/// <summary>
/// Extracts all unique unit seat mappings from the script expressions of a scnr based script file.
/// </summary>
/// <param name="scnr">The scnr based script file.</param>
/// <param name="reader">The stream to read from.</param>
/// <param name="op">A lookup containing script type information.</param>
/// <returns>All unique unit seat mappings contained in the script expressions.</returns>
public static IEnumerable <UnitSeatMapping> ExtractScnrSeatMappings(ScnrScriptFile scnr, IReader reader, OpcodeLookup op)
{
ScriptTable scripts = scnr.LoadScripts(reader);
ScriptValueType typeInfo = op.GetTypeInfo("unit_seat_mapping");
// find all unique mappings
SortedDictionary <uint, UnitSeatMapping> uniqueMappings = new SortedDictionary <uint, UnitSeatMapping>();
foreach (var exp in scripts.Expressions)
{
if (exp.Opcode == typeInfo.Opcode && exp.ReturnType == typeInfo.Opcode && !exp.Value.IsNull)
{
// Calculate the index and only add it if it doesn't exist yet.
uint index = exp.Value.UintValue & 0xFFFF;
if (!uniqueMappings.ContainsKey(index))
{
uint count = (exp.Value.UintValue & 0xFFFF0000) >> 16;
string name = exp.StringValue;
UnitSeatMapping mapping = new UnitSeatMapping((short)index, (short)count, name);
uniqueMappings.Add(index, mapping);
}
}
}
return(uniqueMappings.Values);
}
private void LoadScriptFiles()
{
if (_tags != null)
{
ScriptFiles = new IScriptFile[0];
if (_buildInfo.Layouts.HasLayout("scnr"))
{
//caches are intended for 1 scenario, so only load the *real* one
ITag hs = _tags.GetGlobalTag(CharConstant.FromString("scnr"));
if (hs != null)
{
ScriptFiles = new IScriptFile[1];
ScriptFiles[0] = new ScnrScriptFile(hs, _fileNames.GetTagName(hs.Index), MetaArea, _buildInfo, StringIDs, _expander, Allocator);
}
}
}
}
