internal void WriteLookBackString(Stream s, GBXLBS lookbackstring)
{
if (_storedStringsWrite == null) //First Lookbackstring encountered, need to write version
{
_storedStringsWrite = new List <GBXString>();
s.WriteUInt(LBSVersion);
}
if (lookbackstring._content == null)
{
s.WriteUInt(lookbackstring.CollectionID);
}
else
{
var index = _storedStringsWrite.IndexOf(lookbackstring._content);
if (index < 0) // not stored, add string to stringlist, write new string
{
_storedStringsWrite.Add(lookbackstring._content);
s.WriteUInt(LBSFlag);
lookbackstring._content.WriteBack(s);
}
else //string stored, write reference
{
s.WriteUInt(((uint)index | LBSFlag) + 1);
}
}
}
public Challenge03043051(Stream s, GBXLBSContext c) : base(c, null)
{
AlwaysZero = new GBXUInt(s);
TitlePack = new GBXLBS(c);
Version = new GBXString(s);
this.LBSContext.SkipVersion();
}
public Challenge03043051(bool dummy) : base(null, null)
{
this.ChunkID = 0x03043051;
AlwaysZero = new GBXUInt(0);
TitlePack = new GBXLBS("");
TitlePack.Parent = this;
Version = new GBXString("date=2019-07-03_10_37 Svn=93842 GameVersion=3.3.0"); //Good Default
this.LBSContext.SkipVersion();
}
public GBXLBS ReadLookBackString(Stream s)
{
if (!_versionHasBeenRead)
{
var version = s.ReadUInt();
Trace.Assert(version == LBSVersion, "Unsupported Version of the LookBackString: " + version.ToString("X"));
_versionHasBeenRead = true;
}
var index = new GBXUInt(s);
uint id = index.Value;
var lbs = new GBXLBS(this);
if (id == GBXLBS.unassigned)
{
return(lbs);
}
switch (id >> 30)
{
case 0b00:
lbs.CollectionID = id;
return(lbs);
case 0b01: //no difference found
goto case 0b10;
case 0b10:
if ((id & 0x3FFF) == 0)
{
var newString = new GBXString(s);
_storedStringsRead.Add(newString);
lbs._content = newString;
}
else
{
lbs._content = _storedStringsRead[(int)(id & 0x3FFF) - 1];
}
return(lbs);
case 0b11: throw new Exception("Could not read LookBackString. Unknown Flags." + id);
default: throw new Exception("Universe is broken, have you tried turning it off and on again?");
}
}
