internal bool readEntity(Stream stream, string entityName, out RawEntity entity)
{
if (stream.CanSeek && stream.CanRead)
{
using (BinaryReader br = new BinaryReader(stream, System.Text.Encoding.UTF8, true))
{
if (entitiesNamesMap.TryGetValue(entityName, out int entityId))
{
var entityInfo = EntityInfos[entityId];
stream.Seek(entityInfo.EntityPosition, SeekOrigin.Begin);
entity = new RawEntity();
entity.Read(br);
return(true);
}
}
}
entity = new RawEntity();
return(false);
}
public static void CreateAndWriteDatabase(Stream output, Dictionary <string, IBundleEntity> entities)
{
if (!output.CanSeek || !output.CanWrite)
{
return;
}
var databaseStartPosition = output.Position;
var r = entities.OrderBy(t => t.Key).ToArray();
var entityInfos = new BundleEntityInfo[r.Length];
var tmpDB = new BundleEntitiesDatabase();
using (BinaryWriter bw = new BinaryWriter(output, System.Text.Encoding.UTF8, true))
{
// fill part info
for (int i = 0; i < r.Length; i++)
{
var item = r[i];
var info = entityInfos[i];
info.NameId = item.Key;
info.LocalId = i;
info.EntityType = item.Value.EntityType;
entityInfos[i] = info;
}
tmpDB.EntityInfos = entityInfos;
tmpDB.Write(bw);
// write entities
for (int i = 0; i < r.Length; i++)
{
var startPos = output.Position;
var entity = r[i];
var rawEntity = new RawEntity();
rawEntity.LocalId = i;
rawEntity.EntityType = entity.Value.EntityType;
entity.Value.Save(out byte[] data);
rawEntity.Entity = data;
rawEntity.EntityLength = data.Length;
rawEntity.Write(bw);
var info = entityInfos[i];
info.EntityPosition = startPos;
info.EntityLength = data.Length;
entityInfos[i] = info;
}
output.Seek(databaseStartPosition, SeekOrigin.Begin);
tmpDB.EntityInfos = entityInfos;
tmpDB.Write(bw); //write full info
}
}