/// <summary>
/// Load the information for a single tile (as in parse the needed .t -file.
/// </summary>
/// <param name="tileX">The cornerIndexX-value of the tile number</param>
/// <param name="tileZ">The cornerIndexZ-value of the tile number</param>
/// <param name="loTiles">Loading LO tile (Distant Mountain) or not</param>
/// <returns>The tile information as a 'Tile' object</returns>
private Tile LoadTile(int tileX, int tileZ, bool loTiles)
{
TileName.Zoom zoom = loTiles ? TileName.Zoom.DMSmall : TileName.Zoom.Small;
string path = loTiles ? this.lotilesPath : this.tilesPath;
// Note, code is similar to ORTS.Viewer3D.TileManager.Load
// Check for 1x1 or 8x8 tiles.
TileName.Snap(ref tileX, ref tileZ, zoom);
// we set visible to false to make sure errors are loaded
Tile newTile = new Tile(path, tileX, tileZ, zoom, false);
if (newTile.Loaded)
{
return(newTile);
}
else
{
// Check for 2x2 or 16x16 tiles.
TileName.Snap(ref tileX, ref tileZ, zoom - 1);
newTile = new Tile(tilesPath, tileX, tileZ, zoom - 1, false);
if (newTile.Loaded)
{
return(newTile);
}
}
return(null);
}
public Tile(string filePath, int tileX, int tileZ, TileName.Zoom zoom, bool visible)
{
TileX = tileX;
TileZ = tileZ;
Size = 1 << (15 - (int)zoom);
var fileName = filePath + TileName.FromTileXZ(tileX, tileZ, zoom);
if (!File.Exists(fileName + ".t"))
{
// Many tiles adjacent to the visible tile may not be modelled, so a warning is not helpful;
// ignore a missing .t file unless it is the currently visible tile.
if (visible)
{
Trace.TraceWarning("Ignoring missing tile {0}.t", fileName);
}
return;
}
// T and Y files are expected to exist; F files are optional.
try
{
TFile = new TerrainFile(fileName + ".t");
}
catch (Exception error)
{
Trace.WriteLine(new FileLoadException(fileName + ".t", error));
}
try
{
YFile = new TerrainAltitudeFile(fileName + "_y.raw", SampleCount);
}
catch (Exception error)
{
Trace.WriteLine(new FileLoadException(fileName + "_y.raw", error));
}
try
{
if (File.Exists(fileName + "_f.raw"))
{
FFile = new TerrainFlagsFile(fileName + "_f.raw", SampleCount);
}
}
catch (Exception error)
{
Trace.WriteLine(new FileLoadException(fileName + "_f.raw", error));
}
}
/// <summary>
/// Constructs a new TileManager for loading tiles from a specific path, either at high-resolution or low-resolution.
/// </summary>
/// <param name="filePath">Path of the directory containing the MSTS tiles</param>
/// <param name="loTiles">Flag indicating whether the tiles loaded should be high-resolution (2KM and 4KM square) or low-resolution (16KM and 32KM square, for distant mountains)</param>
public TileManager(string filePath, bool loTiles)
{
FilePath = filePath;
Zoom = loTiles ? TileName.Zoom.DMSmall : TileName.Zoom.Small;
}
