Don't know how to make my table randomly chosen How do I code this right?
I've been working on a thing to randomly pick a image and well.. I know some people have done that with tables or I think they have.. I tried..
Table = {"Link","Link","Link"} -- Table was made.
while true do - Loop to refresh the script.
if script.Parent.Parent.Visible == true then -- script is in a ImageLabel the parent to that is a frame.
if script.Parent.Image == "" then -- Script is in an ImageLabel. Makes sure this doesn't overwrite the current image.
script.Parent.Image = "" .. Table{} -- How would I make this randomly pick a "Link" from my table? I tried this. Table{#}
end
end
end
1 answer
Lua provides a single neat way to do things randomly. That is the
math.random( low, high ) -- inclusive
function. It generates a random number between (and including) low and high.
So how can we generate values from a table if we can only make numbers?
We randomly pick which value we use by assigning them each a number. Specifically, we assign the 1st element 1, the 2nd element 2, etc.
Lua, of course, does this for us:
list = {5, 9, 2}
print(list[1], list[2], list[3])
-- 5 9 2
So, to generate a random element from the above list, it would be sufficient to generate a random number 1 to 3:
print(list[ math.random(1, 3) ]) -- 5 -- 9 -- 2 -- (randomly)
Maybe we don't know ahead of time how many things are in list. Then we just plug in the length of list, which we denote by #list:
print( list[ math.random( 1, #list ) ] )
In your case, we have a list of URLs, so the use of this will look something like
gui.Image = assets[ math.random( 1, #assets ) ]
Remember to use good variable names! Table is a meaningless name that does not inform us why you made it or what it might be. Good code will read almost like English!
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