public static void FindSegmentType(IcoSegment segment, out IcoSegment.SegmentType outType, out int outOrientation)
{
// Reset
for (int i = 0; i < 3; ++i)
{
ms_corners[i] = false;
ms_sides[i] = false;
}
for (int i = 0; i < 3; ++i)
{
if (segment.neighbours[i].heightLevel < segment.heightLevel)
{
ms_sides[i] = true;
}
if (!FullLoopLeft(segment, i))
{
ms_corners[i] = true;
}
}
EdgesSidesToType(segment, ms_corners, ms_sides, out outType, out outOrientation);
}
private static void EdgesSidesToType(IcoSegment segment, bool[] corners, bool[] sides, out IcoSegment.SegmentType outType, out int outOrientation)
{
int[] minCorner = new int[3];
int[] maxCorner = new int[3];
// level
int nbLower = 0;
int nbHigher = 0;
int nbLowerPlus = 0;
int nbHigherPlus = 0;
int nbEqual = 0;
// Shape
int nbCorners = 0;
int nbSides = 0;
// Finding
int corner = 0;
int side = 0;
int noCorner = 0;
int noSide = 0;
int lowest = 0;
int highest = 0;
for (int i = 0; i < 3; ++i)
{
minCorner[i] = MinHeightAtCorner(segment, i);
maxCorner[i] = MaxHeightAtCorner(segment, i);
// Corners
if (minCorner[i] < segment.heightLevel)
{
++nbLower;
}
if (maxCorner[i] > segment.heightLevel)
{
++nbHigher;
}
if (minCorner[i] + 1 < segment.heightLevel)
{
++nbLowerPlus;
}
if (maxCorner[i] - 1 > segment.heightLevel)
{
++nbHigherPlus;
}
if (maxCorner[i] == minCorner[i] && minCorner[i] == segment.heightLevel)
{
++nbEqual;
}
if (minCorner[i] < minCorner[lowest])
{
lowest = i;
}
if (minCorner[i] > minCorner[highest])
{
highest = i;
}
// Corners
if (corners[i])
{
++nbCorners;
corner = i;
}
else
{
noCorner = i;
}
// Sides
if (sides[i])
{
++nbSides;
side = i;
}
else
{
noSide = i;
}
}
/* print(
* "minCorner:" + minCorner[0] + minCorner[1] + minCorner[2] +
* " maxCorner:" + maxCorner[0] + maxCorner[1] + maxCorner[2] +
* " nbLower:" + nbLower + " nbHigher:" + nbHigher + " nbEqual:" + nbEqual +
* " nbLowerPlus:" + nbLowerPlus + " nbHigherPlus:" + nbHigherPlus);*/
outOrientation = 0;
if (nbCorners == 0 && nbSides == 0)
{
outType = IcoSegment.SegmentType.full;
}
else if (nbCorners == 1 && nbSides == 0)
{
outType = IcoSegment.SegmentType.corner1;
outOrientation = corner;
}
else if (nbCorners == 2 && nbSides == 0)
{
outType = IcoSegment.SegmentType.corner2;
outOrientation = noCorner;
}
else if (nbCorners == 3 && nbSides == 0)
{
outType = IcoSegment.SegmentType.corner3;
}
else if (nbCorners == 3 && nbSides == 2)
{
if (MinHeightAtCorner(segment, (noSide + 2) % 3) < segment.heightLevel - 1)
{
outOrientation = (noSide + 2) % 3;
outType = IcoSegment.SegmentType.side2Corner;
}
else
{
outOrientation = noSide;
outType = IcoSegment.SegmentType.side2;
}
}
else if (nbCorners == 3 && nbSides == 3)
{
if (nbLowerPlus == 3)
{
outType = IcoSegment.SegmentType.side3corner3;
}
else if (nbLowerPlus == 2 && nbLower == 3)
{
outType = IcoSegment.SegmentType.side3corner2;
outOrientation = highest;
}
else
{
outType = IcoSegment.SegmentType.side3;
}
}
else if (nbSides == 1 && nbCorners > 0)
{
if (corners[(side + 2) % 3])
{
outType = IcoSegment.SegmentType.sidecorner;
outOrientation = side;
}
else
{
outType = IcoSegment.SegmentType.side1;
outOrientation = (side + 2) % 3;
}
}
else if (nbSides == 1)
{
outType = IcoSegment.SegmentType.side1;
outOrientation = noSide;
}
else if (nbSides == 2)
{
outType = IcoSegment.SegmentType.side2;
outOrientation = noSide;
}
else if (nbSides == 3)
{
outType = IcoSegment.SegmentType.side3;
}
else
{
outType = IcoSegment.SegmentType.full;
outOrientation = 0;
}
}