user_interface/button_selection.gd

@@ -0,0 +1,86 @@
+@tool
+class_name ItemSelection extends HFlowContainer
+
+##
+## An item has been selected via GUI selection or [method select_item].
+##
+signal item_selected(index: int)
+
+var _button_group := ButtonGroup.new()
+
+##
+## Number of items in the selection.
+##
+var item_count: int:
+	get:
+		return _button_group.get_buttons().size()
+
+func _get_configuration_warnings() -> PackedStringArray:
+	var warnings := PackedStringArray()
+	var children := get_children()
+
+	if not(children.is_empty()):
+		var self_class_name := get_class()
+
+		for child in get_children():
+			warnings.append(
+				"{0} can only have Button children, but {1} is of type {2}".format(
+					[self_class_name, child.name, child.get_class()]))
+
+	return warnings
+
+##
+## Adds a new item with no text and only [code]icon[/code] as the icon to the selection.
+##
+func add_icon_item(icon: Texture2D) -> void:
+	var child_count := get_child_count()
+	var button := Button.new()
+
+	button.icon = icon
+	button.icon_alignment = HORIZONTAL_ALIGNMENT_CENTER
+	button.toggle_mode = true
+	button.button_group = _button_group
+	button.button_pressed = child_count == 0
+
+	button.pressed.connect(func () -> void: select_item(child_count))
+	add_child(button)
+
+##
+## Returns the icon used by the item at [code]index[/code].
+##
+## An assertion is raised if [code]index[/code] is out of bounds from the item count.
+##
+func get_item_icon(index: int) -> Texture2D:
+	var buttons := _button_group.get_buttons()
+
+	assert(index < buttons.size(), "index out of range")
+
+	var button := buttons[index] as Button
+
+	return null if (button == null) else button.icon
+
+##
+## Returns the currently selected item index or [code]-1[/code] if no item is selected. 
+##
+func get_selected_item() -> int:
+	var pressed_button := _button_group.get_pressed_button()
+
+	return -1 if (pressed_button == null) else pressed_button.get_index()
+
+##
+## Selects the item at [code]index[/code], emitting [signal item_selected] at the end.
+##
+## An assertion is raised if [code]index[/code] is out of bounds from the item count.
+##
+func select_item(index: int) -> void:
+	var buttons := _button_group.get_buttons()
+
+	assert(index < buttons.size(), "index out of range")
+
+	var pressed_button := _button_group.get_pressed_button()
+
+	if pressed_button != null:
+		pressed_button.set_pressed_no_signal(false)
+
+	buttons[index].set_pressed_no_signal(true)
+	item_selected.emit(index)

user_interface/worker_prompt.gd

@@ -1,10 +1,5 @@
 class_name WorkerPrompt extends Control
 
-##
-##
-##
-signal prompt_completed()
-
 ##
 ##
 ##
@@ -49,6 +44,4 @@ func prompt(display_message: String, steps: Array) -> void:
 		await get_tree().process_frame
 
 	_worker_thread.wait_to_finish()
-	prompt_completed.emit()
 	hide()
-