Fly roblox script

--[[
     Fly (Fixed)
     By: WeAreDevs
     Modded By: OpenGamerTips

     Keybinds:
     'E' to toggle flight.
]]--

repeat wait() until game.Players.LocalPlayer and game.Players.LocalPlayer.Character and game.Players.LocalPlayer.Character:findFirstChild("Torso") and game.Players.LocalPlayer.Character:findFirstChild("Humanoid")
local mouse = game.Players.LocalPlayer:GetMouse()
repeat wait() until mouse
  local plr = game.Players.LocalPlayer
  local torso = plr.Character.Torso
  local flying = true
  local deb = true
  local ctrl = {f = 0, b = 0, l = 0, r = 0}
  local lastctrl = {f = 0, b = 0, l = 0, r = 0}
  local maxspeed = 50
  local speed = 0

  function Fly()
    local bg = Instance.new("BodyGyro", torso)
    bg.P = 9e4
    bg.maxTorque = Vector3.new(9e9, 9e9, 9e9)
    bg.cframe = torso.CFrame
    local bv = Instance.new("BodyVelocity", torso)
    bv.velocity = Vector3.new(0,0.1,0)
    bv.maxForce = Vector3.new(9e9, 9e9, 9e9)
    repeat wait()
      if ctrl.l + ctrl.r ~= 0 or ctrl.f + ctrl.b ~= 0 then
        speed = speed+.5+(speed/maxspeed)
        if speed > maxspeed then
          speed = maxspeed
        end
      elseif not (ctrl.l + ctrl.r ~= 0 or ctrl.f + ctrl.b ~= 0) and speed ~= 0 then
        speed = speed-1
        if speed < 0 then
          speed = 0
        end
      end
      if (ctrl.l + ctrl.r) ~= 0 or (ctrl.f + ctrl.b) ~= 0 then
        bv.velocity = ((game.Workspace.CurrentCamera.CoordinateFrame.lookVector * (ctrl.f+ctrl.b)) + ((game.Workspace.CurrentCamera.CoordinateFrame * CFrame.new(ctrl.l+ctrl.r,(ctrl.f+ctrl.b)*.2,0).p) - game.Workspace.CurrentCamera.CoordinateFrame.p))*speed
        lastctrl = {f = ctrl.f, b = ctrl.b, l = ctrl.l, r = ctrl.r}
      elseif (ctrl.l + ctrl.r) == 0 and (ctrl.f + ctrl.b) == 0 and speed ~= 0 then
        bv.velocity = ((game.Workspace.CurrentCamera.CoordinateFrame.lookVector * (lastctrl.f+lastctrl.b)) + ((game.Workspace.CurrentCamera.CoordinateFrame * CFrame.new(lastctrl.l+lastctrl.r,(lastctrl.f+lastctrl.b)*.2,0).p) - game.Workspace.CurrentCamera.CoordinateFrame.p))*speed
      else
        bv.velocity = Vector3.new(0,0.1,0)
      end
      bg.cframe = game.Workspace.CurrentCamera.CoordinateFrame * CFrame.Angles(-math.rad((ctrl.f+ctrl.b)*50*speed/maxspeed),0,0)
    until not flying
    ctrl = {f = 0, b = 0, l = 0, r = 0}
    lastctrl = {f = 0, b = 0, l = 0, r = 0}
    speed = 0
    bg:Destroy()
    bv:Destroy()
  end
  mouse.KeyDown:connect(function(key)
  if key:lower() == "e" then
    if flying then flying = false
  else
    flying = true
    Fly()
  end
elseif key:lower() == "w" then
  ctrl.f = 1
elseif key:lower() == "s" then
  ctrl.b = -1
elseif key:lower() == "a" then
  ctrl.l = -1
elseif key:lower() == "d" then
  ctrl.r = 1
end
end)
mouse.KeyUp:connect(function(key)
if key:lower() == "w" then
  ctrl.f = 0
elseif key:lower() == "s" then
  ctrl.b = 0
elseif key:lower() == "a" then
  ctrl.l = 0
elseif key:lower() == "d" then
  ctrl.r = 0
end
end)
Fly()