From: BlockMen <nmuelll@web.de>
Date: Fri, 11 Apr 2014 19:38:16 +0000 (+0200)
Subject: Fix crash when teleporting near unknown node
X-Git-Tag: 0.4.10~195
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=fefec8cdc44b7fe32754053bac02c18cfe5a22f7;p=oweals%2Fminetest.git

Fix crash when teleporting near unknown node
---

diff --git a/builtin/chatcommands.lua b/builtin/chatcommands.lua
index 03c278d4d..f8df83d8e 100644
--- a/builtin/chatcommands.lua
+++ b/builtin/chatcommands.lua
@@ -261,9 +261,12 @@ minetest.register_chatcommand("teleport", {
 			}
 			for _, d in ipairs(tries) do
 				local p = {x = pos.x+d.x, y = pos.y+d.y, z = pos.z+d.z}
-				local n = minetest.get_node(p)
-				if not minetest.registered_nodes[n.name].walkable then
-					return p, true
+				local n = minetest.get_node_or_nil(p)
+				if n and n.name then
+					local def = minetest.registered_nodes[n.name]
+					if def and not def.walkable then
+						return p, true
+					end
 				end
 			end
 			return pos, false