public override string ToString()
{
if (items.Count == 0)
{
return("0");
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < items.Count; i++)
{
DiceItem item = items[i];
if (i > 0 || item.sign < 0)
{
sb.Append(item.sign < 0 ? '-' : '+');
}
switch (item.type)
{
case DiceItem.TypeConstant: sb.Append(item.value); break;
case DiceItem.TypeRandom: sb.Append(item.times).Append('d').Append(item.value); break;
case DiceItem.TypeDamageBonus: sb.Append(item.times).Append("DB"); break;
}
}
return(sb.ToString());
}
private static bool TryParseItem(StringReader reader, out DiceItem item, bool needSign)
{
int signCount = 0;
int sign = 1;
while (reader.HasNext)
{
char ch = reader.Peek();
if (ch == '+')
{
reader.Skip();
signCount++;
}
else if (ch == '-')
{
sign *= -1;
reader.Skip();
signCount++;
}
else
{
break;
}
}
if ((needSign && signCount == 0) || !reader.HasNext)
{
item = null;
return(false);
}
int tStart = reader.Cursor;
while (reader.HasNext && char.IsDigit(reader.Peek()))
{
reader.Skip();
}
int times = tStart >= reader.Cursor ? 1 : int.Parse(reader.Data.Substring(tStart, reader.Cursor - tStart));
if (!reader.HasNext || (reader.Peek() != 'D' && reader.Peek() != 'd'))
{
item = DiceItem.Constant(sign, times);
return(true);
}
reader.Skip();
if (!reader.HasNext)
{
item = null;
return(false);
}
if (reader.Peek() == 'B' || reader.Peek() == 'b')
{
reader.Skip();
item = DiceItem.DamageBonus(sign, times);
return(true);
}
else if (char.IsDigit(reader.Peek()))
{
int vStart = reader.Cursor;
reader.Skip();
while (reader.HasNext && char.IsDigit(reader.Peek()))
{
reader.Skip();
}
int value = vStart >= reader.Cursor ? 1 : int.Parse(reader.Data.Substring(vStart, reader.Cursor - vStart));
item = DiceItem.Random(sign, value, times);
return(true);
}
else
{
item = null;
return(false);
}
}
public static int Roll(int max)
{
return(DiceItem.NextInt(Math.Max(1, max)));
}
