/// <summary>
/// Enumerates all cells within a given distance from cellId
/// </summary>
/// <param name="cellId"></param>
/// <param name="distanceMax"></param>
/// <returns></returns>
public int[] FindCellsAround(int cellId, int distanceMax, bool WalkableOnly, bool LOSNeeded = false)
{
List <int> result = new List <int>();
if (LOSNeeded && ((_map == null)))
{
throw new TypeAccessException("IMap is not a Map");
}
int x = _cells[cellId].X;
int y = _cells[cellId].Y;
for (int px = x - distanceMax; px <= x + distanceMax; px++)
{
for (int py = y - distanceMax; py <= y + distanceMax; py++)
{
//if (px >= 0 && py >= 0 && px <= CellInfo.MAP_SIZE && py <= CellInfo.MAP_SIZE) // Within map
if ((Math.Abs(x - px) + Math.Abs(y - py)) <= distanceMax) // Close enough
{
int newCell = CellInfo.CellIdFromPos(px, py);
if (newCell != CellInfo.CELL_ERROR)
{
if (!WalkableOnly || _cells[newCell].IsWalkable)
{
if (!LOSNeeded || _map.CanBeSeen(_cells[cellId].Cell, _cells[newCell].Cell))
{
result.Add(newCell);
}
}
}
}
}
}
return(result.ToArray());
}
