Allow user to enter words corresponding to symbols

Assets/JustSign/Scripts/JustSignController.cs

@@ -1,5 +1,6 @@
 using System.Collections;
 using System.Collections.Generic;
+using TMPro;
 using UnityEngine;
 using UnityEngine.UI;
 
@@ -13,6 +14,11 @@ public class JustSignController : MonoBehaviour
     /// </summary>
     public Canvas canvas;
 
+    /// <summary>
+    /// The input field where the user can type his or her answer
+    /// </summary>
+    public TMP_InputField answerField;
+
     /// <summary>
     /// All of the words that can be used in this session
     /// </summary>
@@ -63,7 +69,9 @@ public class JustSignController : MonoBehaviour
     /// </summary>
     private float lastSpawn;
 
-    // Start is called before the first frame update
+    /// <summary>
+    /// Start is called before the first frame update
+    /// </summary>
     void Start()
     {   
         themeList = ThemeLoader.LoadJson();
@@ -74,35 +82,42 @@ public class JustSignController : MonoBehaviour
         SpawnNewSymbol();
     }
 
-    // Update is called once per frame
+    /// <summary>
+    /// Update is called once per frame
+    /// </summary>
     void Update()
     {   
+        if (answerField.text.ToLower() == activeWords[0]) {
+            DestroyRightmostSymbol();
+            answerField.text = "";
+        }
+
+        if (activeSymbols[0].GetComponent<RectTransform>().localPosition.x > -trackX) {
+            DestroyRightmostSymbol();
+        }
+
         float currentTime = Time.time;
         if (currentTime - lastSpawn > 1) {
             lastSpawn = currentTime;
             SpawnNewSymbol();
         }
 
-        if (activeSymbols[0].GetComponent<RectTransform>().localPosition.x > -trackX) {
-            Debug.Log("LENGTH BEFORE:");
-            Debug.Log(activeWords.Count);
-            activeWords.RemoveAt(0);
-            Debug.Log("LENGTH AFTER:");
-            Debug.Log(activeWords.Count);
-            GameObject symbol = activeSymbols[0];
-            activeSymbols.RemoveAt(0);
-            Destroy(symbol);
-        }
-
-        //Debug.Log(activeWords.Count);
-        Debug.Log(activeWords.Count);
-
         foreach (GameObject symbol in activeSymbols) {
             RectTransform rectTransform = symbol.GetComponent<RectTransform>();
             rectTransform.localPosition = new Vector3(rectTransform.localPosition.x + Time.deltaTime * moveSpeed, trackY, 0);
         }
     }
 
+    /// <summary>
+    /// Destroy the oldest symbol on the track
+    /// </summary>
+    void DestroyRightmostSymbol() {
+        activeWords.RemoveAt(0);
+        GameObject symbol = activeSymbols[0];
+        activeSymbols.RemoveAt(0);
+        Destroy(symbol);
+    }
+
     /// <summary>
     /// Find the chosen theme by its name
     /// </summary>