private LinkCondition[] ParseCondition(string text)
{
const string haveLexem = "have";
const string notLexem = "not";
const string divider = ",";
string[] conditionTextArray = text.Split(divider.ToCharArray());
LinkCondition[] linkConditions = new LinkCondition[conditionTextArray.Length];
for (int i = 0; i < linkConditions.Length; ++i)
{
if (string.IsNullOrEmpty(conditionTextArray[i]))
{
throw new SyntaxError("missed condition between ','"); //
}
string[] tokens = conditionTextArray[i].Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
linkConditions[i] = new LinkCondition();
if (tokens.Length == 0)
{
throw new SyntaxError($"Empty condition");
}
if (!tokens[0].Equals(haveLexem))
{
throw new SyntaxError($"Expected: '{haveLexem}', found: '{tokens[0]}'");
}
if (tokens.Length == 1)
{
throw new SyntaxError($"Incorrect condition definition: expected name of the key or 'not' after 'have'");
}
if (tokens.Length == 3)
{
if (tokens[1].Equals(notLexem))
{
linkConditions[i].Type = ConditionType.HaveNot;
}
else
{
throw new SyntaxError($"Expected: '{notLexem}', found: '{tokens[0]}'");
}
}
else if (tokens.Length == 2)
{
linkConditions[i].Type = ConditionType.Have;
}
else
{
throw new SyntaxError($"Incorrect condition: {conditionTextArray[i]}");
}
int keyPosition = tokens.Length - 1;
if (!Regex.IsMatch(tokens[keyPosition], keyRegExp))
{
throw new SyntaxError($"Unacceptable key definition: {tokens[0]}");
}
MatchCollection collection = Regex.Matches(tokens[keyPosition], "[\\d]+");
foreach (Match num in collection)
{
linkConditions[i].KeyNumber = int.Parse(num.Value);
}
}
return(linkConditions);
}
public DialogLink()
{
Actions = new GameAction[0];
Conditions = new LinkCondition[0];
}