Add controller ui

battle/ui/action/ActionBox.gd

@@ -15,24 +15,33 @@ enum Action {
 signal action(action:Action)
 
 func _ready() -> void:
-  btnAttack.pressed.connect(func():
-    action.emit(Action.ATTACK)
-  )
-  btnMagic.pressed.connect(func():
-    action.emit(Action.MAGIC)
-  )
-  btnItem.pressed.connect(func():
-    action.emit(Action.ITEM)
-  )
-  btnBack.pressed.connect(func():
-    action.emit(Action.BACK)
-  )
+  btnAttack.pressed.connect(func(): action.emit(Action.ATTACK))
+  btnMagic.pressed.connect(func(): action.emit(Action.MAGIC))
+  btnItem.pressed.connect(func(): action.emit(Action.ITEM))
+  btnBack.pressed.connect(func(): action.emit(Action.BACK))
   self.visible = false
 
+func _unhandled_input(event:InputEvent) -> void:
+  if !visible:
+    return
+  if event.is_action_pressed("ui_cancel"):
+    action.emit(Action.BACK)
+    get_viewport().set_input_as_handled()
+
 func getAction(fighter:BattleFighter) -> Action:
   btnAttack.disabled = fighter.movePrimary == null || !fighter.movePrimary.canFighterUse(fighter)
   btnMagic.disabled = fighter.movesMagical.size() == 0
-  btnItem.disabled = false # TODO: check if items available?
+  btnItem.disabled = false
+
+  # Focus the first available button so the controller can navigate immediately.
+  if !btnAttack.disabled:
+    btnAttack.grab_focus()
+  elif !btnMagic.disabled:
+    btnMagic.grab_focus()
+  elif !btnItem.disabled:
+    btnItem.grab_focus()
+  else:
+    btnBack.grab_focus()
 
   var act = await action
   return act