Fix lag for looping a projectile

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#1

I want to fix something that lags my game. I have an archer that shoots arrows at targets but it causes lag.

Script:

Remote.Event:Connect(function(firePoint, hitPosition) -- Firepoint is an attachment
	local g = Vector3.new(0,-ToolData.EffectGravity,0)
	local x0 = firePoint.WorldPosition
	local t = 1 -- time taking to destination

	local v0 = (hitPosition - x0 - 0.5*g*t*t)/t

	local projectile = Instance.new("Part")
	projectile.Parent = workspace

	local nt = 0

	coroutine.wrap(function()
		while (nt < t*2) do <------------------------------ lags game
			if projectile ~= nil then
				projectile:PivotTo(CFrame.new(0.5*g*nt*nt + v0*nt + x0, projectile.PrimaryPart.AssemblyLinearVelocity + projectile.PrimaryPart.Position))
			end
			nt = nt + RunService.Heartbeat:Wait()
		end

		if projectile ~= nil then
			projectile:Destroy()
		end
	end)()

	projectile.Touched:Connect(function(hit)
		-- something
	end)

	game:GetService("Debris"):AddItem(projectile, 10)
end)

Part of this code was from this website by EgoMoose: Articles/Modeling a Projectile's Motion.md at master · EgoMoose/Articles · GitHub

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#2

You might want to change that RunService.Heartbeat:Wait() to task.wait(.2). It should be a simple change.

Also, change coroutine.wrap to task.spawn.

1 Like