From 70894fe1a7df26d42bb945f03323dc553ad8e9db Mon Sep 17 00:00:00 2001
From: imjp94 <imjp_94@hotmail.com>
Date: Sat, 1 May 2021 15:13:25 +0800
Subject: [PATCH] Fix switching between local/remote StateMachinePlayer when
 playing scene cause null exception

---
 addons/imjp94.yafsm/scenes/StateMachineEditor.gd | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/addons/imjp94.yafsm/scenes/StateMachineEditor.gd b/addons/imjp94.yafsm/scenes/StateMachineEditor.gd
index 14963c7..766f421 100644
--- a/addons/imjp94.yafsm/scenes/StateMachineEditor.gd
+++ b/addons/imjp94.yafsm/scenes/StateMachineEditor.gd
@@ -103,6 +103,11 @@ func _process(delta):
 		set_debug_mode(false)
 		return
 	var stack = state_machine_player.get("Members/StackPlayer.gd/stack")
+	if not stack:
+		set_process(false)
+		set_debug_mode(false)
+		return
+
 	if stack.size() == 1:
 		set_current_state(state_machine_player.get("Members/StackPlayer.gd/current"))
 	else: