/// <summary>
/// Fills in background tiles for any non-empty cell that is adjacent to a background tile. Returns true if any changes were made.
/// </summary>
/// <param name="mapGrid"></param>
/// <param name="grassMap"></param>
/// <returns></returns>
public static void CalculateObscuredTiles(ArrayGrid <ImageCellType> mapGrid, TileMaskMap bgMap)
{
List <Vector2> tilesToAdd = new List <Vector2>();
List <Vector2> tilesToRecheck = new List <Vector2>();
foreach (var tile in mapGrid.PointItems)
{
if (bgMap.TileFlags.GetFromPoint(tile.Position) == TileMaskValue.Filled)
{
continue;
}
if (tile.Value == ImageCellType.Empty)
{
continue;
}
if (tile.Value.IsSolid())
{
bgMap.TileFlags.Set(tile.Position, TileMaskValue.Obscured);
}
else if (tile.Position.GetAdjacentPoints(true).Select(bgMap.TileFlags.GetFromPoint).Where(p => p == TileMaskValue.Filled).Any())
{
bgMap.TileFlags.Set(tile.Position, TileMaskValue.Filled);
}
}
}
private void InitMaps()
{
BrownRockMap = new TileMaskMap(Cells.Map(p => p == ImageCellType.BrownRock), GameTiles.BrownRock());
GrassMap = new TileMaskMap(Cells.Map(p => p == ImageCellType.GrassBackground), GameTiles.Grass());
WaterMap = new TileMaskMap(Cells.Map(p => p == ImageCellType.Water), GameTiles.Water());
LadderMap = new TileMaskMap(Cells.Map(p => p == ImageCellType.Ladder), GameTiles.Ladder());
}
/// <summary>
/// Extends tiles one unit into the obscured tiles, for smoother boundaries
/// </summary>
/// <param name="waterTiles"></param>
public static void ExtendTileMask(TileMaskMap tiles)
{
List <ArrayGridPoint <TileMaskValue> > itemsToSet = new List <ArrayGridPoint <TileMaskValue> >();
foreach (var tile in tiles.TileFlags.PointItems.Where(p => p.Value == TileMaskValue.Filled))
{
itemsToSet.AddRange(tile.GetAdjacent().Where(p => p.Value == TileMaskValue.Obscured));
}
foreach (var item in itemsToSet)
{
item.Set(TileMaskValue.Filled);
}
}
