Enemy Handler with coroutines isn't functioning?

[cjjjimmy]

Hi, I followed a youtube tutorial by yellow mustang to make an enemy handler using coroutines as I don’t understand coroutines at all and thought that it would be helpful to make the script and study it for better understanding. The problem is, it doesn’t work! I’ve tried checking youtube and devforum topics but I really wasn’t able to figure it out. I’m not used to not having my errors thrown at me for me to fix so I’m very confused. I looked it up and apparently you can use coroutine.resume() to find errors or something?? I’m really confused and in over my head.

All i’m looking for is some simple pointers on how to easily tell which of these is erroring. As long as I can figure that out, I can learn by myself what i’ve done wrong and how to fix it.

Thank you for taking the time to read!

local collectionService = game:GetService("CollectionService")

local thieves = {}

function spawner(func,...)
	local co = coroutine.wrap(func)
	co(...)
end

function checkDist (part1, part2)
	if typeof(part1) ~= Vector3 then part1 = part1.Position end
	if typeof(part2) ~= Vector3 then part2 = part2.Position end
	return  (part1 - part2).Magnitude
end

function updateTarget()
	local humans = collectionService:GetTagged("Human")
	for _, thief in pairs(thieves) do
		local target = nil
		local dist = 200
		for _, human in pairs(humans) do
			local root = human.RootPart
			if root and human.Health > 0 and checkDist(root,thief.root) < dist and human.Parent.Name ~= thief.char.Name then
				dist = checkDist(root, thief.root)
				target = root
			end
		end
		thief.target = target
	end
end

spawner(function()
	while wait(1) do
		updateTarget()
	end
end)

function pathToTarget(thief)
	local path = game:GetService("PathfindingService"):CreatePath()
	path:ComputeAsync(thief.root.Position, thief.target.Position)
	local waypoints = path:GetWaypoints()
	local currentTarget = thief.target
	for i, v in pairs(waypoints) do
		if v.Action == Enum.PathWaypointAction.Jump then
			thief.human.Jump = true
		else
			thief.Human:MoveTo(v.Position)
			spawner(function()
				wait(0.5)
				if thief.human.WalkToPoint.Y > thief.root.Position.Y then
					thief.human.Jump = true
				end
			end)
			thief.human.MoveToFinished:Wait()
			if not thief.target then
				break
			elseif checkDist(currentTarget,waypoints[#waypoints]) > 10 or currentTarget ~= thief.target then
				pathToTarget(thief)
				break
			end
		end		
	end
end

function moveHandler(thief)
	while wait(1) do
		if thief.human.Health <= 0 then
			break
		end
		if thief.target then
			pathToTarget(thief)
		end
	end
end

function attack(thief)
	local human = thief.target.Parent.Humanoid
	human:TakeDamage(math.random(15,25))
end

spawner(function()
	while wait(0.5) do
		for _, thief in pairs(thieves) do
			if thief.target then
				if checkDist(thief.target, thief.root) < 0 then
					attack(thief)
				end
			end
		end
	end
end)








function tagHuman(instance)
	local humanoid = instance:FindFirstChildWhichIsA("Humanoid")
	if humanoid then
		collectionService:AddTag(humanoid, "Human")
	end
end

function removeThief(thief)
	local index = table.find(thieves, thief)
	table.remove(thieves, index)
	wait(5)
	thief.char:Destroy()
	thief.clone.parent = workspace
end

function addThief(thiefHumanoid)
	table.insert(thieves, {
		char = thiefHumanoid.Parent,
		root = thiefHumanoid.RootPart,
		human = thiefHumanoid,
		target = nil,
		clone = thiefHumanoid.Parent:Clone(),
	})
	for _, thief in pairs(thieves) do
		if thief.Human == thiefHumanoid then
			thief.human.Died:Connect(function() removeThief(thief) end)
			for i, v in pairs(thief.char:GetDescendants()) do
				if v:IsA("BasePart") and v:CanSetNetworkOwnership() then
					v:SetNetworkOwner(nil)
				end
			end
			spawner(moveHandler, thief)
			break
		end
	end
end

workspace.ChildAdded:Connect(tagHuman)

collectionService:GetInstanceAddedSignal("Thief"):Connect(function(thiefHumanoid)
	addThief(thiefHumanoid)
end)

function initialize()
	for _, v in pairs(collectionService:GetTagged("Thief")) do
		local found = false
		for _, x in pairs(thieves) do
			if x.human == v then
				found = true
			end
		end
		if not found then
			addThief(v)
		end
	end
end

initialize()