public void Turn(int amount)
{
amount = amount % 4; // Unnecessary turns
if (Math.Abs(amount) == 3)
{
amount /= -3; // 3 turns = 1 turn in opposite direction
}
stickers.Shift(-2 * amount);
var sideStickers = new Sticker[12];
var adjacentFaces = connections.Keys.ToArray();
for (int i = 0; i < adjacentFaces.Length; i++)
{
for (int j = 0; j < 3; j++)
{
Face face = adjacentFaces[i];
int index = stickers.LoopedIndex((int)connections[face] + j);
sideStickers[i * 3 + j] = face.stickers[index];
}
}
sideStickers.Shift(3 * amount);
for (int i = 0; i < adjacentFaces.Length; i++)
{
for (int j = 0; j < 3; j++)
{
Face face = adjacentFaces[i];
int index = stickers.LoopedIndex((int)connections[face] + j);
face.stickers[index] = sideStickers[i * 3 + j];
}
}
}
