jelito/Assets/jelycho/Code/Player/HUD/PlayerHUD.cs

using RebootKit.Engine.Extensions;
using UnityEngine;
using UnityEngine.UIElements;
using Logger = RebootKit.Engine.Foundation.Logger;

namespace RebootReality.jelycho.Player.HUD {
    public class PlayerHUD : MonoBehaviour {
        static readonly Logger s_Logger = new Logger(nameof(PlayerHUD));

        [SerializeField] UIDocument m_MainDocument;

        [field: SerializeField] public ObjectsLabelsVC ObjectsLabels { get; private set; }
        [field: SerializeField] public PlayerInventoryUI InventoryUI { get; private set; }

        PlayerActor m_PlayerActor;

        void OnEnable() {
        }

        void OnDisable() {
            InventoryUI.CleanUp();
        }
        
        public void SetPlayerActor(PlayerActor actor) {
            UnsetPlayerActor();
            
            if (actor.OrNull() == null) {
                return;
            }

            m_PlayerActor = actor;
            InventoryUI.Configure(m_MainDocument.rootVisualElement.Q("player-hud__inventory-slots"), actor.Inventory);
            
            actor.OnSelectedInventorySlotChanged += OnInventorySelectedSlotChanged;
            InventoryUI.SetSelectedSlot(actor.SelectedInventorySlot);
        }
        
        void UnsetPlayerActor() {
            if (m_PlayerActor.OrNull() == null) {
                return;
            }
            
            m_PlayerActor.OnSelectedInventorySlotChanged -= OnInventorySelectedSlotChanged;

            m_PlayerActor = null;
            InventoryUI.CleanUp();
        }
        
        void OnInventorySelectedSlotChanged(int newIndex) {
            InventoryUI.SetSelectedSlot(newIndex);
        }
    }
}