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Add math library to luacontroller, and make sure to copy stuff so code can't get out of the sandbox.
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@ -195,7 +195,8 @@ local create_environment = function(pos, mem, event)
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mem = mem,
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tostring = tostring,
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tonumber = tonumber,
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string = string,
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string = tablecopy(string),
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math = tablecopy(math),
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event = event}
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end
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@ -222,6 +223,14 @@ local do_overheat = function (pos, meta)
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end
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end
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local tablecopy = function(t)
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local tnew = {}
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for key, value in pairs(t) do
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tnew[key] = value
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end
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return tnew
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end
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local load_memory = function(meta)
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return minetest.deserialize(meta:get_string("lc_memory")) or {}
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end
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