public void Should_calculate_direction_correctly()
{
var coord = new HexCoords(0, 0);
var neighbor = new HexCoords(0, 1);
Assert.AreEqual(1, HexCoords.Distance(coord, neighbor));
neighbor = new HexCoords(0, 1);
Assert.AreEqual(1, HexCoords.Distance(coord, neighbor));
neighbor = new HexCoords(-1, 1);
Assert.AreEqual(1, HexCoords.Distance(coord, neighbor));
neighbor = new HexCoords(1, 0);
Assert.AreEqual(1, HexCoords.Distance(coord, neighbor));
neighbor = new HexCoords(-1, 0);
Assert.AreEqual(1, HexCoords.Distance(coord, neighbor));
neighbor = new HexCoords(1, -1);
Assert.AreEqual(1, HexCoords.Distance(coord, neighbor));
neighbor = new HexCoords(0, -1);
Assert.AreEqual(1, HexCoords.Distance(coord, neighbor));
}
int CalculateSteps(string input)
{
HexCoords[] dirs = input.Split(',').Select(
s => HexCoords.Direction(s)).ToArray();
HexCoords coords = new HexCoords();
int max = 0;
foreach (HexCoords dir in dirs)
{
coords.x += dir.x;
coords.y += dir.y;
coords.z += dir.z;
max = Math.Max(max, coords.Distance());
}
Console.Write("Max: {0}", max);
return(coords.Distance());
}