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Line special 777/778: No Knuckles to mirror slope on opposite plane

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This commit is contained in:
James R 2020-09-24 12:19:19 -07:00
parent 1403c49f50
commit efbec2c252
1 changed files with 42 additions and 5 deletions
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47
src/slope_anchors.c
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@ -368,10 +368,35 @@ new_vertex_slope
return slope;
}
static mapthing_t **
flip_slope
(
mapthing_t ** origin,
const sector_t * sector
){
mapthing_t * copy = Z_Malloc(3 * sizeof (mapthing_t), PU_LEVEL, NULL);
mapthing_t ** anchors = Z_Malloc(3 * sizeof (mapthing_t *), PU_LEVEL, NULL);
size_t i;
for (i = 0; i < 3; ++i)
{
memcpy(&copy[i], origin[i], sizeof copy[i]);
copy[i].options ^= MTF_OBJECTFLIP;
copy[i].z = anchor_height(&copy[i], sector);
anchors[i] = &copy[i];
}
return anchors;
}
static void
slope_sector
(
pslope_t ** slope,
pslope_t ** alt,
sector_t * sector,
const INT16 flags,
const struct anchor_list * list,
@ -382,6 +407,13 @@ slope_sector
if (anchors != NULL)
{
(*slope) = new_vertex_slope(anchors, flags);
/* No Knuckles - invert slope to opposite side */
if (flags & ML_NOKNUX)
{
(*alt) = new_vertex_slope(flip_slope(anchors, sector), flags);
}
sector->hasslope = true;
}
}
@ -398,26 +430,31 @@ make_anchored_slope
CEILING = 0x2,
};
const INT16 flags = line->flags;
INT16 flags = line->flags;
const int side = ( flags & ML_NOCLIMB ) != 0;
sector_t * sector;
sector_t * s;
if (side == 0 || flags & ML_TWOSIDED)
{
sector = sides[line->sidenum[side]].sector;
s = sides[line->sidenum[side]].sector;
if (plane == FLOOR|CEILING)
{
flags &= ~ML_NOKNUX;
}
if (plane & FLOOR)
{
slope_sector
(&sector->f_slope, sector, flags, &floor_anchors, line->tag);
(&s->f_slope, &s->c_slope, s, flags, &floor_anchors, line->tag);
}
if (plane & CEILING)
{
slope_sector
(&sector->c_slope, sector, flags, &ceiling_anchors, line->tag);
(&s->c_slope, &s->f_slope, s, flags, &ceiling_anchors, line->tag);
}
}
}