public override IEnumerator <RST> Run(Sandbox sb)
{
var attribs = sb.AttribManager.TakeAttribs();
// Skip if chance doesn't fall within range
if (attribs.Chance < 100 && sb.RNG.NextDouble(0, 100) > attribs.Chance)
{
yield break;
}
int next = -1;
int reps = attribs.RepEach ? _elements.Count : attribs.Repetitions;
var block = new BlockState(reps, attribs);
double weightSum = _constantWeightSum;
if (attribs.Start != null)
{
yield return(attribs.Start);
}
if (_weighted && attribs.Sync == null)
{
if (_dynamicWeights != null)
{
foreach (var dw in _dynamicWeights)
{
sb.AddOutputWriter();
yield return(dw.Item2);
string strWeight = sb.Return().Main;
if (string.IsNullOrEmpty(strWeight))
{
_weights[dw.Item1] = 0.0;
}
else if (!Util.ParseDouble(strWeight, out _weights[dw.Item1]))
{
throw new RantRuntimeException(sb, dw.Item2.Location,
GetString("err-runtime-invalid-dynamic-weight", strWeight));
}
weightSum += _weights[dw.Item1];
}
}
}
if (attribs.Sync?.Index == 0 && attribs.StartIndex >= 0)
{
attribs.Sync.Index = attribs.StartIndex;
}
sb.Blocks.Push(block);
for (int i = 0; i < reps; i++)
{
if (i == 0 && attribs.StartIndex >= 0 && attribs.Sync == null)
{
next = attribs.StartIndex > _count ? _count - 1 : attribs.StartIndex;
}
else if (_weighted)
{
double choice = sb.RNG.NextDouble(weightSum);
for (int j = 0; j < _count; j++)
{
if (choice < _weights[j])
{
next = j;
break;
}
choice -= _weights[j];
}
}
else
{
next = attribs.NextIndex(_count, sb.RNG);
}
if (next == -1)
{
break;
}
block.Next(next); // Set next block index
sb.Blocks.Pop(); // Don't allow separator to access block state
// Separator
if (i > 0 && attribs.Separator != null)
{
if (attribs.IsSeries)
{
// Check if we're on the last separator in a series
if (i == reps - 1)
{
// Add the oxford comma if specified
if (attribs.EndSeparator != null)
{
if (reps > 2)
{
yield return(attribs.EndSeparator);
}
}
sb.Print(sb.Format.WritingSystem.Space);
// Add conjunction if specified (it normally should be, if it's a series)
if (attribs.EndConjunction != null)
{
yield return(attribs.EndConjunction);
sb.Print(sb.Format.WritingSystem.Space);
}
}
else if (reps > 2)
{
yield return(attribs.Separator);
sb.Print(sb.Format.WritingSystem.Space);
}
}
else
{
yield return(attribs.Separator);
}
}
sb.Blocks.Push(block); // Now put it back
// Prefix
if (attribs.Before != null)
{
yield return(attribs.Before);
}
// Content
// Redirect output if requested
if (attribs.Redirect != null)
{
sb.AddOutputWriter();
}
sb.Objects.EnterScope();
yield return(_elements[next]);
sb.Objects.ExitScope();
// Retrieve redirected output
if (attribs.Redirect != null)
{
sb.PushRedirectedOutput();
yield return(attribs.Redirect);
sb.PopRedirectedOutput();
}
// Affix
if (attribs.After != null)
{
yield return(attribs.After);
}
}
sb.Blocks.Pop();
if (attribs.End != null)
{
yield return(attribs.End);
}
}
public override IEnumerator <RantAction> Run(Sandbox sb)
{
var attribs = sb.NextAttribs(this);
// Skip if chance doesn't fall within range
if (attribs.Chance < 100 && sb.RNG.NextDouble(0, 100) > attribs.Chance)
{
yield break;
}
int next = -1;
int reps = attribs.RepEach ? _items.Count : attribs.Repetitions;
var block = new BlockState(attribs.Repetitions);
double weightSum = _constantWeightSum;
if (attribs.Start != null)
{
yield return(attribs.Start);
}
if (_weighted && attribs.Sync == null)
{
foreach (var dw in _dynamicWeights)
{
sb.AddOutputWriter();
yield return(dw.Item2);
var strWeight = sb.Return().Main;
if (!Double.TryParse(strWeight, out _weights[dw.Item1]))
{
throw new RantRuntimeException(sb.Pattern, dw.Item2.Range,
$"Dynamic weight returned invalid weight value: '{strWeight}'");
}
weightSum += _weights[dw.Item1];
}
}
sb.Blocks.Push(block);
for (int i = 0; i < reps; i++)
{
if (_weighted)
{
double choice = sb.RNG.NextDouble(weightSum);
for (int j = 0; j < _count; j++)
{
if (choice < _weights[j])
{
next = j;
break;
}
choice -= _weights[j];
}
}
else
{
next = attribs.NextIndex(_count, sb.RNG);
}
if (next == -1)
{
break;
}
block.Next(next);
sb.Blocks.Pop(); // Don't allow separator to access block state
// Separator
if (i > 0 && attribs.Separator != null)
{
if (attribs.IsSeries)
{
// Check if we're on the last separator in a series
if (i == reps - 1)
{
// Add the oxford comma if specified
if (attribs.EndSeparator != null)
{
// If there are more than two items, print it!
if (reps > 2)
{
yield return(attribs.EndSeparator);
}
}
sb.Print(sb.Format.StandardSpace);
// Add conjunction if specified (it normally should be, if it's a series)
if (attribs.EndConjunction != null)
{
yield return(attribs.EndConjunction);
sb.Print(sb.Format.StandardSpace);
}
}
else if (reps > 2)
{
yield return(attribs.Separator);
sb.Print(sb.Format.StandardSpace);
}
}
else
{
yield return(attribs.Separator);
}
}
sb.Blocks.Push(block); // Now put it back
// Prefix
if (attribs.Before != null)
{
yield return(attribs.Before);
}
// Content
sb.Objects.EnterScope();
yield return(_items[next]);
sb.Objects.ExitScope();
// Affix
if (attribs.After != null)
{
yield return(attribs.After);
}
}
sb.Blocks.Pop();
if (attribs.End != null)
{
yield return(attribs.End);
}
}