cocos2dx3.x将c++绑定到lua MAC

首先进入准备工作
1.安装软件

打开终端，逐条执行下面的命令

sudo easy_install pip     

sudo pip install PyYAML   

sudo pip install Cheetah

*****************************

pip是一个安装和管理Python包的工具

PyYAML是一个Python的YAML解析器，这是一种数据序列化语言，是一种可读的文本的数据结构，它的设计目标是使人们容易读，程序容易处理。它类似XML，但是比XML简单。

Cheetah提供了一门简单语言，用来定义提供基本流控制和对象访问构造的模板。

2.增加NDK_ROOT，必须是android-ndk-r9b及以上

二:编写自己的c++代码

#ifndef _HELLO_H_

#define _HELLO_H_

#include "cocos2d.h"

namespace cocos2d {

class Hello : public cocos2d::Ref{

public:

    Hello(){};

    ~Hello(){};

    bool init(){return true;};

    static cocos2d::Hello* create()

    {

           Hello *h = new Hello();

           if(h && h->init()){

            h->autorelease();

            return h;

           }

           return NULL;

    };

    void myprint(){log("Hello Hello");};

  };

}

#endif

三:编写cocos2dx_hello.ini

1.在项目的frameworks/cocos2d-x/tools/tolua/下创建一个文件cocos2dx_hello.ini。
2.将以下内容：

[cocos2dx_custom]

# the prefix to be added to the generated functions. You might or might
not use this in your own

# templates

prefix = cocos2dx_custom

# create a target namespace (in javascript, this would create some code
like the equiv. to `ns = ns

# all classes will be embedded in that namespace

target_namespace = cc

android_headers =  -I%(androidndkdir)s/platforms/android-14/arch-arm/usr/include -I%(androidndkdir)s/sources/cxx-stl/gnu-libstdc++/4.7/libs/armeabi-v7a/include -I%(androidndkdir)s/sources/cxx-stl/gnu-libstdc++/4.7/include -I%(androidndkdir)s/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi-v7a/include -I%(androidndkdir)s/sources/cxx-stl/gnu-libstdc++/4.8/include

android_flags = -D_SIZE_T_DEFINED_

clang_headers = -I%(clangllvmdir)s/lib/clang/3.3/include

clang_flags = -nostdinc -x c++ -std=c++11 -U __SSE__

cocos_headers = -I%(cocosdir)s/cocos -I%(cocosdir)s/my -I%(cocosdir)s/cocos/2d -I%(cocosdir)s/cocos/base -I%(cocosdir)s/cocos/ui -I%(cocosdir)s/cocos/physics -I%(cocosdir)s/cocos/2d/platform -I%(cocosdir)s/cocos/2d/platform/android -I%(cocosdir)s/cocos/math/kazmath -I%(cocosdir)s/extensions -I%(cocosdir)s/external -I%(cocosdir)s/cocos/editor-support -I%(cocosdir)s

cocos_flags = -DANDROID -DCOCOS2D_JAVASCRIPT

cxxgenerator_headers =

# extra arguments for clang

extra_arguments =  %(android_headers)s %(clang_headers)s %(cxxgenerator_headers)s %(cocos_headers)s %(android_flags)s %(clang_flags)s %(cocos_flags)s %(extra_flags)s

# what headers to parse

headers = %(cocosdir)s/cocos/my/CustomClass.h

# what classes to produce code for. You can use regular expressions here.
# When testing the regular expression, it will be enclosed in "^$", like
# this: "^Menu*$".

classes = CustomClass.*

# what should we skip? in the format ClassName::[function function]
# ClassName is a regular expression, but will be used like this:
# "^ClassName$" functions are also regular expressions, they will not be
# surrounded by "^$". If you want to skip a whole class, just add a single
# "*" as functions. See bellow for several examples. A special class name
# is "*", which will apply to all class names. This is a convenience
# wildcard to be able to skip similar named functions from all classes.

skip =

rename_functions =

rename_classes =

# for all class names, should we remove something when registering in the
# target VM?

remove_prefix =

# classes for which there will be no "parent" lookup

classes_have_no_parents =

# base classes which will be skipped when their sub-classes found them.

base_classes_to_skip =

# classes that create no constructor

# Set is special and we will use a hand-written constructor

abstract_classes =

# Determining whether to use script object(js object) to control the
# lifecycle of native(cpp) object or the other way around. Supported
# values are 'yes' or 'no'.

script_control_cpp = no

拷贝到cocos2dx_hello.ini中。

3.修改cocos2dx_hello.ini文件。

   A.第1行的名字 [cocos2dx_hello]

   B.第4行注释掉 #not use this in your own

   C.第8行的前缀 prefix = cocos2dx_hello

   D.第15行的命名空间 target_namespace = cc

   E.第37行的头文件  headers = %(cocosdir)s/cocos/my/Hello.h

   F.第43行的类名    classes = Hello.*

4.修改genbindings.py文件

   修改136行的 cmd_args在最后加上

   'cocos2dx_hello.ini' : ('cocos2dx_hello', 'lua_cocos2dx_hello_auto'), \

5.打开终端，进入到frameworks/cocos2d-x/tools/tolua/目录，输入export PYTHON_BIN=/usr/bin/python

6.执行genbindings.py

  在项目的framework/cocos2d-x/cocos/scripting/lua-bindings/auto/目录中会有lua_cocos2dx_hello_auto.cpp和lua_cocos2dx_hello_auto.hpp文件。

  四:在lua中使用

  1.使用Xcode6.1打开项目

2.lua_cocos2dx_hello_auto.cpp导入到项目

3.build settings的User Header Search paths debug中增加$(SRCROOT)/../../cocos2d-x/cocos/my

4.在lua_module_register.h中导入#include “lua_cocos2dx_hello_auto.hpp"头文件

5.lua_module_register.h中int lua_module_register(lua_State* L)方法中增加
lua_getglobal(L,"_G");

    if(lua_istable(L,-1))

    {

        register_all_cocos2dx_hello(L);

    }

    lua_pop(L,1);

6.在MainScene.lua中编写local h = cc.Hello:create();

    h:myprint();

7.运行项目，可以看到“Hello Hello”