/// <summary>
/// Declares that a tile is symetric, and therefore transforms to iteself.
/// This is a shorthand for calling Add(tile,..., tile) for specific rotations.
/// </summary>
public void AddSymmetry(Tile tile, TileSymmetry ts)
{
// I've listed the subgroups in the order found here:
// https://groupprops.subwiki.org/wiki/Subgroup_structure_of_dihedral_group:D8
switch (ts)
{
case TileSymmetry.F:
GetGroup(tile, out var _);
break;
case TileSymmetry.N:
Add(tile, new Rotation(2 * 90, false), tile);
break;
case TileSymmetry.T:
Add(tile, new Rotation(0 * 90, true), tile);
break;
case TileSymmetry.L:
Add(tile, new Rotation(1 * 90, true), tile);
break;
case TileSymmetry.E:
Add(tile, new Rotation(2 * 90, true), tile);
break;
case TileSymmetry.Q:
Add(tile, new Rotation(3 * 90, true), tile);
break;
case TileSymmetry.I:
Add(tile, new Rotation(0 * 90, true), tile);
Add(tile, new Rotation(2 * 90, false), tile);
break;
case TileSymmetry.Slash:
Add(tile, new Rotation(1 * 90, true), tile);
Add(tile, new Rotation(2 * 90, false), tile);
break;
case TileSymmetry.Cyclic:
Add(tile, new Rotation(1 * 90, false), tile);
break;
case TileSymmetry.X:
Add(tile, new Rotation(0 * 90, true), tile);
Add(tile, new Rotation(1 * 90, false), tile);
break;
}
}
/// <summary>
/// Declares that a tile is symetric, and therefore transforms to iteself.
/// This is a shorthand for calling Add(tile,..., tile) with the list of transformations
/// related to the symmetry.
/// </summary>
public void AddSymmetry(Tile tile, TileSymmetry ts)
{
// I've listed the subgroups in the order found here:
// https://groupprops.subwiki.org/wiki/Subgroup_structure_of_dihedral_group:D8
switch (ts)
{
case TileSymmetry.F:
break;
case TileSymmetry.N:
Add(tile, 2, false, tile);
break;
case TileSymmetry.T:
Add(tile, 0, true, tile);
break;
case TileSymmetry.L:
Add(tile, 1, true, tile);
break;
case TileSymmetry.E:
Add(tile, 2, true, tile);
break;
case TileSymmetry.Q:
Add(tile, 3, true, tile);
break;
case TileSymmetry.I:
Add(tile, 0, true, tile);
Add(tile, 2, false, tile);
break;
case TileSymmetry.Slash:
Add(tile, 1, true, tile);
Add(tile, 2, false, tile);
break;
case TileSymmetry.Cyclic:
Add(tile, 1, false, tile);
break;
case TileSymmetry.X:
Add(tile, 0, true, tile);
Add(tile, 1, false, tile);
break;
}
}
