Refactor pause and settings menu input handling to use UiManager for screen management

autoloads/ui_manager.gd

@@ -0,0 +1,53 @@
+extends Node
+
+@export var ui_stack: Array[Control] = []
+signal screen_pushed(screen: Control)
+signal screen_popped(screen: Control)
+
+
+func push_screen(screen: Control) -> void:
+	if not screen:
+		push_error("Cannot push a null screen.")
+		return
+
+	ui_stack.append(screen)
+	screen.show()
+	screen.set_process_input(true)
+	screen.set_focus_mode(Control.FOCUS_ALL)
+	screen.grab_focus()
+	screen_pushed.emit(screen)
+
+
+func pop_screen() -> void:
+	if ui_stack.is_empty():
+		return
+
+	var top: Control = ui_stack.pop_back()
+	top.hide()
+	top.set_process_input(false)
+	screen_popped.emit(top)
+
+	if not ui_stack.is_empty():
+		ui_stack.back().grab_focus()
+
+
+func top_screen() -> Control:
+	return ui_stack.back() if not ui_stack.is_empty() else null
+
+
+func is_screen_on_top(screen: Control) -> bool:
+	return not ui_stack.is_empty() and ui_stack.back() == screen
+
+
+func is_visible_on_stack(screen: Control) -> bool:
+	return ui_stack.has(screen) and screen.visible
+
+
+func close_all() -> void:
+	while not ui_stack.is_empty():
+		pop_screen()
+
+
+func hide_and_disable(screen: Control) -> void:
+	screen.hide()
+	screen.set_process_input(false)

autoloads/ui_manager.gd.uid

@@ -0,0 +1 @@
+uid://vmhlsc3fu3bn

objects/ui_manager.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://dyjumgjkqrufa"]
+
+[ext_resource type="Script" uid="uid://vmhlsc3fu3bn" path="res://autoloads/ui_manager.gd" id="1_53w4j"]
+
+[node name="UiManager" type="Node"]
+script = ExtResource("1_53w4j")

project.godot

@@ -34,6 +34,7 @@ SteamControllerInput="*res://autoloads/steam_controller_input.gd"
 Console="*res://addons/console/console.gd"
 AchievementsManager="*res://objects/achievements.tscn"
 ConfigFileHandler="*res://autoloads/config_file_handler.gd"
+UiManager="*res://autoloads/ui_manager.gd"
 
 [debug]
 

scripts/ui/pause_menu.gd

@@ -11,7 +11,6 @@ extends Node
 
 @onready var gm: GM = $"/root/GameManager"
 
-var is_paused: bool       = false
 var is_console_open: bool = false
 
 
@@ -46,23 +45,19 @@ func _ready() -> void:
 	Console.console_closed.connect(_on_console_close)
 
 
-func _input(event: InputEvent) -> void:
+
+func _unhandled_input(event: InputEvent) -> void:
 	if event.is_action_pressed("pause") and not is_console_open:
-		if is_paused:
+		if UiManager.is_visible_on_stack(pause_menu_control):
 			_on_resume_button_pressed()
 		else:
+			UiManager.push_screen(pause_menu_control)
 			gm.pause_game()
-			is_paused = true
-			pause_menu_control.show()
-			resume_button.grab_focus()
 
 
 func _on_resume_button_pressed() -> void:
-	pause_menu_control.hide()
-	if settings_menu:
-		settings_menu.hide()
+	UiManager.pop_screen()
 	gm.resume_game()
-	is_paused = false
 
 
 func _on_quit_button_pressed() -> void:
@@ -74,9 +69,8 @@ func _on_settings_button_pressed() -> void:
 		printerr("PauseMenu: Settings menu scene not set.")
 		return
 
-	settings_menu.show()
+	UiManager.push_screen(settings_menu)
 	gm.pause_game()
-	is_paused = true
 
 
 func _on_exit_to_menu_button_pressed() -> void:

scripts/ui/settings_menu.gd

@@ -26,7 +26,6 @@ func _ready() -> void:
 		audio_settings.hide()
 
 	if display_settings:
-
 		display_settings_button.pressed.connect(_on_display_settings_button_pressed)
 		display_settings.hide()
 
@@ -35,61 +34,38 @@ func _ready() -> void:
 		gameplay_settings.hide()
 
 
-func _input(event: InputEvent) -> void:
+
+func _unhandled_input(event: InputEvent) -> void:
 	if event.is_action_pressed("ui_cancel"):
-		if settings_menu_control.is_visible():
-			settings_menu_control.hide()
+		if UiManager.is_screen_on_top(settings_menu_control):
+			UiManager.pop_screen()
 
 
 func _on_input_settings_button_pressed() -> void:
 	if not input_settings:
 		return
 
-	if input_settings.is_visible():
-		input_settings.hide()
-	else:
-		input_settings.show()
-		audio_settings.hide()
-		display_settings.hide()
-		gameplay_settings.hide()
+	UiManager.push_screen(input_settings)
 
 
 func _on_audio_settings_button_pressed() -> void:
 	if not audio_settings:
 		return
 
-	if audio_settings.is_visible():
-		audio_settings.hide()
-	else:
-		audio_settings.show()
-		input_settings.hide()
-		display_settings.hide()
-		gameplay_settings.hide()
+	UiManager.push_screen(audio_settings)
 
 
 func _on_display_settings_button_pressed() -> void:
 	if not display_settings:
 		return
 
-	if display_settings.is_visible():
-		display_settings.hide()
-	else:
-		display_settings.show()
-		input_settings.hide()
-		audio_settings.hide()
-		gameplay_settings.hide()
+	UiManager.push_screen(display_settings)
 
 
 func _on_gameplay_settings_button_pressed() -> void:
 	if not gameplay_settings:
 		return
 
-	if gameplay_settings.is_visible():
-		gameplay_settings.hide()
-	else:
-		gameplay_settings.show()
-		input_settings.hide()
-		audio_settings.hide()
-		display_settings.hide()
+	UiManager.push_screen(gameplay_settings)