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- fixed: P_CheckMissileSpawn's setup for P_TryMove must be done in a way that allows detecting portal transitions.

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By setting the position before the call any portal lying between the actual spawn point and the check position would be skipped.
This commit is contained in:
Christoph Oelckers 2017-06-07 22:40:54 +02:00
parent 78061f1cf7
commit 55df3a91ec
1 changed files with 7 additions and 2 deletions
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9
src/p_mobj.cpp
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@ -6718,6 +6718,8 @@ bool P_CheckMissileSpawn (AActor* th, double maxdist)
th->tics = 1;
}
DVector3 newpos = th->Pos();
if (maxdist > 0)
{
// move a little forward so an angle can be computed if it immediately explodes
@ -6731,7 +6733,7 @@ bool P_CheckMissileSpawn (AActor* th, double maxdist)
advance *= 0.5f;
}
while (advance.XY().LengthSquared() >= maxsquared);
th->SetXYZ(th->Pos() + advance);
newpos += advance;
}
FCheckPosition tm(!!(th->flags2 & MF2_RIP));
@ -6755,7 +6757,9 @@ bool P_CheckMissileSpawn (AActor* th, double maxdist)
bool MBFGrenade = (!(th->flags & MF_MISSILE) || (th->BounceFlags & BOUNCE_MBF));
// killough 3/15/98: no dropoff (really = don't care for missiles)
if (!(P_TryMove (th, th->Pos(), false, NULL, tm, true)))
auto oldf2 = th->flags2;
th->flags2 &= ~MF2_MCROSS; // The following check is not supposed to activate missile triggers.
if (!(P_TryMove (th, newpos, false, NULL, tm, true)))
{
// [RH] Don't explode ripping missiles that spawn inside something
if (th->BlockingMobj == NULL || !(th->flags2 & MF2_RIP) || (th->BlockingMobj->flags5 & MF5_DONTRIP))
@ -6778,6 +6782,7 @@ bool P_CheckMissileSpawn (AActor* th, double maxdist)
return false;
}
}
th->flags2 = oldf2;
th->ClearInterpolation();
return true;
}