//-----------------------------------------------------------------------------
public Boolean HasOverlap(Double prmUpperLeftEast, Double prmUpperLeftNorth, Double prmLowerRightEast, Double prmLowerRightNorth)
{
Int32 upperLeftEast = TileBlocks.Min(iter => iter.East);
Int32 upperLeftNorth = TileBlocks.Max(iter => iter.North);
Int32 lowerRightEast = TileBlocks.Max(iter => iter.East);
Int32 lowerRightNorth = TileBlocks.Min(iter => iter.North);
return(TcRectangle.HasOverlap(upperLeftEast, upperLeftNorth, lowerRightEast, lowerRightNorth, prmUpperLeftEast, prmUpperLeftNorth, prmLowerRightEast, prmLowerRightNorth));
}
//-----------------------------------------------------------------------------
public List <TcTileBlockInfo> GetTileBlocks(TcRectangle prmRect)
{
List <TcTileBlockInfo> tileBlocks = new List <TcTileBlockInfo>();
foreach (TcTileBlockInfo info in TileBlocks)
{
if (prmRect.HasOverlap(info.East, info.North, info.East + TileInfo.TileSize, info.North - TileInfo.TileSize))
{
tileBlocks.Add(info);
}
}
return(tileBlocks);
}
//-----------------------------------------------------------------------------
public List <Int32> GetTileIndices(TcRectangle prmArea)
{
HashSet <Int32> indices = new HashSet <Int32>();
foreach (TcTileBlockInfo info in TileBlocks)
{
if (prmArea.HasOverlap(info.East, info.North, info.East + TileInfo.TileSize, info.North - TileInfo.TileSize))
{
indices.Add(info.Row * TileInfo.Col + info.Col);
}
}
return(indices.ToList());
}
