A little help with bullet tracers

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1

Hello everyone, for a while I felt my guns were a little boring, so I decided to spice them up with some bullet tracers. While I found a way to handle them, I noticed they weren’t lining up with where the bullet actually landed, getting closer and closer the further you went. As seen here.

The problem was that the origin of the bullet was the shooter’s head, to prevent players from sticking the gun barrel out of a corner and being unhittable. Every gun has an attachment which acts as the fire point for the tracers. Nothing I could do resulted in what I wanted. Code below.

local tweenService = game:GetService("TweenService")

local module = {}

module.Ballistics = {}
local ballistics = module.Ballistics

ballistics.MakeTracer = function(bulletPart, origin)
	bulletPart.Parent = workspace.Ignore
	bulletPart.CFrame = CFrame.new(bulletPart.Position, origin.WorldPosition)
	
	local dist = (origin.WorldPosition - bulletPart.Position).Magnitude
	local goals = {}
	goals.Length = 0
	goals.Thickness = 0
	
	local LHA = Instance.new("LineHandleAdornment")
	LHA.Thickness = 5
	LHA.Length = dist
	LHA.Adornee = bulletPart
	LHA.Parent = bulletPart
	LHA.Color3 = Color3.fromRGB(218, 133, 65)
	
	local tween = tweenService:Create(LHA, TweenInfo.new(1), goals)
	wait(0.1)
	tween:Play()
	tween.Completed:Connect(function()
		bulletPart:Destroy()
	end)
end

function ballistics:MakeBullet(sourcePos, toPos, maxDist)
	local bullet = Instance.new("Part")
	bullet.Parent = workspace.Ignore
	bullet.Transparency = 1
	bullet.CanCollide = false
	bullet.Size = Vector3.new(0.25, 0.25, 1.25)
	bullet.Anchored = true
	bullet.CFrame = CFrame.new(sourcePos, toPos)
	
	bullet.Position = bullet.Position + bullet.CFrame.LookVector * maxDist
	toPos = bullet.CFrame
	return toPos, bullet
end

ballistics.Fire = function(user, config, mousePos, gun) 
    --user is the player's character
	--config is the module that holds all the gun's stats. Think damage and/or magazine capacity
	--mousePos is the player's mouse cframe
	--gun is the tool instance
	local fromPos = user.Head.Position
	
	local endPoint, bullet = ballistics:MakeBullet(fromPos, mousePos.p, 5000)
	coroutine.resume(coroutine.create(ballistics.MakeTracer), bullet, gun.weapon_model.Main.FirePoint) 
	--weapon_model is the Model instance that holds the gun's parts
	--Main is the, well, main part of the model
	--FirePoint is the attachment where the tracer should originate from
end

return module

The code is a heavily modified snippet of what the module actually is, for simplicity. If I didn’t explain something enough, let me know!

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2

Try using a custom particle or a trail maybe. It’s not perfect but it’ll work. If that won’t work, maybe try experimenting with rays.

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