Roblox Script Generated by ScripterAI

"Can we improve this script by making the camera zoom directly to the camerapart when the player presses Z?"

-- Yes, we can improve the script by removing the while loop that gradually changes the camera's field of view and instead directly set the camera's field of view to the desired value. We can also directly set the camera's position to the camera part's position when zooming in.

-- Local script 
local player = game.Players.LocalPlayer
local UserInputService = game:GetService("UserInputService")
local camera = workspace.CurrentCamera
local zoomedIn = false
local defaultFieldOfView = 70
local zoomedFieldOfView = 20
local zoomOffset = Vector3.new(0, 3.5, 0) -- this is the offset value when zoomed in

-- Create an invisible part for the camera to follow
local cameraPart = Instance.new("Part")
cameraPart.Transparency = 1
cameraPart.CanCollide = false
cameraPart.Anchored = true
cameraPart.Parent = workspace

-- Wait for the player's character to load
local character = player.CharacterAdded:Wait()
-- Wait for the HumanoidRootPart to load
local humanoidRootPart = character:WaitForChild("HumanoidRootPart")

-- Set the initial position of the camera part
cameraPart.Position = humanoidRootPart.Position + zoomOffset

UserInputService.InputBegan:Connect(function(input)
	if input.KeyCode == Enum.KeyCode.Z then
		if zoomedIn then
			camera.FieldOfView = defaultFieldOfView
			camera.CameraSubject = character.Humanoid -- set the camera to follow the player
			zoomedIn = false
		else
			camera.FieldOfView = zoomedFieldOfView
			cameraPart.Position = humanoidRootPart.Position + zoomOffset
			cameraPart.CFrame = CFrame.new(cameraPart.Position, humanoidRootPart.Position) -- make the camera part look at the player
			camera.CameraSubject = cameraPart -- set the camera to follow the camera part
			zoomedIn = true
		end
	end
end)