Im trying to make a Disco Floor script?

Do note that this is not a requesting site, but we can show you through on how to accomplish this. First we want to start this with a loop, in this circumstance, we'll use a while loop, this loop continues looping until it's condition is nil or changed.

while condition do

while loop.

A while loop does come with some responsibilities, and consequences. First, lag. A while loop can accumulate some lag in your game if not using FE. Second, crashes. Loops can cause crashes, especially while loops, if not used without a wait() function.

while true do
wait(.5)
end

Finale

while true do
script.Parent.BrickColor = script.Parent.BrickColor.Random()
wait(.5)
end

Specialty

If you want to prevent huge lag( or copying one script at a time), I suggest using a generic loop with for as it's iterator, and a function to receive the values, pairs().

local danceparts=model:GetChildren()

while true do
for index, value in pairs(danceparts) do
value.BrickColor = value.BrickColor.Random()
wait(.5)
end
end

I modified some code for you, Enjoy!

-- Put this in the brick you want to switch colors!

while true do 
script.Parent.Color = Color3.new(math.random(), math.random(), math.random()) 
wait(2.0) 
end