station_obscurum_unity/Assets/Scripts/Item/SpecialItemCycler.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

[System.Serializable]
public class ItemImageRef
{
    public string name;
    public GameObject item;
    public Sprite icon;
}

public class SpecialItemCycler : MonoBehaviour
{
    [SerializeField]
    private List<ItemImageRef> spawnableItems =new List<ItemImageRef>();
    [SerializeField]
    private List<ItemImageRef> shootableItems = new List<ItemImageRef>();

    [SerializeField]
    private PlayerInteractionHandler interactionHandler;
    [SerializeField]
    private PistolComponent pistol;
    private int spawnableIndex = 0;
    private int shootableIndex = 0;
    [SerializeField]
    //private Inventory invent;
    private TempInventory invent;
    [SerializeField]
    private Image selectedImage;
    [SerializeField]
    private TMP_Text selectedQuantityText;
    private Color sqtInitColor;

    // Start is called before the first frame update
    void Start()
    {
        sqtInitColor = selectedQuantityText.color;   
    }

    // Update is called once per frame
    void Update()
    {
        if (interactionHandler.GunEnabled)
        {
            pistol.projectilePrefab = shootableItems[shootableIndex % shootableItems.Count].item;
            pistol.projectileName = shootableItems[shootableIndex % shootableItems.Count].name;
        }
        SetImage();
        if (Input.GetButtonDown("CycleItems"))
        {
            if (interactionHandler.GunEnabled)
            {
                this.shootableIndex = (shootableIndex + 1) % shootableItems.Count;
                selectedImage.sprite = shootableItems[this.shootableIndex].icon;
            }
            else
            {
                this.spawnableIndex = (spawnableIndex+1)%spawnableItems.Count;
                selectedImage.sprite = spawnableItems[this.spawnableIndex].icon;
                
            }
            if (selectedImage.sprite == null)
            {
                selectedImage.color = new Color(selectedImage.color.r, selectedImage.color.g, selectedImage.color.b, 0);
            }
            else
            {
                selectedImage.color = new Color(selectedImage.color.r, selectedImage.color.g, selectedImage.color.b, 1);
            }
        }
        if (Input.GetButtonDown("TempPlace"))
        {
            if (invent.GetQuantityOf(spawnableItems[spawnableIndex].name)>0)
                if (!interactionHandler.GunEnabled && spawnableItems[spawnableIndex].item!= null)
                {
                    GameObject prefab = spawnableItems[spawnableIndex].item;
                    GameObject instance = Instantiate(prefab,interactionHandler.CarryingPos);
                    instance.transform.localPosition = Vector3.zero;
                    instance.transform.parent = null;
                    invent.Remove(spawnableItems[spawnableIndex].name);
                
                }
        }


    }

    void SetImage()
    {
       
        if (interactionHandler.GunEnabled)
        {
            
            selectedImage.sprite = shootableItems[this.shootableIndex].icon;
            selectedQuantityText.text = invent.GetQuantityOf(shootableItems[this.shootableIndex].name).ToString();
        }
        else
        {
          
            selectedImage.sprite = spawnableItems[this.spawnableIndex].icon;
            selectedQuantityText.text = invent.GetQuantityOf(spawnableItems[this.spawnableIndex].name).ToString();

        }
        if (selectedImage.sprite == null)
        {
            selectedImage.color = new Color(selectedImage.color.r, selectedImage.color.g, selectedImage.color.b, 0);
            selectedQuantityText.gameObject.SetActive(false);
           
        }
        else
        {
            selectedImage.color = new Color(selectedImage.color.r, selectedImage.color.g, selectedImage.color.b, 1);
            selectedQuantityText.gameObject.SetActive(true);
            if (selectedQuantityText.text == "0")
            {
                selectedQuantityText.color = Color.red;
            }
            else
            {
                selectedQuantityText.color = sqtInitColor;
            }
        }
    }
}