How to make a Zelda-esque camera?

Essentially I want to place the camera at a fixed point over a certain area. Then, when a player reaches a point (like an exit/entrance) the camera will move over to that new location.

Basically like this: https://youtu.be/VS00FyRwR4w?t=17

I know basic camera controls, but I don't know the steps required in order to make the camera a) positioned in that fashion and b) move in that fashion.

Something like this would probably work. Experiment and add some invisible walls that once the player hits (onTouch) moves the camera position. Slider.position = Vector3.new(0,5,0)

(make sure this is a local script in starter pack)

--ignore this--
local Player = game.Players.LocalPlayer
repeat wait() until Player.Character
local Character = Player.Character

local Cam = game.Workspace.CurrentCamera

local RunService = game:GetService('RunService')


function Prep(Char)
	local cPart = Instance.new("Part", Char)
	cPart.Name = ("CamPart")
	cPart.CanCollide = false
	cPart.Transparency = 1
	cPart.Anchored = false
	cPart.Position = Character:WaitForChild("Head").Position
	local bPos = Instance.new("BodyPosition", cPart)
	bPos.Name = ("Slider")
	bPos.maxForce = Vector3.new(math.huge, math.huge, math.huge)
	bPos.D = (2000)
	bPos.P = (10000)
	Cam.CameraType= 'Custom'
	Cam.CameraType= 'Scriptable'
end


Prep(Character)
local CamPart = Character:WaitForChild("CamPart") 
local Slider = CamPart:WaitForChild("Slider") 
local Torso = Character:WaitForChild("Torso") 

--edit this stuff--

RunService.RenderStepped:connect(function()
	Slider.position = Vector3.new(0,5,0) --change this after hitting an invisible wall
	Cam.CoordinateFrame= CFrame.new(Vector3.new(CamPart.Position.X, CamPart.Position.Y+15, CamPart.Position.Z +5),CamPart.Position)
	Torso.CFrame = CFrame.new(Vector3.new(Torso.Position.X , Torso.Position.Y, 1), Vector3.new(Mouse.Hit.X, Torso.Position.Y, Torso.Position.Z))
end)