private void RemoveTerrainTriangle(MyNavigationTriangle tri)
{
MyWingedEdgeMesh.FaceVertexEnumerator vertexEnumerator = tri.GetVertexEnumerator();
vertexEnumerator.MoveNext();
Vector3 current = vertexEnumerator.Current;
vertexEnumerator.MoveNext();
Vector3 vector2 = vertexEnumerator.Current;
vertexEnumerator.MoveNext();
Vector3 vector3 = vertexEnumerator.Current;
int edgeIndex = tri.GetEdgeIndex(0);
int num2 = tri.GetEdgeIndex(1);
int num3 = tri.GetEdgeIndex(2);
int num4 = edgeIndex;
if (!this.m_connectionHelper.TryRemoveOuterEdge(ref current, ref vector2, ref num4) && (base.Mesh.GetEdge(edgeIndex).OtherFace(tri.Index) != -1))
{
this.m_connectionHelper.AddOuterEdgeIndex(ref vector2, ref current, edgeIndex);
}
num4 = num2;
if (!this.m_connectionHelper.TryRemoveOuterEdge(ref vector2, ref vector3, ref num4) && (base.Mesh.GetEdge(num2).OtherFace(tri.Index) != -1))
{
this.m_connectionHelper.AddOuterEdgeIndex(ref vector3, ref vector2, num2);
}
num4 = num3;
if (!this.m_connectionHelper.TryRemoveOuterEdge(ref vector3, ref current, ref num4) && (base.Mesh.GetEdge(num3).OtherFace(tri.Index) != -1))
{
this.m_connectionHelper.AddOuterEdgeIndex(ref current, ref vector3, num3);
}
base.RemoveTriangle(tri);
}
public void GetVertices(out Vector3 a, out Vector3 b, out Vector3 c)
{
MyWingedEdgeMesh.FaceVertexEnumerator vertexEnumerator = this.m_navMesh.Mesh.GetFace(this.m_triIndex).GetVertexEnumerator();
vertexEnumerator.MoveNext();
a = vertexEnumerator.Current;
vertexEnumerator.MoveNext();
b = vertexEnumerator.Current;
vertexEnumerator.MoveNext();
c = vertexEnumerator.Current;
}
public void FindDangerousVertices(List <int> output)
{
MyWingedEdgeMesh.FaceVertexEnumerator vertexEnumerator = this.m_navMesh.Mesh.GetFace(this.m_triIndex).GetVertexEnumerator();
vertexEnumerator.MoveNext();
int currentIndex = vertexEnumerator.CurrentIndex;
vertexEnumerator.MoveNext();
int num2 = vertexEnumerator.CurrentIndex;
vertexEnumerator.MoveNext();
int num3 = vertexEnumerator.CurrentIndex;
}
public void GetTransformed(ref MatrixI tform, out Vector3 newA, out Vector3 newB, out Vector3 newC)
{
MyWingedEdgeMesh.FaceVertexEnumerator vertexEnumerator = this.m_navMesh.Mesh.GetFace(this.m_triIndex).GetVertexEnumerator();
vertexEnumerator.MoveNext();
newA = vertexEnumerator.Current;
Vector3.Transform(ref newA, ref tform, out newA);
vertexEnumerator.MoveNext();
newB = vertexEnumerator.Current;
Vector3.Transform(ref newB, ref tform, out newB);
vertexEnumerator.MoveNext();
newC = vertexEnumerator.Current;
Vector3.Transform(ref newC, ref tform, out newC);
}
private bool IsFaceTriangle(MyNavigationTriangle triangle, Vector3I cubePosition, Vector3I direction)
{
MyWingedEdgeMesh.FaceVertexEnumerator vertexEnumerator = triangle.GetVertexEnumerator();
vertexEnumerator.MoveNext();
vertexEnumerator.MoveNext();
vertexEnumerator.MoveNext();
cubePosition *= 0x100;
Vector3I vectori4 = (Vector3I)(cubePosition + (direction * 0x80));
Vector3I vectori = Vector3I.Round(vertexEnumerator.Current * 256f) - vectori4;
Vector3I vectori2 = Vector3I.Round(vertexEnumerator.Current * 256f) - vectori4;
Vector3I vectori3 = Vector3I.Round(vertexEnumerator.Current * 256f) - vectori4;
return(!((vectori * direction) != Vector3I.Zero) ? (!((vectori2 * direction) != Vector3I.Zero) ? (!((vectori3 * direction) != Vector3I.Zero) ? ((vectori.AbsMax() <= 0x80) && ((vectori2.AbsMax() <= 0x80) && (vectori3.AbsMax() <= 0x80))) : false) : false) : false);
}
private void RemoveAndAddTriangle(ref Vector3I positionA, ref Vector3I positionB, int registeredEdgeIndex)
{
MyNavigationTriangle edgeTriangle = base.GetEdgeTriangle(registeredEdgeIndex);
MyWingedEdgeMesh.FaceVertexEnumerator vertexEnumerator = edgeTriangle.GetVertexEnumerator();
vertexEnumerator.MoveNext();
Vector3 current = vertexEnumerator.Current;
vertexEnumerator.MoveNext();
vertexEnumerator.MoveNext();
Vector3I cube = this.FindTriangleCube(edgeTriangle.Index, ref positionA, ref positionB);
this.RemoveTriangle(edgeTriangle, cube);
MyNavigationTriangle tri = this.AddTriangleInternal(current, vertexEnumerator.Current, vertexEnumerator.Current);
this.RegisterTriangleInternal(tri, ref cube);
}
private void RemoveTriangle(MyNavigationTriangle triangle, Vector3I cube)
{
int num4;
int num5;
int num6;
MyWingedEdgeMesh.FaceVertexEnumerator vertexEnumerator = triangle.GetVertexEnumerator();
vertexEnumerator.MoveNext();
Vector3I pointA = Vector3I.Round(vertexEnumerator.Current * 256f);
vertexEnumerator.MoveNext();
Vector3I pointB = Vector3I.Round(vertexEnumerator.Current * 256f);
vertexEnumerator.MoveNext();
Vector3I vectori3 = Vector3I.Round(vertexEnumerator.Current * 256f);
int edgeIndex = triangle.GetEdgeIndex(0);
int num2 = triangle.GetEdgeIndex(1);
int num3 = triangle.GetEdgeIndex(2);
if (!this.m_connectionHelper.TryGetValue(new EdgeIndex(ref pointA, ref vectori3), out num4))
{
num4 = -1;
}
if (!this.m_connectionHelper.TryGetValue(new EdgeIndex(ref vectori3, ref pointB), out num5))
{
num5 = -1;
}
if (!this.m_connectionHelper.TryGetValue(new EdgeIndex(ref pointB, ref pointA), out num6))
{
num6 = -1;
}
if ((num4 == -1) || (num3 != num4))
{
this.m_connectionHelper.Add(new EdgeIndex(vectori3, pointA), num3);
}
else
{
this.m_connectionHelper.Remove(new EdgeIndex(ref pointA, ref vectori3));
}
if ((num5 == -1) || (num2 != num5))
{
this.m_connectionHelper.Add(new EdgeIndex(pointB, vectori3), num2);
}
else
{
this.m_connectionHelper.Remove(new EdgeIndex(ref vectori3, ref pointB));
}
if ((num6 == -1) || (edgeIndex != num6))
{
this.m_connectionHelper.Add(new EdgeIndex(pointA, pointB), edgeIndex);
}
else
{
this.m_connectionHelper.Remove(new EdgeIndex(ref pointB, ref pointA));
}
List <int> list = null;
this.m_smallTriangleRegistry.TryGetValue(cube, out list);
int index = 0;
while (true)
{
if (index < list.Count)
{
if (list[index] != triangle.Index)
{
index++;
continue;
}
list.RemoveAtFast <int>(index);
}
if (list.Count == 0)
{
this.m_smallTriangleRegistry.Remove(cube);
}
base.RemoveTriangle(triangle);
if ((num4 != -1) && (num3 != num4))
{
this.RemoveAndAddTriangle(ref pointA, ref vectori3, num4);
}
if ((num5 != -1) && (num2 != num5))
{
this.RemoveAndAddTriangle(ref vectori3, ref pointB, num5);
}
if ((num6 != -1) && (edgeIndex != num6))
{
this.RemoveAndAddTriangle(ref pointB, ref pointA, num6);
}
return;
}
}
private MyNavigationTriangle GetClosestNavigationTriangle(ref Vector3 point, ref float closestDistSq)
{
Vector3I vectori;
Vector3I.Round(ref point, out vectori);
MyNavigationTriangle triangle = null;
Vector3I start = vectori - new Vector3I(4, 4, 4);
Vector3I end = (Vector3I)(vectori + new Vector3I(4, 4, 4));
Vector3I_RangeIterator iterator = new Vector3I_RangeIterator(ref start, ref end);
while (iterator.IsValid())
{
List <int> list;
this.m_smallTriangleRegistry.TryGetValue(start, out list);
if (list != null)
{
foreach (int num in list)
{
MyNavigationTriangle triangle2 = base.GetTriangle(num);
MyWingedEdgeMesh.FaceVertexEnumerator vertexEnumerator = triangle2.GetVertexEnumerator();
vertexEnumerator.MoveNext();
Vector3 current = vertexEnumerator.Current;
vertexEnumerator.MoveNext();
Vector3 vector2 = vertexEnumerator.Current;
vertexEnumerator.MoveNext();
Vector3 vector3 = vertexEnumerator.Current;
Vector3 vector4 = ((current + vector2) + vector3) / 3f;
Vector3 vector5 = vector2 - current;
Vector3 vector6 = vector3 - vector2;
float num2 = Vector3.DistanceSquared(vector4, point);
if (num2 < (vector5.LengthSquared() + vector6.LengthSquared()))
{
Vector3 vector7 = Vector3.Cross(vector5, vector6);
vector7.Normalize();
vector5 = Vector3.Cross(vector5, vector7);
vector6 = Vector3.Cross(vector6, vector7);
float num3 = -Vector3.Dot(vector5, current);
float num4 = -Vector3.Dot(vector6, vector2);
Vector3 vector1 = Vector3.Cross(current - vector3, vector7);
float num5 = -Vector3.Dot(vector1, vector3);
float num6 = Vector3.Dot(vector5, point) + num3;
float num7 = Vector3.Dot(vector6, point) + num4;
float num8 = Vector3.Dot(vector1, point) + num5;
num2 = Vector3.Dot(vector7, point) - Vector3.Dot(vector7, vector4);
num2 *= num2;
if (num6 > 0f)
{
if (num7 <= 0f)
{
num2 = (num8 <= 0f) ? (num2 + Vector3.DistanceSquared(vector3, point)) : (num2 + (num7 * num7));
}
else if (num8 < 0f)
{
num2 += num8 * num8;
}
}
else if (num7 > 0f)
{
num2 = (num8 <= 0f) ? (num2 + Vector3.DistanceSquared(current, point)) : (num2 + (num6 * num6));
}
else if (num8 > 0f)
{
num2 += Vector3.DistanceSquared(vector2, point);
}
}
if (num2 < closestDistSq)
{
triangle = triangle2;
closestDistSq = num2;
}
}
}
iterator.GetNext(out start);
}
return(triangle);
}
