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wielder.lua: fix crash in can_tool_dig_node() when unknown nodes are looked up

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thetaepsilon-gamedev 2018-04-15 19:55:22 +01:00
parent cb5530c6c8
commit bfd44443a2
1 changed files with 5 additions and 1 deletions
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6
wielder.lua
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@ -28,7 +28,11 @@ local can_tool_dig_node = function(nodename, toolcaps, toolname)
-- diggable: boolean, can this tool dig this node at all -- diggable: boolean, can this tool dig this node at all
-- time: float, time needed to dig with this tool -- time: float, time needed to dig with this tool
-- wear: int, number of wear points to inflict on the item -- 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 local diggable = minetest.get_dig_params(nodegroups, toolcaps).diggable
if not diggable then if not diggable then
-- a pickaxe can't actually dig leaves based on it's groups alone, -- a pickaxe can't actually dig leaves based on it's groups alone,