Can anyone help me with this camera changing thing?

Here is a section of code. I need the game to be able to figure out if the player is either walking or climbing, but I don't really know what to put there. Please help.

local player = game.Players.LocalPlayer
walking = 
climbing = 

player.AutoJumpEnabled = false

if walking = false and climbing = false then
	player.CameraMode = LockFirstPesron
	
end
else
	player.CameraMode = Classic
end

Also here is the rest of the code for reference. Flying (Camera Change)

local player = game.Players.LocalPlayer
walking = true
climbing = true
number = script.Parent.Camera.di.Value
wait(1)
print("beep")
wait(1)
print("beep")
wait(1)
print("beep")
wait(1)
print("beep")
wait(1)
print("beep")
walking = false
climbing = false

player.AutoJumpEnabled = false



if walking == false then
	if climbing == false then
	player.CameraMode = Enum.CameraMode.LockFirstPerson
	print('done')
	number.Value = 0 -- This is another error
end
else
	player.CameraMode = Enum.CameraMode.Classic
	number.Value = 40 --This is another error,again
	end

Camera

x = script.Fov.Value
y = script.di.Value
local offset = Vector3.new(y,y,y)
local fieldOfView = x


local player = game.Players.LocalPlayer
local camera = game.Workspace.CurrentCamera
local runService = game:GetService('RunService')
local character = player.Character or player.CharacterAdded:wait()
 
camera.FieldOfView = fieldOfView
 
local function onRenderStep()
	local playerPosition = character.Head.Position
	local cameraPosition = playerPosition + offset
	camera.CoordinateFrame = CFrame.new(cameraPosition, playerPosition)
end
 
runService:BindToRenderStep('Camera', Enum.RenderPriority.Camera.Value, onRenderStep)

Controls

local player = game.Players.LocalPlayer
local gyro = nil
local mouse = player:GetMouse()
mouse.TargetFilter = game.Workspace.Level
local runService = game:GetService('RunService')
local character = player.Character or player.CharacterAdded:wait()
 
local function onCharacterAdded(character)
	local head = character:WaitForChild('Head')
	gyro = Instance.new('BodyGyro')
	gyro.P = 50000
	gyro.MaxTorque = Vector3.new(0, 10000, 0)
	gyro.Parent = head
 
	local humanoid = character:WaitForChild('Humanoid')
	humanoid:SetStateEnabled(Enum.HumanoidStateType.Jumping, false)
	humanoid:SetStateEnabled(Enum.HumanoidStateType.Climbing, true)
end
 
local function isnan(x) return x ~= x end
 
local function onRenderStep()
	if gyro then
		local mouseHit = mouse.Hit.p
		if not (isnan(mouseHit.X) or isnan(mouseHit.Y) or isnan(mouseHit.Z)) then
			gyro.CFrame = CFrame.new(character.Head.Position, mouseHit)
		end
	end
end
 
while not player.Character do wait() end
onCharacterAdded(player.Character)
player.CharacterAdded:connect(onCharacterAdded)
 
runService:BindToRenderStep('TrackMouse', Enum.RenderPriority.Input.Value, onRenderStep)