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Adds ML_MIDTEXINVISWALL linedef flag

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A linedef with a midtexture and the flag set will have its collision extended to the ceiling, invisible wall style
Tripwires have this behavior by default, and the flag inverts it
This commit is contained in:
Ashnal 2025-10-01 20:46:41 -04:00
parent 8744023a87
commit 0418507f5a
4 changed files with 19 additions and 1 deletions
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5
src/deh_lua.c
View file

@ -382,6 +382,11 @@ static inline int lib_getenum(lua_State *L)
lua_pushinteger(L, (lua_Integer)ML_WRAPMIDTEX);
return 1;
}
if (fastcmp(p, "EFFECT6"))
{
lua_pushinteger(L, (lua_Integer)ML_MIDTEXINVISWALL);
return 1;
}
if (mathlib) return luaL_error(L, "linedef flag '%s' could not be found.\n", word);
return 0;
}

3
src/doomdata.h
View file

@ -159,6 +159,9 @@ enum
// Transfers FOF properties.
ML_TFERLINE = 0x00008000,
// Like ML_WRAPMIDTEX, but invisible wall style instead
ML_MIDTEXINVISWALL = 0x00010000,
};
enum

8
src/p_maputl.c
View file

@ -509,7 +509,9 @@ P_GetMidtextureTopBottom
else
#endif
{
if ((linedef->flags & ML_WRAPMIDTEX) && !side->repeatcnt) // "infinite" repeat
const boolean invismidtexwall = !!(P_IsLineTripWire(linedef)) ^ !!(linedef->flags & ML_MIDTEXINVISWALL);
if (((linedef->flags & ML_WRAPMIDTEX) && !side->repeatcnt) || invismidtexwall) // "infinite" repeat
{
texbottom += side->rowoffset;
textop += side->rowoffset;
@ -782,6 +784,10 @@ void P_LineOpening(line_t *linedef, mobj_t *mobj, opening_t *open)
fixed_t textop, texbottom;
fixed_t texmid, delta1, delta2;
// Should we override typical behavior and extend teh midtexture to the ceiling, to include FoFs?
// const boolean inifiniteheight = linedef->flags & ML_INFINITEMIDTEXTUREHEIGHT;
if (P_GetMidtextureTopBottom(linedef, cross.x, cross.y, &textop, &texbottom))
{
texmid = texbottom+(textop-texbottom)/2;

4
src/p_setup.cpp
View file

@ -1977,6 +1977,8 @@ static void ParseTextmapLinedefParameter(UINT32 i, const char *param, const char
lines[i].flags |= ML_NOTBOUNCY;
else if (fastcmp(param, "transfer") && fastcmp("true", val))
lines[i].flags |= ML_TFERLINE;
else if (fastcmp(param, "midtexinviswall") && fastcmp("true", val))
lines[i].flags |= ML_MIDTEXINVISWALL;
// Activation flags
else if (fastcmp(param, "repeatspecial") && fastcmp("true", val))
lines[i].activation |= SPAC_REPEATSPECIAL;
@ -2787,6 +2789,8 @@ static void P_WriteTextmap(void)
fprintf(f, "notbouncy = true;\n");
if (wlines[i].flags & ML_TFERLINE)
fprintf(f, "transfer = true;\n");
if (wlines[i].flags & ML_MIDTEXINVISWALL)
fprintf(f, "midtexinviswall = true;\n");
if (wlines[i].activation & SPAC_REPEATSPECIAL)
fprintf(f, "repeatspecial = true;\n");
if (wlines[i].activation & SPAC_CROSS)