public HfzFile loadFile(string fileName, FileFormat format)
{
HfzFile file = new HfzFile();
Stream fs = null;
EndianBinaryReader reader = null;
try
{
debugLine("File format: " + format + ", file name: " + fileName);
//create a file stream to work with during load
fs = Util.openStream(fileName, format, FileMode.Open);
reader = Util.createEndianBinaryReaderForStream(fs);
HfzHeader header = hfzReadHeader(reader);
file.header = header;
Dictionary<short, HfzTile> tiles = readTiles(header, reader);
file.mapData = tiles;
}
catch(Exception ex)
{
throw ex;
}
finally
{
reader.Close();
if (debug)
{
writeLog.Close();
}
}
return file;
}
public Hf2HeightMap(string filename)
{
L3dtFileManager.L3dtFileManager hfzManager = new L3dtFileManager.L3dtFileManager();
if (filename.EndsWith(".hf2.gz") || filename.EndsWith(".hfz"))
{
this.file = hfzManager.loadHfzFile(filename, FileFormat.COMPRESSED);
}
else if (filename.EndsWith(".hf2"))
{
this.file = hfzManager.loadHfzFile(filename, FileFormat.UNCOMPRESSED);
}
else
{
throw new Exception("Not a HF2 map file");
}
}
public void saveFile(string fileName, FileFormat format, HfzFile file)
{
HfzHeader fh = validateHeader(file);
// initiate the writing procedure
EndianBinaryWriter fileWriter = null;
try
{
// open file for writing
Stream stream = Util.openStream(fileName, format, FileMode.Create);
fileWriter = Util.createEndianBinaryWriterForStream(stream);
hfzWriteHeader(ref fileWriter, fh);
// writing tiles
List<short> keys = file.getTileKeys();
foreach (short key in keys)
{
hfzWriteTile(ref fileWriter, fh, file.getTileData(key));
}
fileWriter.Close();
}
catch(Exception ex)
{
throw new Exception("Error writing file " + fileName, ex);
}
finally
{
// close file
if (fileWriter != null)
{
fileWriter.Close();
if (format == FileFormat.COMPRESSED)
{
Util.compressFile(fileName);
}
}
}
}
private HfzHeader validateHeader(HfzFile file)
{
Epsilon epsilon = new Epsilon(1E-3);
HfzHeader header = file.header;
if(header != null)
{
float precis = header.Precis;
ushort tileSize = header.TileSize;
UInt32 nx = header.nx;
UInt32 ny = header.ny;
if(!RealExtensions.LE(precis, 0.0, epsilon))
{
if (tileSize < 8 || tileSize > 65535)
{
throw new Exception("Invalid tilesize: " + tileSize);
}
else
{
if (nx <= 0 || ny <= 0)
{
throw new Exception("Invalid mapsize: " + nx + "," + ny);
}
}
}
else
{
throw new Exception("Invalid precis: " + precis);
}
}
else
{
throw new Exception("No header found in file");
}
return header;
}
public void saveHfzFile(string fileName, FileFormat format, HfzFile file)
{
hfzManager.saveFile(fileName, format, file);
}
public override void Dispose()
{
this.file = null;
}
private static void checkAllPixels(HfzFile file, int expectedCount)
{
int count = 0;
for (uint i = 1; i <= file.header.nx; i++)
{
for (uint j = 1; j <= file.header.ny; j++)
{
file.getPixelAt(i, j);
count++;
}
}
Assert.AreEqual(expectedCount, count);
}
