zdoom/qzdoom
0
0
Fork 0
mirror of https://github.com/ZDoom/qzdoom.git synced 2024-11-24 21:11:39 +00:00
Code Issues Projects Releases Packages Wiki Activity

- fixed: Sight checks through portals must disable all early-outs.

Browse source 
These can also be triggered from lines outside the actually valid range because the checks are done before the lines get ordered by distance.
This commit is contained in:
Christoph Oelckers 2017-02-24 19:00:10 +01:00
parent c6a5e74c75
commit 555f339924
2 changed files with 48 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
src/events.h
View file

@ -158,6 +158,7 @@ public:
bool IsStatic() override { return false; }
};
extern DStaticEventHandler* E_FirstEventHandler;
extern DStaticEventHandler* E_LastEventHandler;
// we cannot call this DEvent because in ZScript, 'event' is a keyword
class DBaseEvent : public DObject

77
src/p_sight.cpp
View file

@ -107,6 +107,7 @@ class SightCheck
bool P_SightCheckLine (line_t *ld);
int P_SightBlockLinesIterator (int x, int y);
bool P_SightTraverseIntercepts ();
bool LineBlocksSight(line_t *ld);
public:
bool P_SightPathTraverse ();
@ -211,7 +212,14 @@ bool SightCheck::PTR_SightTraverse (intercept_t *in)
double trX = Trace.x + Trace.dx * in->frac;
double trY = Trace.y + Trace.dy * in->frac;
P_SightOpening (open, li, trX, trY);
P_SightOpening(open, li, trX, trY);
if (LineBlocksSight(in->d.line))
{
// This may not skip P_SightOpening, but only reduce the open range to 0.
open.range = 0;
open.bottom = open.top;
}
FLinePortal *lport = li->getPortal();
@ -362,6 +370,42 @@ bool SightCheck::PTR_SightTraverse (intercept_t *in)
}
// performs trivial visibility checks.
bool SightCheck::LineBlocksSight(line_t *ld)
{
// try to early out the check
if (!ld->backsector || !(ld->flags & ML_TWOSIDED) || (ld->flags & ML_BLOCKSIGHT))
return true; // stop checking
// [RH] don't see past block everything lines
if (ld->flags & ML_BLOCKEVERYTHING)
{
if (!(Flags & SF_SEEPASTBLOCKEVERYTHING))
{
return true;
}
// Pretend the other side is invisible if this is not an impact line
// that runs a script on the current map. Used to prevent monsters
// from trying to attack through a block everything line unless
// there's a chance their attack will make it nonblocking.
if (!(Flags & SF_SEEPASTSHOOTABLELINES))
{
if (!(ld->activation & SPAC_Impact))
{
return true;
}
if (ld->special != ACS_Execute && ld->special != ACS_ExecuteAlways)
{
return true;
}
if (ld->args[1] != 0 && ld->args[1] != level.levelnum)
{
return true;
}
}
}
return false;
}
/*
==================
@ -392,36 +436,9 @@ bool SightCheck::P_SightCheckLine (line_t *ld)
return true; // line isn't crossed
}
// try to early out the check
if (!ld->backsector || !(ld->flags & ML_TWOSIDED) || (ld->flags & ML_BLOCKSIGHT))
return false; // stop checking
// [RH] don't see past block everything lines
if (ld->flags & ML_BLOCKEVERYTHING)
if (!portalfound) // when portals come into play, the quick-outs here may not be performed
{
if (!(Flags & SF_SEEPASTBLOCKEVERYTHING))
{
return false;
}
// Pretend the other side is invisible if this is not an impact line
// that runs a script on the current map. Used to prevent monsters
// from trying to attack through a block everything line unless
// there's a chance their attack will make it nonblocking.
if (!(Flags & SF_SEEPASTSHOOTABLELINES))
{
if (!(ld->activation & SPAC_Impact))
{
return false;
}
if (ld->special != ACS_Execute && ld->special != ACS_ExecuteAlways)
{
return false;
}
if (ld->args[1] != 0 && ld->args[1] != level.levelnum)
{
return false;
}
}
if (LineBlocksSight(ld)) return false;
}
sightcounts[3]++;