first push!

Assets/Scripts/Utils/UnityMainThreadDispatcher.cs

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+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+using System;
+using System.Threading.Tasks;
+public class UnityMainThreadDispatcher : MonoBehaviour {
+
+		private static readonly Queue<Action> _executionQueue = new Queue<Action>();
+
+		public void Update() {
+			lock(_executionQueue) {
+				while (_executionQueue.Count > 0) {
+					_executionQueue.Dequeue().Invoke();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Locks the queue and adds the IEnumerator to the queue
+		/// </summary>
+		/// <param name="action">IEnumerator function that will be executed from the main thread.</param>
+		public void Enqueue(IEnumerator action) {
+			lock (_executionQueue) {
+				_executionQueue.Enqueue (() => {
+					StartCoroutine (action);
+				});
+			}
+		}
+
+		/// <summary>
+		/// Locks the queue and adds the Action to the queue
+		/// </summary>
+		/// <param name="action">function that will be executed from the main thread.</param>
+		public void Enqueue(Action action)
+		{
+			Enqueue(ActionWrapper(action));
+		}
+
+		/// <summary>
+		/// Locks the queue and adds the Action to the queue, returning a Task which is completed when the action completes
+		/// </summary>
+		/// <param name="action">function that will be executed from the main thread.</param>
+		/// <returns>A Task that can be awaited until the action completes</returns>
+		public Task EnqueueAsync(Action action)
+		{
+			var tcs = new TaskCompletionSource<bool>();
+
+			void WrappedAction() {
+				try 
+				{
+					action();
+					tcs.TrySetResult(true);
+				} catch (Exception ex) 
+				{
+					tcs.TrySetException(ex);
+				}
+			}
+
+			Enqueue(ActionWrapper(WrappedAction));
+			return tcs.Task;
+		}
+
+
+		IEnumerator ActionWrapper(Action a)
+		{
+			a();
+			yield return null;
+		}
+
+
+		private static UnityMainThreadDispatcher _instance = null;
+
+		public static bool Exists() {
+			return _instance != null;
+		}
+
+		public static UnityMainThreadDispatcher Instance() {
+			if (!Exists ()) {
+				throw new Exception ("UnityMainThreadDispatcher could not find the UnityMainThreadDispatcher object. Please ensure you have added the MainThreadExecutor Prefab to your scene.");
+			}
+			return _instance;
+		}
+
+
+		void Awake() {
+			if (_instance == null) {
+				_instance = this;
+				DontDestroyOnLoad(this.gameObject);
+			}
+		}
+
+		void OnDestroy() {
+				_instance = null;
+		}
+
+
+	}