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Add check for unknown nodes. 

* Check if node has a definition table before attempting to evaluate its
  attributes.
* Define local variable to cache multiple accesses to `registered_nodes[]`
  and improve readability.
new_mapgen_api
kabou 2022-03-09 02:15:33 +01:00
parent 4a1b93bbfa
commit 95cfa43483
1 changed files with 2 additions and 1 deletions
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3
mods/ENTITIES/mobs_mc/blaze.lua
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@ -189,9 +189,10 @@ mobs:register_arrow("mobs_mc:blaze_fireball", {
local v = vector.normalize(self.object:get_velocity())
local crashpos = vector.subtract(pos, v)
local crashnode = minetest.get_node(crashpos)
local cndef = minetest.registered_nodes[crashnode.name]
-- Set fire if node is air, or a replacable flammable node (e.g. a plant)
if crashnode.name == "air" or
(minetest.registered_nodes[crashnode.name].buildable_to and minetest.get_item_group(crashnode.name, "flammable") >= 1) then
(cndef and cndef.buildable_to and minetest.get_item_group(crashnode.name, "flammable") >= 1) then
minetest.set_node(crashpos, {name = mobs_mc.items.fire})
end
end