private Vertices CreateSimplePolygon(TSVector2 entrance, TSVector2 last)
{
bool flag = false;
bool flag2 = false;
Vertices vertices = new Vertices(32);
Vertices vertices2 = new Vertices(32);
Vertices vertices3 = new Vertices(32);
TSVector2 tSVector = TSVector2.zero;
bool flag3 = entrance == TSVector2.zero || !this.InBounds(ref entrance);
if (flag3)
{
flag = this.SearchHullEntrance(out entrance);
bool flag4 = flag;
if (flag4)
{
tSVector = new TSVector2(entrance.x - 1f, entrance.y);
}
}
else
{
bool flag5 = this.IsSolid(ref entrance);
if (flag5)
{
bool flag6 = this.IsNearPixel(ref entrance, ref last);
if (flag6)
{
tSVector = last;
flag = true;
}
else
{
TSVector2 tSVector2;
bool flag7 = this.SearchNearPixels(false, ref entrance, out tSVector2);
if (flag7)
{
tSVector = tSVector2;
flag = true;
}
else
{
flag = false;
}
}
}
}
bool flag8 = flag;
if (flag8)
{
vertices.Add(entrance);
vertices2.Add(entrance);
TSVector2 tSVector3 = entrance;
TSVector2 item;
while (true)
{
bool flag9 = this.SearchForOutstandingVertex(vertices2, out item);
if (flag9)
{
bool flag10 = flag2;
if (flag10)
{
break;
}
vertices.Add(item);
vertices2.RemoveRange(0, vertices2.IndexOf(item));
}
last = tSVector;
tSVector = tSVector3;
bool nextHullPoint = this.GetNextHullPoint(ref last, ref tSVector, out tSVector3);
if (!nextHullPoint)
{
goto IL_161;
}
vertices2.Add(tSVector3);
bool flag11 = tSVector3 == entrance && !flag2;
if (flag11)
{
flag2 = true;
vertices3.AddRange(vertices2);
bool flag12 = vertices3.Contains(entrance);
if (flag12)
{
vertices3.Remove(entrance);
}
}
}
bool flag13 = vertices3.Contains(item);
if (flag13)
{
vertices.Add(item);
}
IL_161 :;
}
return(vertices);
}