protected StateMachine ParseStateMachine(Actor actor)
{
string[] lines = actor.StatesText.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
var states = new List<State>();
var labels = new Dictionary<string, State>();
// non-root actors inheirit state machine from their parents
if (actor.Parent != null)
{
StateMachine parentMachine = actor.Parent.StateMachine.CloneForChild(actor.Parent.Name);
states = parentMachine.States.ToList();
labels = parentMachine.Labels.ToDictionary(p => p.Key, p => p.Value);
}
var openGoTos = new Dictionary<GoToState, KeyValuePair<string, int>>();
List<string> openLabels = new List<string>();
string lastLabel = string.Empty;
foreach (string line in lines)
{
string trimmed = line.Trim();
if (trimmed == string.Empty)
{
continue;
}
string framePattern = @"
([A-Za-z0-9_\-""#]{4,6}) # sprite name
\s+
([A-Za-z\[\]\\""#]+) # frame list
\s+
(-?\d+) # duration
(\s+bright\s+) # bright yes/no
?(.*) # code pointer
";
Match labelMatch = Regex.Match(line, "([A-Za-z0-9_.]+):", RegexOptions.IgnoreCase);
Match gotoMatch = Regex.Match(line, @"goto\s+([A-Za-z0-9_:.]+)?(\s*\+\s*(\d+))?", RegexOptions.IgnoreCase);
Match frameMatch = Regex.Match(line, framePattern, RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace);
List<State> currentLineStates = new List<State>();
if (trimmed.Equals("fail", StringComparison.OrdinalIgnoreCase))
{
currentLineStates.Add(new FailState());
}
else if (trimmed.Equals("stop", StringComparison.OrdinalIgnoreCase))
{
currentLineStates.Add(new StopState());
}
else if (trimmed.Equals("loop", StringComparison.OrdinalIgnoreCase))
{
GoToState state = new GoToState();
openGoTos.Add(state, new KeyValuePair<string, int>(lastLabel, 0));
currentLineStates.Add(state);
}
else if (trimmed.Equals("wait", StringComparison.OrdinalIgnoreCase))
{
GoToState state = new GoToState();
state.Target = states.Last();
currentLineStates.Add(state);
}
else if (gotoMatch.Success)
{
int offset = 0;
int.TryParse(gotoMatch.Groups[3].Value, out offset);
State state = new GoToState();
openGoTos.Add(state as GoToState, new KeyValuePair<string, int>(gotoMatch.Groups[1].Value.ToLower(), offset));
currentLineStates.Add(state);
}
else if (labelMatch.Success)
{
openLabels.Add(labelMatch.Groups[1].Value.ToLower());
lastLabel = labelMatch.Groups[1].Value.ToLower();
}
else if (frameMatch.Success)
{
foreach (char frame in frameMatch.Groups[2].Value.TrimQuotes())
{
FrameState newState = new FrameState()
{
Sprite = frameMatch.Groups[1].Value,
Frame = frame,
Duration = int.Parse(frameMatch.Groups[3].Value),
IsBright = frameMatch.Groups[4].Value != string.Empty,
CodePointer = frameMatch.Groups[5].Value
};
currentLineStates.Add(newState);
}
}
else
{
throw new Exception("Could not parse state line \"" + trimmed + "\" in actor \"" + actor.Name + "\" in file \"" + actor.File.FullName + "\".");
}
if (currentLineStates.Count > 0)
{
foreach (string label in openLabels)
{
labels[label] = currentLineStates[0];
}
openLabels.Clear();
}
states.AddRange(currentLineStates);
}
foreach (var openGoTo in openGoTos)
{
GoToState state = openGoTo.Key;
string targetLabel = openGoTo.Value.Key;
int offset = openGoTo.Value.Value;
State targetState = null;
if (targetLabel == string.Empty)
{
targetState = state;
}
else
{
if (!labels.ContainsKey(targetLabel))
{
throw new Exception("Jump target \"" + targetLabel + "\" not found in actor \"" + actor.Name + "\" in file \"" + actor.File.FullName + "\".");
}
targetState = labels[targetLabel];
}
int stateIndex = states.IndexOf(targetState);
Debug.Assert(stateIndex >= 0, "Goto target state not found!");
state.Target = states[stateIndex + offset];
// only FrameStates count towards the offset
int numStatesToSkip = offset;
int i = stateIndex;
state.Target = states[i];
while (numStatesToSkip >= 1)
{
i++;
state.Target = states[i];
if (state.Target.CountsAsState)
{
numStatesToSkip--;
}
}
}
return new StateMachine(states, labels);
}
protected StateMachine ParseStateMachine(Actor actor)
{
string[] lines = actor.StatesText.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
var states = new List <State>();
var labels = new Dictionary <string, State>();
// non-root actors inheirit state machine from their parents
if (actor.Parent != null)
{
StateMachine parentMachine = actor.Parent.StateMachine.CloneForChild(actor.Parent.Name);
states = parentMachine.States.ToList();
labels = parentMachine.Labels.ToDictionary(p => p.Key, p => p.Value);
}
var openGoTos = new Dictionary <GoToState, KeyValuePair <string, int> >();
List <string> openLabels = new List <string>();
string lastLabel = string.Empty;
foreach (string line in lines)
{
string trimmed = line.Trim();
if (trimmed == string.Empty)
{
continue;
}
string framePattern = @"
([A-Za-z0-9_\-""#]{4,6}) # sprite name
\s+
([A-Za-z\[\]\\""#]+) # frame list
\s+
(-?\d+) # duration
(\s+bright\s+) # bright yes/no
?(.*) # code pointer
";
Match labelMatch = Regex.Match(line, "([A-Za-z0-9_.]+):", RegexOptions.IgnoreCase);
Match gotoMatch = Regex.Match(line, @"goto\s+([A-Za-z0-9_:.]+)?(\s*\+\s*(\d+))?", RegexOptions.IgnoreCase);
Match frameMatch = Regex.Match(line, framePattern, RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace);
List <State> currentLineStates = new List <State>();
if (trimmed.Equals("fail", StringComparison.OrdinalIgnoreCase))
{
currentLineStates.Add(new FailState());
}
else if (trimmed.Equals("stop", StringComparison.OrdinalIgnoreCase))
{
currentLineStates.Add(new StopState());
}
else if (trimmed.Equals("loop", StringComparison.OrdinalIgnoreCase))
{
GoToState state = new GoToState();
openGoTos.Add(state, new KeyValuePair <string, int>(lastLabel, 0));
currentLineStates.Add(state);
}
else if (trimmed.Equals("wait", StringComparison.OrdinalIgnoreCase))
{
GoToState state = new GoToState();
state.Target = states.Last();
currentLineStates.Add(state);
}
else if (gotoMatch.Success)
{
int offset = 0;
int.TryParse(gotoMatch.Groups[3].Value, out offset);
State state = new GoToState();
openGoTos.Add(state as GoToState, new KeyValuePair <string, int>(gotoMatch.Groups[1].Value.ToLower(), offset));
currentLineStates.Add(state);
}
else if (labelMatch.Success)
{
openLabels.Add(labelMatch.Groups[1].Value.ToLower());
lastLabel = labelMatch.Groups[1].Value.ToLower();
}
else if (frameMatch.Success)
{
foreach (char frame in frameMatch.Groups[2].Value.TrimQuotes())
{
FrameState newState = new FrameState()
{
Sprite = frameMatch.Groups[1].Value,
Frame = frame,
Duration = int.Parse(frameMatch.Groups[3].Value),
IsBright = frameMatch.Groups[4].Value != string.Empty,
CodePointer = frameMatch.Groups[5].Value
};
currentLineStates.Add(newState);
}
}
else
{
throw new Exception("Could not parse state line \"" + trimmed + "\" in actor \"" + actor.Name + "\" in file \"" + actor.File.FullName + "\".");
}
if (currentLineStates.Count > 0)
{
foreach (string label in openLabels)
{
labels[label] = currentLineStates[0];
}
openLabels.Clear();
}
states.AddRange(currentLineStates);
}
foreach (var openGoTo in openGoTos)
{
GoToState state = openGoTo.Key;
string targetLabel = openGoTo.Value.Key;
int offset = openGoTo.Value.Value;
State targetState = null;
if (targetLabel == string.Empty)
{
targetState = state;
}
else
{
if (!labels.ContainsKey(targetLabel))
{
throw new Exception("Jump target \"" + targetLabel + "\" not found in actor \"" + actor.Name + "\" in file \"" + actor.File.FullName + "\".");
}
targetState = labels[targetLabel];
}
int stateIndex = states.IndexOf(targetState);
Debug.Assert(stateIndex >= 0, "Goto target state not found!");
state.Target = states[stateIndex + offset];
// only FrameStates count towards the offset
int numStatesToSkip = offset;
int i = stateIndex;
state.Target = states[i];
while (numStatesToSkip >= 1)
{
i++;
state.Target = states[i];
if (state.Target.CountsAsState)
{
numStatesToSkip--;
}
}
}
return(new StateMachine(states, labels));
}