44 lines
1.1 KiB
Lua
44 lines
1.1 KiB
Lua
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local charset = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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local function rand_str(length, seed)
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math.randomseed(seed)
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local ret = {}
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local r
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for i = 1, length do
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r = math.random(1, #charset)
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table.insert(ret, charset:sub(r, r))
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end
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return table.concat(ret)
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end
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----------------------------------------------------------------
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-- global namespaced functions
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----------------------------------------------------------------
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function logistica.load_position(pos)
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if pos.x < -30912 or pos.y < -30912 or pos.z < -30912 or
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pos.x > 30927 or pos.y > 30927 or pos.z > 30927 then return end
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if minetest.get_node_or_nil(pos) then
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return
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end
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local vm = minetest.get_voxel_manip()
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vm:read_from_map(pos, pos)
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end
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function logistica.swap_node(pos, newName)
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local node = minetest.get_node(pos)
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if node.name ~= newName then
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node.name = newName
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minetest.swap_node(pos, node)
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end
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end
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function logistica.get_network_name_for(pos)
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local p1 = rand_str(3, pos.x)
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local p2 = rand_str(3, pos.y)
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local p3 = rand_str(3, pos.z)
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return p1.."-"..p2.."-"..p3
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end
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