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fix undefined node crash

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This commit is contained in:
Vanessa Ezekowitz 2014-08-24 11:51:43 -04:00
parent 42a364b818
commit bbc530a067
1 changed files with 13 additions and 10 deletions
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23
item_transport.lua
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@ -253,17 +253,20 @@ local function go_next(pos, velocity, stack)
for _, vect in ipairs(can_go) do
local npos = vector.add(pos, vect)
local node = minetest.get_node(npos)
local tubedevice = minetest.get_item_group(node.name, "tubedevice")
local tube_def = minetest.registered_nodes[node.name].tube
local tube_priority = (tube_def and tube_def.priority) or 100
if tubedevice > 0 and tube_priority >= max_priority then
if not tube_def or not tube_def.can_insert or
tube_def.can_insert(npos, node, stack, vect) then
if tube_priority > max_priority then
max_priority = tube_priority
next_positions = {}
local reg_node = minetest.registered_nodes[node.name]
if reg_node then
local tube_def = reg_node.tube
local tubedevice = minetest.get_item_group(node.name, "tubedevice")
local tube_priority = (tube_def and tube_def.priority) or 100
if tubedevice > 0 and tube_priority >= max_priority then
if not tube_def or not tube_def.can_insert or
tube_def.can_insert(npos, node, stack, vect) then
if tube_priority > max_priority then
max_priority = tube_priority
next_positions = {}
end
next_positions[#next_positions + 1] = {pos = npos, vect = vect}
end
next_positions[#next_positions + 1] = {pos = npos, vect = vect}
end
end
end