From 334de564fd3b23c7e6c5e313fca9edef3daa1d53 Mon Sep 17 00:00:00 2001
From: Vanessa Dannenberg <vanessa.e.dannenberg@gmail.com>
Date: Fri, 19 Oct 2018 16:00:05 -0400
Subject: [PATCH] fix crash

when trying to airbrush unknown nodes or nodes without palettes.
---
 init.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/init.lua b/init.lua
index 07d6864..27be3f1 100644
--- a/init.lua
+++ b/init.lua
@@ -667,7 +667,10 @@ function unifieddyes.on_airbrush(itemstack, player, pointed_thing)
 
 	local palette = nil
 	local fdir = 0
-	if def.palette == "unifieddyes_palette_extended.png" then
+	if not def or not def.palette then
+		minetest.chat_send_player(player_name, "*** That node can't be colored -- it's either undefined or has no palette.")
+		return
+	elseif def.palette == "unifieddyes_palette_extended.png" then
 		palette = "extended"
 	elseif def.palette == "unifieddyes_palette_colorwallmounted.png" then
 		palette = "wallmounted"