Say I have variables set up like so:
local Chance = IntValue.Value -- An integer from 0 to 100
local Outcome = false
Now the goal here is to change the value of Outcome to true based on whatever Chance is, where the probability that Outcome becomes true is Chance/100.
For example: Chance = 3 so the probability that Outcome becomes true is 0.03 (or 3%).
How would I even go about doing this?
This is one of my favourite topics:
local Randomness = Random.new()
local Chance = 10
local Outcome = false
local function runChance()
if Randomness:NextNumber() <= Chance/100 then
Outcome = true
else
Outcome = false
end
end
runChance()
How this works:
NextNumber() gives us a number from 0 to 1 in decimals. Any chance divided by 100 will give us what we want; so 10 percent chance would also be 10/100 which is 0.1 so what we are saying is if this random number is smaller then the chance then it works.
So if you have 100 as your chance; 100 / 100 = 1, :NextNumber() will always generate a number at 1 or below 1. The higher the number, the higher the chance basically
Hope this helped! Best of luck!
local Randomness = Random.new() local Chance = 10 local Outcome = false local function runChance() if Randomness:NextNumber() <= Chance/100 then Outcome = true else Outcome = false end end runChance()
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2 comments
I personally wouldn't want to use percentages. I would try a workaround but i am not sure what you would be using this for. If you are making a type of item drop table when a monster dies, you could use math.random with > or < for different items. This can work with alot of things. Like say on math.random 1 out of 100, you could do <= 10 that can be like 10%, not sure this helps, cant put code now
It's probability - percentages/fractions/decimals are all equivalent and the concept of weighting the chance is vital