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Create P_CeilingzAtPos function

This commit is contained in:
Snu 2020-09-30 07:56:57 +01:00
parent e593610862
commit ca88db00cd
2 changed files with 46 additions and 1 deletions
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1
src/p_local.h
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@ -424,6 +424,7 @@ void P_Initsecnode(void);
void P_RadiusAttack(mobj_t *spot, mobj_t *source, fixed_t damagedist, UINT8 damagetype, boolean sightcheck);
fixed_t P_FloorzAtPos(fixed_t x, fixed_t y, fixed_t z, fixed_t height);
fixed_t P_CeilingzAtPos(fixed_t x, fixed_t y, fixed_t z, fixed_t height);
boolean PIT_PushableMoved(mobj_t *thing);
boolean P_DoSpring(mobj_t *spring, mobj_t *object);

46
src/p_map.c
View File

@ -4953,7 +4953,7 @@ void P_MapEnd(void)
}
// P_FloorzAtPos
// Returns the floorz of the XYZ position // TODO: Need ceilingpos function too
// Returns the floorz of the XYZ position
// Tails 05-26-2003
fixed_t P_FloorzAtPos(fixed_t x, fixed_t y, fixed_t z, fixed_t height)
{
@ -4997,3 +4997,47 @@ fixed_t P_FloorzAtPos(fixed_t x, fixed_t y, fixed_t z, fixed_t height)
return floorz;
}
// P_CeilingZAtPos
// Returns the ceilinz of the XYZ position
fixed_t P_CeilingzAtPos(fixed_t x, fixed_t y, fixed_t z, fixed_t height)
{
sector_t *sec = R_PointInSubsector(x, y)->sector;
fixed_t ceilingz = P_GetSectorCeilingZAt(sec, x, y);
if (sec->ffloors)
{
ffloor_t *rover;
fixed_t delta1, delta2, thingtop = z + height;
for (rover = sec->ffloors; rover; rover = rover->next)
{
fixed_t topheight, bottomheight;
if (!(rover->flags & FF_EXISTS))
continue;
if ((!(rover->flags & FF_SOLID || rover->flags & FF_QUICKSAND) || (rover->flags & FF_SWIMMABLE)))
continue;
topheight = P_GetFFloorTopZAt (rover, x, y);
bottomheight = P_GetFFloorBottomZAt(rover, x, y);
if (rover->flags & FF_QUICKSAND)
{
if (z < topheight && bottomheight < thingtop)
{
if (ceilingz < z)
ceilingz = z;
}
continue;
}
delta1 = z - (bottomheight + ((topheight - bottomheight)/2));
delta2 = thingtop - (bottomheight + ((topheight - bottomheight)/2));
if (bottomheight > ceilingz && abs(delta1) < abs(delta2))
ceilingz = bottomheight;
}
}
return ceilingz;
}