Running multiple threads at once

[CheeseGodTheEpic (Cheese God)]

So right now I have a little bit of an issue. I’m trying to run 2 threads at a time, using 2 coroutines, but they never seem to run at the same time, and actually, the second one never seems to run. I’m doing this in a module script, where I’m basically trying to have a script counting down the seconds until a game is finished, while the other is a loop controlling enemy movement. Any ideas? I know using a different script is an option, and that would work, but I’m trying to have only 3 scripts, one of each type, to keep it simple. Here’s what I have right now:

local timer = coroutine.create(function()
		for x = 180, 0, -1 do
			print("Ran")
			local event = ReplicatedStorage:WaitForChild("TimeLeftEvent")
			event:FireAllClients("InGame",x)
			wait(1)
		end
	end)
	
	local cubeMovement = coroutine.create(function()
		local cube = game.Workspace.SewerMap.SpookyCube
		local cubeRay = Ray.new(cube.Position, Vector3.new(100,100,100))
		local characters = {}
		for _, player in pairs(game.Players:GetChildren()) do
			if player:IsA("Player") then
				table.insert(characters,#characters+1, player.Character)
			end
		end
		while wait(1) do
			local hit, position = game.Workspace:FindPartOnRayWithWhitelist(cubeRay,characters)
			if hit then
				print("Player was found")
			end
		end
	end)
	coroutine.resume(timer)
	coroutine.resume(cubeMovement)

[Xacima (Yui)]

Help With Understanding Threads and Multithreading

There’s a bit to this. Multi-Threading A “thread” in programming is essentially a set of instructions. A modern operating system will give each set of instructions some CPU time and alternate between them, giving the illusion that they’re running simultaneously. Most computers these days also have multiple CPU cores, meaning that in some sense, some of these threads are actually being run simultaneously. The ability to run several threads simultaneously is known as multi-threading. Generally,…

[7z99 (cody)]

I think it’s because you don’t have enough ends or because you’re resuming the coroutine inside of itself.

Try this:

local timer = coroutine.create(function()
		for x = 180, 0, -1 do
			print("Ran")
			local event = ReplicatedStorage:WaitForChild("TimeLeftEvent")
			event:FireAllClients("InGame",x)
			wait(1)
		end
	end)
	
	local cubeMovement = coroutine.create(function()
		local cube = game.Workspace.SewerMap.SpookyCube
		local cubeRay = Ray.new(cube.Position, Vector3.new(100,100,100))
		local characters = {}
		for _, player in pairs(game.Players:GetChildren()) do
			if player:IsA("Player") then
				table.insert(characters,#characters+1, player.Character)
			end
		end
		while wait(1) do
			local hit, position = game.Workspace:FindPartOnRayWithWhitelist(cubeRay,characters)
			if hit then
				print("Player was found")
			end
		end
	end)
	coroutine.resume(timer)
end)
coroutine.resume(cubeMovement)