InventoryItem - Part 11

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

public class InventoryItem : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerDownHandler, IPointerUpHandler
{
    // --- Is this item trashable --- //
    public bool isTrashable;

    // --- Item Info UI --- //
    public GameObject itemInfoUI;

    private Text itemInfoUI_itemName;
    private Text itemInfoUI_itemDescription;
    private Text itemInfoUI_itemFunctionality;

    public string thisName, thisDescription, thisFunctionality;

    // --- Consumption --- //
    private GameObject itemPendingConsumption;
    public bool isConsumable;

    public float healthEffect;
    public float caloriesEffect;
    public float hydrationEffect;


    private void Start()
    {
        itemInfoUI = InventorySystem.Instance.ItemInfoUI;
        itemInfoUI_itemName = itemInfoUI.transform.Find("itemName").GetComponent<Text>();
        itemInfoUI_itemDescription = itemInfoUI.transform.Find("itemDescription").GetComponent<Text>();
        itemInfoUI_itemFunctionality = itemInfoUI.transform.Find("itemFunctionality").GetComponent<Text>();
    }

    // Triggered when the mouse enters into the area of the item that has this script.
    public void OnPointerEnter(PointerEventData eventData)
    {
        itemInfoUI.SetActive(true);
        itemInfoUI_itemName.text = thisName;
        itemInfoUI_itemDescription.text = thisDescription;
        itemInfoUI_itemFunctionality.text = thisFunctionality;
    }

    // Triggered when the mouse exits the area of the item that has this script.
    public void OnPointerExit(PointerEventData eventData)
    {
        itemInfoUI.SetActive(false);
    }

    // Triggered when the mouse is clicked over the item that has this script.
    public void OnPointerDown(PointerEventData eventData)
    {
        //Right Mouse Button Click on
        if (eventData.button == PointerEventData.InputButton.Right)
        {
            if (isConsumable)
            {
                // Setting this specific gameobject to be the item we want to destroy later
                itemPendingConsumption = gameObject;
                ConsumingFunction(healthEffect, caloriesEffect, hydrationEffect);

            }
                     }
         }

         public void OnPointerUp(PointerEventData eventData)
         {
            if (eventData.button == PointerEventData.InputButton.Right)
            {
                if (isConsumable && itemPendingConsumption == gameObject)
                {
                    DestroyImmediate(gameObject);
                    InventorySystem.Instance.ReCalculateList();
                    CraftingSystem.Instance.RefreshNeededItems();
                }
            }
         }

         private void ConsumingFunction(float healthEffect, float caloriesEffect, float hydrationEffect)
         {
              itemInfoUI.SetActive(false);

              healthEffectCalculation(healthEffect);

              caloriesEffectCalculation(caloriesEffect);

              hydrationEffectCalculation(hydrationEffect);

         }


         private static void healthEffectCalculation(float healthEffect)
         {
              //Health\\

              float healthBeforeConsumption = PlayerState.Instance.currentHealth;
              float maxHealth = PlayerState.Instance.maxHealth;

              if (healthEffect != 0)
              {
                    if ((healthBeforeConsumption + healthEffect) > maxHealth)
                    {
                        PlayerState.Instance.setHealth(maxHealth);
                    }
                    else
                    {
                        PlayerState.Instance.setHealth(healthBeforeConsumption + healthEffect);
                    }
              }
         }


         private static void caloriesEffectCalculation(float caloriesEffect)
         {
              //Calories\\

              float caloriesBeforeConsumption = PlayerState.Instance.currentCalories;
              float maxCalories = PlayerState.Instance.maxCalories;

              if (caloriesEffect != 0)
              {
                    if ((caloriesBeforeConsumption + caloriesEffect) > maxCalories)
                    {
                        PlayerState.Instance.setCalories(maxCalories);
                    }
                    else
                    {
                        PlayerState.Instance.setCalories(caloriesBeforeConsumption + caloriesEffect);
                    }
              }
         }


         private static void hydrationEffectCalculation(float hydrationEffect)
         {
              //Hydration\\

              float hydrationBeforeConsumption = PlayerState.Instance.currentHydrationPercent;
              float maxHydration = PlayerState.Instance.maxHydrationPercent;

              if (hydrationEffect != 0)
              {
                    if ((hydrationBeforeConsumption + hydrationEffect) > maxHydration)
                    {
                        PlayerState.Instance.setHydration(maxHydration);
                    }
                    else
                    {
                        PlayerState.Instance.setHydration(hydrationBeforeConsumption + hydrationEffect);
                    }
              }
         }


}