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Fix FOFs which use transferline flag and many linedefs randomly crashing

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linenum could go out of bounds if you use more than 4 linedefs for such setup, hence making the game unable to retrieve textures and therefore crashing the games sometimes

many thx to indev c:
This commit is contained in:
Alug 2023-11-21 15:27:07 +01:00
parent 62294dfe35
commit 0cc6c0ed4c
2 changed files with 3 additions and 3 deletions
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4
src/hardware/hw_main.c
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@ -1639,7 +1639,7 @@ void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
if (rover->master->flags & ML_TFERLINE)
{
size_t linenum = gr_curline->linedef-gr_backsector->lines[0];
size_t linenum = min(gr_curline->linedef-gr_backsector->lines[0], rover->master->frontsector->linecount);
newline = rover->master->frontsector->lines[0] + linenum;
texnum = R_GetTextureNum(sides[newline->sidenum[0]].midtexture);
}
@ -1798,7 +1798,7 @@ void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
if (rover->master->flags & ML_TFERLINE)
{
size_t linenum = gr_curline->linedef-gr_backsector->lines[0];
size_t linenum = min(gr_curline->linedef-gr_backsector->lines[0], rover->master->frontsector->linecount);
newline = rover->master->frontsector->lines[0] + linenum;
texnum = R_GetTextureNum(sides[newline->sidenum[0]].midtexture);
}

2
src/r_segs.c
View file

@ -733,7 +733,7 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
if (pfloor->master->flags & ML_TFERLINE)
{
size_t linenum = curline->linedef-backsector->lines[0];
size_t linenum = min(curline->linedef-backsector->lines[0], pfloor->master->frontsector->linecount);
newline = pfloor->master->frontsector->lines[0] + linenum;
texnum = R_GetTextureNum(sides[newline->sidenum[0]].midtexture);
}