/// Returns all tiles within a certain hex-grid manhattan distance of the origin
public static List <Vector2Int> GetAllWithinManhattanRange(Vector3Int origin, int range, bool includeSelf)
{
//Performance Tip if this turns out to be a bottleNeck in your games Performance: precalculate all the offsets for range 1,2,3,4,5,6... etc just once and store them in a list or dictionary
//Don't optimize it when not needed though, keeping things simple should be the priority
List <Vector2Int> positions = new List <Vector2Int>();
int minX = origin.x - range;
int maxX = origin.x + range;
int minY = origin.y - range;
int maxY = origin.y + range;
for (int x = minX; x <= maxX; x++)
{
for (int y = minY; y <= maxY; y++)
{
int z = -x - y;
if (Mathf.Abs(z - origin.z) > range)
{
continue;
}
positions.Add(HexConversions.CubeCoordToOffsetCoord(new Vector3Int(x, y, z)));
}
}
if (!includeSelf)
{
positions.Remove(HexConversions.CubeCoordToOffsetCoord(origin));
}
return(positions);
}
private GameObject[,] GenerateTiles()
{
GameObject[,] tiles = new GameObject[mapSize.x, mapSize.y];
for (int y = 0; y < mapSize.y; ++y)
{
for (int x = 0; x < mapSize.x; ++x)
{
// TODO - Deal with terrain randomization here
Vector2Int offsetCoordinates = new Vector2Int(x, y);
Vector3Int cubeCoordinates = HexConversions.OffsetCoordToCubeCoord(offsetCoordinates);
Vector3 worldCoordinates = HexConversions.OffsetCoordToWorldPosition(offsetCoordinates);
// Create the tile itself in the world view and assign its variables
GameObject tile = GameObject.Instantiate(tilePrefab);
tile.transform.SetParent(transform, true);
tile.transform.localPosition = worldCoordinates;
tile.name = cubeCoordinates.ToString();
((Tile)tile.GetComponent(typeof(Tile))).cubeCoordinates = cubeCoordinates;
// Add generated tile to array
tiles[x, y] = tile;
}
}
return(tiles);
}
public void HightlightCurrentHex(Color color)
{
Vector2Int hexPos = HexConversions.CubeCoordToOffsetCoord(curPosition);
Tile tile = (Tile)gameManager.map.Tiles[hexPos.x, hexPos.y].GetComponent(typeof(Tile));
tile.HightlightHex(color);
}
/// Returns all tiles which have a specific distance to the origin. Thickness goes inwards
public static List <Vector3Int> GetRing(Vector3Int origin, int radius, int thickness)
{
//This is also not the most performant way to do it but again for almost all use cases it should be absolutely no issue.
//If you happen to need a faster solution, again just precalculate the offets for each range once, store it in a list or dictionary and used that stored data
List <Vector3Int> ring = new List <Vector3Int>();
List <Vector2Int> allInManhattanrange = GetAllWithinManhattanRange(origin, radius, false);
foreach (var v in allInManhattanrange)
{
if (Distance(origin, HexConversions.OffsetCoordToCubeCoord(v)) > radius - thickness)
{
ring.Add(HexConversions.OffsetCoordToCubeCoord(v));
}
}
return(ring);
}
// Give a unitgroup a hex to move to and it should issue orders to all of its sub-units to move there
// after checking if the move is possible
// TODO - More sophisticated checking if a move is valid
public bool MoveTo(Vector3Int destinationHex)
{
// Check if the destination is within the UnitGroup's speed
if (Hex.Distance(curPosition, destinationHex) <= this.Speed)
{
// Set new current hex and move all sub-units to the new hex
// TODO - for now, the code works for one unit only. This function will need to tell each unit where to go so it looks nice in the hex.
HightlightCurrentHex(Color.white);
HighlightMovementRange(Color.white);
curPosition = destinationHex;
this.transform.position = HexConversions.CubeCoordToWorldPosition(destinationHex);
List <Vector3> unitPositions = getUnitPositions(units.Count);
for (int i = 0; i < units.Count; ++i)
{
units[i].MoveTo(this.transform.position + unitPositions[i]);
}
return(true);
}
else
{
Debug.Log("Squad attempted to move to a position outside of its range of movement");
return(false);
}
}
public Tile GetTileData(Vector3Int coord)
{
Vector2Int offsetCoord = HexConversions.CubeCoordToOffsetCoord(coord);
return((Tile)Tiles[offsetCoord.x, offsetCoord.y].GetComponent(typeof(Tile)));
}