Roblox script add enemy AI

--[[
INSTRUCTION:
------------
1.Create script inside part and put (code below checked name [1])
2.Create another script inside part and put (code below checked name [2])
3.Create BodyPosition inside part and don't change name of BodyPosition!
4.Change attributes of BodyPosition P=3000
5.Run!

my profile:
https://www.roblox.com/users/140427102/profile
Enjoy!
--]]

--[1]----
local part = script.Parent
local humanoid = nil
local torso = nil
local debounce = false

local part = script.Parent
local humanoid = nil
local torso = nil
local debounce = false

while wait(0.010) do
    for i,v in pairs(game.Workspace:GetChildren()) do
        humanoid = v:FindFirstChild("Humanoid")
        torso = v:FindFirstChild("UpperTorso")

        if torso and humanoid and humanoid.Health > 0 then
            if (part.Position - torso.Position).Magnitude <= 50 then
                part.CFrame = CFrame.new(part.Position,torso.Position)
                if part:FindFirstChild("BodyPosition") and (humanoid.Health > 0 or humanoid.Health > 2) then
                    part.BrickColor = BrickColor.Red()
                    part.BodyPosition.Position = torso.Position
                end
            else
                part.CFrame = CFrame.new(part.Position,Vector3.new(51, 2.5, 98))
                part.BrickColor = BrickColor.new(163, 162, 165)
                if part:FindFirstChild("BodyPosition") then
                    part.BodyPosition.Position = Vector3.new(51, 2.5, 98)
                end
            end
        elseif humanoid and humanoid.Health <= 0 then
            part.CFrame = CFrame.new(part.Position,Vector3.new(51, 2.5, 98))
            part.BrickColor = BrickColor.new(163, 162, 165)
            if part:FindFirstChild("BodyPosition") then
                part.BodyPosition.Position = Vector3.new(51, 2.5, 98)
            end
        end
    end
end
------------------

--[2]----
local part = script.Parent
local bs = nil
local debounce = false
local function onTouched(otherPart)
    bs = otherPart.Parent:FindFirstChild("Humanoid")
    if bs and debounce == false then
        debounce = true
        bs:TakeDamage(10)
        wait(3)
        debounce = false
    end
end

part.Touched:Connect(onTouched)