// Create empty hexes adjacents to hex (if not already created).
public void CreateEmptyAdjacentHexes(Vector2 centerHexCoord)
{
foreach (Vector2 adjHexCoord in HexUtil.GetAdjacentCoords(centerHexCoord))
{
// If the hex already exists, then do nothing.
if (hexagons.ContainsKey(adjHexCoord))
{
continue;
}
CreateHex(adjHexCoord);
}
}