From bfd44443a2df2c393412ef2e86df237e66534b4e Mon Sep 17 00:00:00 2001 From: thetaepsilon-gamedev Date: Sun, 15 Apr 2018 19:55:22 +0100 Subject: wielder.lua: fix crash in can_tool_dig_node() when unknown nodes are looked up --- wielder.lua | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/wielder.lua b/wielder.lua index 51ee278..b92176f 100644 --- a/wielder.lua +++ b/wielder.lua @@ -28,7 +28,11 @@ local can_tool_dig_node = function(nodename, toolcaps, toolname) -- diggable: boolean, can this tool dig this node at all -- time: float, time needed to dig with this tool -- wear: int, number of wear points to inflict on the item - local nodegroups = minetest.registered_nodes[nodename].groups + local nodedef = minetest.registered_nodes[nodename] + -- don't explode due to nil def in event of unknown node! + if (nodedef == nil) then return false end + + local nodegroups = nodedef.groups local diggable = minetest.get_dig_params(nodegroups, toolcaps).diggable if not diggable then -- a pickaxe can't actually dig leaves based on it's groups alone, -- cgit v1.2.3