From fc2713ddcde7ec1d65634534a8b038ad46942c08 Mon Sep 17 00:00:00 2001
From: Christopher <chrisgregan@gmail.com>
Date: Thu, 21 Jul 2016 16:51:10 +0100
Subject: [PATCH] Fixed dialog input causing an exception if no Event System is
 present.

---
 Assets/Fungus/Narrative/Scripts/DialogInput.cs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Assets/Fungus/Narrative/Scripts/DialogInput.cs b/Assets/Fungus/Narrative/Scripts/DialogInput.cs
index 0f85bef3..c21fb713 100644
--- a/Assets/Fungus/Narrative/Scripts/DialogInput.cs
+++ b/Assets/Fungus/Narrative/Scripts/DialogInput.cs
@@ -83,7 +83,20 @@ namespace Fungus
 		protected virtual void Update()
 		{
             if (currentStandaloneInputModule == null)
+            {
+                if (EventSystem.current == null)
+                {
+                    // Auto spawn an Event System from the prefab
+                    GameObject prefab = Resources.Load<GameObject>("EventSystem");
+                    if (prefab != null)
+                    {
+                        GameObject go = Instantiate(prefab) as GameObject;
+                        go.name = "EventSystem";
+                    }
+                }
+
                 currentStandaloneInputModule = EventSystem.current.GetComponent<StandaloneInputModule>();
+            }
 
             if (Input.GetButtonDown(currentStandaloneInputModule.submitButton) ||
                 (cancelEnabled && Input.GetButton(currentStandaloneInputModule.cancelButton)))