First commit 🎉

addons/popochiu/editor/popups/create_object/create_room/create_room.gd

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+@tool
+extends "res://addons/popochiu/editor/popups/create_object/create_object.gd"
+## Creates a [PopochiuRoom].
+## 
+## It creates all the necessary files to make a [PopochiuRoom] to work and
+## to store its state:
+## - room_xxx.tscn
+## - room_xxx.gd
+## - room_xxx.tres
+## - room_xxx_state.gd
+
+var _new_room_name := ""
+var _factory: PopochiuRoomFactory
+var _show_set_as_main := false : set = set_show_set_as_main
+
+@onready var set_as_main_panel: PanelContainer = %SetAsMainPanel
+@onready var rtl_is_main = %RtlIsMain
+@onready var btn_is_main: CheckBox = %BtnIsMain
+
+
+#region Godot ######################################################################################
+func _ready() -> void:
+	_info_files = _info_files.replace("&t", "room")
+	
+	super()
+
+
+#endregion
+
+#region Virtual ####################################################################################
+func _create() -> Object:
+	if _new_room_name.is_empty():
+		error_feedback.show()
+		return null
+	
+	# Setup the prop helper and use it to create the prop ------------------------------------------
+	_factory = PopochiuRoomFactory.new()
+	if _factory.create(_new_room_name, btn_is_main.button_pressed) != ResultCodes.SUCCESS:
+		# TODO: show a message in the popup!
+		return null
+	await get_tree().create_timer(0.1).timeout
+	
+	return _factory.get_obj_scene()
+
+
+func _on_about_to_popup() -> void:
+	PopochiuEditorHelper.override_font(rtl_is_main, "normal_font", "main")
+	PopochiuEditorHelper.override_font(rtl_is_main, "bold_font", "bold")
+	PopochiuEditorHelper.override_font(rtl_is_main, "mono_font", "source")
+	
+	_check_if_first_room()
+	info.hide()
+
+
+func _set_info_text() -> void:
+	_new_room_name = _name.to_snake_case()
+	_target_folder = PopochiuResources.ROOMS_PATH.path_join(_new_room_name)
+	
+	info.text = (_info_text % _target_folder).replace("&n", _new_room_name)
+
+
+#endregion
+
+#region SetGet #####################################################################################
+func set_show_set_as_main(value: bool) -> void:
+	_show_set_as_main = value
+	
+	if is_instance_valid(set_as_main_panel):
+		set_as_main_panel.visible = _show_set_as_main
+
+
+#endregion
+
+#region Private ####################################################################################
+func _check_if_first_room() -> void:
+	# Display a checkbox if no main scene has been defined for the project yet
+	_show_set_as_main = ProjectSettings.get_setting(PopochiuResources.MAIN_SCENE, "").is_empty()
+
+
+#endregion

addons/popochiu/editor/popups/create_object/create_room/create_room.gd.uid

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+uid://bb4d8aaeb33b2

addons/popochiu/editor/popups/create_object/create_room/create_room.tscn

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+[gd_scene load_steps=3 format=3 uid="uid://bsl3blhb8sw5"]
+
+[ext_resource type="PackedScene" uid="uid://c1pfl2gwjjot5" path="res://addons/popochiu/editor/popups/create_object/create_object.tscn" id="1_t4kty"]
+[ext_resource type="Script" path="res://addons/popochiu/editor/popups/create_object/create_room/create_room.gd" id="2_s1x3y"]
+
+[node name="CreateRoomConfirmation" instance=ExtResource("1_t4kty")]
+script = ExtResource("2_s1x3y")
+title = "Create PopochiuRoom"
+
+[node name="Label" parent="PanelContainer/VBoxContainer/InputContainer" index="0"]
+text = "Room name:"
+
+[node name="ErrorFeedback" parent="PanelContainer/VBoxContainer" index="1"]
+text = "A room name is mandatory!"
+
+[node name="Guide" parent="PanelContainer/VBoxContainer" index="3"]
+text = "Use a descriptive name in PascalCase (e.g. Garage or CasinoInterior)."
+
+[node name="SetAsMainPanel" type="PanelContainer" parent="PanelContainer/VBoxContainer" index="4"]
+unique_name_in_owner = true
+visible = false
+layout_mode = 2
+
+[node name="HBoxContainer" type="HBoxContainer" parent="PanelContainer/VBoxContainer/SetAsMainPanel" index="0"]
+layout_mode = 2
+
+[node name="RtlIsMain" type="RichTextLabel" parent="PanelContainer/VBoxContainer/SetAsMainPanel/HBoxContainer" index="0"]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_horizontal = 3
+bbcode_enabled = true
+text = "You don't have a main scene. Do you want this room to become the main scene of the project? This will modify [code]ProjectSettings.application/run/main_scene[/code]."
+fit_content = true
+scroll_active = false
+
+[node name="BtnIsMain" type="CheckBox" parent="PanelContainer/VBoxContainer/SetAsMainPanel/HBoxContainer" index="1"]
+unique_name_in_owner = true
+layout_mode = 2