Add scene transitions

Assets/Scripts/LevelChanger.cs

@@ -0,0 +1,61 @@
+using System.Collections;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+namespace Scampz.GameJam
+{
+  public class LevelChanger : MonoBehaviour
+  {
+    public Animator animator;
+    public int sceneIndex = 0;
+
+    public static LevelChanger Singleton { get; private set; }
+
+
+    public void Update()
+    {
+      if (Input.GetMouseButtonDown(0))
+        FadeToLevel();
+    }
+
+    public void OnTriggerEnter(Collider collider)
+    {
+      FadeToLevel();
+    }
+
+    public void OnFadeComplete()
+    {
+      StartCoroutine(LoadScene(sceneIndex));
+    }
+
+    private void Awake()
+    {
+      if (Singleton is not null && Singleton != this)
+        Destroy(this);
+      else
+        Singleton = this;
+    }
+
+    private void FadeToLevel()
+    {
+      animator.SetTrigger("FadeOut");
+    }
+
+    private IEnumerator LoadScene(int levelIndex)
+    {
+
+      yield return null;
+
+      var loadSceneOperation = SceneManager.LoadSceneAsync(levelIndex);
+      loadSceneOperation.allowSceneActivation = false;
+      while (!loadSceneOperation.isDone)
+      {
+        if (loadSceneOperation.progress >= 0.9f)
+          break;
+      }
+
+      loadSceneOperation.allowSceneActivation = true;
+      yield return loadSceneOperation;
+    }
+  }
+}