/// <summary>
/// Changes a cell's contents, correcting for layer.
/// </summary>
/// <param name="gridPosition"></param>
/// <param name="tileToPlace"></param>
public void PaintCell(Point gridPosition, ZTile tileToPlace)
{
if (!Map.IsOnGrid(gridPosition))
return;
// Set correct layer
var layer = 1;
if (!_useAltEditLayer)
{
layer = 0;
if (tileToPlace.TileType != TileType.Floor)
{
layer = 3;
// Layers 2 & 4 are generally used for wall filler tiles atm
if (tileToPlace.Name.Contains("_ct_") || tileToPlace.Name.Contains("_c_") || tileToPlace.Name.Contains("_d_"))
layer = 4;
if (tileToPlace.Name.Contains("_b_") || tileToPlace.Name.Contains("b&d") )
layer = 2;
}
if (tileToPlace.Flags.Contains(TileFlag.Ethereal))
layer = 4;
}
// Check we're not swapping for the same thing
if (Map.Cells[gridPosition.X, gridPosition.Y][layer] == tileToPlace) return;
// Update the undo buffer with the old info
var newNode = new DoubleLinkedListNode<MapDefinition>(Map.Clone(), _currentUndoNode);
if (_currentUndoNode != null)
_currentUndoNode.Next = newNode;
_currentUndoNode = newNode;
Map.UndoInfo.Clear();
Map.UndoInfo.UnionWith(Map.LegallyPlaceTile(gridPosition, layer, tileToPlace));
MapCanvas.AdaptiveTileRefresh(Map.UndoInfo.OrderBy(x => x.Y));
}
// Remember to update Clone() before adding any more instance variables!
/// <summary>
/// Constructor.
/// </summary>
public MapDefinition(ZTile defaultFloorTile, Isometry iso, string baseContentDir)
{
_baseContentDir = baseContentDir;
Iso = iso;
DefaultFloorTile = defaultFloorTile;
TileHeight = 37;
TileWidth = 73;
UndoInfo = new HashSet<Point>();
Cells = new MapCell[0, 0];
ClearAllCells(26, 45);
}
/// <summary>
/// Adds a new tile, taking care of regions and other objects.
/// </summary>
/// <param name="gridPosition"></param>
/// <param name="layer"></param>
/// <param name="tileToPlace"></param>
/// <returns></returns>
public IOrderedEnumerable<Point> LegallyPlaceTile(Point gridPosition, int layer, ZTile tileToPlace)
{
// Get the footprint of the new tile
HashSet<Point> footPrint = getFootprint(gridPosition, tileToPlace);
// Step thru each cell in the footprint...
foreach (Point p in footPrint.ToList())
{
// If it has a link then find the parent, delete that and set its children to none
if (Cells[p.X, p.Y].ParentCell != null)
{
Point parent = Cells[p.X, p.Y].ParentCell.MapCoordinate;
HashSet<Point> children = getFootprint(parent, Cells[p.X, p.Y].ParentCell[layer]);
Cells[p.X, p.Y].ParentCell[layer] = null;
foreach (Point q in children)
{
Cells[q.X, q.Y].ParentCell = null;
}
footPrint.UnionWith(children);
}
// If it has an object delete it and set that objects children to none
if (Cells[p.X, p.Y][layer] != null)
{
HashSet<Point> children = getFootprint(p, Cells[p.X, p.Y][layer]);
foreach (Point q in children)
{
Cells[q.X, q.Y].ParentCell = null;
}
Cells[p.X, p.Y][layer] = null;
footPrint.UnionWith(children);
}
}
foreach (Point p in getFootprint(gridPosition, tileToPlace))
// Set each footprint cell's parent
Cells[p.X, p.Y].ParentCell = Cells[gridPosition.X, gridPosition.Y];
// Set the 'actual' position
Cells[gridPosition.X, gridPosition.Y][layer] = tileToPlace;
Cells[gridPosition.X, gridPosition.Y].ParentCell = null;
// Now add in extra cells to take into account height
foreach (Point p in footPrint.ToList())
{
footPrint.Add(Iso.TileWalker(p, CompassDirection.North));
footPrint.Add(Iso.TileWalker(p, CompassDirection.NorthWest));
footPrint.Add(Iso.TileWalker(p, CompassDirection.NorthEast));
}
foreach (Point p in footPrint.ToList())
{
footPrint.Add(Iso.TileWalker(p, CompassDirection.North));
footPrint.Add(Iso.TileWalker(p, CompassDirection.NorthWest));
}
return footPrint.ToList().OrderBy(x => x.Y).ThenBy(n => n.X);
}
/// <summary>
/// Returns a list of cells which contain a portion of the given tile.
/// </summary>
/// <param name="gridPosition"></param>
/// <param name="layer"></param>
/// <returns></returns>
internal HashSet<Point> getFootprint(Point gridPosition, ZTile tile)
{
var children = new HashSet<Point> {gridPosition};
if (tile == null)
return children;
var ne = tile.BoundingBox[0] / 6;
var nw = tile.BoundingBox[2] / 6;
// Adjust for tile-fraction overlaps
if (tile.BoundingBox[0] % 6 > 0)
{
ne++;
}
if (tile.BoundingBox[2] % 6 > 0)
{
nw++;
}
var startPosition = gridPosition;
for (var i = 0; i < ne; i++)
{
for (var j = 0; j < nw; j++)
{
if (IsOnGrid(gridPosition))
children.Add(gridPosition);
gridPosition = Iso.TileWalker(gridPosition, CompassDirection.NorthWest);
}
gridPosition = Iso.TileWalker(startPosition, CompassDirection.NorthEast, i + 1);
}
return children;
}