AncientGatewayController.lua/AncientGatewayController.lua

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local CollectionService = game:GetService("CollectionService")
local RunService = game:GetService("RunService")
local Workspace = game:GetService("Workspace")
local Players = game:GetService("Players")
local LocalPlayer = Players.LocalPlayer

local common = ReplicatedStorage.common

local hitIsYou = require(common.util.hitIsYou)

local ParticleCreator = require(common.ParticleCreator)
local SoundHelper = require(common.SoundHelper)

local root = script.Parent

local telegroup = root.telegroup
local keyslots = root.keyslots

local keysInOrder = {
	keyslots.slots.Red,
	keyslots.slots.Green,
	keyslots.slots.Blue,
}

local isOpen = false

local function destroyKeySlot(slot)
	coroutine.wrap(function()
		CollectionService:RemoveTag(slot, "floaty")
		
		ParticleCreator.Presets.explode(slot.CFrame)
		SoundHelper.playSoundAt(slot.CFrame, "magic")
		slot:Destroy()
	end)()
end

local function openPortal()
	if isOpen then return end
	isOpen = true
	local ts = game:GetService("TweenService")

	-- animate key slots exploding
	for _, slot in pairs(keysInOrder) do
		destroyKeySlot(slot)
		wait(0.3)
	end

	-- animate white sphere charging
	keyslots:Destroy()
	
	ParticleCreator.spawnParticle("vacuum", {
		cFrame = root.Portal.Part.CFrame,
		scale = root.Portal.Part.Size.Magnitude * 0.75,
		amount = 1,
		timeScale = 0.8,
    	})
	
	SoundHelper.playSoundAt(root.Portal.Part.CFrame, "portal_open", {
		delay = 0.8
	})
	
	wait(1)
	SoundHelper.playSoundAt(root.Portal.Part.CFrame, "portal_loop")
	

	-- animate portal opening explosion	
	root.Portal.Part.Mesh.Scale = Vector3.new(0,0,0)
	root.Portal.Part.Color = Color3.new(1,1,1)
	
	local OPENING_DURRATION = 0.4
	local FADE_DURRATION = 2
	
	local scaleTweenInfo = TweenInfo.new(OPENING_DURRATION, Enum.EasingStyle.Quint, Enum.EasingDirection.In)
	local colorTweenInfo = TweenInfo.new(FADE_DURRATION, Enum.EasingStyle.Quad, Enum.EasingDirection.InOut,0,false,1)
	
	ts:Create(root.Portal.Part.Mesh, scaleTweenInfo, {Scale = Vector3.new(1,1,1)}):Play()
	ts:Create(root.Portal.Part, colorTweenInfo, {Color = Color3.new(0,0,0)}):Play()
	wait(OPENING_DURRATION-0.1)

	CollectionService:AddTag(telegroup, "teleporter_group")
	SoundHelper.playSoundAt(root.Portal.Part.CFrame, "lightning")

	root.Portal.emitters.FullPart.Big:Emit(10)
	root.Portal.emitters.FullPart.Small:Emit(10)
	root.Portal.emitters.FullPart.Fast:Emit(100)
	root.Portal.emitters.HalfPart.VeryFast:Emit(20)
	root.Portal.emitters.FullPart.Big.Enabled = true
	root.Portal.emitters.FullPart.Small.Enabled = true
end

local function setupTeleportGroup()
	for k,v in pairs(telegroup:GetChildren()) do
		if v:IsA("BasePart") then
			v.Transparency = 1
		end
	end
end

return function(clientSession)
	local store = clientSession.store
	local api = clientSession.api

	root.Trigger.Touched:Connect(function(hit)
		if hitIsYou(hit) then
			local hasAllKeys = (
				clientSession:getGameFlag("hasRedKey") and
				clientSession:getGameFlag("hasGreenKey") and
				clientSession:getGameFlag("hasBlueKey")
			) or RunService:IsStudio()
			
			if hasAllKeys then
				openPortal()
			end
		end
	end)
		
	root.Trigger.Transparency = 1

	setupTeleportGroup()
end