Extract photo mode to a reusable addon

PhotoMode/PhotoMode.gd

@@ -0,0 +1,66 @@
+extends Node3D
+
+@export var camera_speed := 15.0
+@export var mouse_sensitivity := 0.005
+
+var is_active := false
+
+var _camera_photo: Camera3D
+var _camera_previous: Camera3D
+
+
+func _ready() -> void:
+	process_mode = Node.PROCESS_MODE_ALWAYS
+	set_process_input(OS.is_debug_build())
+	set_process(false)
+
+
+func _input(event: InputEvent) -> void:
+	if event is InputEventKey and event.keycode == KEY_F10:
+		if event.is_pressed() and not event.is_echo():
+			_toggle_camera_mode()
+
+
+func _process(delta: float) -> void:
+	var speed_multiplier := 1.0 + float(Input.is_key_pressed(KEY_SHIFT)) * 3.0
+
+	var direction := Vector3.ZERO
+	direction += Vector3.FORWARD if Input.is_key_pressed(KEY_W) else Vector3.ZERO
+	direction += Vector3.LEFT if Input.is_key_pressed(KEY_A) else Vector3.ZERO
+	direction += Vector3.BACK if Input.is_key_pressed(KEY_S) else Vector3.ZERO
+	direction += Vector3.RIGHT if Input.is_key_pressed(KEY_D) else Vector3.ZERO
+	direction += Vector3.DOWN if Input.is_key_pressed(KEY_Q) else Vector3.ZERO
+	direction += Vector3.UP if Input.is_key_pressed(KEY_E) else Vector3.ZERO
+
+	#TODO: issue, this is past mouse velocity, thereś lag, is it due to it?
+	var rotation_input = -Input.get_last_mouse_velocity().x * mouse_sensitivity
+	var tilt_input = -Input.get_last_mouse_velocity().y * mouse_sensitivity
+
+	var euler_rotation = _camera_photo.global_transform.basis.get_euler()
+	euler_rotation.x += tilt_input * delta
+	euler_rotation.x = clamp(euler_rotation.x, -PI + 0.01, PI - 0.01)
+	euler_rotation.y += rotation_input * delta
+	_camera_photo.global_transform.basis = Basis.from_euler(euler_rotation)
+
+	_camera_photo.global_position += _camera_photo.global_transform.basis * direction * delta * camera_speed *speed_multiplier
+
+
+func _toggle_camera_mode() -> void:
+	is_active = not is_active
+	set_process(is_active)
+	get_tree().paused = is_active
+
+	for node in get_tree().get_nodes_in_group("camera_mode_toggle"):
+		node.visible = not is_active
+
+	if is_active:
+		_camera_previous = get_viewport().get_camera_3d()
+		_camera_photo = Camera3D.new()
+		add_child(_camera_photo)
+		_camera_photo.current = true
+		_camera_photo.fov = _camera_previous.fov
+		_camera_photo.global_transform = _camera_previous.global_transform
+
+	else:
+		_camera_previous.current = true
+		_camera_photo.queue_free()

PhotoMode/PhotoMode.tscn

@@ -0,0 +1,7 @@
+[gd_scene load_steps=2 format=3 uid="uid://dgbsqo65v7aof"]
+
+[ext_resource type="Script" path="res://PhotoMode/PhotoMode.gd" id="1_2h2of"]
+
+[node name="PhotoMode" type="Node3D"]
+process_mode = 3
+script = ExtResource("1_2h2of")

PhotoMode/PhotoMode.tscn.depren

@@ -0,0 +1,3 @@
+[gd_scene load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://PhotoMode/PhotoMode.gd" id="1_iqqgo"]

project.godot

@@ -52,7 +52,7 @@ config/icon="res://icon.png"
 
 [autoload]
 
-CameraMode="*res://CameraMode/CameraMode.tscn"
+PhotoMode="*res://PhotoMode/PhotoMode.tscn"
 
 [display]