Gameplay-Edit

Assets/Scripts/GameManager.cs

@@ -0,0 +1,58 @@
+using System;
+using UnityEngine;
+
+public enum GameState
+{
+    Editing,
+    Gameplay
+}
+
+public class GameManager : MonoBehaviour
+{
+    // Static
+    private static GameManager instance;
+    
+    // Events
+    public event GameStateChangedHandler GameStateChanged;
+    public delegate void GameStateChangedHandler(GameState newState);
+
+    // Public
+    public GameState currentState { get; private set; } = GameState.Editing;
+
+    // Properties
+    public static GameManager Instance => instance;
+
+
+    // Methods
+    private void Awake()
+    {
+        if (instance != null && instance != this)
+        {
+            Destroy(gameObject);
+            return;
+        }
+        instance = this;
+    }
+
+
+    // Used by button OnClick
+    public void SetPlayState()
+    {
+        SetState(GameState.Gameplay);
+    }
+
+
+    // Use by button OnClick
+    public void SetEditState()
+    {
+        SetState(GameState.Editing);
+    }
+
+
+    public void SetState(GameState newState)
+    {
+        currentState = newState;
+
+        GameStateChanged?.Invoke(currentState);
+    }
+}