Tracer is not showing

Help and Feedback Scripting Support
, ,
#1

So I made this rifle, nothing is wrong with it but my only problem is the tracer. Here’s my script:

local equipped = false

script.Parent.Equipped:Connect(function()
	equipped = true
	print(equipped)
end)

script.Parent.Unequipped:Connect(function()
	equipped = false
	print(equipped)
end)

local fired = false
local fireTime = 0
local eventTime = 0
local fireRate = 1

local function countCheck()
	if fireTime-eventTime >= fireRate or fireRate-(fireTime-eventTime) <= 1/30 then
		return true
	end
end

script.Parent.MouseClicked.OnServerEvent:Connect(function(player, mousePos)
	if not player.Character == script.Parent.Parent then return end
end)

local function newBullet()
	local bullet = Instance.new("Part")
	bullet.Name = "Bullet"
	bullet.Parent = workspace.BulletStorage
	bullet.Size = Vector3.new(0.3, 0.125, 0.125)
	bullet.Transparency = 0
	bullet.Position = script.Parent.Rifle.ShootingPoint.Position
	bullet.Color = Color3.new(1, 1, 0)
	bullet.Material = Enum.Material.Neon
	bullet.CanCollide = false
	bullet:SetNetworkOwner(nil)
	return bullet
end

local function applyPhysics(bullet, mousePos)
	local muzzleVelocity = 300
	local direction = CFrame.new(bullet.Position, mousePos)
	
	local horizontalSpread = 4
	local verticalSpread = 4
	
	horizontalSpread = math.rad(horizontalSpread)
	verticalSpread = math.rad(verticalSpread)
	
	direction = direction*CFrame.Angles(horizontalSpread, verticalSpread, 0)
	direction = direction.LookVector
	
	local mass = bullet:GetMass()
	bullet:ApplyImpulse(direction*mass*muzzleVelocity)
end

local function fireAmmo(player, mousePos)
	
	local bullet = newBullet()
	applyPhysics(bullet, mousePos)
	
	bullet.Touched:Connect(function(hit)
		if hit.Parent:FindFirstChild("Humanoid") then
			hit.Parent:FindFirstChild("Humanoid"):TakeDamage(15)
		end
	end)

	local RNS = game:GetService("RunService")
	local lastPos = bullet.Position
	local rayFilter = RaycastParams.new()
	rayFilter.FilterDescendantsInstances = {player.Character, workspace.BulletStorage}
	rayFilter.FilterType = Enum.RaycastFilterType.Blacklist

	local range = 300
	
	local tracer = workspace.Visual:GetChildren()[1]
	
	if tracer then
		tracer.Parent = workspace.BulletStorage
	else
		tracer = Instance.new("Part", workspace.BulletStorage)
		tracer.Anchored = true
		tracer.CanCollide = false
		tracer.Position = bullet.Position + Vector3.new(0, 1e7, 0)
	end
	
	tracer.BrickColor = BrickColor.new("Gold")
	tracer.Material = Enum.Material.Neon
	tracer.Position = bullet.Position*Vector3.new(0, 2, 0)
	
	while range > 0 do
		
		task.wait()
		
		local rayLength = (lastPos-bullet.Position).Magnitude
		range = range - rayLength
		lastPos = bullet.Position

		local rayPos = bullet.Position
		local rayDirection = CFrame.new(lastPos, rayPos).LookVector
		
		tracer.Size = Vector3.new(.1, .1, (lastPos-rayPos).Magnitude)
		tracer.CFrame = CFrame.new(rayPos*lastPos)*CFrame.new(0, 0, -(lastPos-rayPos).Magnitude/2)
		
		local ray = workspace:Raycast(lastPos, rayDirection*rayLength, rayFilter)
		
		if ray then
			bullet:Destroy()
			local hit = ray.Instance
			print(hit:GetFullName())
			local model = hit:FindFirstAncestorOfClass("Model")
			if model then
				local humanoid = model:FindFirstChildWhichIsA("Humanoid") or nil
				if humanoid then
					if hit.Head then
						humanoid:TakeDamage(45)
					else
						humanoid:TakeDamage(15)
					end
					return true
				end
			end
			task.spawn(function()
				task.wait()
				task.wait()
				tracer.Position = Vector3.new(0, 1e7, 0)
				tracer.Parent = workspace.Visual
			end)
			break
		end
		
		if bullet.Parent == nil then
			bullet:Destroy()
			break
		end
		
		lastPos = bullet.Position
		
	end
	
	task.spawn(function()
		task.wait()
		task.wait()
		tracer.Position = Vector3.new(0, 1e7, 0)
		tracer.Parent = workspace.Visual
	end)

	if bullet then bullet:Destroy() end
end

script.Parent.MouseClicked.OnServerEvent:Connect(fireAmmo)

And the local script:

local player = game.Players.LocalPlayer

local screen = Instance.new("ScreenGui")
screen.Name = "SgreenGUI"
screen.Parent = player.PlayerGui
screen.Enabled = false

local GUI = Instance.new("ImageLabel")
GUI.Name = "GUI"
GUI.Parent = screen
GUI.Visible = true
GUI.AnchorPoint = Vector2.new(0.5, 0.5)
GUI.Position = UDim2.new(0.5, 0, 0.5, 0)
GUI.Size = UDim2.new(0, 100, 0, 100)
GUI.Image = "rbxassetid://9551517714"
GUI.BackgroundTransparency = 1

local click = script.Parent["Gun Click"]
local gunshot = script.Parent.Gunshot

local mouse = player:GetMouse()

local equipped = false
local firing = false

script.Parent.Equipped:Connect(function()
	equipped = true
	screen.Enabled = true
	click:Play()
	print(equipped)
end)

script.Parent.Unequipped:Connect(function()
	equipped = false
	screen.Enabled = false
	print(equipped)
end)

mouse.Button1Down:Connect(function()
	if equipped and not firing then
		firing = true
		script.Parent["Gun Click"]:Play()
		while firing == true do
			mouse.Button1Up:Connect(function()
				firing = false
			end)
			mouse.TargetFilter = workspace.BulletStorage
			script.Parent.MouseClicked:FireServer(mouse.Hit.Position)
			print("Pew!")
			gunshot:Play()
			task.wait(0.15)
		end	
	end
	
end)

There’s no errors. Any tips on how to fix this issue?

1 Like
#2

What is the lag like in your game? If there is even a little bit of lag then something shot at 300 studs/second may not be visible. You could try it on a blank baseplate to check this out.

Also try it with a speed of 10 so you can actually see if it’s moving correctly.

1 Like
#3

Still doesn’t work on a blank baseplate.

I set the speed at 300 looking at the script in the video. To be honest, I don’t have that much experience making guns in Roblox. I followed every instruction in the video so for me, it’s hard to tell what I did wrong.

Here’s the video I got it from:

(Sorry about the lack of sound in this video):

The tracer doesn’t show.