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Fixed some problems with determining which sector a thing is in

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biwa 2021-04-10 11:31:36 +02:00 committed by spherallic
parent 3a4695ba92
commit 8648227423
1 changed files with 11 additions and 3 deletions
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14
Source/Core/Map/Sector.cs
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@ -542,7 +542,8 @@ namespace CodeImp.DoomBuilder.Map
uint c = 0;
Vector2D v1, v2;
bool selfreferencing = true;
// Go for all sidedefs
foreach(Sidedef sd in sidedefs)
{
@ -553,6 +554,10 @@ namespace CodeImp.DoomBuilder.Map
//mxd. On top of a vertex?
if(p == v1 || p == v2) return countontopastrue;
// If both sidedefs of any one line aren't referencing the same sector, then it's not a self-referencing sector
if (sd.Other == null || (sd.Other != null && sd.Other.Sector != this))
selfreferencing = false;
// Check for intersection
if(v1.y != v2.y //mxd. If line is not horizontal...
&& p.y > (v1.y < v2.y ? v1.y : v2.y) //mxd. ...And test point y intersects with the line y bounds...
@ -562,8 +567,11 @@ namespace CodeImp.DoomBuilder.Map
c++; //mxd. ...Count the line as crossed
}
// Inside this polygon when we crossed odd number of polygon lines
return (c % 2 != 0);
// Inside this polygon when we crossed odd number of polygon lines (for non-self-referencing sectors)
if (!selfreferencing)
return (c % 2 != 0);
else
return (c % 2 == 0);
}
// This creates a bounding box rectangle