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-rw-r--r--travelnet/travelnet.lua4
1 files changed, 3 insertions, 1 deletions
diff --git a/travelnet/travelnet.lua b/travelnet/travelnet.lua
index 56cbf35..9fba7fe 100644
--- a/travelnet/travelnet.lua
+++ b/travelnet/travelnet.lua
@@ -74,7 +74,9 @@ minetest.register_node("travelnet:travelnet", {
on_place = function(itemstack, placer, pointed_thing)
local pos = pointed_thing.above;
- if( minetest.get_node({x=pos.x, y=pos.y+1, z=pos.z}).name ~= "air" ) then
+ local def = minetest.registered_nodes[
+ minetest.get_node({x=pos.x, y=pos.y+1, z=pos.z}).name]
+ if not def or not def.buildable_to then
minetest.chat_send_player( placer:get_player_name(), S('Not enough vertical space to place the travelnet box!'))
return;