inventory/Runtime/UI/ItemSlotUi.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;
using Sirenix.OdinInspector;
using KairoEngine.SFX;
using KairoEngine.Core;

namespace KairoEngine.Inventory
{
    public class ItemSlotUi : MonoBehaviour
    {
        public ItemRef itemRef;
        public Image iconUi;
        public TextMeshProUGUI quantityUi;
        public TextMeshProUGUI priceUi;
        public TextMeshProUGUI valueUI;
        public RectTransform curtainTransform;
        public bool draggable = true;
        public bool dropable = true;
        public bool forSaleItem = false;

        [ShowIf("@forSaleItem")] public Sprite buttonNormal;
        [ShowIf("@forSaleItem")] public Sprite buttonInteraction;
        [ShowIf("@forSaleItem")] public Sprite buttonNavigation;
        [ShowIf("@forSaleItem")] public Sprite buttonSelected;
        [ShowIf("@forSaleItem")] public Sprite buttonDisabled;

        [ShowIf("@forSaleItem")] public Sprite buttonSuccess;
        [ShowIf("@forSaleItem")] public Sprite buttonSuccessInteraction;
        [ShowIf("@forSaleItem")] public Sprite buttonSuccessNavigation;
        [ShowIf("@forSaleItem")] public Sprite buttonSuccessSelected;

        [ReadOnly] public ItemContainer parentItemContainer;
        [ReadOnly] public ItemContainerUi parentItemContainerUi;

        [ReadOnly] public int quantityToBuy = 0;

        private BarterControllerUi baterCtrl;

        

        public void Setup(ItemRef newItemRef, ItemContainer parentItemContainer, ItemContainerUi itemContainerUi, bool showQuantity = true, bool showPrice = false, string value = "")
        {
            this.parentItemContainerUi = itemContainerUi;
            this.parentItemContainer = parentItemContainer;
            itemRef = newItemRef;
            if(forSaleItem) ResetButtonUi();
            if (itemRef != null)
            {
                iconUi.sprite = itemRef.item.icon;
                iconUi.enabled = true;
                CooldownCurtain();
                if (itemRef.item.stackble && showQuantity)
                {
                    quantityUi.gameObject.SetActive(true);
                    quantityUi.enabled = true;
                    quantityUi.text = itemRef.quantity.ToString();
                }
                if(showPrice)
                {
                    priceUi.gameObject.SetActive(true);
                    priceUi.enabled = true;
                    priceUi.text = "$" + itemRef.item.value.ToString();
                }
                if(forSaleItem) 
                {
                    quantityToBuy = 0;
                    SetupBuy();
                }
                else gameObject.GetComponent<Button>().interactable = true;
            } else
            {
                iconUi.sprite = null;
                iconUi.enabled = false;
                quantityUi.gameObject.SetActive(false);
                quantityUi.enabled = false;
                priceUi.gameObject.SetActive(false);
                priceUi.enabled = false;
                curtainTransform.sizeDelta = new Vector2 (75, 0);
            }
            if(value != "")
            {
                valueUI.gameObject.SetActive(true);
                valueUI.enabled = true;
                valueUI.text = value;
            }
            else
            {
                valueUI.gameObject.SetActive(false);
                valueUI.enabled = false;
            }
            baterCtrl = BarterControllerUi.instance;
        }

        void Update()
        {
            CooldownCurtain();
        }

        private void CooldownCurtain()
        {
            if(itemRef != null)
            {
                if(itemRef.item == null) return;
                if(itemRef.item.category == ItemType.instantEffect)
                {
                    ItemBaseInstantEffect item = (ItemBaseInstantEffect)itemRef.item;
                    if(item.hasCooldown)
                    {
                        if(itemRef.lastUsed < item.cooldownTime)
                        {
                            float height = (75/item.cooldownTime) * (item.cooldownTime - itemRef.lastUsed);
                            curtainTransform.sizeDelta = new Vector2 (75, height);
                            return;
                        }
                    }
                }
            }
            curtainTransform.sizeDelta = new Vector2 (75, 0);
        }

        private void SetupBuy()
        {
            ItemContainer playerInventory = EventManager.request.GetItemContainer("PlayerItemContainer").value;
            if(playerInventory == null) Debug.LogError("Missing playerInventory");
            bool hasMoney = playerInventory.HasItem("Old Dollars", itemRef.item.value);
            Button button = gameObject.GetComponent<Button>();
            if(hasMoney == false)
            {
                if(button != null) button.interactable = false;
            }
            else
            {
                if(button != null) button.interactable = true;
            }
        }

        public void AddToCart()
        {
            if(itemRef == null) return;
            bool x10 = false;
            if(Input.GetKey(KeyCode.LeftControl)) x10 = true;
            ItemContainer playerInventory = EventManager.request.GetItemContainer("PlayerItemContainer").value;
            if(playerInventory == null) Debug.LogError("Missing playerInventory");
            int total = 0;
            foreach (var itemSlot in parentItemContainerUi.itemSlots)
            {
                if(itemSlot.itemRef != null)
                {
                    total += itemSlot.itemRef.item.value * itemSlot.quantityToBuy;
                }
            }
            var x = x10 && itemRef.quantity >= quantityToBuy + 10 ? 10 : itemRef.quantity - quantityToBuy;
            total += x10 ? itemRef.item.value * x : itemRef.item.value;
            bool hasMoney = playerInventory.HasItem("Old Dollars", total);
            if(hasMoney == false) 
            {
                SoundController.EmmitSound(baterCtrl.sfxNegative, this.transform.position);
                return;
            }
            if(itemRef.quantity > quantityToBuy) 
            {
                SoundController.EmmitSound(baterCtrl.sfxAddItem, this.transform.position);
                quantityToBuy += x10 ? x : 1;
                
            }
            if(quantityToBuy > 1)
            {
                valueUI.gameObject.SetActive(true);
                valueUI.enabled = true;
                valueUI.text = quantityToBuy.ToString() + "x";
            }
            quantityUi.text = (itemRef.quantity - quantityToBuy).ToString();
            Image image = gameObject.GetComponent<Image>();
            if(image != null)
            {
                image.sprite = buttonSuccess;
            }
            Button button = gameObject.GetComponent<Button>();
            if(button != null)
            {
                SpriteState state = new SpriteState();
                state.highlightedSprite = buttonSuccessSelected;
                state.pressedSprite = buttonSuccessInteraction;
                state.selectedSprite = buttonSuccessNavigation;
                button.spriteState = state;
            }
        }

        public void RemoveFromCart()
        {
            if(itemRef == null) return;
            bool x10 = false;
            if(Input.GetKey(KeyCode.LeftControl)) x10 = true;
            SoundController.EmmitSound(baterCtrl.sfxRemoveItem, this.transform.position);
            if(x10 && quantityToBuy > 10) quantityToBuy -= 10;
            else if(x10 && quantityToBuy <= 10) quantityToBuy = 0;
            else if(!x10 && quantityToBuy > 0) quantityToBuy -= 1;
            if(quantityToBuy < 2)
            {
                valueUI.gameObject.SetActive(false);
                valueUI.enabled = false;
            }
            valueUI.text = quantityToBuy.ToString() + "x";
            quantityUi.text = (itemRef.quantity - quantityToBuy).ToString();
            if(quantityToBuy == 0) ResetButtonUi();
        }

        private void ResetButtonUi()
        {
            Image image = gameObject.GetComponent<Image>();
            if(image != null)
            {
                image.sprite = buttonNormal;
            }
            Button button = gameObject.GetComponent<Button>();
            if(button != null)
            {
                SpriteState state = new SpriteState();
                state.highlightedSprite = buttonSelected;
                state.pressedSprite = buttonInteraction;
                state.selectedSprite = buttonNavigation;
                state.disabledSprite = buttonDisabled;
                button.spriteState = state;
            }
        }
    }
}