[CLOSED] Ai Pathfinding has Breaks/Pauses in Movement

Help and Feedback Scripting Support
, ,
1

Settings:

return 
    {
	range = math.huge,
	chaseRange = 500,
	minSpeed = 5,
	maxSpeed = 29,
	speedIncreaseRate = 1,
	damage = 100,
	attackRange = 2,
	attackCooldown = 1,
	targetScanCooldown = 1,
	knockback = 10,
	wanderDistance = 15,
	wanderCooldown = {3, 6},
	tagged = {"AiTag"},
	attackAnimation = "rbxassetid://3489169607",
	attackSounds = {"18942724219"},
	respawning = true,
	ragdoll = true,
    }

Ai

local Ai = script.Parent
local humanoid = Ai:WaitForChild("Ai")  -- Fixed variable name to "Humanoid"
local root = Ai:WaitForChild("HumanoidRootPart")
local PathfindingService = game:GetService("PathfindingService")
local RunService = game:GetService("RunService")

local module = require(Ai:WaitForChild("Settings"))

-- Load Attack Animation
local attackAnim = Instance.new("Animation")
attackAnim.AnimationId = module.attackAnimation
local attackAnimation = humanoid:LoadAnimation(attackAnim)

-- Setup Attack Sounds
local attackSounds = {}
for i, soundId in ipairs(module.attackSounds) do
	local sound = Instance.new("Sound")
	sound.SoundId = "rbxassetid://" .. soundId
	sound.Name = "Attack" .. i
	sound.Volume = 0.75
	sound.Parent = Ai:FindFirstChild("Head") or Ai
	table.insert(attackSounds, sound)
end

-- Variables
local target = nil
local lastTargetPosition = nil
local currentSpeed = module.minSpeed > 0 and module.minSpeed or 8
local lastDamageTime = -math.huge
local lastScanTime = -math.huge
local lastPathTime = 0
local speedMultiplier = 20
local currentPath = nil
local pathIndex = 1
local reachedConnection = nil

humanoid.WalkSpeed = currentSpeed

-- Respawn Logic
if module.respawning then
	local clone = Ai:Clone()
	humanoid.Died:Connect(function()
		task.delay(4, function()
			clone:SetPrimaryPartCFrame(Ai:GetPrimaryPartCFrame())
			clone.Parent = workspace
			clone.Humanoid.Health = clone.Humanoid.MaxHealth
			clone:MakeJoints()
			Ai:Destroy()
		end)
	end)
end

-- Ragdoll Logic
if module.ragdoll then
	humanoid.BreakJointsOnDeath = false
	humanoid.Died:Connect(function()
		root.Velocity = root.CFrame.LookVector * -15
		root.CanCollide = false
		for _, joint in pairs(Ai:GetDescendants()) do
			if joint:IsA("Motor6D") then
				local socket = Instance.new("BallSocketConstraint")
				local a1 = Instance.new("Attachment", joint.Part0)
				local a2 = Instance.new("Attachment", joint.Part1)
				socket.Attachment0 = a1
				socket.Attachment1 = a2
				socket.LimitsEnabled = true
				socket.TwistLimitsEnabled = true
				socket.Parent = joint.Parent
				a1.CFrame = joint.C0
				a2.CFrame = joint.C1
				joint:Destroy()
			end
		end
	end)
end

-- Attack Function
local function attack(targetRoot, range)
	if humanoid.Health <= 0 then return end
	lastDamageTime = time()

	if not attackAnimation.IsPlaying then
		attackAnimation:Play()
	end

	-- Apply knockback
	targetRoot.Velocity = (targetRoot.Position - root.Position).Unit * module.knockback + Vector3.new(0, module.knockback / 2, 0)

	-- Damage and sound after half animation length
	task.delay(attackAnimation.Length / 2, function()
		if target and (targetRoot.Position - root.Position).Magnitude <= range then
			target:TakeDamage(module.damage)
		end
		attackSounds[math.random(#attackSounds)]:Play()
	end)

	-- Stop animation after full length if cooldown passed
	task.delay(attackAnimation.Length, function()
		if time() - lastDamageTime >= 0.2 then
			attackAnimation:Stop()
		end
	end)
end

-- Follow Path Function
local function followPath(path, targetRoot)
	if reachedConnection then
		reachedConnection:Disconnect()
		reachedConnection = nil
	end

	local waypoints = path:GetWaypoints()
	pathIndex = 1

	local function moveToNext()
		if humanoid.Health <= 0 or pathIndex > #waypoints then return end

		local waypoint = waypoints[pathIndex]
		local distToWaypoint = (root.Position - waypoint.Position).Magnitude

		if distToWaypoint < 1 then
			pathIndex += 1
			moveToNext()
			return
		end

		humanoid:MoveTo(waypoint.Position)
		pathIndex += 1
	end

	moveToNext()

	reachedConnection = humanoid.MoveToFinished:Connect(function(reached)
		if not reached then return end

		if targetRoot and (targetRoot.Position - root.Position).Magnitude <= module.attackRange then
			if time() - lastDamageTime >= module.attackCooldown then
				attack(targetRoot, module.attackRange)
			end
		else
			-- Small wait to prevent jittering before moving to next waypoint
			task.wait(0.05)
			moveToNext()
		end
	end)
end

-- Compute Path to Target
local function computePathToTarget(targetRoot)
	if not targetRoot then return end

	local path = PathfindingService:CreatePath({
		AgentRadius = 2,
		AgentHeight = 5,
		AgentCanJump = true,
		AgentJumpHeight = humanoid.JumpHeight,
		AgentWalkableFloorAngle = humanoid.MaxSlopeAngle,
		WaypointSpacing = 2
	})

	path:ComputeAsync(root.Position, targetRoot.Position)

	if path.Status == Enum.PathStatus.Success then
		currentPath = path
		followPath(path, targetRoot)
	else
		-- Pathfinding failed - optionally handle here
	end
end

-- Find Closest Valid Target
local function findClosestTarget()
	local closestTarget = nil
	local closestDistance = math.huge

	for _, humanoidCandidate in pairs(workspace:GetDescendants()) do
		if humanoidCandidate:IsA("Humanoid") and humanoidCandidate ~= humanoid and humanoidCandidate.Health > 0 then
			local isTagged = false
			for _, tag in ipairs(module.tagged) do
				if humanoidCandidate.Parent:FindFirstChild(tag) then
					isTagged = true
					break
				end
			end

			if not isTagged then
				local candidateRoot = humanoidCandidate.Parent:FindFirstChild("HumanoidRootPart")
				if candidateRoot then
					local dist = (candidateRoot.Position - root.Position).Magnitude
					if dist <= module.range and dist < closestDistance then
						closestDistance = dist
						closestTarget = humanoidCandidate
					end
				end
			end
		end
	end

	return closestTarget
end

-- AI Main Loop
RunService.Heartbeat:Connect(function(dt)
	if humanoid.Health <= 0 then return end

	humanoid.Sit = false

	-- Target scanning
	if time() - lastScanTime >= module.targetScanCooldown then
		lastScanTime = time()
		local newTarget = findClosestTarget()

		if newTarget ~= target then
			target = newTarget
			if target then
				local targetRoot = target.Parent and target.Parent:FindFirstChild("HumanoidRootPart")
				if targetRoot then
					computePathToTarget(targetRoot)
				end
			end
		end
	end

	if target and target.Health > 0 then
		local targetRoot = target.Parent and target.Parent:FindFirstChild("HumanoidRootPart")
		if targetRoot then
			local dist = (targetRoot.Position - root.Position).Magnitude

			-- Increase speed when chasing
			if dist <= module.chaseRange then
				currentSpeed = math.min(currentSpeed + module.speedIncreaseRate * dt * speedMultiplier, module.maxSpeed)
				humanoid.WalkSpeed = currentSpeed
			end

			-- Conditions to recompute path
			local shouldRepath = false

			if not currentPath or pathIndex > #currentPath:GetWaypoints() then
				shouldRepath = true
			elseif lastTargetPosition and (lastTargetPosition - targetRoot.Position).Magnitude > 10 then
				shouldRepath = true
			elseif humanoid.MoveDirection.Magnitude == 0 and (os.clock() - lastPathTime > 1) then
				shouldRepath = true
			end

			if shouldRepath and (os.clock() - lastPathTime > 1.5) then
				lastTargetPosition = targetRoot.Position
				computePathToTarget(targetRoot)
				lastPathTime = os.clock()
			end
		else
			target = nil -- target root missing, reset target
		end
	else
		-- Reset speed when no target
		if currentSpeed ~= module.minSpeed then
			currentSpeed = module.minSpeed
			humanoid.WalkSpeed = currentSpeed
		end
	end
end)

I know the code is messy (I haven’t finished the pathfinding method)

2

I just realised the video doesn’t show the issue…

3

Not sure if you have it in your code since its quite large but try setting the HumRoot part of the humanoid to nil, HumanoidRootPart:SetNetworkOwner(nil), may have spelt owner function thing wrong, not in studio

4

I’ve added this into the script:

root:SetNetworkOwner(nil)
5

Also, I don’t know if this is relevant I made the HRP the PrimaryPart for the Rig Model.

6

I fixed the issue now, you were right:

for _, part in ipairs(Ai:GetDescendants()) do
	if part:IsA("BasePart") then
		part:SetNetworkOwner(nil)
	end
end
7

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