public BehaviorTree ReadData(IEnumerable <string> paths)
{
var cancelledLines = new List <string>();
var removedBehaviors = new List <string>();
var newBehaviors = new Dictionary <string, Behavior>();
foreach (var path in paths)
{
var file = new FileData
{
FileName = path,
RawLines = new List <string>(),
OriginalLines = new List <string>(),
OriginalLineNumbers = new List <int>()
};
int originalLineNumber = 0;
try
{
using (var aiConfig = File.OpenText(path))
{
while (!aiConfig.EndOfStream)
{
file.OriginalLineNumbers.Add(originalLineNumber);
var line = aiConfig.ReadLine();
var rawLine = line;
originalLineNumber++;
while (line != null && line.EndsWith(@"\\") && !aiConfig.EndOfStream)
{
line = line.Substring(0, line.Length - 2);
var newLine = aiConfig.ReadLine();
line += newLine;
rawLine += "\n" + newLine;
originalLineNumber++;
}
file.RawLines.Add(rawLine);
}
}
files.Add(file);
}
catch (System.IO.IOException)
{
// Ignore
}
}
foreach (var file in files)
{
foreach (var rawLine in file.RawLines)
{
if (rawLine.StartsWith("-"))
{
cancelledLines.Add(rawLine.Substring(1));
}
}
}
string section = "";
for (fileIndex = 0; fileIndex < files.Count; fileIndex++)
{
var file = files[fileIndex];
for (lineIndex = 0; lineIndex < file.RawLines.Count; lineIndex++)
{
var rawLine = file.RawLines[lineIndex];
var line = rawLine;
file.OriginalLines.Add(rawLine);
if (line.StartsWith("-"))
{
continue;
}
if (line.StartsWith("+"))
{
line = line.Substring(1);
}
if (cancelledLines.Contains(line))
{
continue;
}
lineTokens = LexConfig(line).ToArray();
currentTokenIndex = 0;
if (lineTokens.Length == 0)
{
continue;
}
if (CurrentToken == "[")
{
section = string.Join("", lineTokens.Select(t => t.Text));
continue;
}
string property = CurrentToken.ToLowerInvariant();
Behavior node;
switch (property)
{
case "behaviors":
if (!String.Equals(section, "[XComGame.X2AIBTBehaviorTree]",
StringComparison.InvariantCultureIgnoreCase))
{
continue;
}
EatToken("behaviors");
EatToken("=");
node = ParseBehavior();
node.RawText = rawLine;
node.FileName = file.FileName;
node.OriginalLineNumber = file.OriginalLineNumbers[file.OriginalLines.Count - 1];
file.OriginalLines[file.OriginalLines.Count - 1] = string.Format("%[{0}]", node.BehaviorName);
if (node.BehaviorName != null)
{
BT[node.Key] = node;
}
break;
case "newbehaviors":
if (!String.Equals(section, "[LW_Overhaul.UIScreenListener_Shell]",
StringComparison.InvariantCultureIgnoreCase))
{
continue;
}
EatToken("newbehaviors");
EatToken("=");
node = ParseBehavior();
node.RawText = rawLine;
node.FileName = file.FileName;
node.OriginalLineNumber = file.OriginalLineNumbers[file.OriginalLines.Count - 1];
file.OriginalLines[file.OriginalLines.Count - 1] = string.Format("%[{0}]", node.BehaviorName);
if (node.BehaviorName != null)
{
newBehaviors[node.Key] = node;
}
break;
case "behaviorremovals":
if (!String.Equals(section, "[LW_Overhaul.UIScreenListener_Shell]",
StringComparison.InvariantCultureIgnoreCase))
{
continue;
}
EatToken("behaviorremovals");
EatToken("=");
removedBehaviors.Add(CurrentToken);
EatToken();
break;
default:
continue;
}
}
}
foreach (var behaviorName in removedBehaviors)
{
BT.Remove(behaviorName);
}
foreach (var newBehavior in newBehaviors)
{
BT[newBehavior.Key] = newBehavior.Value;
}
return(new BehaviorTree(BT));
}
private Behavior ParseBehavior()
{
var node = new Behavior();
EatToken("(");
while (currentTokenIndex < lineTokens.Length)
{
int index;
switch (CurrentToken.ToLowerInvariant())
{
case "behaviorname":
EatToken();
EatToken("=");
node.BehaviorName = CurrentToken;
EatToken();
break;
case "nodetype":
EatToken();
EatToken("=");
node.NodeType = CurrentToken;
EatToken();
break;
case "child":
EatToken();
EatToken("[");
index = int.Parse(CurrentToken);
EatToken();
while (node.Child.Count < index + 1)
{
node.Child.Add("");
}
EatToken("]");
EatToken("=");
node.Child[index] = CurrentToken;
EatToken();
break;
case "param":
EatToken();
EatToken("[");
index = int.Parse(CurrentToken);
EatToken();
while (node.Param.Count < index + 1)
{
node.Param.Add("");
}
EatToken("]");
EatToken("=");
node.Param[index] = CurrentToken;
EatToken();
break;
case "intent":
EatToken();
EatToken("=");
EatToken();
break;
default:
// Unexpected token!
ParseError("field name");
EatToken();
while (currentTokenIndex < lineTokens.Length && CurrentToken != "," && CurrentToken != ")")
{
EatToken();
}
break;
}
if (CurrentToken == ")")
{
EatToken();
break;
}
EatToken(",", ")");
// Allow an optional "," before the closing ")"
if (CurrentToken == ")")
{
EatToken();
break;
}
}
return(node);
}