Broken NPC Pathfinding

Help and Feedback Scripting Support
#1

I recently made a code for an ai to find the closest player, walk to that player if it is under a certain distance, and pathfinder to that player so it doesn’t walk into walls.

Specifics

  • There should not be any jumping events within the created path

Problems

  1. Does not even pathfind
  2. after around 10 seconds the nPC just stops

Broken Code:

local closestPlayer = nil
local closestDistance = 110

local NPC = script.Parent
local players = game:GetService("Players")
local pathfindingService = game:GetService("PathfindingService")
local lastPos = nil

function getClosestPlayer()
	closestPlayer = nil

	for _, player in pairs(players:GetPlayers()) do
		if player.Character and player.Character:FindFirstChild("HumanoidRootPart") then
			local playerPosition = player.Character.HumanoidRootPart.Position
			local distance = (playerPosition - NPC.HumanoidRootPart.Position).magnitude
			if distance < closestDistance then
				closestPlayer = game.Workspace.Players:FindFirstChild(player.Name)
				closestDistance = distance
			end
		end
	end

	return closestPlayer
end


local pathParams = {
	AgentHeight = 5,
	AgentRadius = 3,
	AgentCanJump = false,
}


local function getPath(destination)
	local path = pathfindingService:CreatePath(pathParams)

	path:ComputeAsync(NPC.PrimaryPart.Position, destination.Position)

	return path	
end

function walkToPlayer()
	local closestPlayer = getClosestPlayer()
	if closestPlayer ~= nil then
		local path = getPath(closestPlayer.PrimaryPart)
		
		if path.Status == Enum.PathStatus.Success then
			print("path.Status = Success")
			for i, waypoint in pairs(path:GetWaypoints()) do
				path.Blocked:Connect(function()
					path:Destroy()
				end)
				
				local target = closestPlayer
				
				if target and target.Humanoid.Health > 0 then
					lastPos = target.HumanoidRootPart.Position
					NPC.Hum:MoveTo(target.HumanoidRootPart.Position)
					break
				else
					if waypoint.Action == Enum.PathWaypointAction.Jump then
						NPC.Hum:ChangeState(Enum.HumanoidStateType.Jumping)
					end

					if lastPos then
						NPC.Hum:MoveTo(lastPos)
						NPC.Hum.MoveToFinished:Wait()
						lastPos = nil
						break
					else
						NPC.Hum:MoveTo(waypoint.Position)
						NPC.Hum.MoveToFinished:Wait()
					end
				end
				
			end
		else
			return
		end
		
	end
end


while true do
	walkToPlayer()
	wait()
end