feat: 项目初始化 + 3D方块世界原型 + AI助搭系统

初始化 monorepo: Go后端(7微服务) + Unity客户端(9模块) + 启动器 HTML5原型: Three.js 3D体素世界, Perlin噪声地形, 原版材质, 22种方块 Minecraft创造模式背包: 双栏布局, 拖拽移动物品, 方向性元件引脚 AI助搭策划文档 + 客户端/服务端骨架 + Docker Compose + CI
2026-08-08 14:07:56 +08:00
parent 9500c4c80a
commit f70b061d1a
1972 changed files with 159760 additions and 6 deletions
@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace PCL.Core.Utils.Diff
+{
+    public class ItemDiff
+    {
+        public static ItemDiffResult<T> ComputeDiff<T, TKey>(
+            IEnumerable<T> oldItems,
+            IEnumerable<T> newItems,
+            Func<T, TKey> keySelector,
+            IEqualityComparer<TKey>? keyComparer = null)
+            where TKey : notnull
+        {
+            ArgumentNullException.ThrowIfNull(oldItems);
+            ArgumentNullException.ThrowIfNull(newItems);
+            ArgumentNullException.ThrowIfNull(keySelector);
+
+            var comparer = keyComparer ?? EqualityComparer<TKey>.Default;
+
+            var oldDict = oldItems.ToDictionary(keySelector, comparer);
+            var newDict = newItems.ToDictionary(keySelector, comparer);
+
+            var oldKeys = new HashSet<TKey>(oldDict.Keys, comparer);
+            var newKeys = new HashSet<TKey>(newDict.Keys, comparer);
+
+            var addedKeys = new HashSet<TKey>(newKeys.Except(oldKeys, comparer), comparer);
+            var removedKeys = new HashSet<TKey>(oldKeys.Except(newKeys, comparer), comparer);
+            var commonKeys = new HashSet<TKey>(oldKeys.Intersect(newKeys, comparer), comparer);
+
+            var added = addedKeys.Select(k => newDict[k]).ToList();
+            var removed = removedKeys.Select(k => oldDict[k]).ToList();
+            var unchanged = commonKeys.Select(k => newDict[k]).ToList();
+
+            return new ItemDiffResult<T>(added, removed, unchanged);
+        }
+    }
+}