public Grid(
LazyCache <Vector2Int> size = null,
GridTotals totals = null,
ObservableCollection <T> gridMembers = null,
Dictionary <Vector2Int, T> occupiedTiles = null,
Dictionary <T, List <T> > neighbourDict = null)
{
Size = size ?? new LazyCache <Vector2Int>(() => {
var bounds = new GridBounds(OccupiedTiles.Keys);
return(bounds.GetDelta());
});
Totals = totals ?? new GridTotals();
GridMembers = gridMembers ?? new ObservableCollection <T>();
OccupiedTiles = occupiedTiles ?? new Dictionary <Vector2Int, T>();
NeighbourDict = neighbourDict ?? new Dictionary <T, List <T> >();
}
public static IEnumerable <T> GetNeighbours <T>(this Grid <T> grid, IEnumerable <Vector2Int> tilePositions)
where T : class, IGridMember
{
// Get grid positions around block
var bounds = new GridBounds(tilePositions);
var neighbourPositions = bounds.GetAdjacentPositions();
var neighbours = new List <T>();
foreach (var neighbourPosition in neighbourPositions)
{
if (grid.ContainsMember(neighbourPosition))
{
var neighbour = grid.GetMember(neighbourPosition);
if (!neighbours.Contains(neighbour))
{
neighbours.Add(neighbour);
yield return(neighbour);
}
}
}
}