This gun script works perfectly in studio but only half works in testing or in a server.

--[[
	This gun scripted by: TheDoubleJ0Jake0Jam
	
	Thanks for using my gun script.
	
	Ammo and reloading are the final update plans for this script, then I will move on to bigger projects.
	
	I created this gun as a way for me to learn how to script tools.
	
	It was suprisingly easy.
--]]


--player variables
local player = game.Players.LocalPlayer
local char = player.Character
local mouse = player:GetMouse()

--gun variables
local gun = script.Parent 
local ammo = 10
local reloading = false
local auto = false -- set to false if you do not want the gun to be automatic
local firing = false


if not game.workspace:FindFirstChild("Bullet") then
	local bullet_storage = Instance.new("Folder", workspace)
	bullet_storage.Name = "Bullet"
else
	--nothing
end

function getBullet()
	gun.Handle.Fire:Play() --when in a test server it errors here
	local mh = mouse.Hit
	local B = Instance.new("Part", workspace.Bullet)
	B.CFrame = gun.Main.CFrame + (char.Torso.CFrame.lookVector * 2)
	B.CFrame = CFrame.new(B.Position, mh.p)
	B.FormFactor = "Custom"
	B.Size = Vector3.new(0.2, 0.2, 0.2)
	B.BrickColor = BrickColor.Black()
	B.CanCollide = true
	local velo = Instance.new("BodyVelocity", B)
	velo.velocity = B.CFrame.lookVector * 120
	velo.maxForce = Vector3.new(math.huge, math.huge, math.huge)
	B.Touched:connect(function(hit)
		local humanoid = hit.Parent:FindFirstChild("Humanoid")
		if humanoid then
			humanoid:TakeDamage(10, 25)
		end
	end)
end

function autofire()
	while firing == true do
		wait(0)
		gun.Handle.Fire:Play()
		local mh = mouse.Hit
		local B = Instance.new("Part", workspace.Bullet)
		B.CFrame = gun.Main.CFrame + (char.Torso.CFrame.lookVector * 2)
		B.CFrame = CFrame.new(B.Position, mh.p)
		B.FormFactor = "Custom"
		B.Size = Vector3.new(0.2, 0.2, 0.2)
		B.BrickColor = BrickColor.Black()
		B.CanCollide = true
		local velo = Instance.new("BodyVelocity", B)
		velo.velocity = B.CFrame.lookVector * 120
		velo.maxForce = Vector3.new(math.huge, math.huge, math.huge)
		B.Touched:connect(function(hit)
			local humanoid = hit.Parent:FindFirstChild("Humanoid")
			if humanoid then
				humanoid:TakeDamage(10, 25)
			end
		end)
	wait(0.005)
	end
end

mouse.Button1Down:connect(function()
	if auto == true then
		firing = true
		autofire()
	else
		getBullet()-- and it errors here
	end
end)

mouse.Button1Up:connect(function()
	if firing == true then
		firing = false
		print(auto)
	end
end)

local uis = game:GetService("UserInputService") -- allows firemode change
uis.InputBegan:connect(function(inputObject, gameProcessedEvent)
	if inputObject.KeyCode == Enum.KeyCode.V then
		if auto == true then
			auto = false
		else
			auto = true
		end
	end
end)

error is " attempt to index upvalue char a nil value"

Those are the only 2 lines showing an error in output.

When in test server it places a part in the center of the baseplate. It doesn't add velocity, and the hit function is not called. The size of the bullet should be, "0.2, 0.2, 0.2". The size created in test mode is 2x4 studs. Any help would be appreciated.

Edit: Removed variable "char" gun script now works.

AnonymousEdited