How would I get if an object is accessible through values?

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#1

I have been trying to make a system so that a player can see if an area is accessible through other areas. These inbetween areas and the area at the end must be owned by the player.

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But I’m not entirely sure how I would do this. I thought that using for loops would work but I have no idea how I would get for loops to go long enough to get to the area as it could have quite a few areas inbetween them. Each area has a StringValue in it that contains a table of the names of the areas has next to it.
The for loop solution I tried seemed like it would work at first but when I reached this point:

local selectableAreas = {}
local area = mouse.Target
						
for i,v in pairs(HTTP:JSONDecode(area.Connections.Value)) do
	for i2, v2 in pairs(game.Workspace.Map:FindFirstChild(v)) do
		if game.ReplicatedStorage.CurrentPlayer.Value == 1 then
			if v2.Owner.Value == "Red" then
				table.insert(selectableAreas, area)
			end
		end
	end
end

I realised that it wouldn’t work as I would need a number of for loops that I have no idea of determining.
Any help on how I would create a system that would be able to loop through the connection values of the areas would be appreciated.

#2

This function might help. I didn’t properly understand from the code you posted how you get the connected areas or the owner of an area, so I put parameters for functions that do those things. I haven’t tested this so I’m not sure if it works.

-- startArea is an area already owned by the player, target area is the area which you want to check if it's accessible
-- getConnectedAreas and getOwner should be functions
-- getConnectedArea should take an area and return a table of areas connected to it
-- (so if the areas are models, it should take a model and return a table of models)
-- getOwner should return any value that tells who owns the area
local function isAreaAccessible(startArea, targetArea, getConnectedAreas, getOwner)
    -- connectedAreas stores areas that are connected to startArea and owned by the player
    local connectedAreas = {}
    local alreadyChecked = {[startArea] = true}
    
    local owner = getOwner(startArea)

    for _, connectedArea in ipairs(getConnectedAreas(startArea)) do
        if connectedArea == targetArea then
            return true
        end
        if getOwner(connectedArea) == owner then
            table.insert(connectedAreas, connectedArea)
            alreadyChecked[connectedArea] = true
        end
    end

    while #connectedAreas > 0 do
        local newConnectedAreas = {}
        for _, connectedArea in ipairs(connectedAreas) do
            for _, newConnectedArea in ipairs(getConnectedAreas(onnectedArea)) do
                if newConnectedArea == targetArea then
                    return true
                end
                if not alreadyChecked[newConnectedArea] and getOwner(connectedArea) == owner then
                    table.insert(newConnectedAreas, newConnectedArea)
                    alreadyChecked[newConnectedArea] = true
                end
            end
        end
        connectedAreas = newConectedAreas
    end
    return false
end
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