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- MBF21: implemented new line flags.

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While 'block players' was just a simple remap, 'block land monsters' required quite a bit of work...
This also fixes the bug that BLOCK_FLOATERS was never checked for sliding against a wall.
This commit is contained in:
Christoph Oelckers 2021-06-28 20:17:08 +02:00
commit c4ed0cefde
15 changed files with 65 additions and 35 deletions
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27
src/playsim/p_map.cpp
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@ -849,12 +849,6 @@ bool PIT_CheckLine(FMultiBlockLinesIterator &mit, FMultiBlockLinesIterator::Chec
// MBF bouncers are treated as missiles here.
bool Projectile = (tm.thing->flags & MF_MISSILE || tm.thing->BounceFlags & BOUNCE_MBF);
// MBF considers that friendly monsters are not blocked by monster-blocking lines.
// This is added here as a compatibility option. Note that monsters that are dehacked
// into being friendly with the MBF flag automatically gain MF3_NOBLOCKMONST, so this
// just optionally generalizes the behavior to other friendly monsters.
bool NotBlocked = ((tm.thing->flags3 & MF3_NOBLOCKMONST)
|| ((tm.thing->Level->i_compatflags & COMPATF_NOBLOCKFRIENDS) && (tm.thing->flags & MF_FRIENDLY)));
uint32_t ProjectileBlocking = ML_BLOCKEVERYTHING | ML_BLOCKPROJECTILE;
if ( tm.thing->flags8 & MF8_BLOCKASPLAYER ) ProjectileBlocking |= ML_BLOCK_PLAYERS | ML_BLOCKING;
@ -865,11 +859,8 @@ bool PIT_CheckLine(FMultiBlockLinesIterator &mit, FMultiBlockLinesIterator::Chec
{
rail = true;
}
else if ((ld->flags & (ML_BLOCKING | ML_BLOCKEVERYTHING)) || // explicitly blocking everything
(!(NotBlocked) && (ld->flags & ML_BLOCKMONSTERS)) || // block monsters only
(((tm.thing->player != NULL) || (tm.thing->flags8 & MF8_BLOCKASPLAYER)) && (ld->flags & ML_BLOCK_PLAYERS)) || // block players
((Projectile) && (ld->flags & ML_BLOCKPROJECTILE)) || // block projectiles
((tm.thing->flags & MF_FLOAT) && (ld->flags & ML_BLOCK_FLOATERS))) // block floaters
else if (P_IsBlockedByLine(tm.thing, ld) ||
((Projectile) && (ld->flags & ML_BLOCKPROJECTILE)))
{
if (cres.portalflags & FFCF_NOFLOOR)
{
@ -3002,19 +2993,7 @@ void FSlide::SlideTraverse(const DVector2 &start, const DVector2 &end)
}
goto isblocking;
}
if (li->flags & (ML_BLOCKING | ML_BLOCKEVERYTHING))
{
goto isblocking;
}
if (li->flags & ML_BLOCK_PLAYERS && ((slidemo->player != NULL) || (slidemo->flags8 & MF8_BLOCKASPLAYER)))
{
goto isblocking;
}
if (li->flags & ML_BLOCKMONSTERS && !((slidemo->flags3 & MF3_NOBLOCKMONST)
|| ((slidemo->Level->i_compatflags & COMPATF_NOBLOCKFRIENDS) && (slidemo->flags & MF_FRIENDLY))))
{
goto isblocking;
}
if (P_IsBlockedByLine(slidemo, li)) goto isblocking;
// set openrange, opentop, openbottom
P_LineOpening(open, slidemo, li, it.InterceptPoint(in));