How can I restrict PAC to donators only?

hook.Add("PrePACConfigApply", "donators only", function(ply, outfit_data)
	if not ply:IsDonator() then
		return false, "give us money!"
	end
end)

the code should be in garrysmod/addons/pac_for_donators_only/lua/autorun/server/pac_for_donators_only.lua if the files or folders don't exist, create them

How can I restrict PAC to certain ranks?

-- add/change rank names here in the same format
local ranks = {
	["moderators"] = true,
	["vip"] = true,
	["owner"] = true,
	["admins"] = true,
	["superadmin"] = true,
	["vipadmin"] = true,
}
hook.Add("PrePACConfigApply", "PACRankRestrict", function(ply)
	if not ranks[ply:GetUserGroup()] then
              return false,"Insufficient rank to use PAC."
        end
end)

Make sure to add a hook for PrePACEditorOpen if you also need the editor restricted. Keep in mind PrePACEditorOpen is a clientside hook. (just copy the hook portion and replace PrePACConfigApply with PrePACEditorOpen)

How can I restrict camera movement?

set pac_restrictions on the server to 1 this wont stop cheaters though!

How do I get rid of the editor?

Remove these files:

addons/pac3/lua/editor/*

addons/pac3/lua/autorun/pac_editor_init.lua

this will also get rid of features such as being able to wear outfits on the server

How do I prevent the editor from being opened?

You can do this using the PrePACEditorOpen hook. Example:

hook.Add( "PrePACEditorOpen", "RestrictToSuperadmin", function( ply )
	if not ply:IsSuperAdmin( ) then
		return false
	end
end )

This example allows only superadmins to open the editor. This should be put in lua/autorun. Note that this does not prevent additional editor features, such as wearing on server which can be done through console commands.

How do I attach parts to my entity?

There's a few ways to do it.

using pac.AddEntityClassListener

pac.AddEntityClassListener(class_name, outfit_table, check_function, draw_distance)

Example

pac.AddEntityClassListener("npc_someone", pac.luadata.ReadFile("mygamemode/clothing/pants.txt"))

This makes it so every time you spawn "npc_someone" it will attach the outfit "pants.txt" It's also removed when you remove the npc as well.

using pac.SetupENT

pac.SetupENT(entity_table, owner_override)

Which will add some functions to the entity provided.

The functions added are:

nil = ENT:AttachPACPart(outfit)
nil = ENT:RemovePACPart(outfit)

nil = ENT:SetPACDrawDistance(distance)
number = ENT:GetPACDrawDistance()

nil = ENT:SetShowPACPartsInEditor(boolean)
bool = ENT:GetShowPACPartsInEditor()

part = ENT:FindPACPart(outfit, part_name)
pos, ang = ENT:GetPACPartPosAng(outfit, part_name)

To see what these do see "lua\pac3\core\client\integration_tools.lua"

Example

if CLIENT then 
	local outfit = pac.luadata.ReadFile("pac3/mech.txt")

	pac.SetupENT(ENT) -- this can also be used in initialize using "self" instead of "ENT"
	
	function ENT:Initialize()
		self:AttachPACPart(outfit)
	end

	function ENT:OnRemove()
		self:RemovePACPart(outfit)
	end
end

The outfit table itself is used as a key. You also don't have to use pac.luadata.ReadFile You can also just copy the contents of mech.txt and paste it in a table like so:

local outfit = {*paste here*}

So the outfit data is stored inside the Lua file itself.¨

You can also use pac.SetupSWEP which makes it so the outfit owner is the player instead of the weapon entity itself.

Complete entity example

local outfit = {
-- start of outfit.txt
	[1] = {
	["children"] = {
		[1] = {
			["children"] = {
				[1] = {
					["children"] = {
					},
					["self"] = {
						["ClassName"] = "proxy",
						["UniqueID"] = "3120004463",
						["Expression"] = "hsv_to_color(time()*100)",
						["GlobalID"] = "4180875644",
						["VariableName"] = "Color",
					},
				},
			},
			["self"] = {
				["UniqueID"] = "884479784",
				["GlobalID"] = "1864536752",
				["Position"] = Vector(0, 0, 28),
				["Size"] = 2.175,
				["Color"] = Vector(255, 12, 0),
				["EditorExpand"] = true,
				["Model"] = "models/pac/default.mdl",
				["ClassName"] = "model",
				["Name"] = "ball",
			},
		},
	},
	["self"] = {
		["ClassName"] = "group",
		["OwnerName"] = "self",
		["EditorExpand"] = true,
		["GlobalID"] = "3872319760",
		["UniqueID"] = "3296086797",
		["Name"] = "my outfit",
		["Description"] = "add parts to me!",
	},
},
-- end of outfit.txt
}

local ENT = {}

ENT.Base = "base_anim"
ENT.Type = "anim"

ENT.ClassName = "pac_test"

if CLIENT then
	pac.SetupENT(ENT)
	
	function ENT:Draw()
		self:DrawModel()
	end
	
	function ENT:Think()
		-- manipualte it here!
		if self.ball then
			self.ball:SetSize(2 + math.sin(RealTime()))	
		end	
	end
	
	function ENT:Initialize()
		self:AttachPACPart(outfit)
		
		-- find the ball part
		self.ball = self:FindPACPart(outfit, "ball")		
	end
	
	function ENT:OnRemove()
		self:RemovePACPart(outfit)	
	end
end

if SERVER then
	function ENT:Initialize()
		self:SetModel("models/props_borealis/bluebarrel001.mdl")
		self:PhysicsInit(SOLID_VPHYSICS)
		self:SetMoveType(MOVETYPE_NONE)
	end
end

scripted_ents.Register(ENT, ENT.ClassName)