/// <summary>
/// Takes boundary in standardized form and instead of trying to add all boundaries that can be transited to from this one,
/// it immediately resolves them (It certainly will be one of the smallest possible.).
/// If it finds the end of triarc it changes triarc state to found and starts the finishing backtracking of triarc.
/// </summary>
/// <param name="boundary">Boundary to transit from</param>
/// <param name="orderOfHighestBitSet">Pre-proccesed information boundary</param>
/// <param name="orderOfSecondHighestBitSet">Pre-procccesed information about boundary</param>
void TransitAndAddOnlyTwoOnes(long boundary, int orderOfHighestBitSet, int orderOfSecondHighestBitSet)
{
int shorterSequenceOfNulls = orderOfHighestBitSet - orderOfSecondHighestBitSet - 1;
int longerSequenceOfNulls = orderOfSecondHighestBitSet;
//defensive programming - control check
if (orderOfHighestBitSet - orderOfSecondHighestBitSet - 1 > orderOfSecondHighestBitSet)
{
shorterSequenceOfNulls = orderOfSecondHighestBitSet;
longerSequenceOfNulls = orderOfHighestBitSet - orderOfSecondHighestBitSet - 1;
}
foreach (var face in FacesSizes)
{
//If connecting first and second one by an edge causes that both new faces are in allowed, than solution has been found
if (shorterSequenceOfNulls + 2 == face && FacesSizes.Contains(longerSequenceOfNulls + 2))
{
long newBoundary = BoundaryLong.FaceToBoundary(face);
if (AddTransition(boundary, newBoundary))
{
Found = true;
}
}
if (shorterSequenceOfNulls + 2 + 1 < face) //needs to enlarge by two at least
{ //ones are changed to nulls, new ones remains + number of nulls in secondSequence + 2
//jedničky se změní na nuly, zbydou nové jedničky + počet nul v delší sérii + 2
long newBoundary = 0;
for (int i = longerSequenceOfNulls + 2; i < longerSequenceOfNulls + face - shorterSequenceOfNulls; i++)
{
newBoundary |= SetBits[i];
}
if (IsValid(newBoundary) && AddTransition(boundary, newBoundary))
{
ResolveBoundary(newBoundary);
}
}
if (longerSequenceOfNulls + 2 + 1 < face) //needs to enlarge by two at least
{ //jedničky se změní na nuly, zbydou nové jedničky + počet nul v delší sérii + 2
long newBoundary = 0;
for (int i = shorterSequenceOfNulls + 2; i < shorterSequenceOfNulls + face - longerSequenceOfNulls; i++)
{
newBoundary |= SetBits[i];
}
if (IsValid(newBoundary) && AddTransition(boundary, newBoundary))
{
ResolveBoundary(newBoundary);
}
}
}
}
/// <summary>
/// Constructor takes three counts which represent counts of vertices between main triarc vertices, that have degree 2 in triarc.
/// FaceSizes must be those values that Eberhard-like theorems suggest.
/// </summary>
/// <param name="a">First number that determines triarc</param>
/// <param name="b">Second number that determines triarc</param>
/// <param name="c">Third number that determines triarc</param>
/// <param name="facesSizes">List of values that satisfy neccesary conditions. Must has greatest value last, should be sorted. </param>
/// <param name="taskCount">Best speed should be achieved by taskCount similar to number of proccesors.</param>
public TriarcSolving(int a, int b, int c, int[] facesSizes)
{
this.TaskCount = Global.TaskCount;
this.TransitionLimit = Global.Limit;
this.Name = "(" + a + "," + b + "," + c + ")";
this.FacesSizes = facesSizes;
StartingBoundary = CreateOuterBoundaryOfTriarc(a, b, c);
Faces = new long[facesSizes.Length];
for (int i = 0; i < Faces.Length; i++)
{
Faces[i] = BoundaryLong.FaceToBoundary(FacesSizes[i]);
}
}
public TriarcSolving(long startingBoundary, int[] facesSizes)
{
this.TaskCount = Global.TaskCount;
this.TransitionLimit = Global.Limit;
this.Name = "(" + Convert.ToString(startingBoundary, 2) + ")";
this.FacesSizes = facesSizes;
StartingBoundary = startingBoundary;
Faces = new long[facesSizes.Length];
for (int i = 0; i < Faces.Length; i++)
{
Faces[i] = BoundaryLong.FaceToBoundary(FacesSizes[i]);
}
}