Add ui controller

fix duplicate gameControllers

Assets/Prefabs/GameController.prefab

@@ -1,5 +1,88 @@
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@@ -28,7 +111,8 @@ Transform:
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@@ -47,3 +131,81 @@ MonoBehaviour:
   startScene: MainMenu
   mainScene: LevelDesign
   endScene: ThanksScene
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Assets/Prefabs/Main Canvas.prefab

@@ -0,0 +1,115 @@
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Assets/Scenes/LevelDesign.unity

@@ -217,13 +217,82 @@ RectTransform:
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Assets/Scripts/GameController.cs

@@ -2,12 +2,18 @@ using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.SceneManagement;
+using UnityEngine.UI;
 
 public class GameController : MonoBehaviour
 {
     private static GameController instance;
     [SerializeField]
     private string startScene, mainScene, endScene;
+    [SerializeField]
+    private float fadeSpeed;
+    [SerializeField]
+    private Image fadeImg;
+    private Coroutine fadeCoroutine;
     public static GameController Instance{
         get{
             if(instance is null)Debug.LogError("Game controller is null");
@@ -16,28 +22,62 @@ public class GameController : MonoBehaviour
     }
 
     private void Awake() {
+        if(GameController.Instance is null){
             instance = this;
             DontDestroyOnLoad(this.gameObject);
+            SceneManager.activeSceneChanged += ChangedScene;
+        }else{
+            Destroy(this.gameObject);
         }
         
+    }
+    
+
     public void StartGame(){
-        SceneManager.LoadScene(mainScene);
+        fadeCoroutine = StartCoroutine(FadeToBlack(mainScene, true,fadeSpeed));
     }
 
     public void EndGame(){
         Debug.Log("Game is over");
-        SceneManager.LoadScene(endScene);
+        fadeCoroutine = StartCoroutine(FadeToBlack(endScene, true,fadeSpeed));
     }
 
     public void QuitGame(){
+        //fadeCoroutine = StartCoroutine(FadeToBlack(true,fadeTimer));
         Application.Quit();
     }
 
     public void Options(){
+        //fadeCoroutine = StartCoroutine(FadeToBlack(true,fadeTimer));
         Debug.Log("Clicked options");
     }
 
     public void MainMenu(){
-        SceneManager.LoadScene(startScene);
+        fadeCoroutine = StartCoroutine(FadeToBlack(startScene, true,fadeSpeed));
+    }
+
+    private void ChangedScene(Scene curr, Scene next){
+        fadeCoroutine = StartCoroutine(FadeToBlack(string.Empty, false, fadeSpeed));
+    }
+
+    public IEnumerator FadeToBlack(string sceneToLoad,bool fadeToBlack = true, float fadeSpeed = 2.5f){
+        Color imgColor = fadeImg.color;
+        float fadeAmount;
+        if(fadeToBlack){
+            while(fadeImg.color.a < 1){
+                fadeAmount = imgColor.a + (fadeSpeed * Time.deltaTime);
+                imgColor = new Color(imgColor.r, imgColor.g, imgColor.b, fadeAmount);
+                fadeImg.color = imgColor;
+                yield return null;
+            }
+            SceneManager.LoadScene(sceneToLoad);
+        }else{
+            while(fadeImg.color.a > 0){
+                fadeAmount = imgColor.a - (fadeSpeed * Time.deltaTime);
+                imgColor = new Color(imgColor.r, imgColor.g, imgColor.b, fadeAmount);
+                fadeImg.color = imgColor;
+                yield return null;
+            }
+        }
     }
 }

Assets/Scripts/UIController.cs

@@ -0,0 +1,26 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class UIController : MonoBehaviour
+{
+    public void StartGame(){
+        GameController.Instance.StartGame();
+    }
+
+    public void EndGame(){
+        GameController.Instance.EndGame();
+    }
+
+    public void QuitGame(){
+        GameController.Instance.QuitGame();
+    }
+
+    public void Options(){
+        GameController.Instance.Options();
+    }
+
+    public void MainMenu(){
+        GameController.Instance.MainMenu();
+    }
+}

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