BITFALL/Assets/Artists/Scripts/Entities/Inventory/PlayerCustomItemBehaviour.cs

using System;
using System.Collections;
using System.Collections.Generic;
using BITFALL.Entities;
using BITFALL.Entities.Inventory;
using BITFALL.Player.Inventory;
using BITKit;
using BITKit.Entities;
using BITKit.UX;
using UnityEngine;

namespace BITFALL.Items
{
    [CustomType(typeof(ICustomItemBehavior))]
    public abstract class CustomItemBehavior : ICustomItemBehavior, IProperty
    {
        [Inject]
        protected IEntity _entity;
        public bool IsAdditive;
        [Inject] protected IEntityInventory _inventory;

        public virtual bool TryUse(IBasicItem item) => true;

        public virtual void OnUse(IBasicItem item)
        {
        }
    }

    [Serializable]
    public sealed class PlayerHealItem : CustomItemBehavior
    {
        [SerializeField] private int healValue;
        [SerializeField] private bool autoUse;
        
        [Inject] private IHealth _health;

        [Inject(true)] private IKnockdown _knockdown;
        
        [Inject(true)] private IUXPopup _popup;
        
        public override bool TryUse(IBasicItem item)
        {
            if(_health.IsAlive is false) return false;
            if (_health.HealthPoint >= _health.MaxHealthPoint)
            {
                _popup?.Popup("<color=yellow>生命值已满</color>");
                return false;
            }
            if (_knockdown is { IsKnockdown: true })
            {
                _popup?.Popup("<color=yellow>你被击倒了</color>");
                return false;
            }
            if (autoUse)
            {
                _inventory.UseItem(item);
                return true;
            }
            return false;
        }

        public override void OnUse(IBasicItem item)
        {
            base.OnUse(item);
            _health.HealthPoint+=healValue;
        }
    }
}