public override bool Equals(object other)
{
if (this == other)
{
return(true);
}
Class811.Class813 class813 = other as Class811.Class813;
if (class813 == null || this.double_0 != class813.double_0)
{
return(false);
}
return(this.double_1 == class813.double_1);
}
private static double[] smethod_13(
Polyline2D[] borders,
Point2D start,
Vector2D direction,
bool fillInterior)
{
Point2D point2D1 = new Point2D();
double num1 = start.X * (start.Y + direction.Y) - start.Y * (start.X + direction.X);
List <Class811.Class812> class812List1 = new List <Class811.Class812>();
bool flag1 = false;
foreach (Polyline2D border in borders)
{
bool flag2 = false;
bool flag3 = false;
Point2D?nullable1 = new Point2D?();
bool flag4 = false;
bool flag5 = false;
Point2D?nullable2 = new Point2D?();
bool flag6 = false;
Point2D?nullable3 = new Point2D?();
if (border.Count > 0)
{
Point2D point2D2 = border[0];
}
IList <Point2D> point2DList;
if (border.Closed && border.Count > 2)
{
point2DList = (IList <Point2D>) new List <Point2D>((IEnumerable <Point2D>)border);
point2DList.Add(border[0]);
}
else
{
point2DList = (IList <Point2D>)border;
}
foreach (Point2D location2 in (IEnumerable <Point2D>)point2DList)
{
if (nullable3.HasValue)
{
if (nullable3.Value == location2)
{
continue;
}
}
else
{
nullable3 = new Point2D?(Point2D.Zero);
}
double num2 = num1 - location2.X * direction.Y + location2.Y * direction.X;
if (num2 == 0.0)
{
flag3 = true;
if (flag2)
{
if (!nullable1.HasValue)
{
nullable1 = new Point2D?(location2);
flag4 = flag6;
}
}
else
{
nullable2 = nullable2.HasValue ? new Point2D?(location2) : new Point2D?(location2);
}
}
else
{
bool flag7 = num2 > 0.0;
if (flag2)
{
if (flag3)
{
if (flag7 ^ flag4)
{
Point2D?nullable4 = nullable1;
Point2D?nullable5 = nullable3;
if ((nullable4.HasValue != nullable5.HasValue ? 1 : (!nullable4.HasValue ? 0 : (nullable4.GetValueOrDefault() != nullable5.GetValueOrDefault() ? 1 : 0))) != 0)
{
Class811.Class813 class813 = new Class811.Class813(Class811.smethod_16(nullable1.Value, start, direction), Class811.smethod_16(nullable3.Value, start, direction));
Point2D v = start + class813.LowerCut * direction;
if (!fillInterior || !Class811.smethod_14(v, borders, border))
{
class812List1.Add((Class811.Class812)class813);
flag1 = true;
}
}
else
{
Class811.Class812 class812 = (Class811.Class812) new Class811.Class814(Class811.smethod_16(nullable3.Value, start, direction));
Point2D v = start + class812.LowerCut * direction;
if (!fillInterior || !Class811.smethod_14(v, borders, border))
{
class812List1.Add(class812);
}
}
}
}
else if (flag7 ^ flag6)
{
Class811.Class812 class812 = (Class811.Class812) new Class811.Class814(Class811.smethod_15(nullable3.Value, location2, start, direction));
Point2D v = start + class812.LowerCut * direction;
if (!fillInterior || !Class811.smethod_14(v, borders, border))
{
class812List1.Add(class812);
}
}
}
else
{
flag5 = flag7;
flag2 = true;
}
flag3 = false;
flag6 = flag7;
nullable1 = new Point2D?();
}
nullable3 = new Point2D?(location2);
}
if (flag2 && flag3 && flag4 ^ flag5)
{
Point2D?nullable4 = nullable1;
Point2D?nullable5 = nullable2;
if ((nullable4.HasValue != nullable5.HasValue ? 1 : (!nullable4.HasValue ? 0 : (nullable4.GetValueOrDefault() != nullable5.GetValueOrDefault() ? 1 : 0))) != 0)
{
Class811.Class813 class813 = new Class811.Class813(Class811.smethod_16(nullable1.Value, start, direction), Class811.smethod_16(nullable2.Value, start, direction));
Point2D v = start + class813.LowerCut * direction;
if (!fillInterior || !Class811.smethod_14(v, borders, border))
{
class812List1.Add((Class811.Class812)class813);
flag1 = true;
}
}
else
{
Class811.Class812 class812 = (Class811.Class812) new Class811.Class814(Class811.smethod_16(nullable2.Value, start, direction));
Point2D v = start + class812.LowerCut * direction;
if (!fillInterior || !Class811.smethod_14(v, borders, border))
{
class812List1.Add(class812);
}
}
}
}
if (class812List1.Count <= 0)
{
return((double[])null);
}
class812List1.Sort();
if (flag1)
{
List <Class811.Class812> class812List2 = new List <Class811.Class812>(class812List1.Count);
bool flag2 = false;
bool flag3 = false;
double cut1 = 0.0;
foreach (Class811.Class812 class812 in class812List1)
{
if (flag2)
{
if (class812.LowerCut > cut1)
{
if (flag3)
{
class812List2.Add((Class811.Class812) new Class811.Class814(cut1));
}
flag2 = false;
}
else
{
flag3 = !flag3;
if (class812.UpperCut > cut1)
{
cut1 = class812.UpperCut;
continue;
}
continue;
}
}
if (class812.IsInterval)
{
flag2 = true;
cut1 = class812.UpperCut;
if (class812List2.Count % 2 == 1)
{
class812List2.Add(class812);
flag3 = false;
}
else
{
flag3 = true;
}
}
else
{
class812List2.Add(class812);
}
}
class812List1 = class812List2;
}
Class811.Class812 class812_1 = (Class811.Class812)null;
List <Class811.Class812> class812List3 = new List <Class811.Class812>();
foreach (Class811.Class812 class812_2 in class812List1)
{
if (class812_2.Equals((object)class812_1))
{
class812_1 = (Class811.Class812)null;
class812List3.RemoveAt(class812List3.Count - 1);
}
else
{
class812List3.Add(class812_2);
class812_1 = class812_2;
}
}
if (class812List3.Count % 2 != 0)
{
Console.Error.WriteLine("Error");
}
List <Class811.Class812> class812List4 = class812List3;
double[] numArray = new double[class812List4.Count];
int num3 = 0;
foreach (Class811.Class812 class812_2 in class812List4)
{
numArray[num3++] = class812_2.LowerCut;
}
return(numArray);
}