//Room MainLocation { get; }
public bool CanRecognize(Item item, StringWords input, int start, int end)
{
//TODO eventually: Features like sight flags and ignore color codes and so on. For now...
if (TextParsing.CheckAutoCompleteText(input, item.Name, start, end) || TextParsing.CheckAutoCompleteText(input, item.Description, start, end))
{
return(true);
}
return(false);
}
public override void Execute(MOB mob, QueuedCommand command)
{
StringWords input = command.parsedCommand;
int distance = -1;
MovementUnit unit;
if (input.Segments.Length > 1)
{
TextParsing.ParseAsDistance(input, out distance, out unit, 1);
}
//TODO: finish this
}
/// <summary>
/// Attempt to parse input as a distance. Text inputs must be a number, followed by an optional unit, to be parsed as
/// a distance.
/// </summary>
/// <param name="text">Input to parse</param>
/// <param name="mob"></param>
/// <param name="distance">Distance to move, in millimeters. If -1, then parsing failed.</param>
/// <param name="startIndex">Where the distance is expected to be.</param>
/// <returns>Number of words successfully parsed. 0 if failed, up to 2 if succeeded. </returns>
public static int ParseAsDistance(StringWords text, out int distance, out MovementUnit unit, int startIndex = 0, int endIndex = 0)
{
distance = -1;
unit = MovementUnit.NoDistance;
if (startIndex >= text.Segments.Length)
{
return(0);
}
string firstWord, secondWord = null;
firstWord = text.Segments[startIndex];
if (startIndex < text.Segments.Length - 1)
{
secondWord = text.Segments[startIndex + 1];
}
int magnitude, distanceType;
if (!int.TryParse(firstWord, out magnitude))
{
if (secondWord == null || !int.TryParse(secondWord, out magnitude))
{
return(0);
}
//firstWord MUST be a valid distance enum.
if (FindAPreposition(text, typeof(Distances), out distanceType, startIndex, startIndex + 1) == -1)
{
return(0);
}
}
else
{
if (secondWord == null || FindAPreposition(text, typeof(Distances), out distanceType, startIndex + 1, startIndex + 2) == -1)
{
distanceType = (int)Distances.Default;
secondWord = null;
}
}
if (distanceType >= (int)Distances.Default)
{
distance = magnitude;
unit = distanceType == (int)Distances.Default ? MovementUnit.Unspecified :
distanceType == (int)Distances.Step ? MovementUnit.Step :
MovementUnit.NoDistance;
}
else
{
distance = (int)((magnitude * (long)distanceConversions[distanceType]) / 10);
unit = MovementUnit.Absolute;
}
return(secondWord == null ? 2 : 1);
}
public static int FindMatchingWord(StringWords text, string[] options)
{
foreach (string option in options)
{
for (int i = 0; i < text.Segments.Length; i++)
{
if (text.Segments[i].Equals(option, StringComparison.CurrentCultureIgnoreCase))
{
return(i);
}
}
}
return(-1);
}
public static List <Item> FindKnownItems(StringWords input, MOB mob, int start, int end)
{
input.ValidateEndIndex(ref end);
Item[] items = GeneralUtilities.VisibleItems(mob, mob.Body);
List <Item> matchingItems = new List <Item>();
foreach (Item item in items)
{
if (mob.CanRecognize(item, input, start, end))
{
matchingItems.Add(item);
}
}
return(matchingItems);
}
/// <summary>
/// Find the first word in an input that matches a preposition from a list of prepositions
/// </summary>
/// <param name="text">Input to search</param>
/// <param name="typeOfPreposition">Type/List of prepositions</param>
/// <param name="prepositionValue">Which preposition was found (can be cast to that preposition). -1 if no preposition found.</param>
/// <param name="startIndex">Which word in input to start searching on (inclusive). Defaults to 0 (start of input)</param>
/// <param name="endIndex">Which word in input to stop searching on (exclusive). Defaults to -1 (end of input)</param>
/// <returns>Index of the first word of the preposition</returns>
public static int FindAPreposition(StringWords text, Type typeOfPreposition, out int prepositionValue, int startIndex = 0, int endIndex = -1) //TODO: Replace typeOfPreposition for an easier-to-use type of variable. An enum of enums?
{
text.ValidateEndIndex(ref endIndex);
//Array values = Enum.GetValues(typeOfPreposition);
string[][] options = OptionsForPreposition(typeOfPreposition);
for (int i = startIndex; i < endIndex; i++)
{
int j = i;
prepositionValue = MatchString(options, text.Segments, ref j); //NOTE: This assumes enums always have default-assigned values (0, 1, 2, etc.)
if (prepositionValue != -1)
{
return(i);
}
}
prepositionValue = -1;
return(-1);
}
/// <summary>
/// Find an item that the specified mob can sense and identify from the given text input.
/// </summary>
/// <param name="input"></param>
/// <param name="mob"></param>
/// <param name="start"></param>
/// <param name="end"></param>
/// <param name="onPrompt"></param>
/// <param name="addToPrompt"></param>
/// <returns></returns>
public static Item FindKnownItem(StringWords input, MOB mob, int start, int end, SelectAction onPrompt = null, StandardHeldPrompt addToPrompt = null) //, out RoomLink viaExit
{
//viaExit = null; //TODO later: When finding items in other rooms, report what direction the item is in.
List <Item> options = FindKnownItems(input, mob, start, end);
if (options.Count == 1)
{
return(options[0]);
}
Client client = mob.Client;
if (client == null)
{
//TODO: Have an NPC say they don't know what item they were told to find?
return(null);
}
if (options.Count == 0)
{
client.sendMessage("You don't notice a '" + input.StringRange(start, end) + "'");
return(null);
}
if (onPrompt == null)
{
client.sendMessage("There are too many things that fit that description.");
return(null);
}
//TODO: Consider an alternative function to move prompt stuff to and add an out bool for prompting instead, not
//sure if there's a need for that bool right now though; leave this one without prompt stuff
//TODO: Some way to check if the prompt is still valid would be nice too, but not sure how to do that well without
// just requiring another function passed into here. Might do that anyways.
SelectFromList <Item> itemSelectPrompt = new SelectFromList <Item>(onPrompt.Invoke);
if (addToPrompt == null || !addToPrompt.TransitionTo(itemSelectPrompt, true))
{
client.Prompt(itemSelectPrompt);
}
return(null);
}
/// <summary>
/// Check if 'input' (or a specific part of it) can be found inside of 'text'.
/// </summary>
/// <param name="input">Text to search for</param>
/// <param name="text">Text to look inside for matches</param>
/// <param name="startIndex">First word of 'input' to start searching for</param>
/// <param name="endIndex">After last word of 'input' to search for (exclusive end)</param>
/// <returns>True if text contains input in the same order.</returns>
public static bool CheckAutoCompleteText(StringWords input, string text, int startIndex = 0, int endIndex = -1)
{
input.ValidateEndIndex(ref endIndex);
if (startIndex >= endIndex)
{
throw new ArgumentException("startIndex must be before endIndex");
}
int textIndex = 0;
for (int inputIndex = 0; textIndex < text.Length; textIndex++)
{
string wordToFind = input.Segments[inputIndex];
textIndex = text.IndexOf(wordToFind, textIndex);
if (textIndex == -1)
{
return(false); //Input word was not found.
}
if (textIndex != 0)
{ //Check to make sure this could reasonably be the start of a word. If not, continue at the next character.
char prevChar = text[textIndex - 1];
//TODO: Finetune below checks.
//if (!Char.IsWhiteSpace(prevChar)) continue;
if (Char.IsLetterOrDigit(prevChar))
{
continue;
}
}
//Found a match. Continue with the next word.
inputIndex++;
if (inputIndex == endIndex)
{
return(true); //No next word, found all the words.
}
textIndex += wordToFind.Length; //Skip the matched text (plus 1 character from loop counter)
}
//Ran out of letters before matching all the words.
return(false);
}
public override void Execute(MOB mob, QueuedCommand command)
{
/*
* Form is always (optional direction/distance) (optional preposition) (optional target)
* direction/distance can work alone (implies 'from here')
* if direction/distance is missing, if preposition is not specific, 'in reach' is implied
* preposition requires a target
* target can work alone (depends on target. If target defaults to enterable, implies 'in'. Else 'near')
* Search for prepositions, get a list of them.
* Validate prepositions. Need to have nothing or a valid direction/distance before preposition.
* How many can actually be possible? I think only zero or one preposition is really possible?
* TODO: Special user input to specify a preposition instead of parser guessing. Mostly goes in StringWords but
* matching prepositions/item names needs to respect that too (might work automatically).
* Some system similar to quotes probably. Quotes may be useful though, like book titles or something.
* If no prepositions, attempt to parse full string as direction/distance. If successful, do that
* //Search whole string for item/target matches and associated strings.
* In general, 'visible to MOB' items.
* Must match to end of string?
* Nevermind, this string will be identified but targets will not be searched for until a TryGoEvent is run.
* //Find associated strings that line up with a preposition
* Instead of above two major points:
* Identify all valid strings (start after preposition, go to end of string)
* TODO: Special user input to specify a string instead of parser guessing?
* This is basically implied by a preposition. However it maybe makes more sense to specify the target instead of the preposition.
* //Search all 'visible to MOB' items that exactly match any of the valid strings.
* How to pick best match?
* Maybe just not go if more than one match found, request more info. prompt?
*/
StringWords goToInput = command.parsedCommand;
//See if there's a preposition
int start = 1; //Skip command ("go")
int prepValue;
MovementPreposition prepEnum;
MovementDirection direction = null;
TryGoEvent moveEvent = new TryGoEvent();
int index = TextParsing.FindAPreposition(goToInput, typeof(MovementPreposition), out prepValue, start);
if (index != -1)
{
//Is this a valid preposition? Check if it starts correctly.
prepEnum = (MovementPreposition)prepValue;
if (!prepEnum.AllowDirection() && !prepEnum.AllowDistance())
{
if (index != start + 1)
{
//Invalid preposition for this location, needs to be at start of command.
goto noPrepositionFound;
}
}
else if ((prepEnum.RequireDirection() || prepEnum.RequireDistance()) && index == start + 1)
{
//Invalid preposition for this location, needs to come after a direction/distance.
goto noPrepositionFound;
}
else
{
direction = TextParsing.ParseAsDirection(goToInput, start, ref index, prepEnum.RequireDirection(), prepEnum.RequireDistance(), prepEnum.AllowDirection(), prepEnum.AllowDistance());
if (direction == null) //Not a valid preposition. Ignore it.
{
goto noPrepositionFound;
}
else //Maybe valid preposition.
{
//Check if preposition matches direction more closely? I think the previous checks have finished that successfully at this point.
//Valid preposition. Parse the REST of the sentence as an object.
start = index;
goto startEvent;
}
}
}
else
{
//Is the whole thing a direction?
direction = TextParsing.ParseAsDirection(goToInput, start, ref index);
if (direction != null)
{
if (direction.direction != Directions.NoDirection && index == goToInput.Segments.Length)
{
//Mark it as ONLY a direction, no destination (goToInput has been completely parsed/consumed)
goToInput = null;
//goto startEvent;
}
else
{
//Can't go only a distance with NoDirection. Cancel this parsing.
direction = null;
}
}
//Else try to parse the whole thing as an object to go to
}
//Text parsing has decided what words go to what (i.e. direction vs. target).
//Text parsing has NOT identified objects yet.
noPrepositionFound:
moveEvent.targetDescription = goToInput;
start = 1;
prepEnum = MovementPreposition.To; // null; ?
startEvent: //foundPreposition
moveEvent.targetDescriptionStart = start;
moveEvent.direction = direction;
moveEvent.relation = prepEnum;
moveEvent.SetMoveSource(mob, null);
//Raw command parsing done, target parsing has not been done.
//Run the event to try to find a path to the target.
moveEvent.FullRunEvent();
}
/// <summary>
/// Attempt to parse user's input text as a direction / distance.
/// </summary>
/// <param name="text">Full input to parse</param>
/// <param name="startIndex">Index of first word to try to parse (inclusive). </param>
/// <param name="endIndex">Index of last word to try to parse (exclusive). If the text is found, this will be updated
/// to after the last word found (first index not belonging to the MovementDirection)</param>
/// <param name="requireDirection">If true, parsing will return failure if no direction component is found.</param>
/// <param name="requireDistance">If true, parsing will return failure if no distance component is found.</param>
/// <param name="getDistance">If true, distance may be parsed. This is ignored (assumed true) if requireDistance is true.</param>
/// <returns>The direction and distance parsed from the input text.</returns>
public static MovementDirection ParseAsDirection(StringWords text, int startIndex, ref int endIndex, bool requireDirection = false, bool requireDistance = false, bool getDirection = true, bool getDistance = true)
{
text.ValidateEndIndex(ref endIndex);
getDistance |= requireDistance;
Directions foundDirection = Directions.NoDirection;
//List<Directions> directions = new List<Directions>();
KeyValuePair <string[][], Directions[]> directionOptions = DirectionCommand.GetDirectionOptions();
string[][] directionStrings = directionOptions.Key;
Directions[] directionValues = directionOptions.Value;
int foundDistance = -1;
MovementUnit foundUnit = MovementUnit.NoDistance;
int i = startIndex;
for (; i < endIndex; i++)
{
string word = text.Segments[i];
if (foundDirection == Directions.NoDirection)
{
int found = MatchString(directionStrings, text.Segments, ref i);
if (found != -1)
{
foundDirection = directionValues[found];
//Loop will increment but i is already the correct value after MatchString,
i--; //decrement here to 'skip' the increment.
continue;
}
}
if (getDistance && foundUnit == MovementUnit.NoDistance)
{
int distanceWords = ParseAsDistance(text, out foundDistance, out foundUnit, i, Math.Min(i + 1, endIndex - 1));
if (distanceWords != 0)
{
if (distanceWords == 2)
{
i++;
}
continue;
}
}
break;
}
if (foundDirection == Directions.NoDirection && requireDirection)
{
return(null);
}
if (foundUnit == MovementUnit.NoDistance && requireDistance)
{
return(null);
}
if (foundDirection == Directions.NoDirection && foundUnit == MovementUnit.NoDistance)
{
return(null);
}
endIndex = i;
return(new MovementDirection()
{
direction = foundDirection,
distanceCount = foundDistance,
distanceUnit = foundUnit
});
}