How to Make a Part Slide with CFrame

This tutorial will guide you through the basics of making a part slide using its CFrame property.

Setting the variables

First we define the variables of the code. Use local variables to speed up indexing.

local timing = {
    opening = 1, -- Time the door takes to open.
    open = 3,    -- Time the door stays open
    closing = 1  -- Time the door takes to close
}

local steps = 10 -- How smooth the animation of the part sliding is. The higher, the smoother.

local closed = true -- Variable to make sure it can't be opened while it is opening. Basically a 'debounce'.
local part = script.Parent          -- The part to slide.
local movement = Vector3.new(5, 0, 0) -- Total movement between when door is open and closed

Opening the door

We define the function Open() so that we can have multiple events pointing to it. We need to do two loops- One closing, and one opening. Note that we used Debounce.

function Open()
    if closed then
        closed = false
        local initialCF = part.CFrame
        local step = 1/steps
        
        for i = 0, 1, step do --We will run a loop iterating from 0 to 1 in `Steps` steps.
            wait(step * timing.opening)
            part.CFrame = initialCF + movement*i
        end
        
        wait(timing.open)
        
        for i = 1, 0, -step do --We will run a loop iterating from 1 to 0 in `Steps` steps.
            wait(step * timing.closing)
            part.CFrame = initialCF + movement*i
        end
        closed = true
    end
end

Binding it to a MouseClick event

Now we need to connect a function to the MouseClick event of some ClickDetectors. We are going to loop through the parent model so that we can catch all buttons. Make sure the Part you make that has a ClickDetector in it is named Button for the sake of this tutorial.

for _, child in pairs(script.Parent:GetChildren()) do
    if child.Name == "Button" then -- Change Button to the name of what needs to be clicked to slide the part.
        child.ClickDetector.MouseClick:connect(Open)
    end
end

Complete script

And now, this is what we get if we combine the script:

local timing = {
    opening = 1, -- Time the door takes to open.
    open = 3,    -- Time the door stays open
    closing = 1  -- Time the door takes to close
}
          
local steps = 10 -- How smooth the animation of the part sliding is. The higher, the smoother.

local closed = true -- Variable to make sure it can't be opened while it is opening. Basically a 'debounce'.
local part = script.Parent          -- The part to slide.
local movement = Vector3.new(5, 0, 0) -- Total movement between when door is open and closed

function Open()
    if closed then
        closed = false
        local initialCF = part.CFrame
        local step = 1/steps
        
        for i = 0, 1, step do --We will run a loop iterating from 0 to 1 in `Steps` steps.
            wait(step * timing.opening)
            part.CFrame = initialCF + movement*i
        end
        
        wait(timing.open)

        for i = 1, 0, -step do --We will run a loop iterating from 1 to 0 in `Steps` steps.
            wait(step * timing.closing)
            part.CFrame = initialCF + movement*i
        end
        closed = true
    end
end
for _, child in pairs(script.Parent:GetChildren()) do
    if child.Name == "Button" then -- Change Button to the name of what needs to be clicked to slide the part.
        child.ClickDetector.MouseClick:connect(Open)
    end
end