Fly script | Roblox Exploiting

local humanoid = game:GetService("Players").LocalPlayer.Character.Humanoid
    if humanoid.RigType == Enum.HumanoidRigType.R15 then
       game:GetService('Players').LocalPlayer.Character.Humanoid.Name = "Humanoida"
    repeat wait()
       until game:GetService"Players".LocalPlayer and game:GetService"Players".LocalPlayer.Character and game:GetService"Players".LocalPlayer.Character:findFirstChild("UpperTorso") and game:GetService"Players".LocalPlayer.Character:findFirstChild("Humanoida")
    local mouse = game:GetService"Players".LocalPlayer:GetMouse()
    repeat wait() until mouse
       local plr   = game:GetService"Players".LocalPlayer
       local torso = plr.Character.UpperTorso
    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 = 100
    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()
       plr.Character.Humanoida.PlatformStand = true
    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:GetService("Workspace").CurrentCamera.CoordinateFrame.lookVector * (ctrl.f+ctrl.b)) + ((game:GetService("Workspace").CurrentCamera.CoordinateFrame * CFrame.new(ctrl.l+ctrl.r,(ctrl.f+ctrl.b)*.2,0).p) - game:GetService("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:GetService("Workspace").CurrentCamera.CoordinateFrame.lookVector * (lastctrl.f+lastctrl.b)) + ((game:GetService("Workspace").CurrentCamera.CoordinateFrame * CFrame.new(lastctrl.l+lastctrl.r,(lastctrl.f+lastctrl.b)*.2,0).p) - game:GetService("Workspace").CurrentCamera.CoordinateFrame.p))*speed
    else
    bv.velocity = Vector3.new(0,0.1,0)
    end
    bg.cframe = game:GetService("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()
    plr.Character.Humanoida.PlatformStand = false
    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()
    else
     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()
    plr.Character.Humanoid.PlatformStand = true
    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()
    plr.Character.Humanoid.PlatformStand = false
    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()
    end
    end)