private DialogueConsequence ParseConsequenceToken(string token)
{
//function and its parameters
List <string> openPSplit = token.Split('(', ',').ToList();
string funcName = openPSplit[0];
//get rid of trailing
for (int j = 1; j < openPSplit.Count; j++)
{
openPSplit[j] = openPSplit[j].TrimEnd(',', ')');
//remove empty
if (openPSplit[j].Length == 0)
{
openPSplit.RemoveAt(j);
j--;
}
}
if (funcName[0] == '!')
{
throw new TechnicalException("Consequences cannot be negated: " + token);
}
DialogueConsequence returned = null;
switch (openPSplit.Count)
{
case 0:
throw new TechnicalException("Can't parse " + token + ". It may be empty.");
case 1:
//no params
returned = DialogueConsequencesManager.GetDialogueConsequence(funcName);
break;
case 2:
// 1 param
returned = DialogueConsequencesManager.GetDialogueConsequence(funcName, openPSplit[1]);
break;
case 3:
// 2 params
returned = DialogueConsequencesManager.GetDialogueConsequence(funcName, openPSplit[1], openPSplit[2]);
break;
case 4:
// 3 params
returned = DialogueConsequencesManager.GetDialogueConsequence(funcName, openPSplit[1], openPSplit[2], openPSplit[3]);
break;
default:
throw new TechnicalException("Can't parse " + token + ". Possibly too many params.");
}
return(returned);
}
private DialogueConsequence ParseConsequence(string text)
{
if (text.Length == 0)
{
return(null);
}
try
{
//Simple as possible for now. No paranthesis support to group
string[] tokens = text.Split(' ');
if (tokens.Length == 0)
{
//user has entered empty condition string
return(null);
}
else if (tokens.Length == 1)
{
//just a good old single function.
return(ParseConsequenceToken(tokens[0]));
}
else if (tokens.Length % 2 == 0)
{
throw new TechnicalException("Invalid consequence expression: " + text);
}
//tokens.Length is thus at least 3.
DialogueConsequence aggregate = null;
DialogueConsequence cur = null;
aggregate = ParseConsequenceToken(tokens[0]);
for (int i = 2; i < tokens.Length; i += 2)
{
if (i % 2 == 0)
{
cur = ParseConsequenceToken(tokens[i]);
i -= 3; //we will add 2 to this and so we will get to the logic keyword.
}
else
{
//logic keyword AND OR
if (tokens[i] == "AND" || tokens[i] == "&" || tokens[i] == "&&" || tokens[i] == "+")
{
aggregate = aggregate + cur;
}
else
{
throw new TechnicalException("Unrecognized logic keyword for consequences: " + tokens[i]);
}
i += 1; // we will add 2 to this and so we will get to next token.
}
}
return(aggregate);
}
catch (Exception e)
{
ErrorHandler.ShowPureErrorMessage("Could not parse dialogue consequnce: \n" + text + "\n Error Message: \n" + e.Message);
return(null);
}
}
private void ExecuteDialogueConsequence(DialogueConsequence consequence)
{
consequence.ConsequenceExecutor(CurrentDialogueParam);
}
