Resolve WES-127-Refactor_Themelist

Assets/MediaPipeUnity/Scripts/SignPredictor.asmdef

@@ -6,7 +6,8 @@
         "GUID:5c2b5ba89f9e74e418232e154bc5cc7a",
         "GUID:04c4d86a70aa56c55a78c61f1ab1a56d",
         "GUID:edc93f477bb73a743a97d6882ed330b3",
-        "GUID:58e104b97fb3752438ada2902a36dcbf"
+        "GUID:58e104b97fb3752438ada2902a36dcbf",
+        "GUID:7f2d0ee6dd21e1d4eb25b71b7a749d25"
     ],
     "includePlatforms": [],
     "excludePlatforms": [],

Assets/MediaPipeUnity/Scripts/SignPredictor.cs

@@ -19,9 +19,9 @@ namespace Mediapipe.Unity.Tutorial
     public class SignPredictor : MonoBehaviour
     {
         /// <summary>
-        /// Reference to the model used in the SignPredictor
+        /// ModelList, used to change model using ModelIndex
         /// </summary>
-        public NNModel model;
+        public ModelList modelList;
 
         /// <summary>
         /// Reference to the model info file
@@ -210,12 +210,22 @@ namespace Mediapipe.Unity.Tutorial
 
             // check if model exists at path
             //var model = ModelLoader.Load(Resources.Load<NNModel>("Models/Fingerspelling/model_A-L"));
-            worker = model.CreateWorker();
+            worker = modelList.GetCurrentModel().CreateWorker();
 
             StartCoroutine(SignRecognitionCoroutine());
             StartCoroutine(MediapipeCoroutine());
         }
 
+        public void ChangeModel(ModelIndex index)
+        {
+            this.modelList.SetCurrentModel(index);
+            // If a worker already existed, we throw it out
+            worker?.Dispose();
+
+            // Add a new worker for the new model
+            worker = modelList.GetCurrentModel().CreateWorker();
+        }
+
         /// <summary>
         /// Coroutine which executes the mediapipe pipeline
         /// </summary>