Add some UI

ui/pause/PauseMenu.gd

@@ -1,29 +1,38 @@
 class_name PauseMenu extends Control
 
 @export var MAIN:PauseMain
-@export var SETTINGS:PauseSettings
+@export var settingsPanel:PauseSettings
 
 func _ready() -> void:
   close()
+  MAIN.resumeRequested.connect(close)
+  MAIN.settingsRequested.connect(_openSettings)
+  MAIN.quitRequested.connect(func(): get_tree().quit())
 
 func isOpen() -> bool:
   return visible
 
 func open() -> void:
   visible = true
+  get_tree().paused = true
   MAIN.open()
 
 func close() -> void:
+  get_tree().paused = false
   visible = false
   MAIN.close()
-  SETTINGS.close()
+  settingsPanel.close()
+
+func _openSettings() -> void:
+  MAIN.close()
+  settingsPanel.open()
 
 func _unhandled_input(event:InputEvent) -> void:
   if !visible:
     return
   if event.is_action_pressed("ui_cancel"):
-    if SETTINGS.isOpen():
-      SETTINGS.close()
+    if settingsPanel.isOpen():
+      settingsPanel.close()
       MAIN.open()
     else:
       close()