feat: Rank item editor prefixes by value and color them by rarity

src/TerraSharp/UI/ItemEditor.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using Microsoft.Xna.Framework;
 using Terraria;
+using Terraria.GameContent.UI;
 using Terraria.ID;
 #if TMODLOADER
 using Terraria.ModLoader;
@@ -19,6 +20,8 @@ public sealed class ItemEditor() : Window("itemEditor", "Item Editor", new Vecto
     readonly Scroll _scroll = new();
     readonly Item _reference = new();
     (int Type, int Prefix) _referenceKey = (-1, -1);
+    (int Prefix, int Value, int Rarity)[] _prefixOptions = [];
+    int _prefixType = -1;
     int _x, _y, _width;
     bool _firstGroup;
 
@@ -141,21 +144,43 @@ public sealed class ItemEditor() : Window("itemEditor", "Item Editor", new Vecto
         return Lang.prefix[prefix].Value;
     }
 
+    // Ranked by the value each prefix gives, like reforge tiers.
+    (int Prefix, int Value, int Rarity)[] PrefixOptions(Item item)
+    {
+        if (_prefixType == item.type)
+            return _prefixOptions;
+
+        var sample = new Item();
+        _prefixOptions = [.. Prefixes(item).Prepend(0).Select(prefix =>
+        {
+            sample.SetDefaults(item.type);
+            if (prefix > 0)
+                sample.Prefix(prefix);
+            return (prefix, sample.value, sample.rare);
+        }).OrderBy(option => option.prefix != 0).ThenByDescending(option => option.value).ThenBy(option => PrefixName(option.prefix), StringComparer.OrdinalIgnoreCase)];
+        _prefixType = item.type;
+        return _prefixOptions;
+    }
+
     void DrawPrefixes(Item item)
     {
-        int[] prefixes = [.. Prefixes(item).OrderBy(PrefixName, StringComparer.OrdinalIgnoreCase)];
-        if (prefixes.Length == 0)
+        (int Prefix, int Value, int Rarity)[] options = PrefixOptions(item);
+        if (options.Length <= 1)
             return;
 
         Group("Prefix");
         const int Columns = 3, Gap = 6;
+        const float Scale = 0.76f;
         int width = (_width - Gap * (Columns - 1)) / Columns;
-        int[] options = [0, .. prefixes];
         for (int i = 0; i < options.Length; i++)
         {
             var bounds = new Rectangle(_x + i % Columns * (width + Gap), _y + i / Columns * 34, width, 30);
-            if (Widgets.Button(bounds, options[i] == 0 ? "None" : PrefixName(options[i]), item.prefix == options[i], 0.76f) && item.prefix != options[i])
-                ApplyPrefix(item, options[i]);
+            int prefix = options[i].Prefix;
+            if (Widgets.Button(bounds, "", item.prefix == prefix, Scale) && item.prefix != prefix)
+                ApplyPrefix(item, prefix);
+
+            string name = Render.Ellipsize(prefix == 0 ? "None" : PrefixName(prefix), Scale, bounds.Width - 12);
+            Render.TextCentered(Widgets.SpriteBatch, name, bounds, ItemRarity.GetColor(options[i].Rarity), Scale);
         }
         _y += (options.Length + Columns - 1) / Columns * 34 + 4;
     }