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fixed crash in Make Sector mode on empty map

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codeimp 2008-10-28 10:38:31 +00:00
parent c184901b5e
commit d514c8837a
1 changed files with 27 additions and 24 deletions
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51
Source/BuilderModes/ClassicModes/MakeSectorMode.cs
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@ -144,39 +144,42 @@ namespace CodeImp.DoomBuilder.BuilderModes
{
// Highlighting from a new sidedef?
Linedef nl = General.Map.Map.NearestLinedef(mousemappos);
float side = nl.SideOfLine(mousemappos);
newnearest = new LinedefSide(nl, (side <= 0.0f));
if(newnearest != nearestside)
if(nl != null)
{
// Only change when buttons are not pressed
if(!buttonspressed || (editside == newnearest))
float side = nl.SideOfLine(mousemappos);
newnearest = new LinedefSide(nl, (side <= 0.0f));
if(newnearest != nearestside)
{
// Find new sector
General.Interface.SetCursor(Cursors.AppStarting);
nearestside = newnearest;
allsides = Tools.FindPotentialSectorAt(mousemappos);
if(allsides != null)
// Only change when buttons are not pressed
if(!buttonspressed || (editside == newnearest))
{
alllines = new List<Linedef>(allsides.Count);
foreach(LinedefSide sd in allsides) alllines.Add(sd.Line);
// Find new sector
General.Interface.SetCursor(Cursors.AppStarting);
nearestside = newnearest;
allsides = Tools.FindPotentialSectorAt(mousemappos);
if(allsides != null)
{
alllines = new List<Linedef>(allsides.Count);
foreach(LinedefSide sd in allsides) alllines.Add(sd.Line);
}
else
{
alllines = null;
}
General.Interface.SetCursor(Cursors.Default);
}
else
{
// Don't highlight this one
nearestside = null;
allsides = null;
alllines = null;
}
General.Interface.SetCursor(Cursors.Default);
}
else
{
// Don't highlight this one
nearestside = null;
allsides = null;
alllines = null;
}
// Redraw overlay
DrawGeometry();
renderer.Present();
// Redraw overlay
DrawGeometry();
renderer.Present();
}
}
}
else