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unity-doc-lua

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# xlua官网
https://github.com/Tencent/xLua/tree/master/build

# lua-protobuf
https://github.com/starwing/lua-protobuf

pb集成到xlua库

参考xlua增加删除第三方lua库.doc

  • 下载lua-protobuf
  • 文件复制
    • pb.h复制到xLua-master\build\lua-pb\include
    • pb.c复制到xLua-master\build\lua-pb\source
    • protoc.lua复制到项目的lua代码目录
    • luaunit.lua复制到项目的lua代码目录
    • serpent.lua复制到项目的lua代码目录
  • 修改xLua-master\build\CMakeLists.txt

在 MARK_AS_ADVANCED(XLUA_PROJECT_DIR) -大概34行后面添加

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#begin lua-pb
set (PB_SRC lua-pb/source/pb.c)
set_property(
	SOURCE ${PB_SRC}
	APPEND
	PROPERTY COMPILE_DEFINITIONS
	LUA_LIB
)
list(APPEND THIRDPART_INC  lua-pb/include)
set (THIRDPART_SRC ${THIRDPART_SRC} ${PB_SRC})
#end lua-pb

编译

win64

  • 进入 xLua-master\build 目录
  • 找到 make_win64_luajit.bat
    • 修改 call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat"为自己的路径
    • 要是没有这个bat，可以使用vs安装包里面找到vc并安装。
  • 执行 xLua-master\build\make_win64_luajit.bat
  • 拷贝 xLua-master\build\build_lj64\Release\xlua.dll 到项目或替换之前的库

项目代码处理

  • 新建一个自己项目的LuaDLL
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
using XLua;

namespace LuaDLL
{
    public delegate int lua_CSFunction(IntPtr L);

    public partial class Lua
    {
        const string LUADLL = "xlua";

        [DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
        public static extern int luaopen_rapidjson(System.IntPtr L);

        [MonoPInvokeCallback(typeof(LuaDLL.lua_CSFunction))]
        public static int LoadRapidJson(System.IntPtr L)
        {
            return luaopen_rapidjson(L);
        }

        [DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
        public static extern int luaopen_pb(System.IntPtr L);

        [MonoPInvokeCallback(typeof(LuaDLL.lua_CSFunction))]
        public static int LoadPb(System.IntPtr L)
        {    
            return luaopen_pb(L);  
        }

        [DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
        public static extern int luaopen_pb_io(System.IntPtr L);

        [MonoPInvokeCallback(typeof(LuaDLL.lua_CSFunction))]
        public static int LoadPb_io(System.IntPtr L)
        {
            return luaopen_pb_io(L);
        }

        [DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
        public static extern int luaopen_pb_conv(System.IntPtr L);

        [MonoPInvokeCallback(typeof(LuaDLL.lua_CSFunction))]
        public static int LoadPb_conv(System.IntPtr L)
        {
            return luaopen_pb_conv(L);
        }

        [DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
        public static extern int luaopen_pb_buffer(System.IntPtr L);

        [MonoPInvokeCallback(typeof(LuaDLL.lua_CSFunction))]
        public static int LoadPb_buffer(System.IntPtr L)
        {
            return luaopen_pb_buffer(L);
        }

        [DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
        public static extern int luaopen_pb_slice(System.IntPtr L);

        [MonoPInvokeCallback(typeof(LuaDLL.lua_CSFunction))]
        public static int LoadPb_slice(System.IntPtr L)
        {
            return luaopen_pb_slice(L);
        }
    }
}
  • 接口注册

找到项目的luaEnv实例管理的地方，添加大致代码

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/// <summary>
/// 初始化
/// </summary>
private void Init()
{
    m_luaEnv = new LuaEnv();
    m_luaEnv.AddLoader(CustomLoader);
    m_luaEnv.AddBuildin("rapidjson", LuaDLL.Lua.LoadRapidJson);
    m_luaEnv.AddBuildin("pb", LuaDLL.Lua.LoadPb);
    m_luaEnv.AddBuildin("pb.io", LuaDLL.Lua.LoadPb_io);
    m_luaEnv.AddBuildin("pb.buffer", LuaDLL.Lua.LoadPb_buffer);
    m_luaEnv.AddBuildin("pb.conv", LuaDLL.Lua.LoadPb_conv);
    m_luaEnv.AddBuildin("pb.slice", LuaDLL.Lua.LoadPb_slice);
}

测试

  • lua测试
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local pb = require "pb"
local protoc = require "protoc"

-- load schema from text
assert(protoc:load [[
    syntax = "proto3";

    message Phone {
        string name = 1;
        int64 phonenumber = 2;
    }
    message Person {
        string name = 1;
        int32 age = 2;
        string address = 3;
        repeated Phone contacts = 4;
    } ]])

-- lua table data# H! L* l( W0 l1 Z
local data = {
    name = "ilse",
    age = 18,
    contacts = {
        { name = "alice", phonenumber = 12312341234 },
        { name = "bob", phonenumber = 45645674567 }
    }
}

print("==============")

local bytes = assert(pb.encode("Person", data))
print(pb.tohex(bytes))

local data2 = assert(pb.decode("Person", bytes))
print(require "serpent".block(data2))

print("==============")