public static DiceStat Parse(int entity, string label, string expression)
{
string cleanExpression = _whitespacePattern.Replace(expression.ToLower(), "");
cleanExpression = cleanExpression.Replace("+-", "-");
var parseValues = new ParseValues().Init();
var dice = new DiceStat(entity, label);
for (int i = 0; i < cleanExpression.Length; ++i)
{
char c = cleanExpression[i];
if (char.IsDigit(c))
{
parseValues.Constant += c;
}
else if (c == '*')
{
parseValues.Multiply *= int.Parse(parseValues.Constant);
parseValues.Constant = "";
}
else if (c == 'd')
{
if (parseValues.Constant == "")
{
parseValues.Constant = "1";
}
parseValues.DiceRolls = int.Parse(parseValues.Constant);
parseValues.Constant = "";
}
// else if (c == 'k') {
// string chooseAccum = "";
// while (i + 1 < cleanExpression.Length && char.IsDigit(cleanExpression[i + 1])) {
// chooseAccum += cleanExpression[i + 1];
// ++i;
// }
// parseValues.Choose = int.Parse(chooseAccum);
// }
else if (c == '+')
{
Append(dice, parseValues);
parseValues = new ParseValues().Init();
}
else if (c == '-')
{
Append(dice, parseValues);
parseValues = new ParseValues().Init();
parseValues.Multiply = -1;
}
else
{
throw new ArgumentException("Invalid character in dice expression", expression);
}
}
Append(dice, parseValues);
return(dice);
}
public void SetupEntity(Entity entity, SimpleDataLine lineData, DataEntry allData)
{
var damageStat = DiceStat.Parse(entity, Stats.Damage, lineData.Config);
if (damageStat != null)
{
entity.Get <StatsContainer>().Add(damageStat);
}
}
private static void Append(DiceStat dice, ParseValues parseValues)
{
int constant = int.Parse(parseValues.Constant);
if (parseValues.DiceRolls == 0)
{
dice.ChangeBase(parseValues.Multiply * constant);
}
else
{
dice.DiceSides = constant;
dice.DiceRolls = parseValues.DiceRolls;
dice.MultiplyResult = parseValues.Multiply;
}
}
