Some tweaks

game/game.gd

@@ -2,12 +2,9 @@ extends Node
 
 signal show_main_menu
 
-
 var _pause_menu: PauseMenu
 var _current_passage: Passage
 
-var _show_pause_menu: bool = false
-
 
 func _ready() -> void:
     _current_passage = load("res://game/passage.tscn").instantiate()
@@ -15,33 +12,30 @@ func _ready() -> void:
     
     
 func _input(event: InputEvent) -> void:
-    if event.is_action_pressed("pause") and not _current_passage.is_paused():
+    if event.is_action_pressed("pause") and not get_tree().paused:
         _pause_game()
 
 
-func _process(_delta: float) -> void:
-    if _show_pause_menu:
-        _pause_menu = load("res://menu/pause_menu.tscn").instantiate()
-        add_child(_pause_menu)
-        _pause_menu.continue_game.connect(_unpause_game)
-        _pause_menu.show_main_menu.connect(_show_main_menu)
-        _show_pause_menu = false
+func _create_pause_menu() -> void:
+    _pause_menu = load("res://menu/pause_menu.tscn").instantiate()
+    add_child(_pause_menu)
+    _pause_menu.continue_game.connect(_unpause_game)
+    _pause_menu.show_main_menu.connect(_show_main_menu)
 
 
 func _pause_game() -> void:
-    _current_passage.set_paused(true)
+    get_tree().paused = true
     _current_passage.visible = false
-        
-    _show_pause_menu = true
-    
+    _create_pause_menu.call_deferred()
     
 
 func _unpause_game() -> void:
-    _current_passage.set_paused(false)
+    get_tree().paused = false
     _current_passage.visible = true
     
     _pause_menu.queue_free()
     
 
 func _show_main_menu() -> void:
+    get_tree().paused = false
     show_main_menu.emit()

game/passage.gd

@@ -1,13 +1,3 @@
 class_name Passage
 
 extends Node2D
-
-var _paused : bool = false
-
-
-func set_paused(paused: bool) -> void:
-    _paused = paused
-
-
-func is_paused() -> bool:
-    return _paused

managers/settings_manager.gd

@@ -9,8 +9,24 @@ const SETTING_WINDOW_FACTOR = "window_factor"
 
 var _config: ConfigFile
 
+
 var _fullscreen := false
+var fullscreen : bool:
+    get:
+        return _fullscreen
+    set(value):
+        _fullscreen = value
+        _apply_video_settings()
+        _save_settings()
+        
 var _window_factor := 0
+var window_factor : int:
+    get:
+        return _window_factor
+    set(value):
+        _window_factor = value
+        _apply_video_settings()
+        _save_settings()
 
 
 func _ready() -> void:
@@ -86,23 +102,3 @@ func _ensure_window_on_screen() -> void:
     
     if new_x != window_position.x or new_y != window_position.y:
         DisplayServer.window_set_position(Vector2i(new_x, new_y))
-
-
-func set_fullscreen(value: bool) -> void:
-    _fullscreen = value
-    _apply_video_settings()
-    _save_settings()
-
-
-func fullscreen() -> bool:
-    return _fullscreen
-    
-
-func set_window_factor(value: int) -> void:
-    _window_factor = value
-    _apply_window_scale()
-    _save_settings()
-    
-    
-func window_factor() -> int:
-    return _window_factor

menu/options.gd

@@ -20,23 +20,23 @@ func _setup_neighbors() -> void:
 
 
 func _load_current_settings() -> void:
-    $%FullscreenCheckButton.button_pressed = SettingsManager.fullscreen()
-    $%WindowFactorOptionButton.selected = SettingsManager.window_factor()
+    $%FullscreenCheckButton.button_pressed = SettingsManager.fullscreen
+    $%WindowFactorOptionButton.selected = SettingsManager.window_factor
     _update_window_factor_disabled()
 
 
 func _update_window_factor_disabled() -> void:
-    $%WindowFactorOptionButton.disabled = SettingsManager.fullscreen()
+    $%WindowFactorOptionButton.disabled = SettingsManager.fullscreen
 
 
 func _on_fullscreen_check_button_toggled(toggled: bool) -> void:
-    SettingsManager.set_fullscreen(toggled)
+    SettingsManager.fullscreen = toggled
     _update_window_factor_disabled()
 
 
 func _on_window_factor_option_button_item_selected(index: int) -> void:
-    if !SettingsManager.fullscreen():
-        SettingsManager.set_window_factor(index)
+    if not SettingsManager.fullscreen:
+        SettingsManager.window_factor = index
 
 
 func _on_credits_button_pressed() -> void:

menu/pause_menu.tscn

@@ -12,6 +12,7 @@ action = &"pause"
 events = [SubResource("InputEventAction_inj1j"), SubResource("InputEventAction_vy7sn")]
 
 [node name="PauseMenu" type="Control"]
+process_mode = 2
 layout_mode = 3
 anchors_preset = 0
 script = ExtResource("1_inj1j")