NPC Strange Pathfinding

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#1

Hello, I have an issue with NPC pathfinding whereby the rig seems to be taking really strange routes which could be a lot more simple. I am not sure if there’s something missing, but would really appreciate some help.

Initially, the NPC was taking a really bizarre route where it would go around a part for absolutely no reason (see video #1 below). I then looked into pathfinding links, and managed to somewhat get around this, however the NPC still takes weird routes, especially on the way back to the original position (see vid #2 below) and often gets stuck when trying to move past certain parts.

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Is there any way to get around this and make it so that the NPC is not taking these strange routes, and avoids colliding with random objects and getting suck?

Videos: ROBLOX Pathfinding Demos - Album on Imgur

Move Function:

function moveNPC(NPC, Part)
	local Humanoid = NPC:WaitForChild("Humanoid")
	local Animator = Humanoid.Animator
	local WalkAnim = Animator:LoadAnimation(NPC.Animate.walk.WalkAnim)

	local waypoints = calculatePath(NPC, Part)
	WalkAnim:Play()

	local currentPos = NPC.HumanoidRootPart.Position

	for i, waypoint in ipairs(waypoints) do
		wait()
		local newPos = waypoint

		-- Move the NPC
		local success, message = pcall(function()
			Humanoid:MoveTo(newPos)
			Humanoid.MoveToFinished:Wait()
		end)

		if not success then
			print("Error moving NPC:", message)
		end

		currentPos = newPos
	end

	WalkAnim:Stop()
	wait(1)
end

BEFORE Pathfinding Link:

function calculatePath(NPC, Part)
    local Path = game:GetService("PathfindingService"):CreatePath()
	Path:ComputeAsync(NPC.HumanoidRootPart.Position, Part.Position)

	local waypoints = Path:GetWaypoints()
	local pathPositions = {}
	for _, waypoint in ipairs(waypoints) do
		table.insert(pathPositions, waypoint.Position)
	end

	return pathPositions
end

AFTER Pathfinding Link:

function calculatePath(NPC, Part)
	local AgentParameters = {
		AgentRadius = 4,
		WaypointSpacing = 3,
		Costs = {
			Link = 2,
		}
	}
	
	local Path = game:GetService("PathfindingService"):CreatePath(AgentParameters)
	Path:ComputeAsync(NPC.HumanoidRootPart.Position, Part.Position)

	local waypoints = Path:GetWaypoints()
	local pathPositions = {}
	for _, waypoint in ipairs(waypoints) do
		table.insert(pathPositions, waypoint.Position)
	end

	return pathPositions
end

Thank you for reading,
Cody :smiley:

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