How to make a weapon/SWEP

This guide will show you how to make your own SWEP

Materials

A .txt file editer that can edit .lua files
I recomend Notepad + + since its basicly a coding tool
the download link is here[notepad-plus-plus.org]

A 3D modeling program such as blender[www.blender.org](If your making your own models)

The Codeing

Since it may be your first time making a SWEP or even coding, we will start with a simple pistol

First, go to the drive where you instaled the game(Mine is C:) > Program Files(x86) > Steam > steamapps > common > GarrysMod > garrysmod > addons
and make a folder there
You can name it whatever you want as long it doesnt have any spaces on it
In the folder, make a new folder called lua, and inside that lua folder, add a new folder named weapons, now inside that weapons folder, make a text documument and change the file extention to .lua and rename it

Open the lua file, and type this

SWEP.PrintName = "weapon name" -- The name of the weapon
    
SWEP.Author = "your name"
SWEP.Contact = "your email adress"--Optional
SWEP.Purpose = "add your purpose here"
SWEP.Instructions = "add instructions here."
SWEP.Category = "catorgory name" --This is required or else your weapon will be placed under "Other"

This will give us the name, the author(you), the purpose, the instructions, and what catagory will it be in

Then Type this

SWEP.Spawnable= true --Must be true
SWEP.AdminOnly = false

These two lines will manage if we can spawn this and if ithis weapon is admin only

Then type

SWEP.Base = "weapon_base"

local ShootSound = Sound("Weapon_Pistol.Single")
SWEP.Primary.Damage = 5 --The amount of damage will the weapon do
SWEP.Primary.TakeAmmo = 1 -- How much ammo will be taken per shot
SWEP.Primary.ClipSize = 18  -- How much bullets are in the mag
SWEP.Primary.Ammo = "Pistol" --The ammo type will it use
SWEP.Primary.DefaultClip = 18 -- How much bullets preloaded when spawned
SWEP.Primary.Spread = 0.1 -- The spread when shot
SWEP.Primary.NumberofShots = 1 -- Number of bullets when shot
SWEP.Primary.Automatic = false -- Is it automatic
SWEP.Primary.Recoil = .2 -- The amount of recoil
SWEP.Primary.Delay = 0.1 -- Delay before the next shot
SWEP.Primary.Force = 100

This is the properties of the attack

Now for the secondery attack,
You must add this to your weapon, even though we wont be adding a secondery attack

SWEP.Secondary.ClipSize		= -1
SWEP.Secondary.DefaultClip	= -1
SWEP.Secondary.Automatic	= false
SWEP.Secondary.Ammo		= "none"

Now add this

SWEP.Slot = 2
SWEP.SlotPos = 1
SWEP.DrawCrosshair = true --Does it draw the crosshair
SWEP.DrawAmmo = true
SWEP.Weight = 5 --Priority when the weapon your currently holding drops
SWEP.AutoSwitchTo = false
SWEP.AutoSwitchFrom = false

Slot is what weapon hotbar will it be placed in
SlotPos is the place inside the hotbar

And this

SWEP.ViewModelFlip		= false
SWEP.ViewModelFOV		= 60
SWEP.ViewModel			= "models/weapons/c_pistol.mdl"
SWEP.WorldModel			= "models/weapons/w_pistol.mdl"
SWEP.UseHands           = true

SWEP.HoldType = "Pistol" 

SWEP.FiresUnderwater = false

SWEP.ReloadSound = "sound/epicreload.wav"

SWEP.CSMuzzleFlashes = true

Initializeing code

function SWEP:Initialize()
util.PrecacheSound(ShootSound) 
util.PrecacheSound(self.ReloadSound) 
self:SetWeaponHoldType( self.HoldType )
end 

The primary attack

function SWEP:PrimaryAttack()
 
if ( !self:CanPrimaryAttack() ) then return end
 
local bullet = {} 
bullet.Num = self.Primary.NumberofShots 
bullet.Src = self.Owner:GetShootPos() 
bullet.Dir = self.Owner:GetAimVector() 
bullet.Spread = Vector( self.Primary.Spread * 0.1 , self.Primary.Spread * 0.1, 0)
bullet.Tracer = 1
bullet.Force = self.Primary.Force 
bullet.Damage = self.Primary.Damage 
bullet.AmmoType = self.Primary.Ammo 
 
local rnda = self.Primary.Recoil * -1 
local rndb = self.Primary.Recoil * math.random(-1, 1) 
 
self:ShootEffects()
 
self.Owner:FireBullets( bullet ) 
self:EmitSound(ShootSound)
self.Owner:ViewPunch( Angle( rnda,rndb,rnda ) ) 
self:TakePrimaryAmmo(self.Primary.TakeAmmo) 
 
self:SetNextPrimaryFire( CurTime() + self.Primary.Delay ) 
end 

Secondery attack

function SWEP:SecondaryAttack()

end

Reloading

function SWEP:Reload()
self:EmitSound(Sound(self.ReloadSound)) 
        self.Weapon:DefaultReload( ACT_VM_RELOAD );
end

[idiot 3 alt (5)]

https://youtu.be/DdmNYNkcwKE

[Mr. Blue]

how do i just add a reload sound?

[Bald from Omizzers]

Bullet spread i think

[Bloodbitt ΘΔ]

what does SWEP.Spread measure?

[redboi]

i get an unexpected symbol near '=' in the error menu and it cant be spawned in the spawnmenu

[Yocp123]

I am just trying to make the axe and sword from spookys jumpscare mansion but I still can't figure it out

[Ducky1234]

is it required admin false?

[no]

how do i change the model of the bullets?

[Ducky1234]

is there a easier way?

[Mei]

protip: if you use linux, ~/.steam/steam/steamapps/common/GarrysMod/garrysmod/addons