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Added safeguard to MapSet.NearestLinedefRange if selectionmap is null. Might fix #529.

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biwa 2021-02-20 13:11:03 +01:00 committed by spherallic
parent 0eee76393b
commit c27bf325ad
1 changed files with 3 additions and 0 deletions
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3
Source/Core/Map/MapSet.cs
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@ -3387,6 +3387,9 @@ namespace CodeImp.DoomBuilder.Map
/// <summary>This finds the line closest to the specified position.</summary>
public static Linedef NearestLinedefRange(BlockMap<BlockEntry> selectionmap, Vector2D pos, float maxrange) //mxd
{
if (selectionmap == null)
return null;
Linedef closest = null;
float distance = float.MaxValue;
float maxrangesq = maxrange * maxrange;