So I'm trying to create a little something and I have looked all over the place looking for ways of generating a random number. However no matter where I test my code, it results in a non-random number. Here is an example I wrote up.
local lowdrops = {"Wooden Sword","Wooden Bow","Ion Thruster Machine Gun Blaster"}
local meddrops = {}
local highdrops = {}
function randomLoot(lootCategory)
if lootCategory == low then
print(lowdrops[math.random(3)])
end
if lootCategory == medium then
end
if lootCategory == high then
end
end
randomLoot(low)
Wherever I test my code I get the same result. For example when I test the code here http://www.lua.org/cgi-bin/demo it always ends up with the "Ion Thruster Machine Gun Blaster" and doesen't randomize. For that matter testing simply
random = math.random (10)
print(random)
gives me 9, is there something i'm missing?
You need to run math.randomseed() once before using math.random(), like this:
math.randomseed(os.time())
One possible problem is that the first number may not be so "randomized" in some platforms. So a better solution is to pop some random number before using them for real:
math.randomseed(os.time())
math.random(); math.random(); math.random()
Reference: Lua Math Library
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