From c2bedc3816a0c6a3a96b5803bd910b32c09c4f2c Mon Sep 17 00:00:00 2001
From: Jordan Irwin <antumdeluge@gmail.com>
Date: Mon, 23 Apr 2018 22:45:05 -0700
Subject: [PATCH] [creatures] Make sure that 'self.last_node' not 'nil' (#22)

---
 creatures/functions.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/creatures/functions.lua b/creatures/functions.lua
index 178bbce..794ea08 100644
--- a/creatures/functions.lua
+++ b/creatures/functions.lua
@@ -480,7 +480,7 @@ creatures.on_step = function(self, dtime)
     local sn = core.get_node_or_nil(p)
     local eat_node
     for _,name in pairs(nodes) do
-      if name == self.last_node.name then
+      if self.last_node ~= nil and name == self.last_node.name then
         eat_node = current_pos
         break
       elseif sn and sn.name == name then