/// <summary>
/// Pre-condition: stream's file position must be at the beginning of a new section, marked with 4/8 byte ascii strings
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public static SaveSection ParseSaveSection(FileStream stream, SimCity2000Save save)
{
byte[] name = new byte[4];
stream.Read(name, 0, 4);
string sectionName = BytesToString(name);
SaveSection newSection = null;
switch (sectionName)
{
case "MISC":
newSection = new MiscSection();
break;
case "ALTM":
newSection = new AltitudeSection();
break;
case "XTER":
newSection = new TerrainSection();
break;
case "XBLD":
newSection = new BuildingSection();
break;
case "XZON":
newSection = new ZoneSection();
((ZoneSection)newSection).MiscSection = save.MiscSection;
break;
default:
newSection = new SaveSection(sectionName);
break;
}
newSection.ParseSection(stream);
return newSection;
}
public TerrainGenerator(SimCity2000Save simCity, AnvilWorld world, BuildingSource buildingSource)
{
terrain = simCity.TerrainSection;
altitude = simCity.AltitudeSection;
buildings = simCity.BuildingSection;
zones = simCity.ZoneSection;
this.world = world;
this.buildingSource = buildingSource;
seaLevel = simCity.MiscSection.SeaLevel;
}
public static SimCity2000Save ParseSaveFile(string saveFilePath)
{
SimCity2000Save newSaveObject = new SimCity2000Save();
FileStream reader = File.Open(saveFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
if (reader.Length < 8)
{
throw new SimCityParseException("Unexpectedly short file length");
}
byte[] fileMagic = new byte[4];
if (reader.Read(fileMagic, 0, 4) != 4)
{
throw new SimCityParseException("Not a valid Sim City save file");
}
// FORM
if (fileMagic[0] != 0x46 || fileMagic[1] != 0x4f || fileMagic[2] != 0x52 || fileMagic[3] != 0x4d)
{
throw new SimCityParseException("Invalid magic file identifier bytes");
}
newSaveObject.length = reader.Read4ByteInt();
// Read the Scdh header.
byte[] scdhHeader = new byte[4];
if (reader.Read(scdhHeader, 0, 4) != 4)
{
throw new SimCityParseException("Not a Sim City save file");
}
// SCDH
if (scdhHeader[0] != 0x53 || scdhHeader[1] != 0x43 || scdhHeader[2] != 0x44 || scdhHeader[3] != 0x48)
{
throw new SimCityParseException("Not a Sim City save file");
}
// Read sections
while (reader.Position < reader.Length)
{
newSaveObject.sections.Add(SectionFactory.ParseSaveSection(reader, newSaveObject));
}
reader.Close();
newSaveObject.BuildingSection.SetZoneSection(newSaveObject.ZoneSection);
newSaveObject.ZoneSection.MiscSection = newSaveObject.MiscSection;
return newSaveObject;
}
public void DiffSections(SimCity2000Save oldSave)
{
foreach (SaveSection section in sections)
{
List<SectionDifference> diffs = section.Diff(oldSave.GetSection(section.Name));
if (diffs.Count > 0)
{
Console.WriteLine(section.Name);
foreach (SectionDifference diff in diffs)
{
Console.WriteLine(string.Format("{0}\t\t{1}\t\t{2}", diff.FieldName, diff.OldValue, diff.NewValue));
}
}
}
}
