What is a debounce?

What is a debounce?

A debounce is a few lines of code that prevent a certain thing from running too much within a period of time. Normally, these are put in to prevent too many changes from happening at once.

For example:

local debounce = false
local part = game.Workspace.Part

part.Touched:connect(function(hit)
    if not debounce then
        debounce = true
        print("I've been touched!")
        wait(5)
        debounce = false
    end
end

You can change game.Workspace.Part to whatever block you want. And your Touched function doesn't need to be printing something. The normal output would be something like: I've been touched! I've been touched! I've been touched! I've been touched! I've been touched! without any pause in between each print, so it clogs up the console.

But with debounce, it should look something more like this: I've been touched!..... I've been touched! with a 5 second pause in between each print.

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CB8QFjAAahUKEwj12sKwtZ3HAhUGEpIKHYRQBMA&url=http%3A%2F%2Fwiki.roblox.com%2Findex.php%3Ftitle%3DDebounce&ei=ggXIVfWRF4akyASEoZGADA&usg=AFQjCNFQF6tnlOjSI49vTOZpfZhVt5Bxzw&bvm=bv.99804247,d.aWw

roblox wiki over debounces

otherTeleporter = script.Parent.TeleporterB

function teleport(hit)
    p = game.Players:GetPlayerFromCharacter(hit.Parent)
    if p then
        if p.Character then
            if p.Character.Humanoid.Health < 0 then
                p.Character.Torso.CFrame = otherTeleport.CFrame + Vector3.new(0,3.5,0)
            end
        end
    end
end

script.Parent.Touched:connect(teleport)

A debouncer is commonly used to prevent functions, or snippets of code, from being run too many times at once. For example, with a two-way teleporter, if there was no debounce, you would be stuck in an unescapable teleport loop.

The snippet above is a working teleporter script. But there's one problem: There's no debouncer! It would cause an infinite teleport loop, and the function would be called much too many times.

We need to fix that with a debouncer.

otherTeleporter = script.Parent.TeleporterB
debounce = false -- The debouncer

function teleport(hit)
    if debounce == false then -- Make sure debounce is false
        debounce = true -- Set debounce to true
        p = game.Players:GetPlayerFromCharacter(hit.Parent)
        if p then
            if p.Character then
                if p.Character.Humanoid.Health < 0 then
                    p.Character.Torso.CFrame = otherTeleport.CFrame + Vector3.new(0,3.5,0)
                end
            end
        end
        wait(2) -- Give player time to step off teleporter
        debounce = false -- Allow the teleporter to teleport another player
    end
end

script.Parent.Touched:connect(teleport)

That's how you use debouncers. Yay! We now have a working teleporter, that will teleport players (and NPC's) anywhere TeleporterB is located. Now all we need to do is make Teleporter B teleport back, but remember the debouncer.

A debounce is a stopper essentially after a certain constraint met. Its usually used by a local value outside the function changed inside the function to stop a loop example

local reached = false
num = 0
want = 20
while true do
wait(1)
If num ~= want then
num = num +1
end
If num == want then
reached = true break
end
end