public bool OpenDeserialize (byte[] bytes) {
#if !ASTAR_NO_JSON
// Enqueue some converters so that we can deserialize Unity builtin types
readerSettings = new JsonReaderSettings();
readerSettings.AddTypeConverter (new VectorConverter());
readerSettings.AddTypeConverter (new BoundsConverter());
readerSettings.AddTypeConverter (new LayerMaskConverter());
readerSettings.AddTypeConverter (new MatrixConverter());
readerSettings.AddTypeConverter (new GuidConverter());
readerSettings.AddTypeConverter (new UnityObjectConverter());
#endif
str = new MemoryStream();
str.Write(bytes,0,bytes.Length);
str.Position = 0;
try {
zip = ZipFile.Read(str);
} catch (Exception e) {
//Catches exceptions when an invalid zip file is found
Debug.LogWarning ("Caught exception when loading from zip\n"+e);
str.Dispose ();
return false;
}
meta = DeserializeMeta (zip["meta"+jsonExt]);
if (FullyDefinedVersion(meta.version) > FullyDefinedVersion(AstarPath.Version)) {
Debug.LogWarning ("Trying to load data from a newer version of the A* Pathfinding Project\nCurrent version: "+AstarPath.Version+" Data version: "+meta.version +
"\nThis is usually fine as the stored data is usually backwards and forwards compatible." +
"\nHowever node data (not settings) can get corrupted between versions, so it is recommended " +
"to recalculate any caches (those for faster startup) and resave any files. Even if it seems to load fine, it might cause subtle bugs.\n");
} else if (FullyDefinedVersion(meta.version) < FullyDefinedVersion(AstarPath.Version)) {
Debug.LogWarning ("Trying to load data from an older version of the A* Pathfinding Project\nCurrent version: "+AstarPath.Version+" Data version: "+meta.version+
"\nThis is usually fine, it just means you have upgraded to a new version." +
"\nHowever node data (not settings) can get corrupted between versions, so it is recommended " +
"to recalculate any caches (those for faster startup) and resave any files. Even if it seems to load fine, it might cause subtle bugs.\n");
}
return true;
}
private GraphMeta DeserializeMeta (ZipEntry entry) {
if ( entry == null ) throw new Exception ("No metadata found in serialized data.");
#if !ASTAR_NO_JSON
string s = GetString (entry);
var reader = new JsonReader(s,readerSettings);
return (GraphMeta)reader.Deserialize(typeof(GraphMeta));
#else
var meta = new GraphMeta();
var mem = new System.IO.MemoryStream();
entry.Extract (mem);
mem.Position = 0;
var reader = new System.IO.BinaryReader(mem);
if ( reader.ReadString() != "A*" ) throw new System.Exception ("Invalid magic number in saved data");
int major = reader.ReadInt32 ();
int minor = reader.ReadInt32 ();
int build = reader.ReadInt32 ();
int revision = reader.ReadInt32 ();
// Required because when saving a version with a field not set, it will save it as -1
// and then the Version constructor will throw an exception (which we do not want)
if ( major < 0 ) meta.version = new Version (0, 0);
else if ( minor < 0 ) meta.version = new Version (major, 0);
else if ( build < 0 ) meta.version = new Version (major, minor);
else if ( revision < 0 ) meta.version = new Version (major, minor, build);
else meta.version = new Version (major, minor, build, revision);
meta.graphs = reader.ReadInt32 ();
meta.guids = new string[reader.ReadInt32()];
for ( int i = 0; i < meta.guids.Length; i++ ) meta.guids[i] = reader.ReadString();
meta.typeNames = new string[reader.ReadInt32()];
for ( int i = 0; i < meta.typeNames.Length; i++ ) meta.typeNames[i] = reader.ReadString();
meta.nodeCounts = new int[reader.ReadInt32()];
for ( int i = 0; i < meta.nodeCounts.Length; i++ ) meta.nodeCounts[i] = reader.ReadInt32();
return meta;
#endif
}
public void OpenSerialize () {
// Create a new zip file, here we will store all the data
zip = new ZipFile();
zip.AlternateEncoding = System.Text.Encoding.UTF8;
zip.AlternateEncodingUsage = ZipOption.Always;
#if !ASTAR_NO_JSON
// Enqueue some converters so that we can serialize some Unity types
writerSettings = new JsonWriterSettings();
writerSettings.AddTypeConverter (new VectorConverter());
writerSettings.AddTypeConverter (new BoundsConverter());
writerSettings.AddTypeConverter (new LayerMaskConverter());
writerSettings.AddTypeConverter (new MatrixConverter());
writerSettings.AddTypeConverter (new GuidConverter());
writerSettings.AddTypeConverter (new UnityObjectConverter());
writerSettings.PrettyPrint = settings.prettyPrint;
#endif
meta = new GraphMeta();
}
