Having problems with getting mouse direction and firing bullet in that direction

Help and Feedback Scripting Support
#1

You can write your topic however you want, but you need to answer these questions:

  1. What do you want to achieve? Make a gun that fires a part called bullet. The bullet comes from the handle and is aimed at the mouse direction.

  2. What is the issue? I keep getting the error “ServerScriptService.ShootReceiver:20: attempt to perform arithmetic (sub) on Instance and Vector3”

If you need the client script please let me know as im new to posting on devforum.

-- VARIABLES --
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Shoot = ReplicatedStorage:WaitForChild("Shoot")
local gun = game.Workspace:WaitForChild("Glock")
local bullet = ReplicatedStorage:WaitForChild("Bullet")
local handle = gun:WaitForChild("Handle").Position
local ExitPoint = gun:WaitForChild("ExitPoint").Position

-- MAIN --
Shoot.OnServerEvent:Connect(function(mousepos)
	local bulletSpeed = 500
	local GBullet = bullet:Clone()

	GBullet.Parent = game.Workspace
	print("Bullet is in workspace")

	-- Calculate the bullet's initial position based on the ExitPoint and direction
	GBullet.CFrame = CFrame.new(handle, Vector3.new(mousepos))

	local bulletDir = CFrame.new(Vector3.new(mousepos - ExitPoint))
	GBullet.Velocity = bulletDir * bulletSpeed
	print("Gun Fired")
	Shoot:FireClient(mousepos)
end)
#2

the error means that you are trying to subract a vector3 value to an instance

#3

maybe do

local bulletDir = CFrame.new(Vector3.new(mousepos.Magnitude- ExitPoint))
GBullet.Velocity = bulletDir * bulletSpeed
print("Gun Fired")
Shoot:FireClient(mousepos)
#4

i am now getting this error "Magnitude is not a valid member of Player “Players.Noulted”

#5

You forgot to put the position of the handle

This one is wrong “mousepos” here is the player not the mouse’s position you sent from client it have to be:

Shoot.OnServerEvent:Connect(function(player, mousepos)
#6

You could also do something like this:

local cf = CFrame.new(pos1, pos2)
GBullet.Velocity = cf.LookVector*speed