This script is kind of annoying, mainly because I can't figure out how to make it a loop. Help?

Hello, I am having trouble making loops. Mainly because I do not fully understand them, and how they work. Help me, please.

This is how I want the loop to be but just as a onTouched, instead of a click.

script.Parent.ClickDetector.MouseClick:Connect(function()
    for i = 0, 1, .1 do
        game.Workspace.WoodlogWB.WoodP.Transparency = 1 - i  
        wait(0.1)
    end

    game.Workspace.WoodlogWB.WoodP.CanCollide = true
end)

This is the script I want to become a loop, not infinite loop, just a loop for 10 times going down.

function onTouched()
    game.Workspace.StepBlock.White2.Transparency = 0.9
    wait(0.1)
    game.Workspace.StepBlock.White2.Transparency = 0.8   
    wait(0.1)
    game.Workspace.StepBlock.White2.Transparency = 0.7
    wait(0.1)
    game.Workspace.StepBlock.White2.Transparency = 0.6
    wait(0.1)
    game.Workspace.StepBlock.White2.Transparency = 0.5
    wait(0.1)
    game.Workspace.StepBlock.White2.Transparency = 0.4   
    wait(0.1)
    game.Workspace.StepBlock.White2.Transparency = 0.3
    wait(0.1)
    game.Workspace.StepBlock.White2.Transparency = 0.2
    wait(0.1)
    game.Workspace.StepBlock.White2.Transparency = 0.1
    wait(0.1)
    game.Workspace.StepBlock.White2.Transparency = 0
    wait(0.1)
    game.Workspace.StepBlock.White2.CanCollide = true
end

script.Parent.Touched:Connect(onTouched)

The for-loop in the first code block is known as a numerical for-loop. This allows you to run the same code a number of times (looping the same code).

#####It's basic form looks like:

for startpoint = 0, endpoint, increment do
	--code
end

startpoint is a variable where the loop will start at. endpoint is a value that the loop will count towards and reach. increment is the value which the loop will add to the startpoint to get to the endpoint all while running the code. In this type of for-loop, you could utilize the startpoint variable to change properties that require these values.

#####If I wanted to print numbers 1-10 with 1 as an increment it would look like:

for i = 1, 10, 1 do
	print("Number: "..i)
end

--or:
for i = 1, 10 do
	print("Number: "..i)
end

--both print:
-->1
-->2
-->3

In the second example above, notice how I gave no increment of 1? That's because it isn't needed unless you specify it. If you don't provide one, the loop will have the increment be 1.

Another useful thing about numerical for-loops is being able to 'count down'. We do this by making the increment a negative value. The startpoint must also greater than the endpoint for it to reach it:

for i = 10, 1, -0.5 do
	print("Number: "..i)
end

-->10
-->9.5
-->9.0
-->...and so on

That's probably how basic I can get with numerical for-loops for you. You can see more about them on this Roblox article or this Lua manual article

##Back to your question:

You already correctly use a numerical for-loop in your first code block so I'm assuming it isn't your code. The same can easily be done to the second code without needing to copy the same line of code a number of times.

local partTouch = script.Parent

local white2 = partTouch:FindFirstChild("White2")

local function onPartTouch()
	for i = 1, 0, -0.1 do
		White2.Transparency = i
		wait(.1)
	end
	White2.CanCollide = false
end

partTouch.Touched:Connect(onPartTouch)

The above makes the part White2 turn from transparent to fully visible. You should see that the numerical loop adds '-0.1' to 1 until it reaches 0 at a wait interval of .1 second.

In the code I also assume 'StepBlock' is actually script.Parent so make sure that's correctly defined.

####Edit: Added line 10 to finished code. White2 has it's collision set to false only after the transparency loop is finished.

Basically a loop is a thing that repeats itself multiple times what it does is replicate your code and executes it through a loop which behaves exactly as you want it to

You just use script.Parent to get the wood thing and put this inside the touched thing and that's it if you're making a obby it works great for that

I'll help you just tell me which code you want it for but here's a little template

--wood is your thing as a variable it's white2 block I think

for i = 1,0,-.1 do
wood.Transparency = i
end

--this puts your thing on opaque to transparent always just minus it to make it work for any value