/// <summary>
/// Declares that the tiles in dest can be placed adjacent to the tiles in src, in the direction specified by (x, y, z).
/// Then it adds similar declarations for other rotations and reflections, as specified by rotations.
/// </summary>
public void AddAdjacency(IList <Tile> src, IList <Tile> dest, int x, int y, int z, TileRotation tileRotation = null)
{
tileRotation = tileRotation ?? new TileRotation();
foreach (var rotation in tileRotation.RotationGroup)
{
int x2, y2;
if (directions.Type == DirectionsType.Hexagonal2d)
{
(x2, y2) = TopoArrayUtils.HexRotateVector(x, y, rotation);
}
else
{
(x2, y2) = TopoArrayUtils.RotateVector(x, y, rotation);
}
AddAdjacency(
tileRotation.Rotate(src, rotation).ToList(),
tileRotation.Rotate(dest, rotation).ToList(),
x2, y2, z);
}
}
/// <summary>
/// Declares that the tiles in dest can be placed adjacent to the tiles in src, in the direction specified by (x, y, z).
/// Then it adds similar declarations for other rotations and reflections, as specified by rotations.
/// </summary>
public void AddAdjacency(IList <Tile> src, IList <Tile> dest, int x, int y, int z, int rotationalSymmetry, bool reflectionalSymmetry, TileRotation rotations = null)
{
rotations = rotations ?? new TileRotation();
int totalRotationalSymmetry;
if (directions.Type == DirectionsType.Hexagonal2d)
{
totalRotationalSymmetry = 6;
}
else
{
totalRotationalSymmetry = 4;
}
int reflections = reflectionalSymmetry ? 2 : 1;
for (var r = 0; r < reflections; r++)
{
var reflectX = r > 0 ? true : false;
for (var rotateCw = 0; rotateCw < totalRotationalSymmetry; rotateCw += (totalRotationalSymmetry / rotationalSymmetry))
{
int x2, y2;
if (directions.Type == DirectionsType.Hexagonal2d)
{
(x2, y2) = TopoArrayUtils.HexRotateVector(x, y, rotateCw, reflectX);
}
else
{
(x2, y2) = TopoArrayUtils.RotateVector(x, y, rotateCw, reflectX);
}
AddAdjacency(
rotations.Rotate(src, rotateCw, reflectX).ToList(),
rotations.Rotate(dest, rotateCw, reflectX).ToList(),
x2, y2, z);
}
}
}