public IEnumerable<TileBase> GetTiles(
Rectangle bounds,
[NotNull] IEnumerable<TileBase> existingTiles)
{
TileSet tiles = new TileSet();
Queue<TileBase> openTiles = new Queue<TileBase>();
List<TileBase> removeTiles = new List<TileBase>();
Rectangle tileBounds;
foreach (TileBase tile in existingTiles)
{
// if tile is in bounds
// TODO The width and height must also be >= 1px
tileBounds = tile.GetApproximateBounds();
if (bounds.IntersectsWith(tileBounds))
{
tiles.Add(tile);
if (tile.GetOpenEdgeParts().Any())
openTiles.Enqueue(tile);
}
else
removeTiles.Add(tile);
}
foreach (TileBase tile in removeTiles)
tile.RemoveAdjacent();
if (tiles.Count < 1)
{
TileBase tile = Tiles[0];
Debug.Assert(tile != null, "tile != null");
// TODO The width and height must also be >= 1px
tileBounds = tile.GetApproximateBounds();
if (!bounds.IntersectsWith(tileBounds))
{
tile = new TileInstance(
(Tile) tile,
tile.Label,
tile.Transform * Matrix3x2.CreateTranslation(bounds.Center - tileBounds.Center));
}
// add initial tile to tiles
tiles.Add(tile);
// add initial tile to end of openTiles
openTiles.Enqueue(tile);
}
// while there are tiles with no neighbour
while (openTiles.Count > 0)
{
TileBase tile = openTiles.Dequeue();
// for each edgePart with no neighbour
foreach (EdgePart edgePart in tile.GetOpenEdgeParts())
{
TileBase newTile = CreateNewTile(tile, edgePart);
tiles.Add(newTile);
// if newTile is in bounds
// TODO The width and height must also be >= 1px
tileBounds = newTile.GetApproximateBounds();
if (bounds.IntersectsWith(tileBounds))
{
// add newTile to end of openTiles
openTiles.Enqueue(newTile);
}
}
}
// Set the style for the new cells
foreach (TileBase tile in tiles.Where(t => t.Style == null))
{
// set cell style from styleManager
tile.Style = StyleManager.GetStyle(tile);
}
return tiles.ToArray();
}
public IEnumerable <TileBase> GetTiles(
Rectangle bounds,
[NotNull] IEnumerable <TileBase> existingTiles)
{
TileSet tiles = new TileSet();
Queue <TileBase> openTiles = new Queue <TileBase>();
List <TileBase> removeTiles = new List <TileBase>();
Rectangle tileBounds;
foreach (TileBase tile in existingTiles)
{
// if tile is in bounds
// TODO The width and height must also be >= 1px
tileBounds = tile.GetApproximateBounds();
if (bounds.IntersectsWith(tileBounds))
{
tiles.Add(tile);
if (tile.GetOpenEdgeParts().Any())
{
openTiles.Enqueue(tile);
}
}
else
{
removeTiles.Add(tile);
}
}
foreach (TileBase tile in removeTiles)
{
tile.RemoveAdjacent();
}
if (tiles.Count < 1)
{
TileBase tile = Tiles[0];
Debug.Assert(tile != null, "tile != null");
// TODO The width and height must also be >= 1px
tileBounds = tile.GetApproximateBounds();
if (!bounds.IntersectsWith(tileBounds))
{
tile = new TileInstance(
(Tile)tile,
tile.Label,
tile.Transform * Matrix3x2.CreateTranslation(bounds.Center - tileBounds.Center));
}
// add initial tile to tiles
tiles.Add(tile);
// add initial tile to end of openTiles
openTiles.Enqueue(tile);
}
// while there are tiles with no neighbour
while (openTiles.Count > 0)
{
TileBase tile = openTiles.Dequeue();
// for each edgePart with no neighbour
foreach (EdgePart edgePart in tile.GetOpenEdgeParts())
{
TileBase newTile = CreateNewTile(tile, edgePart);
tiles.Add(newTile);
// if newTile is in bounds
// TODO The width and height must also be >= 1px
tileBounds = newTile.GetApproximateBounds();
if (bounds.IntersectsWith(tileBounds))
{
// add newTile to end of openTiles
openTiles.Enqueue(newTile);
}
}
}
// Set the style for the new cells
foreach (TileBase tile in tiles.Where(t => t.Style == null))
{
// set cell style from styleManager
tile.Style = StyleManager.GetStyle(tile);
}
return(tiles.ToArray());
}