private ResolvedValue GetRefValue(string refName, Cache cache, string parent, IResolver resolver, IFormatter formatter = null)
{
if (refName.Length > 1 && refName[0] == '~')
{
refName = refName.Substring(1);
}
string fullRefName = parent + "." + refName;
Entity refAttrib;
try
{
refAttrib = resolver.FindEntity(fullRefName);
var refValue = new ResolvedValue(fullRefName, refAttrib.Type, refAttrib.Value);
try
{
resolver.Resolve(refValue, cache);
}
catch (Exception e)
{
throw new Exception($"references unresolvable attribute '{refName}': {e.Message}");
}
return(refValue);
}
catch (Exception)
{
// Allow an unknown attribute if it's in the cache (might be a temporary attribute created by a mod)
try
{
return(cache.GetValue(fullRefName));
}
catch
{
// do nothing
}
if (formatter != null)
{
// Might be a complete entity rather than an attribute
Entity refEntity;
try
{
refEntity = resolver.FindEntity(refName);
// The value is the entity in JSON format
string strValue = formatter.EntityToJson(refEntity, cache);
var refValue = new ResolvedValue("", Entity.Types.OBJ, strValue);
refValue.SetValue(strValue);
return(refValue);
}
catch (Exception)
{
throw new Exception($"references unknown attribute or entity '{refName}'");
}
}
throw new Exception($"references unknown attribute '{refName}'");
}
}
/// <summary>
/// Sample function
///
/// The sample function has a circular dependency on the resolver (so we can
/// have samples based on the gender of other fields which may not be resolved
/// yet) so we have to pass the resolver in as a parameter.
/// </summary>
public string FuncSample(string called, string[] args, Cache cache, string parent, IResolver resolver,
out Sample.Genders gender)
{
string help = "Use func.sample(--help) for help.";
if (args.Length == 1 && args[0].Equals("--help", StringComparison.CurrentCultureIgnoreCase))
{
// Show usage
string usage = "Usage: func.sample(arg1, [arg2]) where arg1 is the name of the samples file to use and arg2 is " +
"either another attribute to take the gender from, or M or F to use a fixed gender.";
throw new Exception(usage);
}
if (args.Length < 1 || args.Length > 2)
{
throw new Exception($"{called} has bad number of arguments. {help}");
}
if (args[0].Length == 0)
{
throw new Exception($"{called} has empty argument. {help}");
}
gender = Sample.Genders.NEUTRAL;
if (args.Length == 2)
{
if (args[1].Equals("M", StringComparison.CurrentCultureIgnoreCase))
{
gender = Sample.Genders.MALE;
}
else if (args[1].Equals("F", StringComparison.CurrentCultureIgnoreCase))
{
gender = Sample.Genders.FEMALE;
}
else
{
// Inherit gender from referenced attribute.
string refName;
if (args[1].Length > 1 && args[1][0] == '~')
{
refName = parent + "." + args[1].Substring(1);
}
else
{
refName = parent + "." + args[1];
}
Entity refAttrib;
try
{
refAttrib = resolver.FindEntity(refName);
}
catch (Exception)
{
throw new Exception($"{called} references unknown attribute '{refName}'");
}
var refValue = new ResolvedValue(refName, refAttrib.Type, refAttrib.Value);
try
{
resolver.Resolve(refValue, cache);
}
catch (Exception e)
{
throw new Exception($"{called} references unresolvable attribute '{refName}': {e.Message}");
}
gender = refValue.Gender;
}
}
var samples = resolver.GetSamples(args[0]);
var sample = samples.Pick(gender);
gender = sample.Gender;
return(sample.Value);
}