public bool AddMultiStroke(MultiStroke multiStroke)
{
// Create the xml node to add to the xml file
XmlElement rootElement = multiStrokeLibrary.DocumentElement;
XmlElement multiStrokeNode = multiStrokeLibrary.CreateElement("multistroke");
multiStrokeNode.SetAttribute("name", multiStroke.Name);
foreach (MultiStrokePoint m in multiStroke.Points)
{
XmlElement multiStrokePoint = multiStrokeLibrary.CreateElement("point");
multiStrokePoint.SetAttribute("x", m.Point.x.ToString());
multiStrokePoint.SetAttribute("y", m.Point.y.ToString());
multiStrokePoint.SetAttribute("id", m.StrokeID.ToString());
multiStrokeNode.AppendChild(multiStrokePoint);
}
// Append the node to xml file contents
rootElement.AppendChild(multiStrokeNode);
try {
// Add the new gesture to the list of gestures
this.Library.Add(multiStroke);
// Save the file if it is not the web player, because
// web player cannot have write permissions.
#if !UNITY_WEBPLAYER && !UNITY_EDITOR
FileTools.Write(persistentLibraryPath, multiStrokeLibrary.OuterXml);
#elif !UNITY_WEBPLAYER && UNITY_EDITOR
FileTools.Write(resourcesPath, multiStrokeLibrary.OuterXml);
#endif
return(true);
} catch (Exception e) {
Debug.Log(e.Message);
return(false);
}
}
public bool AddMultiStroke(MultiStroke multiStroke)
{
// Create the xml node to add to the xml file
XmlElement rootElement = multiStrokeLibrary.DocumentElement;
XmlElement multiStrokeNode = multiStrokeLibrary.CreateElement("multistroke");
multiStrokeNode.SetAttribute("name", multiStroke.Name);
foreach (MultiStrokePoint m in multiStroke.Points) {
XmlElement multiStrokePoint = multiStrokeLibrary.CreateElement("point");
multiStrokePoint.SetAttribute("x", m.Point.x.ToString());
multiStrokePoint.SetAttribute("y", m.Point.y.ToString());
multiStrokePoint.SetAttribute("id", m.StrokeID.ToString());
multiStrokeNode.AppendChild(multiStrokePoint);
}
// Append the node to xml file contents
rootElement.AppendChild(multiStrokeNode);
try {
// Add the new gesture to the list of gestures
this.Library.Add(multiStroke);
// Save the file if it is not the web player, because
// web player cannot have write permissions.
#if !UNITY_WEBPLAYER && !UNITY_EDITOR
FileTools.Write(persistentLibraryPath, multiStrokeLibrary.OuterXml);
#elif !UNITY_WEBPLAYER && UNITY_EDITOR
FileTools.Write(resourcesPath, multiStrokeLibrary.OuterXml);
#endif
return true;
} catch (Exception e) {
Debug.Log(e.Message);
return false;
}
}
public void LoadLibrary()
{
// Uses the XML file in resources folder if it is webplayer or the editor.
string xmlContents = "";
string floatSeparator = CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator;
#if !UNITY_WEBPLAYER && !UNITY_EDITOR
xmlContents = FileTools.Read(persistentLibraryPath);
#else
xmlContents = Resources.Load <TextAsset>(libraryName).text;
#endif
multiStrokeLibrary.LoadXml(xmlContents);
// Get "gesture" elements
XmlNodeList xmlMultiStrokeList = multiStrokeLibrary.GetElementsByTagName("multistroke");
// Parse "gesture" elements and add them to library
foreach (XmlNode xmlMultiStrokeNode in xmlMultiStrokeList)
{
string multiStrokeName = xmlMultiStrokeNode.Attributes.GetNamedItem("name").Value;
XmlNodeList xmlPoints = xmlMultiStrokeNode.ChildNodes;
List <MultiStrokePoint> multiStrokePoints = new List <MultiStrokePoint>();
foreach (XmlNode point in xmlPoints)
{
float x = (float)System.Convert.ToDouble(point.Attributes.GetNamedItem("x").Value.Replace(",", floatSeparator).Replace(".", floatSeparator));
float y = (float)System.Convert.ToDouble(point.Attributes.GetNamedItem("y").Value.Replace(",", floatSeparator).Replace(".", floatSeparator));
int multiStrokeID = (int)System.Convert.ToDouble(point.Attributes.GetNamedItem("id").Value);
multiStrokePoints.Add(new MultiStrokePoint(x, y, multiStrokeID));
}
MultiStroke multiStroke = new MultiStroke(multiStrokePoints.ToArray(), multiStrokeName);
library.Add(multiStroke);
}
}
/// <summary>
/// Add multistroke to the library
/// </summary>
public void AddMultiStroke()
{
multiStroke = new MultiStroke(multiStrokePoints.ToArray(), newMultiStrokeName.text);
ml.AddMultiStroke(multiStroke);
SetMessage(newMultiStrokeName.text + " has been added to the library");
}
/// <summary>
/// Recognize drawn gesture
/// </summary>
void Recognize()
{
if (multiStrokePoints.Count > minimumPointsToRecognize) {
multiStroke = new MultiStroke(multiStrokePoints.ToArray());
result = multiStroke.Recognize(ml);
isRecognized = true;
SetMessage("MultiStroke is recognized as <color=#ff0000>'" + result.Name + "'</color> with a score of " + result.Score);
}
}
// Track user input and fire OnRecognition event when necessary.
void Update()
{
// Track user input if GestureRecognition is enabled.
if (isEnabled) {
// If it is a touch device, get the touch position
// if it is not, get the mouse position
if (Utility.IsTouchDevice()) {
if (Input.touchCount > 0) {
virtualKeyPosition = new Vector3(Input.GetTouch(0).position.x, Input.GetTouch(0).position.y);
}
} else {
if (Input.GetMouseButton(0)) {
virtualKeyPosition = new Vector3(Input.mousePosition.x, Input.mousePosition.y);
}
}
// It is not necessary to track the touch from this point on,
// because it is already registered, and GetMouseButton event
// also fires on touch devices
if (Input.GetMouseButtonDown(0)) {
point = Vector2.zero;
lastPoint = Vector2.zero;
AddStroke();
}
// It is not necessary to track the touch from this point on,
// because it is already registered, and GetMouseButton event
// also fires on touch devices
if (Input.GetMouseButton(0)) {
switch (gestureLimitType) {
case GestureLimitType.None:
RegisterPoint();
break;
case GestureLimitType.RectBoundsIgnore:
if (RectTransformUtility.RectangleContainsScreenPoint(gestureLimitRectBounds, virtualKeyPosition, null)) {
RegisterPoint();
}
break;
case GestureLimitType.RectBoundsClamp:
virtualKeyPosition = Utility.ClampPointToRect(virtualKeyPosition, gestureLimitRect);
RegisterPoint();
break;
}
}
// Capture the multi stroke, recognize it, fire the recognition event,
// and clear the multi stroke from the screen.
if (Input.GetMouseButtonDown(1)) {
if (multiStrokePoints.Count > minimumPointsToRecognize) {
multiStroke = new MultiStroke(multiStrokePoints.ToArray());
result = multiStroke.Recognize(ml);
if (OnRecognition != null) {
OnRecognition(result);
}
}
ClearGesture();
}
}
}
// Track user input and fire OnRecognition event when necessary.
void Update()
{
// Track user input if GestureRecognition is enabled.
if (isEnabled) {
// If it is a touch device, get the touch position
// if it is not, get the mouse position
if (Utility.IsTouchDevice()) {
if (Input.touchCount > 0) {
virtualKeyPosition = new Vector3(Input.GetTouch(0).position.x, Input.GetTouch(0).position.y);
}
} else {
if (Input.GetMouseButton(0)) {
virtualKeyPosition = new Vector3(Input.mousePosition.x, Input.mousePosition.y);
}
}
// It is not necessary to track the touch from this point on,
// because it is already registered, and GetMouseButton event
// also fires on touch devices
if (Input.GetMouseButtonDown(0)) {
point = Vector2.zero;
lastPoint = Vector2.zero;
AddStroke();
}
// It is not necessary to track the touch from this point on,
// because it is already registered, and GetMouseButton event
// also fires on touch devices
if (Input.GetMouseButton(0)) {
point = new Vector2(virtualKeyPosition.x, -virtualKeyPosition.y);
// Register this point only if the point list is empty or current point
// is far enough than the last point. This ensures that the multi stroke looks
// good on the screen. Moreover, it is good to not overpopulate the screen
// with so much points.
if (Vector2.Distance(point, lastPoint) > distanceBetweenPoints) {
multiStrokePoints.Add(new MultiStrokePoint(point.x, point.y, lastStrokeID));
lastPoint = point;
currentStrokeRenderer.SetVertexCount(++vertexCount);
currentStrokeRenderer.SetPosition(vertexCount - 1, Utility.WorldCoordinateForGesturePoint(virtualKeyPosition));
}
}
// Capture the multi stroke, recognize it, fire the recognition event,
// and clear the multi stroke from the screen.
if (Input.GetMouseButtonDown(1)) {
if (multiStrokePoints.Count > minimumPointsToRecognize) {
multiStroke = new MultiStroke(multiStrokePoints.ToArray());
result = multiStroke.Recognize(ml);
if (OnRecognition != null) {
OnRecognition(result);
}
}
ClearGesture();
}
}
}
public void LoadLibrary()
{
// Uses the XML file in resources folder if it is webplayer or the editor.
string xmlContents = "";
string floatSeparator = CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator;
#if !UNITY_WEBPLAYER && !UNITY_EDITOR
xmlContents = FileTools.Read(persistentLibraryPath);
#else
xmlContents = Resources.Load<TextAsset>(libraryName).text;
#endif
multiStrokeLibrary.LoadXml(xmlContents);
// Get "gesture" elements
XmlNodeList xmlMultiStrokeList = multiStrokeLibrary.GetElementsByTagName("multistroke");
// Parse "gesture" elements and add them to library
foreach (XmlNode xmlMultiStrokeNode in xmlMultiStrokeList) {
string multiStrokeName = xmlMultiStrokeNode.Attributes.GetNamedItem("name").Value;
XmlNodeList xmlPoints = xmlMultiStrokeNode.ChildNodes;
List<MultiStrokePoint> multiStrokePoints = new List<MultiStrokePoint>();
foreach (XmlNode point in xmlPoints) {
float x = (float)System.Convert.ToDouble(point.Attributes.GetNamedItem("x").Value.Replace(",", floatSeparator).Replace(".", floatSeparator));
float y = (float)System.Convert.ToDouble(point.Attributes.GetNamedItem("y").Value.Replace(",", floatSeparator).Replace(".", floatSeparator));
int multiStrokeID = (int)System.Convert.ToDouble(point.Attributes.GetNamedItem("id").Value);
multiStrokePoints.Add(new MultiStrokePoint(x, y, multiStrokeID));
}
MultiStroke multiStroke = new MultiStroke(multiStrokePoints.ToArray(), multiStrokeName);
library.Add(multiStroke);
}
}
void Recognize()
{
if (multiStrokePoints.Count > minimumPointsToRecognize) {
multiStroke = new MultiStroke(multiStrokePoints.ToArray());
result = multiStroke.Recognize(ml);
isRecognized = true;
message = result.Name + "; " + result.Score;
}
}
void OnGUI()
{
GUI.Box(drawArea, "Draw Area\nLeft click and drag to draw, right click or \"Recognize\" to recognize");
GUI.skin.label.fontSize = 20;
GUI.Label(new Rect(10, Screen.height - 40, 500, 50), message);
GUI.Label(new Rect(Screen.width - 340, 10, 70, 30), "Add as: ");
newMultiStrokeName = GUI.TextField(new Rect(Screen.width - 270, 10, 200, 30), newMultiStrokeName);
if (GUI.Button(new Rect(Screen.width - 60, 10, 50, 30), "Add")) {
multiStroke = new MultiStroke(multiStrokePoints.ToArray(), newMultiStrokeName);
ml.AddMultiStroke(multiStroke);
}
if (GUI.Button(new Rect(Screen.width - 260, 90, 250, 30), "Recognize")) {
Recognize();
}
if (GUI.Button(new Rect(Screen.width - 260, 50, 250, 30), "Clear")) {
ClearGesture();
}
}