Direction Freeze After Jump?

Recently I've made a game that has a style similar to 2006 - 2010 ROBLOX. I want to make the games jump look similar to Super Nostalgia Zones jump where when they jump, their direction freezes, but they can still jump forward. Here is the jumping script, I just need it to freeze direction on jump and falling. Thanks!

function waitForChild(parent, childName)
    local child = parent:findFirstChild(childName)
    if child then return child end
    while true do
        child = parent.ChildAdded:wait()
        if child.Name==childName then return child end
    end
end

-- ANIMATION

-- declarations

local Figure = script.Parent
local Torso = waitForChild(Figure, "Torso")
local RightShoulder = waitForChild(Torso, "Right Shoulder")
local LeftShoulder = waitForChild(Torso, "Left Shoulder")
local RightHip = waitForChild(Torso, "Right Hip")
local LeftHip = waitForChild(Torso, "Left Hip")
local Neck = waitForChild(Torso, "Neck")
local Humanoid = waitForChild(Figure, "Humanoid")
local pose = "Standing"

local toolAnim = "None"
local toolAnimTime = 0

-- functions

function onRunning(speed)
    if speed>0 then
        pose = "Running"
    else
        pose = "Standing"
    end
end

function onDied()
    pose = "Dead"
end

function onJumping()
    pose = "Jumping"
end

function onClimbing()
    pose = "Climbing"
end

function onGettingUp()
    pose = "GettingUp"
end

function onFreeFall()
    pose = "FreeFall"
end

function onFallingDown()
    pose = "FallingDown"
end

function onSeated()
    pose = "Seated"
end

function onPlatformStanding()
    pose = "PlatformStanding"
end

function moveJump()
    RightShoulder.MaxVelocity = 0.1
    LeftShoulder.MaxVelocity = 0.1
    RightShoulder.DesiredAngle = 3.14
    LeftShoulder.DesiredAngle = -3.14
    RightHip.DesiredAngle = 0
    LeftHip.DesiredAngle = 0
end


-- same as jump for now

function moveFreeFall()
    RightShoulder.MaxVelocity = 0.2
    LeftShoulder.MaxVelocity = 0.2
    RightShoulder.DesiredAngle = 3.14
    LeftShoulder.DesiredAngle = -3.14
    RightHip.DesiredAngle = 0
    LeftHip.DesiredAngle = 0
end

Please help soon! D: