Trying to weld an entity to another entity.

Garry's Mod coding
#1

I want to weld the top entity to the bottom entity with lua.
Does anyone know what I’m doing wrong?

#2

Making a picture of the code is a very bad idea. Do you expect us to retype it to test it?

#3

You haven’t told us what the problem is

#4

Assuming the rotating blade at the top does not weld and either falls off or stays in midair?

#5

Right, it simply doesn’t weld.

The highlighted part in the picture is what I’m working on. When I spawn the entity the top will fall off and there are no errors. Here’s the link to the wiki, http://wiki.garrysmod.com/page/constraint/Weld

The code for the init.lua




AddCSLuaFile("cl_init.lua")
AddCSLuaFile("shared.lua")
include("shared.lua")

function ENT:Initialize()

	self:SetModel( "models/props_c17/lampShade001a.mdl" )
	self:PhysicsInit( SOLID_VPHYSICS )
	self:SetMoveType( MOVETYPE_VPHYSICS )
	self:SetSolid( SOLID_VPHYSICS )

	local phys = self:GetPhysicsObject()
	if (phys:IsValid()) then
	phys:SetMass( 50 )
	phys:Wake()
	end

	local ent = ents.Create( "turret_gun" )

	if (  !IsValid( ent ) ) then return end
	ent:SetPos( self:GetPos() + Vector(0,0,5) )
	ent:Spawn()
	
	constraint.Weld( self, ent, 0, 0, 0, false, false )
	
end
#6

Maybe constraints are removed after entity initialization? Try applying this after initialization is complete, with a manually called function.

#7

I’d say your entity isn’t valid until next frame.

local weld = constraint.Weld( self, ent, 0, 0, 0, false, false )
print( IsValid( weld ), type( weld ) )

try this:
timer.Simple( 0, function() if IsValid( ent ) && IsValid( self ) then constraint.Weld( self, ent, 0, 0, 0, false, false ) end end )