OldBlueWater/BlueWater/Assets/02.Scripts/Item/ItemController.cs

using System.Collections;
using Sirenix.OdinInspector;
using UnityEngine;

// ReSharper disable once CheckNamespace
namespace BlueWaterProject
{
    public class ItemController : MonoBehaviour
    {
        [Title("아이템")]
        [SerializeField] private Item item;
        [SerializeField] private GameObject itemUiPrefab;
        
        [Title("자동 파괴")]
        [SerializeField] private bool useAutoDestroy = true;
        [ShowIf("@useAutoDestroy")]
        [SerializeField] private float autoDestroyTime = 30f;

        [Title("획득")]
        [SerializeField] private bool drawGizmos = true;
        [SerializeField] private float radius = 5f;
        [SerializeField] private float acquisitionTime = 1f;
        [SerializeField] private LayerMask targetLayer;

        private Collider[] hitColliders = new Collider[1];
        private Collider targetCollider;
        private WaitForSeconds lootCoroutineTime = new(0.5f);
        private AudioSource audioSource;
        private Transform itemsLoot;
        private ItemUiController itemLootUi;

        private void OnDrawGizmosSelected()
        {
            if (!drawGizmos) return;
            
            Gizmos.DrawWireSphere(transform.position, radius);
        }

        public void Init(Item newItem)
        {
            item = newItem;

            if (!itemsLoot)
            {
                itemsLoot = UiManager.Inst.OceanUi.MainCanvas.transform.Find("ItemsLoot");
            }

            var myPos = transform.position;
            var screenPos = CameraManager.Inst.MainCam.WorldToScreenPoint(myPos);
            itemLootUi = Instantiate(itemUiPrefab, screenPos, Quaternion.identity, itemsLoot).GetComponent<ItemUiController>();
            itemLootUi.Init(transform);
        }

        private void Awake()
        {
            audioSource = transform.parent.Find("Audio").GetComponent<AudioSource>();
            itemsLoot = UiManager.Inst.OceanUi.MainCanvas.transform.Find("ItemsLoot");
        }
        
        private void Start()
        {
            if (useAutoDestroy)
            {
                Destroy(transform.parent.gameObject, autoDestroyTime);
                Destroy(itemLootUi.gameObject, autoDestroyTime);
            }

            StartCoroutine(LootCoroutine());
        }

        private IEnumerator LootCoroutine()
        {
            while (true)
            {
                var maxSize = Physics.OverlapSphereNonAlloc(transform.position, radius, hitColliders, targetLayer);
                if (maxSize > 0)
                {
                    targetCollider = hitColliders[0];
                    itemLootUi.ItemAcquisition();
                    break;
                }
                
                yield return lootCoroutineTime;
            }
            
            var startPosition = transform.position;
            var elapsedTime = 0f;
            
            while (elapsedTime < acquisitionTime)
            {
                elapsedTime += Time.deltaTime;
                var t = elapsedTime / acquisitionTime;
                t = Mathf.SmoothStep(0f, 1f, t);

                transform.position = Vector3.Lerp(startPosition, targetCollider.transform.position, t);
                yield return null;
            }

            item.Acquire();
            itemLootUi.gameObject.SetActive(false);
            UiManager.Inst.OceanUi.DropItemGroupController.ShowDropItemInfoUi(item);
            
            if (audioSource && audioSource.resource)
            {
                audioSource.Play();
            }

            yield return new WaitForSeconds(audioSource.clip.length);
            
            Destroy(transform.parent.gameObject);
            Destroy(itemLootUi.gameObject);
        }
    }
}