How do I prevent spawning multiple parts in the same place?

local touch = false -- Do not touch/change

function regen(hit)
if not touch then	-- Debounce	
		
		
		touch = true				

script.Parent.BrickColor = BrickColor.new("Maroon")
-- Start Of Meat Of Script --
		DD = game.ServerStorage.Dinghy:Clone()
	
		DD.Parent = game.workspace.RegenDinghy.Spawner
-- End Of the Meat Of Script

wait(3) -- Until usable again

script.Parent.BrickColor = BrickColor.new("Royal purple")	
		print("Good") -- Confirms script went through
		touch = false		
				
	end
	
end

script.Parent.Touched:connect(regen)

Here is my perfectly functioning regen script. If it's possible, could I get a heads up on how to prevent multiple parts(in my case, boats) being spawned all at the same spawn in the exact same spot simultaneously? I don't want all the boats joining together.

I was thinking if I made the spawner check if there were parts in its area, but I'm not too sure on how.

Comment if something is confusing.

Not sure if this will help, but here's a function I wrote which detects if any parts are within another part:

Run = function(BasePart, Bin)
	local Size = BasePart.Size
	local Centre = BasePart.Position
	local XPosMax = Centre.X +Size.X/2
	local XPosMin = Centre.X -Size.X/2
	local YPosMax = Centre.Y +Size.Y/2
	local YPosMin = Centre.Y -Size.Y/2
	local ZPosMax = Centre.Z +Size.Z/2
	local ZPosMin = Centre.Z -Size.Z/2
	local In_Range = {}
	local Scan = nil;
	local Scan = function(Group)
		for _,Parts in pairs(Group:GetChildren()) do
			if Parts.ClassName:match("Part") and (Parts ~= BasePart) then
				local Xs,Ys,Zs = Parts.Size.X,Parts.Size.Y,Parts.Size.Z
				local X,Y,Z,Xl,Yl,Zl = Parts.Position.X+(Xs/2),Parts.Position.Y+(Ys/2),Parts.Position.Z+(Zs/2),Parts.Position.X-(Xs/2),Parts.Position.Y-(Ys/2),Parts.Position.Z-(Zs/2)
				if ((X <= XPosMax) and (Xl >= XPosMin)) and ((Y <= YPosMax) and (Yl >= YPosMin)) and ((Z <= ZPosMax) and (Zl >= ZPosMin)) then
					table.insert(In_Range, Parts)
				end
			end
			if #Parts:GetChildren() > 0 then
				Scan(Parts)
			end
		end
	end
	Scan(Bin)
	return In_Range
end

So you just run this function with the first parameter being the part which will represent the area. This part can be invisible and cancollided, so it doesn't appear to anyone in-game.

The second parameter is the instance which it will scan. The function will scan ALL descendants of this instance, and return a table of everything which is inside the area part.