How do you detect the parts ''Velocity.Magnitude'' is decelerating or accelerating?

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#1

Hi i wanna know if you can make it so you can detect if the velocity is either going higher or lower.

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#2

To detect if a part’s velocity is accelerating or decelerating, you can compare the current velocity magnitude with the velocity magnitude from the previous frame. Here’s a basic example of how you can achieve this:

-- Attach this script to the part you want to monitor
local part = script.Parent
local lastVelocityMagnitude = 0

function checkVelocity()
    local currentVelocity = part.Velocity
    local currentVelocityMagnitude = currentVelocity.Magnitude

    if currentVelocityMagnitude > lastVelocityMagnitude then
        print("Accelerating")
    elseif currentVelocityMagnitude < lastVelocityMagnitude then
        print("Decelerating")
    else
        print("Constant velocity")
    end

    lastVelocityMagnitude = currentVelocityMagnitude
end

-- Run the checkVelocity function every frame
while true do
    checkVelocity()
    wait(0.1) -- You can adjust the time interval between checks
end
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#3

The code is good, but I would recommend using task.wait, it’s less jittery.

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#4

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By the way, @dadplays1232_forum, just use BasePart.AssemblyLinearVelocity and compare it in a RunService.Heartbeat loop.

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#5

Yes But, i want it to like print decelerating if its going lower or accelerating if its going higher.

#6 
local prevVelocity = nil
while true do
    if prevVelocity and Part.AssemblyLinearVelocity.Magnitude < prevVelocity then
        print("decelerating")
    else
        print("accelerating")
    end
    prevVelocity = Part.AssemblyLinearVelocity.Magnitude
    task.wait()
end