private static ExtraBlock CreateExtraBlock(ExtraBlockType type)
{
switch (type)
{
case ExtraBlockType.ConM:
return(new ConMExtraBlock());
case ExtraBlockType.TV__:
return(new TVExtraBlock());
default:
Debug.Assert(false, "Attempting to create an unimplemented extra block!");
return(null);
}
}
private static ExtraBlock ParseExtraBlock(BinaryReader inputReader, ExtraBlockType type)
{
ExtraBlock block = CreateExtraBlock(type);
if (block == null)
{
Debug.Assert(false, "Extra block cannot be created!");
return(null);
}
if (!block.Parse(inputReader))
{
return(null);
}
return(block);
}
public static ExtraBlock[] ParseExtraBlocks(BinaryReader inputReader)
{
List <ExtraBlock> blocks = new List <ExtraBlock>();
while (true)
{
Int32 typeId = inputReader.ReadInt32();
if (typeId == 0)
{
break;
}
inputReader.BaseStream.Seek(-sizeof(Int32), SeekOrigin.Current);
string typeName = inputReader.ReadUInt32AsString();
if (!Enum.IsDefined(typeof(ExtraBlockType), typeName))
{
Trace.Assert(false, "Undefined extra block type encountered!");
return(null);
}
ExtraBlockType type = (ExtraBlockType)Enum.Parse(typeof(ExtraBlockType), typeName);
switch (type)
{
case ExtraBlockType.ConM:
case ExtraBlockType.TV__:
{
ExtraBlock block = ParseExtraBlock(inputReader, type);
if (block == null)
{
return(new ExtraBlock[0]);
}
blocks.Add(block);
}
break;
default:
Trace.Assert(false, "Unimplemented extra block type!");
break;
}
}
return(blocks.ToArray());
}
protected ExtraBlock(ExtraBlockType type)
{
Type = type;
}
