ItemTagHandler.cs

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using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using ReLogic.Graphics;
using Terraria.ID;
using Terraria.UI;
using Terraria.UI.Chat;
 
namespace Terraria.GameContent.UI.Chat;
 
public class ItemTagHandler : ITagHandler
{
    private class ItemSnippet : TextSnippet
    {
        private Item _item;
 
        public ItemSnippet(Item item)
        {
            _item = item;
            Color = ItemRarity.GetColor(item.rare);
        }
 
        public override void OnHover()
        {
            Main.HoverItem = _item.Clone();
            Main.instance.MouseText(_item.Name, _item.rare, 0);
        }
 
        public override bool UniqueDraw(bool justCheckingString, out Vector2 size, SpriteBatch spriteBatch, Vector2 position = default(Vector2), Color color = default(Color), float scale = 1f)
        {
            float num = 1f;
            float num2 = 1f;
            if (Main.netMode != 2 && !Main.dedServ)
            {
                Main.instance.LoadItem(_item.type);
                Texture2D value = TextureAssets.Item[_item.type].Value;
                if (Main.itemAnimations[_item.type] != null)
                {
                    Main.itemAnimations[_item.type].GetFrame(value);
                }
                else
                {
                    value.Frame();
                }
            }
            num2 *= scale;
            num *= num2;
            if (num > 0.75f)
            {
                num = 0.75f;
            }
            if (!justCheckingString && color != Color.Black)
            {
                float inventoryScale = Main.inventoryScale;
                Main.inventoryScale = scale * num;
                ItemSlot.Draw(spriteBatch, ref _item, 14, position - new Vector2(10f) * scale * num, Color.White);
                Main.inventoryScale = inventoryScale;
            }
            size = new Vector2(32f) * scale * num;
            return true;
        }
 
        public override float GetStringLength(DynamicSpriteFont font)
        {
            return 32f * Scale * 0.65f;
        }
    }
 
    TextSnippet ITagHandler.Parse(string text, Color baseColor, string options)
    {
        Item item = new Item();
        if (int.TryParse(text, out var result))
        {
            item.netDefaults(result);
        }
        if (item.type <= 0)
        {
            return new TextSnippet(text);
        }
        item.stack = 1;
        if (options != null)
        {
            string[] array = options.Split(',');
            for (int i = 0; i < array.Length; i++)
            {
                if (array[i].Length == 0)
                {
                    continue;
                }
                switch (array[i][0])
                {
                case 's':
                case 'x':
                {
                    if (int.TryParse(array[i].Substring(1), out var result3))
                    {
                        item.stack = Utils.Clamp(result3, 1, item.maxStack);
                    }
                    break;
                }
                case 'p':
                {
                    if (int.TryParse(array[i].Substring(1), out var result2))
                    {
                        item.Prefix((byte)Utils.Clamp(result2, 0, PrefixID.Count));
                    }
                    break;
                }
                }
            }
        }
        string text2 = "";
        if (item.stack > 1)
        {
            text2 = " (" + item.stack + ")";
        }
        return new ItemSnippet(item)
        {
            Text = "[" + item.AffixName() + text2 + "]",
            CheckForHover = true,
            DeleteWhole = true
        };
    }
 
    public static string GenerateTag(Item I)
    {
        string text = "[i";
        if (I.prefix != 0)
        {
            text = text + "/p" + I.prefix;
        }
        if (I.stack != 1)
        {
            text = text + "/s" + I.stack;
        }
        return text + ":" + I.netID + "]";
    }
}