public Hex GetNeighbour(HexDirection direction)
{
if ((int)direction > HexDirectionUtility.DirectionCount())
{
direction = (HexDirection)((int)direction & HexDirectionUtility.DirectionCount());
}
if ((int)direction < 0)
{
direction = (HexDirection)(HexDirectionUtility.DirectionCount() & (int)direction);
}
return(neighbours[(int)direction]);
}
private void TriangulateBorder(ref List <Hex> a_area, ref List <Hex> a_exclude)
{
bool process = false;
// Process each hex in area by checking if one of their neighbours are outside the area, and add them to the border if true
foreach (Hex tile in a_area)
{
process = a_exclude != null ? !a_exclude.Contains(tile) : true;
// Don't process tiles in the excluded list
if (process)
{
foreach (Hex neighbour in tile.Neighbours)
{
// check if the neighbour is outside of the area, if it's on the excluded list then don't check (useful when a unit is blocking a hex but shouldn’t have a border)
if (!a_area.Contains(neighbour) && (a_exclude != null && !a_exclude.Contains(neighbour)))
{
border.Add(tile);
break; // break because if one neighbour is outside the area then it's a border hex
}
}
}
}
// process each hex in border and add the points that border the outside of the area
foreach (Hex tile in border)
{
for (int i = 0; i < tile.Neighbours.Count; i++)
{
HexDirection direction = HexDirectionUtility.DirectionFromNeighbour(tile, tile.Neighbours[i]);
Vector3 centre = tile.transform.localPosition;
process = a_exclude != null ? !a_exclude.Contains(tile.Neighbours[i]) : true;
if (!a_area.Contains(tile.Neighbours[i]) && process)
{
AddTriangle(
centre + HexUtility.GetFirstCorner(direction),
centre + HexUtility.GetSecondCorner(direction),
centre + HexUtility.GetFirstCorner(direction) * inverseThickness
);
AddTriangleUV(
centre + HexUtility.GetFirstCorner(direction),
centre + HexUtility.GetSecondCorner(direction),
centre + HexUtility.GetFirstCorner(direction) * inverseThickness
);
AddTriangle(
centre + HexUtility.GetSecondCorner(direction) * inverseThickness,
centre + HexUtility.GetFirstCorner(direction) * inverseThickness,
centre + HexUtility.GetSecondCorner(direction)
);
AddTriangleUV(
centre + HexUtility.GetSecondCorner(direction) * inverseThickness,
centre + HexUtility.GetFirstCorner(direction) * inverseThickness,
centre + HexUtility.GetSecondCorner(direction)
);
}
else if (border.Contains(tile.Neighbours[i]))
{
int closestCorner = ClosestToOutside(tile, centre + HexUtility.GetFirstCorner(direction), centre + HexUtility.GetSecondCorner(direction), ref a_area, ref a_exclude);
if (closestCorner == 2)
{
AddTriangle(
centre + HexUtility.GetSecondCorner(direction),
centre + HexUtility.GetSecondCorner(direction) * inverseThickness,
centre + HexUtility.GetSecondCorner(direction) + (HexUtility.GetFirstCorner(direction) - HexUtility.GetSecondCorner(direction)) * borderThickness
);
AddTriangleUV(
centre + HexUtility.GetSecondCorner(direction),
centre + HexUtility.GetSecondCorner(direction) * inverseThickness,
centre + HexUtility.GetSecondCorner(direction) + (HexUtility.GetFirstCorner(direction) - HexUtility.GetSecondCorner(direction)) * borderThickness
);
}
else if (closestCorner == 1)
{
AddTriangle(
centre + HexUtility.GetFirstCorner(direction),
centre + HexUtility.GetFirstCorner(direction) + (HexUtility.GetSecondCorner(direction) - HexUtility.GetFirstCorner(direction)) * borderThickness,
centre + HexUtility.GetFirstCorner(direction) * inverseThickness
);
AddTriangleUV(
centre + HexUtility.GetFirstCorner(direction),
centre + HexUtility.GetFirstCorner(direction) + (HexUtility.GetSecondCorner(direction) - HexUtility.GetFirstCorner(direction)) * borderThickness,
centre + HexUtility.GetFirstCorner(direction) * inverseThickness
);
}
}
}
}
}