How do you get the part with the lowest y position inside a model

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#1

so i’m trying to get the part with the lowest y value in the model or inside a folder i wonder how can i achieve that

game.Players.PlayerAdded:Connect(function(plr)
	local char = plr.Character or plr.CharacterAdded:Wait()
	local hrp = char:WaitForChild("HumanoidRootPart")
	local humanoid = char:WaitForChild("Humanoid")
	for i,v in pairs(plr:WaitForChild("Location"):GetChildren()) do -- loops thrugh the location folder inside the player
		v.Changed:Connect(function() -- changed event to check if the player location has changed
			
			if v.Name == "FirstStage" and v.Value == true then -- check if the player is on the first stage
				
				for i,v in pairs(game.Workspace.InGameObby.Stage1:GetChildren()) do --- finding the lowest part of the first stage
					if v:IsA("BasePart") then
						
					end
				end
				
				while wait() do --- checks if the humanoidrootpart.position.y is lower than the lowest part position
					
				end
			end
			
			
		end)
	end
end)
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#2 
local model = script.Parent
local lowestpart = nil

lowestpart = model.Part -- can be any part you want, I only assigned it so it wont error by attempt to index value by nil

for k_,v in ipairs(model:GetChildren()) do
    if v:IsA("BasePart") then
          if v.Position.Y. < lowestpart.PositionY then
                  lowestpart = v
          end
    end
end

This is only a brief idea as it involves looping through a table of the model’s children, comparing their y positions

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#3

i don’t know the lowest part in my game so how can i assign it to a variable on line3

#4

the lowestpart can be any part you want as said in the comment on line 3
the lowestpart variable will be changed constantly as it will keep being assigned to lower and lower parts so eventually, it will refer the lowest part after the table loop

#5

can i change the lowest part to a number value instead?

#6

yes, you would just have to edit the script I posted a little like this.

local model = script.Parent
local lowestpart = nil

lowestpart = 3 -- can be any number you want

for k_,v in ipairs(model:GetChildren()) do
    if v:IsA("BasePart") then
          if v.Position.Y < lowestpart.PositionY then
                  lowestpart = v.Position.Y -- lowestpart is assigned to the y value of the vector3 position
          end
    end
end```

If you won't refer to a part but rather a number, you can use what I just posted
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