diff --git a/src/deh_lua.c b/src/deh_lua.c
index 1b177eb25724e38eb42f81f08ff9919177372c29..0b789547b266aeb238701ca6b34c4f8702c334fb 100644
--- a/src/deh_lua.c
+++ b/src/deh_lua.c
@@ -277,8 +277,8 @@ static int ScanConstants(lua_State *L, boolean mathlib, const char *word)
}
else if (fastncmp("MTF_", word, 4)) {
p = word+4;
- for (i = 0; i < 4; i++)
- if (MAPTHINGFLAG_LIST[i] && fastcmp(p, MAPTHINGFLAG_LIST[i])) {
+ for (i = 0; MAPTHINGFLAG_LIST[i]; i++)
+ if (fastcmp(p, MAPTHINGFLAG_LIST[i])) {
CacheAndPushConstant(L, word, ((lua_Integer)1<<i));
return 1;
}
diff --git a/src/deh_tables.c b/src/deh_tables.c
index 80f4e5b1a20cc097d8022fff6728dc4dab03473d..3580e15c6eb2a3dc91502f4d6d64d15c34e6270c 100644
--- a/src/deh_tables.c
+++ b/src/deh_tables.c
@@ -4410,11 +4410,12 @@ const char *const MOBJEFLAG_LIST[] = {
NULL
};
-const char *const MAPTHINGFLAG_LIST[4] = {
+const char *const MAPTHINGFLAG_LIST[] = {
"EXTRA", // Extra flag for objects.
"OBJECTFLIP", // Reverse gravity flag for objects.
"OBJECTSPECIAL", // Special flag used with certain objects.
- "AMBUSH" // Deaf monsters/do not react to sound.
+ "AMBUSH", // Deaf monsters/do not react to sound.
+ "ABSOLUTEZ" // Absolute spawn height flag for objects.
};
const char *const PLAYERFLAG_LIST[] = {
diff --git a/src/deh_tables.h b/src/deh_tables.h
index 6731f171d867b2e2c796d55a38879b6a428c3129..42716f9b4bd271c98aca83737f419670d862d7e5 100644
--- a/src/deh_tables.h
+++ b/src/deh_tables.h
@@ -62,7 +62,7 @@ extern const char *const MOBJTYPE_LIST[];
extern const char *const MOBJFLAG_LIST[];
extern const char *const MOBJFLAG2_LIST[]; // \tMF2_(\S+).*// (.+) --> \t"\1", // \2
extern const char *const MOBJEFLAG_LIST[];
-extern const char *const MAPTHINGFLAG_LIST[4];
+extern const char *const MAPTHINGFLAG_LIST[];
extern const char *const PLAYERFLAG_LIST[];
extern const char *const GAMETYPERULE_LIST[];
extern const char *const ML_LIST[]; // Linedef flags
diff --git a/src/doomdata.h b/src/doomdata.h
index 576fe03e29e9abc18659ce14972bfb41d5b1756e..276e03297b6f0d453ad0d0c65fc8bd9196d9680c 100644
--- a/src/doomdata.h
+++ b/src/doomdata.h
@@ -62,6 +62,10 @@ enum
#define MTF_AMBUSH 8
// Do not use bit five or after, as they are used for object z-offsets.
+// Unless it's exclusive to UDMF.
+
+// Flag to use Z as absolute spawn height, ignoring the floor and ceiling.
+#define MTF_ABSOLUTEZ 16
#if defined(_MSC_VER)
#pragma pack(1)
diff --git a/src/p_mobj.c b/src/p_mobj.c
index a2f7a8c7e06ee2d8470d2ed4fde9fdd717418bf7..9065ac9d43ccd34378199ab28905e5abf1da6b62 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -11864,7 +11864,7 @@ void P_MovePlayerToStarpost(INT32 playernum)
mapthing_t *huntemeralds[MAXHUNTEMERALDS];
INT32 numhuntemeralds;
-fixed_t P_GetMobjSpawnHeight(const mobjtype_t mobjtype, const fixed_t x, const fixed_t y, const fixed_t dz, const fixed_t offset, const boolean flip, const fixed_t scale)
+fixed_t P_GetMobjSpawnHeight(const mobjtype_t mobjtype, const fixed_t x, const fixed_t y, const fixed_t dz, const fixed_t offset, const boolean flip, const fixed_t scale, const boolean absolutez)
{
const subsector_t *ss = R_PointInSubsector(x, y);
@@ -11874,9 +11874,9 @@ fixed_t P_GetMobjSpawnHeight(const mobjtype_t mobjtype, const fixed_t x, const f
// Establish height.
if (flip)
- return P_GetSectorCeilingZAt(ss->sector, x, y) - dz - FixedMul(scale, offset + mobjinfo[mobjtype].height);
+ return (absolutez ? dz : P_GetSectorCeilingZAt(ss->sector, x, y) - dz) - FixedMul(scale, offset + mobjinfo[mobjtype].height);
else
- return P_GetSectorFloorZAt(ss->sector, x, y) + dz + FixedMul(scale, offset);
+ return (absolutez ? dz : P_GetSectorFloorZAt(ss->sector, x, y) + dz) + FixedMul(scale, offset);
}
fixed_t P_GetMapThingSpawnHeight(const mobjtype_t mobjtype, const mapthing_t* mthing, const fixed_t x, const fixed_t y)
@@ -11884,6 +11884,7 @@ fixed_t P_GetMapThingSpawnHeight(const mobjtype_t mobjtype, const mapthing_t* mt
fixed_t dz = mthing->z << FRACBITS; // Base offset from the floor.
fixed_t offset = 0; // Specific scaling object offset.
boolean flip = (!!(mobjinfo[mobjtype].flags & MF_SPAWNCEILING) ^ !!(mthing->options & MTF_OBJECTFLIP));
+ boolean absolutez = !!(mthing->options & MTF_ABSOLUTEZ);
switch (mobjtype)
{
@@ -11939,7 +11940,7 @@ fixed_t P_GetMapThingSpawnHeight(const mobjtype_t mobjtype, const mapthing_t* mt
offset += mthing->args[0] ? 0 : 24*FRACUNIT;
}
- if (!(dz + offset)) // Snap to the surfaces when there's no offset set.
+ if (!(dz + offset) && !absolutez) // Snap to the surfaces when there's no offset set.
{
if (flip)
return ONCEILINGZ;
@@ -11947,7 +11948,7 @@ fixed_t P_GetMapThingSpawnHeight(const mobjtype_t mobjtype, const mapthing_t* mt
return ONFLOORZ;
}
- return P_GetMobjSpawnHeight(mobjtype, x, y, dz, offset, flip, mthing->scale);
+ return P_GetMobjSpawnHeight(mobjtype, x, y, dz, offset, flip, mthing->scale, absolutez);
}
static boolean P_SpawnNonMobjMapThing(mapthing_t *mthing)
@@ -13444,7 +13445,7 @@ void P_SpawnHoop(mapthing_t *mthing)
vector4_t v, res;
fixed_t x = mthing->x << FRACBITS;
fixed_t y = mthing->y << FRACBITS;
- fixed_t z = P_GetMobjSpawnHeight(MT_HOOP, x, y, mthing->z << FRACBITS, 0, false, mthing->scale);
+ fixed_t z = P_GetMobjSpawnHeight(MT_HOOP, x, y, mthing->z << FRACBITS, 0, false, mthing->scale, mthing->options & MTF_ABSOLUTEZ);
hoopcenter = P_SpawnMobj(x, y, z, MT_HOOPCENTER);
hoopcenter->spawnpoint = mthing;
@@ -13571,7 +13572,7 @@ static void P_SpawnItemRow(mapthing_t *mthing, mobjtype_t *itemtypes, UINT8 numi
itemtypes[r] = P_GetMobjtypeSubstitute(&dummything, itemtypes[r]);
}
}
- z = P_GetMobjSpawnHeight(itemtypes[0], x, y, z, 0, mthing->options & MTF_OBJECTFLIP, mthing->scale);
+ z = P_GetMobjSpawnHeight(itemtypes[0], x, y, z, 0, mthing->options & MTF_OBJECTFLIP, mthing->scale, mthing->options & MTF_ABSOLUTEZ);
for (r = 0; r < numitems; r++)
{
@@ -13630,7 +13631,7 @@ static void P_SpawnItemCircle(mapthing_t *mthing, mobjtype_t *itemtypes, UINT8 n
itemtypes[i] = P_GetMobjtypeSubstitute(&dummything, itemtypes[i]);
}
}
- z = P_GetMobjSpawnHeight(itemtypes[0], x, y, z, 0, false, mthing->scale);
+ z = P_GetMobjSpawnHeight(itemtypes[0], x, y, z, 0, false, mthing->scale, mthing->options & MTF_ABSOLUTEZ);
for (i = 0; i < numitems; i++)
{
diff --git a/src/p_mobj.h b/src/p_mobj.h
index 9c598f59e3ce155e66a3155c4c95bd7712f839c7..a980691beb8b296b4fd16415141e4f9e5f484af8 100644
--- a/src/p_mobj.h
+++ b/src/p_mobj.h
@@ -491,7 +491,7 @@ void P_MovePlayerToSpawn(INT32 playernum, mapthing_t *mthing);
void P_MovePlayerToStarpost(INT32 playernum);
void P_AfterPlayerSpawn(INT32 playernum);
-fixed_t P_GetMobjSpawnHeight(const mobjtype_t mobjtype, const fixed_t x, const fixed_t y, const fixed_t dz, const fixed_t offset, const boolean flip, const fixed_t scale);
+fixed_t P_GetMobjSpawnHeight(const mobjtype_t mobjtype, const fixed_t x, const fixed_t y, const fixed_t dz, const fixed_t offset, const boolean flip, const fixed_t scale, const boolean absolutez);
fixed_t P_GetMapThingSpawnHeight(const mobjtype_t mobjtype, const mapthing_t* mthing, const fixed_t x, const fixed_t y);
mobj_t *P_SpawnMapThing(mapthing_t *mthing);
diff --git a/src/p_setup.c b/src/p_setup.c
index 77f5370dd0aa45afb97507098d1394baaf5c4fe3..e7d86cf1606197b19d5205f728acc0fd55a96d8a 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -2033,6 +2033,8 @@ static void ParseTextmapThingParameter(UINT32 i, const char *param, const char *
// Flags
else if (fastcmp(param, "flip") && fastcmp("true", val))
mapthings[i].options |= MTF_OBJECTFLIP;
+ else if (fastcmp(param, "absolutez") && fastcmp("true", val))
+ mapthings[i].options |= MTF_ABSOLUTEZ;
else if (fastncmp(param, "stringarg", 9) && strlen(param) > 9)
{
@@ -6781,7 +6783,6 @@ static void P_ConvertBinaryThingTypes(void)
break;
case 1704: //NiGHTS bumper
mapthings[i].pitch = 30 * (((mapthings[i].options & 15) + 9) % 12);
- mapthings[i].options &= ~0xF;
break;
case 1705: //Hoop
case 1713: //Hoop (Customizable)
@@ -6790,7 +6791,6 @@ static void P_ConvertBinaryThingTypes(void)
mapthings[i].angle = (mapthings[i].extrainfo == 1) ? oldangle - 90 : ((oldangle >> 8)*360)/256;
mapthings[i].pitch = (mapthings[i].extrainfo == 1) ? oldangle / 360 : ((oldangle & 255)*360)/256;
mapthings[i].args[0] = (mapthings[i].type == 1705) ? 96 : (mapthings[i].options & 0xF)*16 + 32;
- mapthings[i].options &= ~0xF;
mapthings[i].type = 1713;
break;
}
@@ -6818,6 +6818,9 @@ static void P_ConvertBinaryThingTypes(void)
default:
break;
}
+
+ // Clear binary thing height hacks, to prevent interfering with UDMF-only flags
+ mapthings[i].options &= 0xF;
}
}