private void _InstantiateHexagon(Vector3Int coords)
{
Vector3 worldSpacePos = HexMath.HexCoordsToWorldSpace(coords);
GameObject HexagonGO = Instantiate(HexagonPrefab, worldSpacePos, Quaternion.identity, gameObject.transform);
HexagonGO.name = "Hex " + coords.ToString();
Hexagon hexagon = HexagonGO.AddComponent <Hexagon>();
hexagon.Initialise(coords, 1);
HexDict.Add(coords, hexagon);
}
//This is hard to make self documenting because of the ordering.
//If a hex is not a part of the map, it should be destroyed.
//However, you can't remove the hexagon from the HexDict while
//iterating through the HexDict, it breaks the foreach loop
//So there's an extra list to add the key to, in order to afterwards
//remove that key from the hex dict
/// <summary>
/// Go through every hex in the HexDict and delete if it not part of the map
/// </summary>
private void _DeleteUnusedHexagons()
{
List <Vector3Int> destroyedHexes = new List <Vector3Int>();
foreach (KeyValuePair <Vector3Int, IHexagon> hex in HexDict)
{
if (_ShouldDeleteThisHex(hex.Value))
{
_DeleteHex(hex.Value);
destroyedHexes.Add(hex.Key);
}
}
foreach (Vector3Int coords in destroyedHexes)
{
HexDict.Remove(coords);
}
}
//----------------------------------------------------------------------------
// UpdateHexNeighbours
//----------------------------------------------------------------------------
#region UpdateHexNeighbours
/// <summary>
/// After all hexes have been instantiated and validated
/// check in each direction for a valid neighbour
/// </summary>
public void UpdateHexNeighbours()
{
List <Vector3Int> directions = GetDirections();
foreach (KeyValuePair <Vector3Int, IHexagon> hex in HexDict)
{
HashSet <IHexagon> neighbours = new HashSet <IHexagon>();
foreach (Vector3Int direction in directions)
{
Vector3Int neighbourCoords = hex.Value.MyHexMap.CoOrds + direction;
if (HexDict.ContainsKey(neighbourCoords))
{
neighbours.Add(HexDict[neighbourCoords]);
}
}
((IHexagonRestricted)hex.Value).MyHexMapRestricted.SetNeighbours(neighbours);
}
}
