Yielding Error - Aero Game Framework

Help and Feedback Scripting Support
#1

Im making a weapon system for my game, and in the part where I require the script, now its giving me this error(im using Aero Game Framework):

  13:41:02.398 - attempt to yield across metamethod/C-call boundary
13:41:02.399 - Stack Begin
13:41:02.400 - Script 'Players.HDWC.PlayerScripts.Aero.Internal.AeroClient', Line 110 - index Gun
13:41:02.400 - Script 'Players.HDWC.PlayerScripts.Aero.Controllers.Gun', Line 19 - method UseGun
13:41:02.401 - Script 'Players.HDWC.PlayerScripts.Aero.Controllers.Main', Line 19 - upvalue func
13:41:02.401 - Script 'ReplicatedStorage.Aero.Internal.FastSpawn', Line 43
13:41:02.402 - Stack End

The module being required:

local Gun = {}
Gun.__index = Gun
local CURRENTFOV = 70

local require = require(game:GetService("ReplicatedStorage").Nevermore)

function lerp(a,b,t) return a * (1-t) + b * t end

function Gun.new(char, gun)
	
	
	
	local self = setmetatable({
		
		char = char;
		gun = gun;
		firing = false;
		fireDT = 0;
		
	}, Gun)
	
	
	self.gun.Parent = workspace
	self.mouse = game.Players.LocalPlayer:GetMouse()
	self.aiming = false
	self.config = require(gun.Configuration)
	
	
	return self
	
end

function Gun:update(dt)
	local hit, position
	if self.firing then
		self.firedt = self.firedt + dt
		if self.firedt > 60 / self.config.FireRate then
			hit, position = self:fire()
			self.firedt = 0
		end
	end
	
	if hit then
		return hit, position
	end
end

function Gun:SetAiming(tf)
	self.aiming = tf
	if tf then
		coroutine.wrap(function()
			local beginNum = game.Players.LocalPlayer.CameraMaxZoomDistance
			local beginFov = workspace.CurrentCamera.FieldOfView
			local zoom = game.Players.LocalPlayer
			local fov = workspace.CurrentCamera
			
			local targetFov = (self.config.FOV / 100) * CURRENTFOV
			local targetZoom = self.config.AimCameraDist
			
			local totalDT = 0
			
			while fov.FieldOfView > targetFov and self.aiming do
				local dt = game:GetService("RunService").RenderStepped:wait()
				totalDT = totalDT + dt
				fov.FieldOfView = lerp(beginFov, targetFov, totalDT / 0.3)
				zoom.CameraMinZoomDistance = lerp(beginNum, targetZoom, totalDT / 0.3)
				zoom.CameraMaxZoomDistance = lerp(beginNum, targetZoom, totalDT / 0.3)
			end
		end)()
	else
		coroutine.wrap(function()
			local beginNum = game.Players.LocalPlayer.CameraMaxZoomDistance
			local beginFov = workspace.CurrentCamera.FieldOfView
			local zoom = game.Players.LocalPlayer
			local fov = workspace.CurrentCamera
			
			local targetFov = CURRENTFOV
			local targetZoom = 14
			
			local totalDT = 0
			
			while fov.FieldOfView < targetFov and not self.aiming do
				local dt = game:GetService("RunService").RenderStepped:wait()
				totalDT = totalDT + dt
				fov.FieldOfView = lerp(beginFov, targetFov, totalDT / 0.3)
				zoom.CameraMinZoomDistance = lerp(beginNum, targetZoom, totalDT / 0.3)
				zoom.CameraMaxZoomDistance = lerp(beginNum, targetZoom, totalDT / 0.3)
			end
		end)()
	end
end

function Gun:SetFiring(tf)
	self.firing = tf;
	self.firedt = 0;
end

function Gun:fire()
	local cameraDist = game.Players.LocalPlayer.CameraMaxZoomDistance
	local ray = Ray.new(self.mouse.UnitRay.Origin + (self.mouse.UnitRay.Direction.Unit * cameraDist), self.mouse.UnitRay.Direction.Unit * 1000)
	local hit, position, surfacenormal
	
	local ignoreList = workspace.Tracers:GetDescendants()
	for _,v in pairs(self.char:GetDescendants()) do
		if v:IsA("BasePart") then
			table.insert(ignoreList,v)
		end
	end
	
	if self.config.UseFastCast then
		
	else
		hit, position, surfacenormal = workspace:FindPartOnRayWithIgnoreList(ray,ignoreList)
	end
	
	
	
	local magnitude = (position - ray.Origin).magnitude
	
	local clone = self.gun.BodyAttach.Fire:Clone()
	clone.Parent = self.gun.Muzzle
	clone:Play()
	
	coroutine.wrap(function()
		local totalT = magnitude / self.config.Velocity 
		local totaldt = 0
		local beginV3 = self.gun.Muzzle.Position
		local part = Instance.new("Part")
		part.Size =Vector3.new(0.1,0.1,8)
		part.Color = Color3.new(1,1,1)
		part.Anchored = true
		part.CanCollide = false
		part.CFrame = CFrame.new(beginV3, position)
		part.Parent = workspace.Tracers
		part.Material = Enum.Material.Neon
		
		
		
		
		while totaldt < totalT do
			local dt = game:GetService("RunService").RenderStepped:wait()
			totaldt = totaldt + dt
			part.Position = beginV3:Lerp(position, totaldt / totalT)
		end
		part:Destroy()
		local attach = Instance.new("Attachment")
		attach.CFrame = CFrame.new(position, position - surfacenormal)
		attach.Parent = workspace.Terrain
		local particleEffect = script.ParticleEmitter:Clone()
		particleEffect.Parent = attach
		wait(0.05)
		particleEffect.Enabled = false
		wait(1)
		particleEffect:Destroy()
		clone:Destroy()
	end)()
	
	return hit, position
end

return Gun

And the one requiring it:

function Gun.new(char, gun)
	
	
	
	local self = setmetatable({
		
		char = char;
		gun = gun;
		firing = false;
		fireDT = 0;
		
	}, Gun)
	
	
	self.gun.Parent = workspace
	self.mouse = game.Players.LocalPlayer:GetMouse()
	self.aiming = false
	self.config = require(gun.Configuration)
	
	
	return self
	
end

All help is valued!

1 Like
#2

Your 2nd code snippet seems to be the first one instead of the Main controller.

1 Like
#3

Oh yeah the gun controller and the module Gun are the same name. Probably should change that. Its the second script that is erroring. Main is a different one

#4

I think the problem is that you are calling for a value that has not yet loaded in your metatable. Another thing that could be happening is that you are calling something that yields.

Here is a more detailed explanation:

The error is telling you that you are attempting to yield from within Lua code where there is some C function between the Lua code doing the yielding and the Lua code that resumed the coroutine. To hit this error, what you have to have done is call some C function from Lua, which calls back into Lua code, which then calls coroutine.yield()

#5

So do you have any idea how to fix it. Because in the part were I it errors im just creating the metatable. Do you think something could be erroring there?

#6

Experiment to find out what is yielding and avoid it in your metatable. In this case has something to do with either char or gun.

#7

Ended up being the character. Just had to get it inside the gun module instead.

1 Like