private static bool smethod_4(Class722 A_0, Class722 A_1)
{
if ((A_0.method_19() < 3) || (A_1.method_19() < 3))
{
return(false);
}
Class887 class2 = new Class887(A_0, A_1);
for (int i = 0; i < A_0.method_19(); i++)
{
class2.method_3(A_0.method_20(i).method_2());
class2.method_11(i);
class2.method_13(A_0.method_10(i + 1));
Class448 class3 = smethod_10(A_0, i);
for (int j = 0; j < A_1.method_19(); j++)
{
class2.method_15(j);
smethod_5(class2, class3);
}
}
if (class2.method_8())
{
smethod_12(class2, true);
smethod_12(class2, false);
}
return(class2.method_8());
}
private static void smethod_20(Class722 A_0, Class722 A_1, Class444 A_2)
{
bool flag;
int num = A_2.method_2();
int num2 = A_2.method_3();
int num3 = smethod_22(A_0, num, false);
int num4 = smethod_22(A_0, num, true);
int num5 = smethod_22(A_1, num2, false);
int num6 = smethod_22(A_1, num2, true);
Class448 class2 = smethod_23(A_0, num, num4);
Class448 class3 = smethod_23(A_1, num2, num5);
PointF tf = smethod_24(class2);
PointF tf2 = smethod_24(class3);
Class448 class4 = new Class448(A_0.method_20(num).method_2(), A_1.method_20(num2).method_2());
Class448 class5 = new Class448(tf, tf2);
if (flag = Class448.smethod_8(class4, class5))
{
class2 = smethod_23(A_0, num, num3);
class3 = smethod_23(A_1, num2, num6);
tf = smethod_24(class2);
tf2 = smethod_24(class3);
}
if (tf != PointF.Empty)
{
A_0.method_6(flag ? num : num4, new Class886(tf));
}
if (tf2 != PointF.Empty)
{
A_1.method_6(flag ? num6 : num2, new Class886(tf2));
}
num4 = smethod_22(A_0, num, true);
num6 = smethod_22(A_1, num2, true);
A_0.method_3(num4, A_1.method_9(num6));
}
internal static bool smethod_6(Class448 A_0, Class447 A_1, PointF[] A_2, bool A_3)
{
if (!Class447.smethod_2(A_0, A_1, A_2, A_3))
{
return(false);
}
return(A_0.method_17(A_2[0]));
}
internal static bool smethod_7(Class448 A_0, Class448 A_1, PointF[] A_2)
{
if (!Class447.smethod_3(A_0, A_1, A_2))
{
return(false);
}
return(A_0.method_17(A_2[0]) && A_1.method_17(A_2[0]));
}
private static bool smethod_7(Class448 A_0, Class887 A_1, bool A_2)
{
if (A_0.method_17(A_2 ? A_1.method_4() : A_1.method_2()))
{
smethod_8(A_0, A_1, A_2);
return(true);
}
return(false);
}
private static void smethod_8(Class448 A_0, Class887 A_1, bool A_2)
{
A_1.method_9(true);
Class886 class2 = A_2 ? A_1.method_1().method_20(A_1.method_14()) : A_1.method_0().method_20(A_1.method_10());
class2.method_1(VertexType.Intersection);
if (!smethod_9(A_0, A_1, A_2, true, class2) && !smethod_9(A_0, A_1, A_2, false, class2))
{
smethod_11(A_2 ? A_1.method_18(A_1.method_10()) : A_1.method_19(A_1.method_14()), A_2 ? A_1.method_20(A_1.method_10()) : A_1.method_21(A_1.method_14()), A_2 ? A_1.method_2() : A_1.method_4(), A_2 ? A_1.method_4() : A_1.method_2());
}
}
private static bool smethod_9(Class448 A_0, Class887 A_1, bool A_2, bool A_3, Class886 A_4)
{
if (spr.ᜀ(A_3 ? A_0.method_15() : A_0.method_16(), A_4.method_2()))
{
Class886 class2 = A_2 ? A_1.method_0().method_20(A_3 ? A_1.method_10() : A_1.method_12()) : A_1.method_1().method_20(A_3 ? A_1.method_14() : A_1.method_16());
class2.method_1(VertexType.Intersection);
class2.method_3(A_4.method_2());
return(true);
}
return(false);
}
private static bool smethod_6(Class448 A_0, Class887 A_1, bool A_2, int A_3)
{
if (A_0.method_17(A_2 ? A_1.method_4() : A_1.method_2()))
{
(A_2 ? A_1.method_0().method_20(A_3) : A_1.method_1().method_20(A_3)).method_1(VertexType.Intersection);
smethod_8(A_2 ? A_1.method_18(A_3) : A_1.method_19(A_3), A_2 ? A_1.method_20(A_3) : A_1.method_21(A_3), A_2 ? A_1.method_2() : A_1.method_4(), A_2 ? A_1.method_4() : A_1.method_2());
A_1.method_9(true);
return(true);
}
return(false);
}
private static bool smethod_2(Class448 A_0, int A_1, Class448[] A_2)
{
PointF[] tfArray2 = new PointF[] { PointF.Empty };
for (int i = 0; i < A_2.Length; i++)
{
if (((i != (A_1 - 1)) && (i != A_1)) && Class448.smethod_5(A_2[i], A_0, tfArray2, true))
{
return(true);
}
}
return(false);
}
private Class448[] method_9(int A_0, int A_1)
{
int num = this.method_10(A_0, A_1) + 1;
Class448[] classArray = new Class448[num];
for (int i = 0; i < num; i++)
{
int num3 = this.method_3(A_0 + i);
int num4 = this.method_3((A_0 + i) + 1);
classArray[i] = new Class448(this.class722_0.method_20(num3).method_2(), this.class722_0.method_20(num4).method_2());
}
return(classArray);
}
private static bool smethod_6(Class448 A_0, Class448 A_1, Class887 A_2)
{
bool flag = false;
if (smethod_7(A_0, A_2, true))
{
flag = true;
}
if (smethod_7(A_1, A_2, false))
{
flag = true;
}
return(flag);
}
private static void smethod_4(Class887 A_0, Class448 A_1, int A_2, int A_3)
{
PointF[] tfArray = new PointF[1];
A_0.method_5(A_0.method_1().method_20(A_3).method_2());
Class448 class2 = smethod_7(A_0.method_1(), A_3, A_0.method_4());
if (!smethod_5(A_1, class2, A_0, A_2, A_3))
{
bool flag = Class448.smethod_5(A_1, class2, tfArray, true);
A_0.method_7(tfArray[0]);
if ((flag && !A_0.method_6().Equals(class2.method_16())) && !A_0.method_6().Equals(A_1.method_16()))
{
smethod_8(A_0.method_18(A_2), A_0.method_20(A_2), A_0.method_2(), tfArray[0]);
smethod_8(A_0.method_19(A_3), A_0.method_21(A_3), A_0.method_4(), tfArray[0]);
A_0.method_9(true);
}
}
}
private static void smethod_5(Class887 A_0, Class448 A_1)
{
A_0.method_5(A_0.method_1().method_20(A_0.method_14()).method_2());
A_0.method_17(A_0.method_1().method_10(A_0.method_14() + 1));
Class448 class2 = smethod_10(A_0.method_1(), A_0.method_14());
if (!smethod_6(A_1, class2, A_0))
{
PointF[] tfArray = new PointF[1];
bool flag = Class448.smethod_5(A_1, class2, tfArray, true);
A_0.method_7(tfArray[0]);
if ((flag && !spr.ᜀ(A_0.method_6(), class2.method_16())) && !spr.ᜀ(A_0.method_6(), A_1.method_16()))
{
smethod_11(A_0.method_18(A_0.method_10()), A_0.method_20(A_0.method_10()), A_0.method_2(), tfArray[0]);
smethod_11(A_0.method_19(A_0.method_14()), A_0.method_21(A_0.method_14()), A_0.method_4(), tfArray[0]);
A_0.method_9(true);
}
}
}
private void method_13(DxfVersion fileVersion)
{
if (this.bool_2 || this.dwgVersion_0 < DwgVersion.Dwg1021 || (fileVersion <= DxfVersion.Dxf14 || fileVersion >= DxfVersion.Dxf21))
{
return;
}
if (this.stream_1 != null)
{
throw new Exception("String stream is expected to be null.");
}
if (this.uint_0 <= 0U)
{
return;
}
this.stream_1 = (Stream) new PagedMemoryStream(1024L, 1024);
Class448 class448 = new Class448((DwgReader)null, this.stream_0);
class448.imethod_5(this.long_0 + (long)this.uint_0);
int num = (int)class448.imethod_21((PagedMemoryStream)this.stream_1);
}
private static bool smethod_5(Class448 A_0, Class448 A_1, Class887 A_2, int A_3, int A_4)
{
return(smethod_6(A_0, A_2, true, A_3) || smethod_6(A_1, A_2, false, A_4));
}
internal static bool smethod_8(Class448 A_0, Class448 A_1)
{
PointF[] tfArray = new PointF[] { PointF.Empty };
return(smethod_7(A_0, A_1, tfArray));
}
public abstract void Visit(Class448 c);
public override void Visit(Class448 c) { }
private static PointF smethod_24(Class448 A_0)
{
return(A_0.method_18(0.002f));
}