CustomCurrencyManager.cs

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using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria.ID;
 
namespace Terraria.GameContent.UI;
 
public class CustomCurrencyManager
{
    private static int _nextCurrencyIndex;
 
    private static Dictionary<int, CustomCurrencySystem> _currencies = new Dictionary<int, CustomCurrencySystem>();
 
    public static void Initialize()
    {
        _nextCurrencyIndex = 0;
        CustomCurrencyID.DefenderMedals = RegisterCurrency(new CustomCurrencySingleCoin(3817, 999L));
    }
 
    public static int RegisterCurrency(CustomCurrencySystem collection)
    {
        int nextCurrencyIndex = _nextCurrencyIndex;
        _nextCurrencyIndex++;
        _currencies[nextCurrencyIndex] = collection;
        return nextCurrencyIndex;
    }
 
    public static void DrawSavings(SpriteBatch sb, int currencyIndex, float shopx, float shopy, bool horizontal = false)
    {
        CustomCurrencySystem customCurrencySystem = _currencies[currencyIndex];
        Player player = Main.player[Main.myPlayer];
        bool overFlowing;
        long num = customCurrencySystem.CountCurrency(out overFlowing, player.bank.item);
        long num2 = customCurrencySystem.CountCurrency(out overFlowing, player.bank2.item);
        long num3 = customCurrencySystem.CountCurrency(out overFlowing, player.bank3.item);
        long num4 = customCurrencySystem.CountCurrency(out overFlowing, player.bank4.item);
        long num5 = customCurrencySystem.CombineStacks(out overFlowing, num, num2, num3, num4);
        if (num5 > 0)
        {
            Main.GetItemDrawFrame(4076, out var itemTexture, out var itemFrame);
            Main.GetItemDrawFrame(3813, out var itemTexture2, out var itemFrame2);
            Main.GetItemDrawFrame(346, out var itemTexture3, out var itemFrame3);
            Main.GetItemDrawFrame(87, out var itemTexture4, out var itemFrame4);
            if (num4 > 0)
            {
                sb.Draw(itemTexture, Utils.CenteredRectangle(new Vector2(shopx + 96f, shopy + 50f), itemFrame.Size() * 0.65f), null, Color.White);
            }
            if (num3 > 0)
            {
                sb.Draw(itemTexture2, Utils.CenteredRectangle(new Vector2(shopx + 80f, shopy + 50f), itemFrame2.Size() * 0.65f), null, Color.White);
            }
            if (num2 > 0)
            {
                sb.Draw(itemTexture3, Utils.CenteredRectangle(new Vector2(shopx + 80f, shopy + 50f), itemFrame3.Size() * 0.65f), null, Color.White);
            }
            if (num > 0)
            {
                sb.Draw(itemTexture4, Utils.CenteredRectangle(new Vector2(shopx + 70f, shopy + 60f), itemFrame4.Size() * 0.65f), null, Color.White);
            }
            Utils.DrawBorderStringFourWay(sb, FontAssets.MouseText.Value, Lang.inter[66].Value, shopx, shopy + 40f, Color.White * ((float)(int)Main.mouseTextColor / 255f), Color.Black, Vector2.Zero);
            customCurrencySystem.DrawSavingsMoney(sb, Lang.inter[66].Value, shopx, shopy, num5, horizontal);
        }
    }
 
    public static void GetPriceText(int currencyIndex, string[] lines, ref int currentLine, long price)
    {
        _currencies[currencyIndex].GetPriceText(lines, ref currentLine, price);
    }
 
    public static bool BuyItem(Player player, long price, int currencyIndex)
    {
        CustomCurrencySystem customCurrencySystem = _currencies[currencyIndex];
        bool overFlowing;
        long num = customCurrencySystem.CountCurrency(out overFlowing, player.inventory, 58, 57, 56, 55, 54);
        long num2 = customCurrencySystem.CountCurrency(out overFlowing, player.bank.item);
        long num3 = customCurrencySystem.CountCurrency(out overFlowing, player.bank2.item);
        long num4 = customCurrencySystem.CountCurrency(out overFlowing, player.bank3.item);
        long num5 = customCurrencySystem.CountCurrency(out overFlowing, player.bank4.item);
        if (customCurrencySystem.CombineStacks(out overFlowing, num, num2, num3, num4, num5) < price)
        {
            return false;
        }
        List<Item[]> list = new List<Item[]>();
        Dictionary<int, List<int>> dictionary = new Dictionary<int, List<int>>();
        List<Point> list2 = new List<Point>();
        List<Point> list3 = new List<Point>();
        List<Point> list4 = new List<Point>();
        List<Point> list5 = new List<Point>();
        List<Point> list6 = new List<Point>();
        List<Point> list7 = new List<Point>();
        list.Add(player.inventory);
        list.Add(player.bank.item);
        list.Add(player.bank2.item);
        list.Add(player.bank3.item);
        list.Add(player.bank4.item);
        for (int i = 0; i < list.Count; i++)
        {
            dictionary[i] = new List<int>();
        }
        dictionary[0] = new List<int> { 58, 57, 56, 55, 54 };
        for (int j = 0; j < list.Count; j++)
        {
            for (int k = 0; k < list[j].Length; k++)
            {
                if (!dictionary[j].Contains(k) && customCurrencySystem.Accepts(list[j][k]))
                {
                    list3.Add(new Point(j, k));
                }
            }
        }
        FindEmptySlots(list, dictionary, list2, 0);
        FindEmptySlots(list, dictionary, list4, 1);
        FindEmptySlots(list, dictionary, list5, 2);
        FindEmptySlots(list, dictionary, list6, 3);
        FindEmptySlots(list, dictionary, list7, 4);
        if (!customCurrencySystem.TryPurchasing(price, list, list3, list2, list4, list5, list6, list7))
        {
            return false;
        }
        return true;
    }
 
    private static void FindEmptySlots(List<Item[]> inventories, Dictionary<int, List<int>> slotsToIgnore, List<Point> emptySlots, int currentInventoryIndex)
    {
        for (int num = inventories[currentInventoryIndex].Length - 1; num >= 0; num--)
        {
            if (!slotsToIgnore[currentInventoryIndex].Contains(num) && (inventories[currentInventoryIndex][num].type == 0 || inventories[currentInventoryIndex][num].stack == 0))
            {
                emptySlots.Add(new Point(currentInventoryIndex, num));
            }
        }
    }
 
    public static bool IsCustomCurrency(Item item)
    {
        foreach (KeyValuePair<int, CustomCurrencySystem> currency in _currencies)
        {
            if (currency.Value.Accepts(item))
            {
                return true;
            }
        }
        return false;
    }
 
    public static void GetPrices(Item item, out long calcForSelling, out long calcForBuying)
    {
        _currencies[item.shopSpecialCurrency].GetItemExpectedPrice(item, out calcForSelling, out calcForBuying);
    }
}