public Interaction(TextAsset file)
{
string[] lines = Regex.Split (file.text, @"\r\n|\r|\n");
dialogueList = new List<InteractionLinkedTreeNode>();
controlList = new List<InteractionControlPath>();
name = file.name.Split ('.') [0];
int lineCounter = 1;
foreach (string line in lines)
{
// ignore empty lines and comments
if (line.Length == 0)
continue;
if (line.StartsWith("#"))
continue;
// conditional statements go here
// If the statement is true, then the line of dialogue directly below
// will be the first line of the conversation
if (line.StartsWith("if "))
{
string conditional = line.Substring("if ".Length);
InteractionControlPath ic = new InteractionControlPath();
if (conditional.IndexOf("choose ") != -1) {
string chooseStr = conditional.Substring(conditional.IndexOf("choose "));
string[] chooseParams = chooseStr.Substring("choose ".Length).Split(',');
ic.randomStart = Int32.Parse(chooseParams[0]);
ic.randomEnd = Int32.Parse(chooseParams[1]);
conditional = conditional.Substring(0, conditional.Length - chooseStr.Length);
}
ic.statement = conditional;
ic.lineNumber = lineCounter;
controlList.Add(ic);
}
else if (line.StartsWith ("choose "))
{
string[] chooseParams = line.Substring("choose ".Length).Split(',');
InteractionControlPath ic = new InteractionControlPath();
ic.randomStart = Int32.Parse(chooseParams[0]);
ic.randomEnd = Int32.Parse(chooseParams[1]);
chooseStatement = ic;
}
else // otherwise we assume it's a line of dialogue
{
InteractionTreeNode linkedNode = new InteractionLinkedTreeNode();
int lineIndex = 0;
ParseDialogueLine(line, ref linkedNode, ref lineIndex);
if (linkedNode == null)
{
throw new LineException("Bad format in line "+lineCounter+" in file "+file.name);
}
else
{
while(true)
{
if (lineIndex >= line.Length || line.IndexOf('[', lineIndex) == -1)
break;
InteractionTreeNode node = new InteractionTreeNode();
ParseDialogueLine(line, ref node, ref lineIndex);
if (node == null)
throw new LineException("Bad format for line "+lineCounter+" in file "+file.name);
else
((InteractionLinkedTreeNode)linkedNode).responses.Add(node);
}
}
dialogueList.Add((InteractionLinkedTreeNode)linkedNode);
lineCounter++;
}
}
}
private void ParseDialogueLine(string fullLine, ref InteractionTreeNode node, ref int index)
{
int lineStartInd = fullLine.IndexOf('[', index);
int lineEndInd = fullLine.IndexOf(']', lineStartInd+1);
if (lineStartInd == -1 || lineEndInd == -1)
{
node = null;
return;
}
int eventStartInd = fullLine.IndexOf('{', lineStartInd+1);
if (!(eventStartInd == -1 || eventStartInd > lineEndInd))
{
node.line = fullLine.Substring(lineStartInd+1, (eventStartInd-lineStartInd)-1);
int eventEndInd = fullLine.IndexOf ('}', eventStartInd+1);
string eventText = fullLine.Substring(eventStartInd+1, (eventEndInd-eventStartInd)-1);
string[] eventParams = eventText.Split(new char[]{','}, StringSplitOptions.RemoveEmptyEntries);
foreach (string eventParam in eventParams)
{
string[] eventArgs = eventParam.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
switch(eventArgs[0])
{
case "End":
case "end":
node.eventType |= InteractionEvents.End;
break;
case "Line":
case "line":
node.eventType |= InteractionEvents.NextLine;
node.nextLine = Int32.Parse(eventArgs[1]);
break;
case "Set":
case "set":
node.eventType |= InteractionEvents.SetConst;
node.gameConstant = eventArgs[1];
break;
case "Event":
case "event":
node.eventType |= InteractionEvents.Special;
node.gameEvent = eventArgs[1];
break;
}
}
}
else
node.line = fullLine.Substring(lineStartInd+1, (lineEndInd-lineStartInd)-1);
index = lineEndInd + 1;
}
