update: 更新到godot4.4.1，并大量重构代码

Scripts/Mods/LuaModManager.cs

@@ -0,0 +1,40 @@
+using System;
+using System.IO;
+using System.Linq;
+using Godot;
+using NLua;
+
+class LuaMod : IDisposable {
+    private readonly Lua lua = new();
+
+    public LuaMod(string path, string? package_path = null) {
+        lua.LoadCLRPackage();
+        lua.State.Encoding = System.Text.Encoding.UTF8;
+        lua["package.path"] = package_path ?? Path.GetDirectoryName(path) + "/?.lua;";
+        lua.RegisterFunction("print", new Action<object[]>(GD.Print).Method);
+        // Action bar = () => { GD.Print("bar"); };
+        // lua.RegisterFunction("bar", bar.Target, bar.Method);
+        lua.DoFile(path);
+    }
+
+    public void BindFunc(ModManager mod) {
+        foreach (var api in mod.GetAPIs()) {
+            lua.RegisterFunction(api.Key, api.Value.Target, api.Value.Method);
+        }
+        foreach (var hook in mod.GetHooks()) {
+            if (lua[hook.Key] is LuaFunction func) {
+                mod.AddHook(hook.Key, (args) => {
+                    var rets = func.Call(args).FirstOrDefault();
+                    if (rets is bool b) return b;
+                    return false;
+                });
+            }
+        }
+    }
+
+    public void Dispose() {
+        lua?.Dispose();
+        GC.SuppressFinalize(this);
+    }
+}
+