Add timer to spelling bee

Assets/Scripts/SpellingBeeController.cs

@@ -31,36 +31,65 @@ public class SpellingBeeController : MonoBehaviour {
     // The input field for testing purposes
     public TMP_InputField input;
 
+    // Current value of timer in seconds
+    private float timerValue;
+
+    // Timer display
+    public TMP_Text timerText;
+
+    // Amount of seconds user gets per letter of the current word
+    private int secondsPerLetter = 6;
+
     // Start is called before the first frame update
     void Start() {
         themeList = ThemeLoader.loadJson();
-        
         currentTheme = findThemeByName(PlayerPrefs.GetString("themeName"));
         words = currentTheme.words;
-
         SetRandomWord();
+        addSeconds(currentWord.Length * secondsPerLetter + 1);
     }
 
     // Update is called once per frame
     void Update() {        
         if (input.text.Length > 0) {
-            if (Char.ToUpper(input.text[0]) == Char.ToUpper(currentWord[currentIndex]) && input.text.Length == 1) {
-                letters[currentIndex].GetComponent<Image>().color = Color.green;
-                input.text = "";
-                currentIndex++;
+            checkChar(input.text[0]);
+        }
 
-                if (currentIndex >= currentWord.Length) {
-                    for (int i = 0; i < currentWord.Length; i++) {
-                        Destroy(letters[i]);
-                    }
+        timerValue -= Time.deltaTime;
 
-                    StartCoroutine(Wait());
-                    SetRandomWord();
+        if (timerValue <= 0.0f)
+        {
+            timerValue = 0.0f;
+            // Handle end of timer
+        }
+
+        int minutes = Mathf.FloorToInt(timerValue / 60.0f);
+        int seconds = Mathf.FloorToInt(timerValue % 60.0f);
+
+        timerText.text = string.Format("{0:00}:{1:00}", minutes, seconds);
+    }
+
+    void checkChar(char letter) {
+        if (Char.ToUpper(letter) == Char.ToUpper(currentWord[currentIndex]) && input.text.Length == 1) {
+            letters[currentIndex].GetComponent<Image>().color = Color.green;
+            input.text = "";
+            currentIndex++;
+
+            if (currentIndex >= currentWord.Length) {
+                for (int i = 0; i < currentWord.Length; i++) {
+                    Destroy(letters[i]);
                 }
+
+                StartCoroutine(Wait());
+                SetRandomWord();
             }
         }
     }
 
+    void addSeconds(int seconds) {
+        timerValue += (float) seconds;
+    }
+
     Theme findThemeByName(string themeName) {
         int themeIndex = 0;
 
@@ -87,6 +116,7 @@ public class SpellingBeeController : MonoBehaviour {
         currentWord = randomWord;
         changeSprite(randomWord);
         displayWord(randomWord);
+        addSeconds(currentWord.Length * secondsPerLetter + 1);
     }
 
     // Displays the word that needs to be spelled