How do i make this rolling animation so it projects you forward?

ive made a rolling animation but i dont know how to make it so it projects you (moves you) forward depending on which way your character is facing.

Code:

repeat wait() until game.Players.LocalPlayer.Character

local Player = game.Players.LocalPlayer
local Char = Player.Character
local UIS = game:GetService('UserInputService')
local Played = false


function TestAnim(input)
   if input.KeyCode == Enum.KeyCode.R and Played == false then
  Played = true
  local Anim = Instance.new('Animation')
  Anim.AnimationId = 'rbxassetid://12345678'-- fake animation id
  local PlayAnim = Char.Humanoid:LoadAnimation(Anim)
  PlayAnim:Play()
  wait(3)
  Played=false
   end
end


UIS.InputBegan:connect(TestAnim)

this script here does a rolling animation but stays at the same place, however i dont know how to make it so it plays the animation and moves you forward. I hope you understand what i mean.