How to check if a chunk is overlapping another chunk in random terrain generation

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#1

I want a function that checks if there are 2 chunks overlapping each other and destroy one of them so it doesnt cause lag. Right now I have a random terrain generation thing and I made it able to load, and destroy chunks based off of a render distance. But whenever new chunks load, it overlaps the chunks that are alraedy loaded it which causes lots of lags and can slow down the loading process.
I have tried lots of different functions but none would work. The function I currently use is a function that is run in a while loop which also calls the functions that create and destroy the chunks, it basically just checks if there are chunks. It sort of works, but only on 1 chunk. When I test it myself, only 1 chunk is not being overlapped but I want it to do that with all of the chunks that are overlapped, not just one.

function existCheck()
	for _, v in pairs(map:GetDescendants()) do
		for _, code in pairs(map:GetDescendants()) do
			if v:FindFirstChild("Code").Value == code:FindFirstChild("Code").Value then
				v:Destroy()
				return true
			end
		end
	end
	return false
end

Each chunk has it’s own code. The code is the X position of it’s main part, multiplied but its Z position. And in that code, it is supposed to check if there are 2 chunk codes that are the same. I did some checking and I saw that each chunk has their own code and the chunks that overlap have duplicate codes which this function is supposed to identify then destroy.

#2

You have a return in the loop, which stops your function after the first overlapping chunk is destroyed.

#3

I removed the return and edited the code but now it deletes all the chunks that are created. I believe there is a problem in me detecting if there are 2 chunks with the same id. How would I go about to check if there are 2 chunks with the same ID? I also made a similar function but instead it printed out which would be duplicates with a given table that counted 1,2,3,4,5 and it said all of them were duplicated so my way of checking is wrong and I don’t know how to check if there are 2 chunks with the same ID.

#4

Try adding v ~= code to your if statement. Another option is removing code with table.remove when you destroy v.

#5

This was my updated code. It works, but not the correct way. It deletes all the chunks, when I only want to delete chunks with duplicated ID values. image

#6

I managed to create a fix, and now it works. However, upon detecting the overlapping chunk, it deletes both the chunks. I want it to only delete the overlapping one, not both of them. Other than that, it works fine