Scene inheritance issue

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Godot Version

Godot Engine v4.6.2-stable

Question

Imagine I have these scenes: turret.tscn, projectile_turret.tscn, ray_turret.tscn.

projectile_turret.tscn and ray_turret.tscn inheirt turret.tscn. Yet, both of these scenes have their own special nodes for their own needs.

Now Imagine more scenes: example_projectile_turret.tscn which inherits projectile_turret.tscn. and example_ray_turret.tscn which inherits ray_turret.tscn.

The problem is when I try to .instantiate() the example_projectile_turret.tscn in-game it actually has nodes from ray_turret.tscn.

Which makes no sense because the Explorer of example_projectile_turret.tscn looks like this:

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And the .tscn file when opened in text editor looks like this:

[gd_scene format=3 uid="uid://cs6fs5icr287d"]

[ext_resource type="PackedScene" uid="uid://bkkfw8fxxsff7" path="res://scripts/turrets/projectile_turret.tscn" id="1_iej6j"]
[ext_resource type="PackedScene" uid="uid://c511kx2fuxds7" path="res://scripts/turrets/bullet/resources/example_bullet.tscn" id="2_vdgmv"]
[ext_resource type="Resource" uid="uid://cu5w6rqx235h" path="res://scripts/turrets/upgrades/resources/example_projectile_turret_upgrade.tres" id="3_15rcu"]

[node name="turret" unique_id=505394040 instance=ExtResource("1_iej6j")]
projectile = ExtResource("2_vdgmv")
turret_id = "turret"
turret_name = "Turret"
upgrade_data = ExtResource("3_15rcu")
attack_range = 15.0

Meanwhile in-game it shows that it the actual added turret scene has nodes from ray_turret.tscn.

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And to prove more that I indeed instantiate example_projectile_turret.tscn here’s my code:

extends TextureButton

@export var turret : PackedScene

# ... this script is part of UI which is in autoload CanvasLayer

func _button_up():
	Gameplay.current_money -= price

	var d = turret.instantiate()
	d.position = get_parent().click_position
	d.turret_price = price
	get_parent().turrets.add_child(d)
	
	Gameplay.close_buy_turret()

And the screenshot from inspector:

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More weirdly… if I re-open my project then example_projectile_turret.tscn changes and inherits ray_turret.tscn when I do not need it to be like that.

Re-creating example_projectile_turret.tscn by right-mouse-clicking on the projectile_turret.tscn and creating a scene from it gives the same result.

WHAT THE HELL?

2

Apparently

projectile_turret.tscn has

[gd_scene format=3 uid="uid://bkkfw8fxxsff7"]

ray_turret.tscn has

[gd_scene format=3 uid="uid://bkkfw8fxxsff7"]

Those two are the same uids

The Godot Engine is confused as hell. It tries to inherit nodes from ray_turret.tscn in example_projectile_turret.tscn becuse ray_turret.tscn and projectile_turret.tscn have same uids.

How do I generate new random uid?

EDIT: I opened my other Godot Engine project then I opened some random .tscn file and copied uid from there. Then I pasted this uid into projectile_turret.tscn and example_projectile_turret.tscn. Therefore, now example_projectile_turret.tscn inherits projectile_turret.tscn instead of ray_turret.tscn.

This is the solution.