What Do You Need?

We need region3

What is a Region3?

Region3 is a data type that describes a volume in 3D space similar to an axis-aligned rectangular prism. It is commonly used with Terrain functions and functions that detect parts within a volume, such as Workspace:FindPartsInRegion3

How can you use a Region3

In a region3 you can detect if certain objects are within the volume of the region. Here's a short script demonstrating how it functions, keep in mind this is not related to your car script.

Make an empty baseplate, then make a big part that has a rich volume area, set the parts can-collide attribute to false, and make the parts transparency = 0.6

Name it something that differentiates to the other instances parented to the workspace.

Make a LocalScript parented to the StarterPlayerScripts Folder. We'll make a script that detects if a player is within the region.

local Region = Region3.new(Vector3Min, Vector3Max)

What's this? This creates a new region including to parameters; "Minimum Vector, Max Vector" But...

This does not reference the Region you inserted?? Let me show you how

local RegionPart = game.Workspace.Part
local Region = Region3.new(RegionPart.Position - (RegionPart.Size / 2), RegionPart.Position + (RegionPart.Size / 2))

There! Now we've got the volume within the region! Let's start detecting stuff within the region!

local RegionPart = game.Workspace.Part
local Region = Region3.new(RegionPart.Position - (RegionPart.Size / 2), RegionPart.Position + (RegionPart.Size / 2))

while wait() do
    local PartsInRegion = workspace:FindPartsInRegion3(Region, nil, 1000)

end

This is a bit confusing at first but it's simple;

Param1: Which region do we want to specify; The region we created

Param2: What Parts should we ignore; None so far, since we're in an empty baseplate.

Param3; What is the maximum allowance of parts in the region; 1000

Great, next part!

local RegionPart = game.Workspace.Part
local Region = Region3.new(RegionPart.Position - (RegionPart.Size / 2), RegionPart.Position + (RegionPart.Size / 2))

while wait() do
    local PartsInRegion = workspace:FindPartsInRegion3(Region, nil, 1000)

    for i, hit in pairs(PartsInRegion) do
        if hit.Parent:FindFirstChild("Humanoid") ~= nil then
            print("Player found in region. Name: " .. hit.Parent.Name)
        end
    end
end

And yeah, you're probably and advanced script so you know about the next xD. Great! Now it should work, check it out in studio it's working congrats! Your first Region3!!

You can also do many stuff like make the player take damage!;

local RegionPart = game.Workspace.Part
local Region = Region3.new(RegionPart.Position - (RegionPart.Size / 2), RegionPart.Position + (RegionPart.Size / 2))

while wait() do
    local PartsInRegion = workspace:FindPartsInRegion3(Region, nil, 1000)

    for i, hit in pairs(PartsInRegion) do
        if hit.Parent:FindFirstChild("Humanoid") ~= nil then
            print("Player found in region. Name: " .. hit.Parent.Name)
            local Char = hit.Parent
            Char.Humanoid:TakeDamage(100)

        end
    end
end

Compatibility With Your Script

Make some parts all positioned to the parking spot;

Positions: Parking Spots

Sizes: Size of the parking lot

CanCollide: False

Transparency: 0.5 -- You can change this to 1 when your game releases.

Material: "ForceFeild"

Then parent all the regions to the

Okay, this is the hard part! We'll do it tho Make a region in every parking lot you have.

Put a folder in workspace named ParkingRegions and parent all the regions to the folder

-- Services ~

local CollectionService = game:GetService("CollectionService")

-- Tables ~

local ParkingSpots = {}
local PartsToIgnore = {} -- All the parts you want to ignore in the region, you can also use :GetChildren() or :GetDescendants() since they all return tables

-- Values ~

local waittime = 5

-- Object Variables ~

local seat = script.Parent
local model = script.Parent.Parent

local warngui = script.warning
warngui.Parent = script.Parent

-- Functions ~

function Initialize()
    for _, v in pairs(workspace.ParkingRegions:GetChildren()) do
        local found

        if v:IsA("BasePart") then
            found = true

            CollectionService:AddTag(v, "ParkingSpots")
            table.insert(ParkingSpots, v)
        else
            found = false

        end
    end
end

Initialize()

function CheckRegion()
    local ParkingSpots = CollectionService:GetTagged("ParkingSpots")

    for regionIndex, region in pairs(ParkingSpots) do
        local IndividualRegion = Region3.new(region.Position - (region.Size / 2), region.Position + (region.Size / 2))

        while wait() do
            local PartsFound = workspace:FindPartsInRegion3WithIgnoreList(IndividualRegion, PartsToIgnore, math.huge)

            for hitIndex, hit in pairs(PartsFound) do
                if hit:IsDescendantOf(model) then
                    return true
                else
                    return false

                end
            end
        end
    end
end

seat.ChildRemoved:connect(function(x)
    local Parked = CheckRegion()

     if x.Name == "SeatWeld" and not Parked then
        warngui.Enabled = true
        warngui.text.Text = waittime.. " seconds until removal"

        while not Parked do
            wait(1)

            waittime = waittime - 1
            warngui.text.Text = ""..waittime.." seconds until removal"

            if waittime <= 0 then
                waittime = 5

               warngui.Enabled = false

               if seat:findFirstChild("SeatWeld") == nil then
                    model:Destroy()

                end
            end            
        end
    end
end)

I'm too tired to explain, I'll edit it tomorrow and I'll explain how it works;

Sincerely - CaIcuIati0n

I can proudly say this works, if it does not work you have not listened or etc.

STAY SAFE :D

if not parked then
    despawn()
end

ez