.Delete(i);
ForceNodeBuild = true;
skipped++;
}
else
{
ParsedLines[i].v1 = &vertexes[v1i];
ParsedLines[i].v2 = &vertexes[v2i];
if (ParsedLines[i].sidedef[0] != NULL)
sidecount++;
if (ParsedLines[i].sidedef[1] != NULL)
sidecount++;
linemap.Push(i+skipped);
i++;
}
}
numlines = ParsedLines.Size();
numsides = sidecount;
lines = new line_t[numlines];
sides = new side_t[numsides];
int line, side;
for(line = 0, side = 0; line < numlines; line++)
{
short tempalpha[2] = { SHRT_MIN, SHRT_MIN };
lines[line] = ParsedLines[line];
for(int sd = 0; sd < 2; sd++)
{
if (lines[line].sidedef[sd] != NULL)
{
int mapside = int(intptr_t(lines[line].sidedef[sd]))-1;
if (mapside < sidecount)
{
sides[side] = ParsedSides[mapside];
sides[side].linedef = &lines[line];
sides[side].sector = §ors[intptr_t(sides[side].sector)];
lines[line].sidedef[sd] = &sides[side];
P_ProcessSideTextures(!isExtended, &sides[side], sides[side].sector, &ParsedSideTextures[mapside],
lines[line].special, lines[line].args[0], &tempalpha[sd], missingTex);
side++;
}
else
{
lines[line].sidedef[sd] = NULL;
}
}
}
P_AdjustLine(&lines[line]);
P_FinishLoadingLineDef(&lines[line], tempalpha[0]);
}
assert(side <= numsides);
if (side < numsides)
{
Printf("Map had %d invalid side references\n", numsides - side);
numsides = side;
}
}
static void LoadWalls (walltype *walls, int numwalls, sectortype *bsec)
{
int i, j;
// Setting numvertexes to the same as numwalls is overly conservative,
// but the extra vertices will be removed during the BSP building pass.
numsides = numvertexes = numwalls;
numlines = 0;
sides = new side_t[numsides];
memset (sides, 0, numsides*sizeof(side_t));
vertexes = new vertex_t[numvertexes];
numvertexes = 0;
// First mark each sidedef with the sector it belongs to
for (i = 0; i < numsectors; ++i)
{
if (bsec[i].wallptr >= 0)
{
for (j = 0; j < bsec[i].wallnum; ++j)
{
sides[j + bsec[i].wallptr].sector = sectors + i;
}
}
}
// Now copy wall properties to their matching sidedefs
for (i = 0; i < numwalls; ++i)
{
char tnam[9];
FTextureID overpic, pic;
mysnprintf (tnam, countof(tnam), "BTIL%04d", LittleShort(walls[i].picnum));
pic = TexMan.GetTexture (tnam, FTexture::TEX_Build);
mysnprintf (tnam, countof(tnam), "BTIL%04d", LittleShort(walls[i].overpicnum));
overpic = TexMan.GetTexture (tnam, FTexture::TEX_Build);
walls[i].x = LittleLong(walls[i].x);
walls[i].y = LittleLong(walls[i].y);
walls[i].point2 = LittleShort(walls[i].point2);
walls[i].cstat = LittleShort(walls[i].cstat);
walls[i].nextwall = LittleShort(walls[i].nextwall);
walls[i].nextsector = LittleShort(walls[i].nextsector);
sides[i].SetTextureXOffset(walls[i].xpanning << FRACBITS);
sides[i].SetTextureYOffset(walls[i].ypanning << FRACBITS);
sides[i].SetTexture(side_t::top, pic);
sides[i].SetTexture(side_t::bottom, pic);
if (walls[i].nextsector < 0 || (walls[i].cstat & 32))
{
sides[i].SetTexture(side_t::mid, pic);
}
else if (walls[i].cstat & 16)
{
sides[i].SetTexture(side_t::mid, overpic);
}
else
{
sides[i].SetTexture(side_t::mid, FNullTextureID());
}
sides[i].TexelLength = walls[i].xrepeat * 8;
sides[i].SetTextureYScale(walls[i].yrepeat << (FRACBITS - 3));
sides[i].SetTextureXScale(FRACUNIT);
sides[i].SetLight(SHADE2LIGHT(walls[i].shade));
sides[i].Flags = WALLF_ABSLIGHTING;
sides[i].RightSide = walls[i].point2;
sides[walls[i].point2].LeftSide = i;
if (walls[i].nextwall >= 0 && walls[i].nextwall <= i)
{
sides[i].linedef = sides[walls[i].nextwall].linedef;
}
else
{
sides[i].linedef = (line_t*)(intptr_t)(numlines++);
}
}
// Set line properties that Doom doesn't store per-sidedef
lines = new line_t[numlines];
memset (lines, 0, numlines*sizeof(line_t));
for (i = 0, j = -1; i < numwalls; ++i)
{
if (walls[i].nextwall >= 0 && walls[i].nextwall <= i)
{
continue;
}
j = int(intptr_t(sides[i].linedef));
lines[j].sidedef[0] = (side_t*)(intptr_t)i;
lines[j].sidedef[1] = (side_t*)(intptr_t)walls[i].nextwall;
lines[j].v1 = FindVertex (walls[i].x, walls[i].y);
lines[j].v2 = FindVertex (walls[walls[i].point2].x, walls[walls[i].point2].y);
lines[j].frontsector = sides[i].sector;
lines[j].flags |= ML_WRAP_MIDTEX;
if (walls[i].nextsector >= 0)
{
lines[j].backsector = sectors + walls[i].nextsector;
lines[j].flags |= ML_TWOSIDED;
}
else
{
lines[j].backsector = NULL;
}
P_AdjustLine (&lines[j]);
if (walls[i].cstat & 128)
{
if (walls[i].cstat & 512)
{
lines[j].Alpha = FRACUNIT/3;
}
else
{
lines[j].Alpha = FRACUNIT*2/3;
}
}
if (walls[i].cstat & 1)
{
lines[j].flags |= ML_BLOCKING;
}
if (walls[i].nextwall < 0)
{
if (walls[i].cstat & 4)
{
lines[j].flags |= ML_DONTPEGBOTTOM;
}
}
else
{
if (walls[i].cstat & 4)
{
lines[j].flags |= ML_DONTPEGTOP;
}
else
{
lines[j].flags |= ML_DONTPEGBOTTOM;
}
}
if (walls[i].cstat & 64)
{
lines[j].flags |= ML_BLOCKEVERYTHING;
}
}
// Finish setting sector properties that depend on walls
for (i = 0; i < numsectors; ++i, ++bsec)
{
SlopeWork slope;
slope.wal = &walls[bsec->wallptr];
slope.wal2 = &walls[slope.wal->point2];
slope.dx = slope.wal2->x - slope.wal->x;
slope.dy = slope.wal2->y - slope.wal->y;
slope.i = long (sqrt ((double)(slope.dx*slope.dx+slope.dy*slope.dy))) << 5;
if (slope.i == 0)
{
continue;
}
if ((bsec->floorstat & 2) && (bsec->floorheinum != 0))
{ // floor is sloped
slope.heinum = -LittleShort(bsec->floorheinum);
slope.z[0] = slope.z[1] = slope.z[2] = -bsec->floorz;
CalcPlane (slope, sectors[i].floorplane);
}
if ((bsec->ceilingstat & 2) && (bsec->ceilingheinum != 0))
{ // ceiling is sloped
slope.heinum = -LittleShort(bsec->ceilingheinum);
slope.z[0] = slope.z[1] = slope.z[2] = -bsec->ceilingz;
CalcPlane (slope, sectors[i].ceilingplane);
}
int linenum = int(intptr_t(sides[bsec->wallptr].linedef));
int sidenum = int(intptr_t(lines[linenum].sidedef[1]));
if (bsec->floorstat & 64)
{ // floor is aligned to first wall
P_AlignFlat (linenum, sidenum == bsec->wallptr, 0);
}
if (bsec->ceilingstat & 64)
{ // ceiling is aligned to first wall
P_AlignFlat (linenum, sidenum == bsec->wallptr, 0);
}
}
for (i = 0; i < numlines; i++)
{
intptr_t front = intptr_t(lines[i].sidedef[0]);
intptr_t back = intptr_t(lines[i].sidedef[1]);
lines[i].sidedef[0] = front >= 0 ? &sides[front] : NULL;
lines[i].sidedef[1] = back >= 0 ? &sides[back] : NULL;
}
for (i = 0; i < numsides; i++)
{
assert(sides[i].sector != NULL);
sides[i].linedef = &lines[intptr_t(sides[i].linedef)];
}
}