So I am in need of some help with the new pathfinding system. I am currently trying to make an npc that follows the player with pathfinding and do not know how to update its path to recalculate the path if the player moves without the npc just freezing while the player is moving. Currently this is my code

local zombie = script.Parent
local human = zombie:FindFirstChild("Humanoid")
local zombieRoot = zombie:FindFirstChild("HumanoidRootPart")
local pathFindingService = game:GetService("PathfindingService")

wait(1)

if not human then return end

while wait() do
	if script.Parent.Agro.Value == false then
		local players = {}
		for i,v in pairs(game.Players:GetChildren()) do
			local char = v.Character
			if char then
				local root = v.Character:FindFirstChild("HumanoidRootPart")
				if (root.Position - zombieRoot.Position).magnitude <= 25 then
					table.insert(players, v.Character)
				end 
			end
		end
	
		if players[1] ~= nil then
			local locations = {}
			for i,v in pairs(players) do
				local pos = (v.HumanoidRootPart.Position - zombieRoot.Position).magnitude
				table.insert(locations, pos)
			end
			
			local key, max = 1, locations[1]
			for i,v in pairs(locations) do
				if locations[i] > max then
					key, max = i, v
				end
			end
			
			local plr = players[key]

			script.Parent.Agro.Value = true
			script.Parent.Target.Value = plr
			
			repeat wait() 
				local start = script.Parent.HumanoidRootPart
				local finish = script.Parent.Target.Value.HumanoidRootPart.Position

				local path = pathFindingService:FindPathAsync(start.Position, finish)
				local waypoints = path:GetWaypoints()
				
				for i,v in ipairs(waypoints) do
					if finish ~= script.Parent.Target.Value.HumanoidRootPart.Position then
						break
					else
						human:MoveTo(v.Position)
						human.MoveToFinished:Wait()
						if v.Action == Enum.PathWaypointAction.Jump then
							human.Jump = true
						end
					end
				end
			until plr.Humanoid.Health < 1 or (plr.HumanoidRootPart.Position - zombieRoot.Position).magnitude > 30
			
			script.Parent.Agro.Value = false
			script.Parent.Target.Value = nil
		end
	end
end

If anyone could help and shine some light on this that would be awesome, thank you.

Anonymous