public Polygon2D GetRoomTemplateOutline()
{
var tilemaps = RoomTemplateUtilsGrid2D.GetTilemaps(gameObject);
var outlineTilemaps = RoomTemplateUtilsGrid2D.GetTilemapsForOutline(tilemaps);
var usedTiles = RoomTemplateUtilsGrid2D.GetUsedTiles(outlineTilemaps);
if (usedTiles.Count == 0)
{
return(null);
}
var minX = usedTiles.Min(x => x.x);
var maxX = usedTiles.Max(x => x.x);
var minY = usedTiles.Min(x => x.y);
var maxY = usedTiles.Max(x => x.y) + PaddingTop;
var polygonPoints = new List <Vector2Int>()
{
new Vector2Int(minX, minY),
new Vector2Int(minX, maxY),
new Vector2Int(maxX, maxY),
new Vector2Int(maxX, minY),
};
return(new Polygon2D(polygonPoints));
}
/// <summary>
/// Computes a polygon from points on given tilemaps.
/// </summary>
/// <param name="roomTemplate"></param>
/// <returns></returns>
public static PolygonGrid2D GetPolygonFromRoomTemplate(GameObject roomTemplate)
{
var outlineHandler = roomTemplate.GetComponent <IRoomTemplateOutlineHandlerGrid2D>();
if (outlineHandler != null)
{
var polygon2d = outlineHandler.GetRoomTemplateOutline();
return(polygon2d?.GetGridPolygon());
}
var tilemaps = RoomTemplateUtilsGrid2D.GetTilemaps(roomTemplate);
var outline = RoomTemplateUtilsGrid2D.GetTilemapsForOutline(tilemaps);
return(GetPolygonFromTilemaps(outline));
}
/// <summary>
/// Gets tilemaps that should be used when computing room template outline.
/// </summary>
/// <param name="tilemaps"></param>
/// <returns></returns>
public static List <Tilemap> GetTilemapsForOutline(ICollection <Tilemap> tilemaps)
{
return(RoomTemplateUtilsGrid2D.GetTilemapsForOutline(tilemaps));
}
/// <summary>
/// Computes a polygon from points on given tilemaps.
/// </summary>
/// <param name="tilemaps"></param>
/// <returns></returns>
public static PolygonGrid2D GetPolygonFromTilemaps(ICollection <Tilemap> tilemaps)
{
var usedTiles = GetUsedTiles(RoomTemplateUtilsGrid2D.GetTilemapsForOutline(tilemaps));
return(GetPolygonFromTiles(usedTiles));
}
