replace lua Random implementation with usertype

res/modules/internal/random_generator.lua

@@ -1,35 +0,0 @@
-local Random = {}
-
-local M = 2 ^ 31
-local A = 1103515245
-local C = 12345
-
-function Random.randint(self)
-    self._seed = (A * self._seed + C) % M
-    return self._seed
-end
-
-function Random.random(self, a, b)
-    local num = self:randint() % M / M
-    if b then
-        return math.floor(num * (b - a + 1) + a)
-    elseif a then
-        return math.floor(num * a + 1)
-    else
-        return num
-    end
-end
-
-function Random.seed(self, number)
-    if type(number) ~= "number" then
-        error("number expected")
-    end
-    self._seed = number
-end
-
-return function(seed)
-    if seed and type(seed) ~= "number" then
-        error("number expected")
-    end
-    return setmetatable({_seed = seed or random.random(M)}, {__index = Random})
-end