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Fix crash when placing cable plates (#534)

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All coordinates can be equal if pointed_thing.above is identical
to pointed_thing.under.
This commit is contained in:
coil 2020-03-15 12:27:36 -04:00 committed by GitHub
parent fbc4cc8511
commit 0e10e8360d
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1 changed files with 2 additions and 2 deletions
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technic/machines/register/cables.lua
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@ -215,7 +215,7 @@ function technic.register_cable(tier, size)
if i == 1 then if i == 1 then
def.on_place = function(itemstack, placer, pointed_thing) def.on_place = function(itemstack, placer, pointed_thing)
local pointed_thing_diff = vector.subtract(pointed_thing.above, pointed_thing.under) local pointed_thing_diff = vector.subtract(pointed_thing.above, pointed_thing.under)
local num local num = 1
local changed local changed
for k, v in pairs(pointed_thing_diff) do for k, v in pairs(pointed_thing_diff) do
if v ~= 0 then if v ~= 0 then
@ -225,7 +225,7 @@ function technic.register_cable(tier, size)
end end
end end
local crtl = placer:get_player_control() local crtl = placer:get_player_control()
if (crtl.aux1 or crtl.sneak) and not (crtl.aux1 and crtl.sneak) then if (crtl.aux1 or crtl.sneak) and not (crtl.aux1 and crtl.sneak) and changed then
local fine_pointed = minetest.pointed_thing_to_face_pos(placer, pointed_thing) local fine_pointed = minetest.pointed_thing_to_face_pos(placer, pointed_thing)
fine_pointed = vector.subtract(fine_pointed, pointed_thing.above) fine_pointed = vector.subtract(fine_pointed, pointed_thing.above)
fine_pointed[changed] = nil fine_pointed[changed] = nil