Npc player tracking system stuttering and glitching

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#1

As you can probably tell, I am trying to achieve something simple, an NPC that is able to follow the closest player. This part works perfectly, but unfortunately, I’ve had a problem.

The NPC stutters while running after the player. Sometimes it stops stuttering and then starts again but I’m not sure if that is relevant. I think this problem is allied with the Renderstepped and MoveTo events/functions. Please let me know what you think.

Part of tScript:

local heartbeat = RunService.Heartbeat:Connect(function()
		task.wait()
		local players = game.Players:GetPlayers()
		for i,enemy in pairs(self.Models) do
			enemy.Parent = workspace
			local target = nil
			local minValue = nil
			for i,player in pairs(players) do
				local char = player.Character
				local distance = (enemy.HumanoidRootPart.CFrame.Position - char.HumanoidRootPart.CFrame.Position).magnitude
				if minValue == nil then
					minValue = distance
					target = char
					print("min value hahahhaa " .. minValue)
					print("target lol" .. target.Name)
				else
					if minValue > distance then
						minValue = math.min(minValue, distance)
						target = char
					else
						print("nonono")
					end
					print(distance)
					print(minValue)
					print(target)
				end
			end
			enemy.Humanoid:MoveTo(target.HumanoidRootPart.Position)
		end
	end)
#2

Use the roblox’s :moveTo example code and change it a bit:

local function moveTo(humanoid, targetPoint, andThen)
	local targetReached = false

	-- listen for the humanoid reaching its target
	local connection
	connection = humanoid.MoveToFinished:Connect(function(reached)
		targetReached = true
		connection:Disconnect()
		connection = nil
		if andThen then
			andThen(reached)
		end
	end)

	-- start walking
	humanoid:MoveTo(targetPoint)

	-- execute on a new thread so as to not yield function
	task.spawn(function()
		while not targetReached do
			-- does the humanoid still exist?
			if not (humanoid and humanoid.Parent) then
				break
			end
			-- has the target changed?
			if humanoid.WalkToPoint ~= targetPoint then
				break
			end
			-- refresh the timeout
			humanoid:MoveTo(targetPoint)
			task.wait(6)
		end

		-- disconnect the connection if it is still connected
		if connection then
			connection:Disconnect()
			connection = nil
		end
	end)
end

local function andThen(reached)
	print((reached and "Destination reached!") or "Failed to reach destination!")
end

moveTo(script.Parent:WaitForChild("Humanoid"), Vector3.new(50, 0, 50), andThen)
#4

Try creating a ray. For example:

--If the enemy's stud is less than the distance then
if (enemy.HRP.Position - char.Humanoid.Position).magnitude < distance then
	target = enemy.HRP
	
	--Create Ray
	local origin = char.Humanoid.Position -- Origin of the ray
	local direction = enemy.HRP.Position - char.Humanoid.Position -- direction of the ray
	local params = RaycastParams.new() --Ray cast params
	params.FilterDescendantsInstances = {script.Parent}
	params.FilterType = Enum.RaycastFilterType.Blacklist
	
	local ray = workspace:Raycast(origin, direction,params)
	
	if ray then
		char:MoveTo(target.Position) --If ray, then the character will move to the target 
	end
end
#5

I’ll definitely look into this script right here and make a few modifications to make the NPC constantly follow the player without any delay.

Just got one question, what am I supposed to pass in the andThen parameter?

edit: nevermind what a dumb question, I just had to pass the function

#6

Did it work? I’d love to know and if it did could you close the post.

#7

try setting the networkowner of all the baseparts of the npc to nil

for i,v in pairs(npc:GetDescendants()) do
    if v:IsA("BasePart") then
        v:SetNetworkOwner(nil)
    end
end
3 Likes
#8

Thank you, I was reading about network ownership last night because I’ve never really used it before. Turns out it works perfectly, cheers!

#9

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