【学习笔记】从零开始学ToLua（三）样例续

TheLudGamer · 发表于 2023-4-10 10:16

（下面的代码块中是c#的代码，引用块中的是lua中的代码）

如何创建自定义的loader

return new LuaResLoader()

public LuaResLoader()
{
instance = this;
beZip = false;
}

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out

protocol buffers

数据结构化

数据序列化

int64

l, h = uint64.tonum2(x)

继承

tolua.setpeer

关于peer表

peer

t.__index = t --__index元方法(index元方法是本身，会在自身进行查找)

--重写同名函数
         function t:Translate(...)
            print('child Translate')
            _base:Translate(...)
         end

Bundle

public IEnumerator LoadBundles()
{
string streamingPath = Application.streamingAssetsPath.Replace('\\', '/');
#if UNITY_5 || UNITY_2017 || UNITY_2018
#if UNITY_ANDROID && !UNITY_EDITOR
string main = streamingPath + "/" + LuaConst.osDir + "/" + LuaConst.osDir;
#else
string main = "file:///" + streamingPath + "/" + LuaConst.osDir + "/" + LuaConst.osDir;
#endif
WWW www = new WWW(main);
yield return www;
AssetBundleManifest manifest = (AssetBundleManifest)www.assetBundle.LoadAsset("AssetBundleManifest");
List<string> list = new List<string>(manifest.GetAllAssetBundles());
#else
//此处应该配表获取
List<string> list = new List<string>() { "lua.unity3d", "lua_cjson.unity3d", "lua_system.unity3d", "lua_unityengine.unity3d", "lua_protobuf.unity3d", "lua_misc.unity3d", "lua_socket.unity3d", "lua_system_reflection.unity3d" };
#endif
bundleCount = list.Count;
for (int i = 0; i < list.Count; i++)
{
string str = list[i];
#if UNITY_ANDROID && !UNITY_EDITOR
string path = streamingPath + "/" + LuaConst.osDir + "/" + str;
#else
string path = "file:///" + streamingPath + "/" + LuaConst.osDir + "/" + str;
#endif
string name = Path.GetFileNameWithoutExtension(str);
StartCoroutine(CoLoadBundle(name, path));
}
yield return StartCoroutine(LoadFinished());
}

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cjson

protected overlay void OpenLibs（）
{
base.OpenLibs（） ;
OpenCJson（）;
}

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protected void OpenCJson（）
{
luaState.LuaGetField（LuaIndexes.LUA_REGISTRYINDEX，“ _LOADED”）;
luaState.OpenLibs（LuaDLL.luaopen_cjson）;
luaState.LuaSetField（-2，“ cjson”）;
luaState.OpenLibs（LuaDLL.luaopen_cjson_safe）;
luaState.LuaSetField（-2，“ cjson.safe”）;
}

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TextAsset text =（TextAsset）Resources.Load（“ jsonexample”，typeof（TextAsset））;

本地数据= json.decode（str）

s = json.encode（data）

UTF8

local s = '遍历字符串'
      for i in utf8.byte_indices(s) do
         local next = utf8.next(s, i)
         print(s:sub(i, next and next -1))
      end
local len = utf8.len(s)
      for i = 2, len + 1 do
         print(utf8.sub(s, 1, i)..'...')
      end

local s1 = '天下风云出我辈'
print('风云 count is: '..utf8.count(s1, '风云'))

s1 = s1:gsub('风云', '風雲')
      local function replace(s, i, j, repl_char)
         if s:sub(i, j) == '辈' then
               return repl_char
         end
      end
      print(utf8.replace(s1, replace, '輩'))

string

function Test()
      local str = System.String.New('男儿当自强')
      local index = str:IndexOfAny('儿自')
      print('and index is: '..index)
      local buffer = str:ToCharArray()
      print('str type is: '..type(str)..' buffer[0] is ' .. buffer[0])
      local luastr = tolua.tolstring(buffer)
      print('lua string is: '..luastr..' type is: '..type(luastr))
      luastr = tolua.tolstring(str)
      print('lua string is: '..luastr)
end

反射

tolua#提供的替换方法是 preloading, 把你未来可能需要的类型添加到导出列表customTypeList，同时也添加到dynamicList列表中

通过 require "namespace.classname" 这样的方式把其动态注册到lua中，对于非枚举类型tolua#系统可以在第一次push该类型时动态载入，也可在登录场景加载或者某个你需要的函数中require这个类型

function Test()
      local t = typeof('TestExport')
      local func = tolua.getmethod(t, 'TestReflection')
      func:Call()
      func:Destroy()
      func = nil
      local objs = {Vector3.one, Vector3.zero}
      local array = tolua.toarray(objs, typeof(Vector3))
      local obj = tolua.createinstance(t, array)
      --local constructor = tolua.getconstructor(t, typeof(Vector3):MakeArrayType())
      --local obj = constructor:Call(array)
      --constructor:Destroy()
      func = tolua.getmethod(t, 'Test', typeof('System.Int32'):MakeByRefType())
      local r, o = func:Call(obj, 123)
      print(r..':'..o)
      func:Destroy()
      local property = tolua.getproperty(t, 'Number')
      local num = property:Get(obj, null)
      print('object Number: '..num)
      property:Set(obj, 456, null)
      num = property:Get(obj, null)
      property:Destroy()
      print('object Number: '..num)
      local field = tolua.getfield(t, 'field')
      num = field:Get(obj)
      print('object field: '.. num)
      field:Set(obj, 2048)
      num = field:Get(obj)
      field:Destroy()
      print('object field: '.. num)
      field = tolua.getfield(t, 'OnClick')
      local onClick = field:Get(obj)
      onClick = onClick + DoClick
      field:Set(obj, onClick)
      local click = field:Get(obj)
      click:DynamicInvoke()
      field:Destroy()
      click:Destroy()
end

List

struct

StackTraits<Rect>.Init(PushRect, CheckRectValue, ToRectValue); //支持压入lua以及从lua栈读取
TypeTraits<Rect>.Init(CheckRectType); //支持重载函数TypeCheck.CheckTypes
TypeTraits<Nullable<Rect>>.Init(CheckNullRectType); //支持重载函数TypeCheck.CheckTypes
LuaValueTypeName.names[LuaValueType.Rect] = "Rect"; //CheckType失败提示的名字
TypeChecker.LuaValueTypeMap[LuaValueType.Rect] = typeof(Rect); //用于支持类型匹配检查操作
ToLua.ToVarMap[LuaValueType.Rect] = ToRectTable; //Rect作为object读取
ToLua.VarPushMap[typeof(Rect)] = (L, o) => { PushRect(L, (Rect)o); }; //Rect作为object压入

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