How do you round up/down to one decimal?
Hello there,
I am wondering how you could round up/down values to one decimal? This is my script for a progress bar showing how many percentages you have completed in an obstacle course so far.
--// Variables
local Players = game:GetService("Players")
local Player = Players.LocalPlayer
local Leaderstats = Player:WaitForChild("leaderstats")
local ProgressText = script.Parent
local MaxStages = 101 -- Whatever my current highest stage is.
--// Progress Percentage Function
while wait() do
ProgressText.Text = ("Progress: "..Leaderstats.Stage.Value*100/MaxStages.." %")
end
This works fine, although depending on how many stages I do have, I'll get an absurd amount of decimals. So I am wondering how you could round up/down the value to only give the player one decimal?
I would love to see an example of what I could do? Thank you.
1 answer
Let's say you have the number 45.45783, and you are trying to round it to 45.5:
You would move the decimal place to the right one time by multiplying it by 10.
local number = 45.45783 local newNumber = 45.45783 * 10 -- 454.5783
Then add .5 to it, because 0 - 4 rounds down, and 5 - 9 rounds up
local anotherNumber = newNumber + 0.5 -- 455.0783
Now just do math.floor:
local flooredNumber = math.floor(anotherNumber) -- 455
Then, divided it 10 to go back the original decimal place.
local roundedNumber = flooredNumber/10 -- 45.5
Here is all the codes combined:
local number = 45.45783 local roundedNumber = (math.floor((number * 10) + 0.5))/10
To put that in your situation:
local stageNumber = Leaderstats.Stage.Value/MaxStages ProgressText.Text = "Progress: " .. ((math.floor((stageNumber * 10) + 0.5))/10) .. "%"
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