Roblox Script Generated by ScripterAI

"if it is not pursuing or no longer pursuing a player, it should find the nearest waypoint and path to it. It should follow the way points to game.workspace.Door"

-- server script 
local pfs = game:GetService("PathfindingService")
local humanoid = script.Parent
local aggroRange = 20
local waypoints = game.Workspace.Waypoints:GetChildren() -- assuming waypoints are parts stored in a model
local door = game.Workspace.Door

-- Check if HumanoidRootPart exists
if not humanoid:FindFirstChild("HumanoidRootPart") then
	print("Error: Humanoid has no HumanoidRootPart")
	return
end

local path = pfs:CreatePath()
local targetPlayer

-- Function to check if a player is in aggro range
local function isPlayerInAggroRange(player)
	local playerPosition = player.Character.HumanoidRootPart.Position
	local distance = (humanoid.HumanoidRootPart.Position - playerPosition).Magnitude
	
	return distance <= aggroRange
end

-- Function to pursue a player
local function pursuePlayer(player)
	path:ComputeAsync(humanoid.HumanoidRootPart.Position, player.Character.HumanoidRootPart.Position)
	
	for _, pathWaypoint in pairs(path:GetWaypoints()) do
		humanoid.Humanoid:MoveTo(pathWaypoint.Position)
		humanoid.Humanoid.MoveToFinished:Wait()
	end
end

-- Function to find the nearest waypoint
local function findNearestWaypoint()
	local nearestWaypoint
	local shortestDistance = math.huge
	
	for _, waypoint in pairs(waypoints) do
		local distance = (humanoid.HumanoidRootPart.Position - waypoint.Position).Magnitude
		
		if distance < shortestDistance then
			nearestWaypoint = waypoint
			shortestDistance = distance
		end
	end
	
	return nearestWaypoint
end

-- Function to path to the door
local function pathToDoor()
	path:ComputeAsync(humanoid.HumanoidRootPart.Position, door.Position)
	
	for _, pathWaypoint in pairs(path:GetWaypoints()) do
		humanoid.Humanoid:MoveTo(pathWaypoint.Position)
		humanoid.Humanoid.MoveToFinished:Wait()
	end
end

-- Listen for player entering aggro range
game.Players.PlayerAdded:Connect(function(player)
	player.CharacterAdded:Connect(function(character)
		while true do
			if isPlayerInAggroRange(player) then
				targetPlayer = player
				break
			end
			
			wait(1)
		end
		
		while targetPlayer do
			if not isPlayerInAggroRange(targetPlayer) or not targetPlayer.Character or targetPlayer.Character.Humanoid.Health <= 0 then
				targetPlayer = nil
			else
				pursuePlayer(targetPlayer)
			end
			
			wait(1)
		end
		
		if not targetPlayer then
			local nearestWaypoint = findNearestWaypoint()
			
			if nearestWaypoint then
				pursuePlayer({Character = {HumanoidRootPart = nearestWaypoint}})
			else
				pathToDoor()
			end
		end
	end)
end)

-- Disable collision for NPCs
humanoid.HumanoidRootPart.CanCollide = false