/// <summary>
/// Creates an instance of the Face class.
/// </summary>
/// <param name="e1">Any edge.</param>
/// <param name="e2">Any edge.</param>
/// <param name="e3">Any edge.</param>
/// <param name="handle">The handle to the face.</param>
public Face(Edge e1, Edge e2, Edge e3, NavigationFaceWrapper handle)
{
ab = e1;
if (ab.b == e2.a || ab.b == e2.b)
{
bc = e2;
ca = e3;
}
else
{
bc = e3;
ca = e2;
}
if (ab.b == bc.b)
{
bcIsReversed = true;
caIsReversed = bc.a == ca.b;
}
else
{
bcIsReversed = false;
caIsReversed = bc.b == ca.b;
}
plane = new Plane(A, B, C);
this.handle = handle;
}
/// <summary>
/// Creates a new instance of the RegisterFaceCommand class.
/// </summary>
/// <param name="a">Point a of the triangle.</param>
/// <param name="b">Point b of the triangle.</param>
/// <param name="c">Point c of the triangle.</param>
/// <param name="surface">The target surface.</param>
/// <param name="handle">The face handle.</param>
public RegisterFaceCommand(Vector3 a, Vector3 b, Vector3 c,
NavigationSurface surface, NavigationFaceWrapper handle)
{
this.a = a;
this.b = b;
this.c = c;
this.handle = handle;
this.surface = surface;
}
/// <summary>
/// Unregisters the face with the handle.
/// </summary>
/// <param name="handle">The handle to the face.</param>
public void UnregisterFace(NavigationFaceWrapper handle)
{
if (faces.TryGetValue(handle, out var face))
{
faces.Remove(handle);
RemoveFaceUsageFromEdge(face.ab, face);
RemoveFaceUsageFromEdge(face.bc, face);
RemoveFaceUsageFromEdge(face.ca, face);
}
else
{
Debug.LogError("Unknown handle. Ignoring request.");
}
}
/// <summary>
/// Registers a triangle as a face.
/// </summary>
/// <param name="a">Point a of the triangle.</param>
/// <param name="b">Point b of the triangle.</param>
/// <param name="c">Point c of the triangle.</param>
/// <param name="handle">The face handle.</param>
public void RegisterFace(Vector3 a, Vector3 b, Vector3 c, NavigationFaceWrapper handle)
{
var aVertex = FindOrCreateVertex(a);
var bVertex = FindOrCreateVertex(b);
var cVertex = FindOrCreateVertex(c);
var aEdge = FindOrCreateEdge(aVertex, bVertex);
var bEdge = FindOrCreateEdge(bVertex, cVertex);
var cEdge = FindOrCreateEdge(cVertex, aVertex);
var face = new Face(aEdge, bEdge, cEdge, handle);
aEdge.AddUser(face);
bEdge.AddUser(face);
cEdge.AddUser(face);
faces.Add(handle, face);
}
/// <summary>
/// Creates a new instance of the UnregisterFaceCommand class.
/// </summary>
/// <param name="handle">The face handle.</param>
/// <param name="surface">The target surface.</param>
public UnregisterFaceCommand(NavigationFaceWrapper handle, NavigationSurface surface)
{
this.handle = handle;
this.surface = surface;
}
