How to make AI from walking to running after see player

[aomsinz800i (Exitium)]

You can write your topic however you want, but you need to answer these questions:

1. What do you want to achieve? Keep it simple and clear!

   Ai change from walking to running after see player 
   

2. What is the issue? Include screenshots / videos if possible!

   Ai keep playing animation of running instead of going back to walking after lost sight of player
   ( run to last player’s position).

3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?

   –

After that, you should include more details if you have any. Try to make your topic as descriptive as possible, so that it’s easier for people to help you!

local PathfindingService = game:GetService("PathfindingService")
local Runservice = game:GetService("RunService")
local npc = script.Parent
local humanoid = npc:WaitForChild("Humanoid")
local hrp = npc:WaitForChild("HumanoidRootPart")
hrp:SetNetworkOwner(nil)

local walkAnim = humanoid.Animator:LoadAnimation(script.Walk)
local attackAnim = humanoid.Animator:LoadAnimation(script.Attack)
local RunAnim = humanoid.Animator:LoadAnimation(script.Run)

local pathParams = {
	AgentHeight = 6.5,
	AgentRadius = 6,
	AgentCanJump = true,
}

local rayParams = RaycastParams.new()
rayParams.FilterType = Enum.RaycastFilterType.Exclude
rayParams.FilterDescendantsInstances = {npc}

local lastPos
local animPlaying = false

local RANGE = 60
local Speed = 60  --60
local NorSpeed = 16 --16

local function canSeeTarget(target)
	local orgin = hrp.Position
	local direction = (target.HumanoidRootPart.Position - hrp.Position).Unit * RANGE
	local ray = workspace:Raycast(orgin, direction, rayParams)
	
	if ray and ray.Instance then
		if ray.Instance:IsDescendantOf(target) then
			return true
		else
			return false
		end
	else
		return false
	end
end

local function findTarget()
	local players = game.Players:GetPlayers()
	local maxDistance = RANGE
	local nearestTarget
	
	for i, player in pairs(players) do
		if player.Character then
			local target = player.Character
			local distance = (hrp.Position - target.HumanoidRootPart.Position).Magnitude
			
			if distance < maxDistance and canSeeTarget(target) then
				nearestTarget = target
				maxDistance = distance
				humanoid.WalkSpeed = Speed
				RunAnim:Play()
			
			end
		end
	end
	
	return nearestTarget
end

local function getPath(destination)
	local path = PathfindingService:CreatePath(pathParams)
	
	path:ComputeAsync(hrp.Position, destination.Position)
	
	return path	
end

local function attack(target)
	local distance = (hrp.Position - target.HumanoidRootPart.Position).Magnitude
	local debounce = false
	
	if distance > 5 then
		humanoid:MoveTo(target.HumanoidRootPart.Position)
	else
		if debounce == false then
			debounce = true
			
			npc.Head.AttackSound:Play()
			attackAnim:Play()
			target.Humanoid.Health = 0
			task.wait(0.5)
			debounce = false
		end
	end
end

local function walkTo(destination)
	local path = getPath(destination)
	
	if path.Status == Enum.PathStatus.Success then
		for i, waypoint in pairs(path:GetWaypoints()) do
			path.Blocked:Connect(function()
				path:Destroy()
			end)
			
			if animPlaying == false then
				walkAnim:Play()
				animPlaying = true
			end
			
			attackAnim:Stop()
			
			local target = findTarget()
			
			if target and target.Humanoid.Health > 0 then
				lastPos = target.HumanoidRootPart.Position
				attack(target)
				
				break
			else
				if waypoint.Action == Enum.PathWaypointAction.Jump then
					humanoid:ChangeState(Enum.HumanoidStateType.Jumping)
				end
				
				if lastPos then
					humanoid:MoveTo(lastPos)
					humanoid.MoveToFinished:Wait()
					lastPos = nil
					humanoid.WalkSpeed = NorSpeed
					break
				else
					humanoid:MoveTo(waypoint.Position)
					humanoid.MoveToFinished:Wait()
					humanoid.WalkSpeed = NorSpeed

				end
			end
		end
	else
		return
	end
end

local function patrol()
	local waypoints = workspace.Waypoints:GetChildren()
	local randomNum = math.random(1, #waypoints)
	walkTo(waypoints[randomNum])
end

while Runservice.Heartbeat:Wait(0.2) do
	patrol()
end

Context: I have a little bit of knowledge of scripting, after some manipulating script, It seem working!
but the problem start happening after adding animation. I’m really sorry, this is my first post.

[FrankenCoder]

I removed the lines:

--RunAnim:Play()
--walkAnim:Play()

The default Roblox animations for Run and Walk play as they should, when they should.

If you have custom animations for walk and run the just replace the default ones inside the NPC character.

NPC.rbxl (82.1 KB)

[aomsinz800i (Exitium)]

It seems working, thank you very much.