public ObcdBlock Read(ScummBlockHeader header, ScummBinaryReader reader)
{
var result = new ObcdBlock
{
Header = header
};
long endIndex = reader.BaseStream.Position + result.Header.ContentLength;
while (reader.BaseStream.Position < endIndex)
{
var childHeader = reader.ReadBlockHeader();
switch (childHeader.HeaderName)
{
case "CDHD":
//if (result.Room != null) throw new DuplicateBlockException(childHeader.HeaderName);
reader.BaseStream.Seek(childHeader.ContentLength, SeekOrigin.Current);
break;
case "VERB":
if (result.Verb != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.Verb = new VerbReader().Read(childHeader, reader);
break;
case "OBNA":
if (result.Name != null) throw new DuplicateBlockException(childHeader.HeaderName);
var bytes = reader.ReadBytes((int)childHeader.ContentLength);
result.Name = System.Text.Encoding.ASCII.GetString(bytes);
result.Name = result.Name.TrimEnd('\0');
break;
default:
throw new UnexpectedObjectScriptBlockException(childHeader.HeaderName);
}
}
return result;
}
public BoxdBlock Read(ScummBlockHeader header, ScummBinaryReader reader)
{
var numBlocks = reader.ReadUInt16();
var boxList = new List<BoxdBlock.Box>();
for (int i = 0; i < numBlocks; i++)
{
var box = new BoxdBlock.Box()
{
UpperLeftX = reader.ReadUInt16(),
UpperLeftY = reader.ReadUInt16(),
UpperRightX = reader.ReadUInt16(),
UpperRightY = reader.ReadUInt16(),
LowerRightX = reader.ReadUInt16(),
LowerRightY = reader.ReadUInt16(),
LowerLeftX = reader.ReadUInt16(),
LowerLeftY = reader.ReadUInt16(),
Mask = reader.ReadByte(),
Flags = reader.ReadByte(),
Scale = reader.ReadUInt16()
};
boxList.Add(box);
}
var result = new BoxdBlock
{
Header = header,
BoxList = boxList
};
return result;
}
public BoxmBlock Read(ScummBlockHeader header, ScummBinaryReader reader)
{
var pathList = new List<List<byte>>();
long endIndex = reader.BaseStream.Position + header.ContentLength;
List<byte> path = null;
while (reader.BaseStream.Position < endIndex)
{
if (path == null)
path = new List<byte>();
var curByte = reader.ReadByte();
if (curByte != 0xff)
{
path.Add(curByte);
}
else
{
pathList.Add(path);
path = null;
}
}
return new BoxmBlock
{
Header = header,
AllPossibleBlockPaths = pathList
};
}
public VerbBlock Read(ScummBlockHeader header, ScummBinaryReader reader)
{
//var bytes = reader.ReadBytes(100).Select(x => (char) x);
List<VerbBlock.VerbEntry> verbEntries = new List<VerbBlock.VerbEntry>();
while (true)
{
var verb = reader.ReadByte();
if (verb == 0)
break;
verbEntries.Add(new VerbBlock.VerbEntry
{
Verb = verb,
Offset = reader.ReadUInt16()
});
}
uint endIndex = header.ContentLength;
foreach (var verb in verbEntries.OrderByDescending(x => x.Offset))
{
verb.Length = endIndex - (verb.Offset - 8);
verb.Content = reader.ReadBytes((int)verb.Length);
endIndex = (uint)(verb.Offset - 8);
}
var result = new VerbBlock
{
Header = header,
VerbEntries = verbEntries
};
return result;
}
public TrnsBlock Read(ScummBlockHeader header, ScummBinaryReader reader)
{
return new TrnsBlock
{
Header = header,
Content = reader.ReadBytes((int)header.ContentLength)
};
}
public ScummBlockHeader ReadBlockHeader()
{
var result = new ScummBlockHeader
{
HeaderName = ReadHeaderName(),
ContentLength = ReadContentLength()
};
return result;
}
public RmhdBlock Read(ScummBlockHeader header, ScummBinaryReader reader)
{
return new RmhdBlock
{
Header = header,
Width = reader.ReadUInt16(),
Height = reader.ReadUInt16(),
NumObjects = reader.ReadUInt16(),
};
}
public RoomBlock Read(ScummBlockHeader header, ScummBinaryReader reader)
{
var result = new RoomBlock
{
Header = header
};
long endIndex = reader.BaseStream.Position + result.Header.ContentLength;
while (reader.BaseStream.Position < endIndex)
{
var childHeader = reader.ReadBlockHeader();
switch (childHeader.HeaderName)
{
case "RMHD":
if (result.RoomHeader != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.RoomHeader = new RoomHeaderReader().Read(childHeader, reader);
break;
case "EPAL":
if (result.EgaPalette != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.EgaPalette = new EgaPaletteReader().Read(childHeader, reader);
break;
case "CLUT":
if (result.Clut != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.Clut = new ClutReader().Read(childHeader, reader);
break;
case "CYCL":
if (result.ColorCycle != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.ColorCycle = new ColorCycleReader().Read(childHeader, reader);
break;
case "TRNS":
if (result.Transparent != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.Transparent = new TransparentReader().Read(childHeader, reader);
break;
case "PALS":
if (result.Palette != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.Palette = new PaletteReader().Read(childHeader, reader);
break;
case "RMIM":
if (result.RoomImage != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.RoomImage = new RoomImageReader().Read(childHeader, reader);
break;
case "OBIM":
result.ObjImages.Add(new ObjImageReader().Read(childHeader, reader));
break;
case "OBCD":
result.ObjectScripts.Add(new ObjectScriptReader().Read(childHeader, reader));
break;
case "EXCD":
if (result.ExitScript != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.ExitScript = new ExitScriptReader().Read(childHeader, reader);
break;
case "ENCD":
if (result.EntryScript != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.EntryScript = new EntryScriptReader().Read(childHeader, reader);
break;
case "NLSC":
if (result.NumScripts != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.NumScripts = new NumScriptsReader().Read(childHeader, reader);
break;
case "LSCR":
result.LocalScripts.Add(new LocalScriptReader().Read(childHeader, reader));
break;
case "BOXD":
if (result.BoxData != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.BoxData = new BoxDataReader().Read(childHeader, reader);
break;
case "BOXM":
if (result.BoxMatrix != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.BoxMatrix = new BoxMatrixReader().Read(childHeader, reader);
break;
case "SCAL":
if (result.ScaleSlots != null) throw new DuplicateBlockException(childHeader.HeaderName);
result.ScaleSlots = new ScaleSlotsReader().Read(childHeader, reader);
break;
default:
throw new UnexpectedRoomBlockException(childHeader.HeaderName);
}
}
return result;
}