How do i make a random value lower than a specific number value?

Asked by

CjayPlyz 643

6 years ago

Edited 6 years ago

If you don't like reading skip to the end

So i have 3 random number

1local random1 = math.random(1,10)
2local random2 = math.random(1,10)
3local random3 = math.random() -- or math.random(0,1)

Now let's say if the value of the random3 is 0 then the value of random1 and random2 can be anywhere between 1 and 10, but if the value of random3 is 1 then the value of random2 must be lower than random1. But the value of random 1, 2 must always be between 1 and 10.

1local random3  = math.random()
2if random3 == 0 then
3    local random1 = math.random(1,10)
4    local random2 = math.random(1,10)
5else -- or else if random3 == 1 then
6    local random1 = math.random(2,10)
7    local random2 =
8end

Now the question is in line 7, how do i make the value lower than the value i get on random1, for example if i get the value of 5 on random1 then the value of random2 must be lower than 5 which means it must be between 1 and 4, i also made the random1 get a value between 2,10 because if it gets 1 then that won't work because there isn't anything lower than 1 that is higher than 1.

I mean i could do this

01local random3  = math.random()
02if random3 == 0 then
03    local random1 = math.random(1,10)
04    local random2 = math.random(1,10)
05else -- or else if random3 == 1 then
06    local random1 = math.random(2,10)
07    repeat
08        local random2 = math.random(1,9)
09    until random2 < random1
10end

it would work but if there is an alternative way other than using repeat or a long list of "if else" then i would take it. And also i need to change 2 textlabel from the 2 random values so, the current script would be like this.

01local number1 = workspace.Number1.SurfaceGui.TextLabel
02local number2 = workspace.Number2.SurfaceGui.TextLabel
03 
04local function variable ()
05    local random3  = math.random()
06    if random3 == 0 then
07        local random1 = math.random(1,10)
08        local random2 = math.random(1,10)
09        number1.Text = tostring(random1)
10        number2.Text = tostring(random2)
11    else -- or else if random3 == 1 then
12        local random1 = math.random(2,10)
13        number1.Text = tostring(random1)
14        repeat
15            local random2 = math.random(1,9)
16            number2.Text = tostring(random2)
17        until random2 < random1
18    end
19end
20 
21anyeventlistener:Connect(variable)
 View all 21 lines...

So overall the problem is.. How do i make a random value lower than another random value

Probably the longest question i made so far in scripting helpers CjayPlyz 643 — 6y

Do you need it to be a whole number, or can there be decimals? 1TheNoobestNoob 717 — 6y

^ not part of the question and totally irrelevant. User#21908 42 — 6y

Not likely, but that repeat until of yours could, in theory, go on forever. User#21908 42 — 6y

View all comments (4 more)

Not irrelevant. 1TheNoobestNoob 717 — 6y

Commented an answer after realizing I left my browser with this page open for 20 mins. Nvm. xPolarium 1388 — 6y

`math.random() -- or math.random(0,1)` It returns a number between 0 and 1, not just 0 and 1. https://www.robloxdev.com/articles/Lua-Libraries/math#random TheeDeathCaster 2368 — 6y

^ i only said what i found CjayPlyz 643 — 6y

How do i make a random value lower than a specific number value?

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