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Changed the way sector bounding box is calculated. This fixes major slowdowns when a sector with invalid geometry (e.g. without triangulation) is highlighted in Classic modes and a crash in Visual mode when such sector is rendered.

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MaxED 2013-08-29 12:07:54 +00:00
parent 6f23311167
commit c6170f644b
1 changed files with 22 additions and 9 deletions
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31
Source/Core/Map/Sector.cs
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@ -472,20 +472,33 @@ namespace CodeImp.DoomBuilder.Map
// This requires the sector triangulation to be up-to-date!
private RectangleF CreateBBox()
{
if(sidedefs.Count == 0) return new RectangleF(); //mxd
// Setup
float left = float.MaxValue;
float top = float.MaxValue;
float right = float.MinValue;
float bottom = float.MinValue;
// Go for vertices
foreach(Vector2D v in triangles.Vertices)
{
// Update rect
if(v.x < left) left = v.x;
if(v.y < top) top = v.y;
if(v.x > right) right = v.x;
if(v.y > bottom) bottom = v.y;
List<Vertex> processed = new List<Vertex>(); //mxd
//mxd. This way bbox will be created even if triangulation failed (sector with 2 or less sidedefs and 2 vertices)
foreach (Sidedef s in sidedefs) {
//start...
if (!processed.Contains(s.Line.Start)) {
if (s.Line.Start.Position.x < left) left = s.Line.Start.Position.x;
else if (s.Line.Start.Position.x > right) right = s.Line.Start.Position.x;
if (s.Line.Start.Position.y < top) top = s.Line.Start.Position.y;
else if (s.Line.Start.Position.y > bottom) bottom = s.Line.Start.Position.y;
}
//end...
if(!processed.Contains(s.Line.Start)) {
if(s.Line.End.Position.x < left) left = s.Line.End.Position.x;
else if(s.Line.End.Position.x > right) right = s.Line.End.Position.x;
if(s.Line.End.Position.y < top) top = s.Line.End.Position.y;
else if(s.Line.End.Position.y > bottom) bottom = s.Line.End.Position.y;
}
}
// Return rectangle