COCOS2DX exporting C + + classes for LUA use

Source: Internet
Author: User
Tags lua

Official Tutorial Portal Http://www.cocos2d-x.org/docs/manual/framework/native/wiki/how-to-use-bindings-generator/zh


    1. .. Edit INI file

    2. Modifying the contents of the Py script

    3. Run the PY tool

    4. You can use it.

There is currently no LUA transfer function for C + + class execution


INI file [network_srv]# the prefix to be added to the generated  functions. you might or might not use this in your own#  templatesprefix = network_srv# create a target namespace  (in  javascript, this would create some code like the equiv. to  ' ns = ns | |  {} ') # all classes will be embedded in that namespacetarget_ namespace =  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/includeandroid_ 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/cocos/platform/android -i% (cocosdir) s/cocos/editor-support -i% ( Cocosdir) s/external -i% (cocosdir) s/cocos/scripting/lua-bindings/manual -i% (cocosdir) s/external/lua/ lua -i% (Cocosdir) s/external/luacocos_flags = -dandroidcxxgenerator_headers = #  extra arguments for clangextra_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 parseheaders = c:/users/hk/ Documents/cocos/cocosprojects/luatest/frameworks/runtime-src/classes/network_srv.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 =  network_srv netmgr# 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 " lookupclasses_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 constructorabstract_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




genbindings.py file #!/usr/bin/python# this script is used to generate  Luabinding glue codes.# android ndk version must be ndk-r9b.import  sysimport os, os.pathimport shutilimport configparserimport subprocessimport  refrom contextlib import contextmanagerdef _check_ndk_root_env ():      '  Checking the environment NDK_ROOT, which will be used  for building     '     try:         ndk_root = os.environ[' Ndk_root ']    except exception:         print  "Ndk_root not defined. please define  ndk_root in your environment. "         sys.exit (1)     return&nbSp Ndk_rootdef _check_python_bin_env ():     " checking the environment  PYTHON_BIN, which will be used for building     "     try:        python_bin = os.environ[ ' Python_bin ']    except exception:         print  "Python_bin not defined, use current python."         PYTHON_BIN = sys.executable     Return python_binclass cmderror (Exception):     pass@contextmanagerdef _ PUSHD (Newdir):     PREVIOUSDIR = OS.GETCWD ()     os.chdir ( Newdir)     yield    os.chdir (previousdir) def _run_cmd (command):     ret = subprocess.call (Command, shell=true)     if ret != 0:         message =  "Error running command"          raise cmderror (Message) def main ():    cur_platform=  '?? '     llvm_path =  '?? '     ndk_root = _check_ndk_root_env ()     # del the   " in the path    ndk_root = re.sub (r" \ "",  "",  NDK _root)     python_bin = _check_python_bin_env ()     platform  = sys.platform    if platform ==  ' Win32 ':         cur_platform =  ' windows '     elif platform  ==  ' Darwin ':        cur_platform = platform    elif  ' Linux '  in platform:         cur_platform =  ' Linux '     else:         print  ' your platform is not supported! '         sys.exit (1)     if platform ==   ' Win32 ':         x86_llvm_path = os.path.abspath ( Os.path.join (ndk_root,  ' toolchains/llvm-3.3/prebuilt ',  '%s '  % cur_platform))      else:        x86_llvm_path = os.path.abspath ( Os.path.join (ndk_root,  ' toolchains/llvm-3.3/prebuilt ',  '%s-%s '  %  (cur_platform,  ' x86 ') ))     x64_llvm_path = os.path.abspath (Os.path.join (ndk_root,  ' toolchains/ Llvm-3.3/prebuilt ',  '%s-%s '  %  (cur_platform,&nbSP; ' X86_64 '))     if os.path.isdir (X86_llvm_path):         llvm_path = x86_llvm_path    elif os.path.isdir (X64_llvm_path):         llvm_path = x64_llvm_path     else:        print  ' llvm toolchain not found! '         print  ' Path: %s or path: %s are  not valid!  '  %  (x86_llvm_path, x64_llvm_path)          sys.exit (1)     project_root = os.path.abspath (Os.path.join ( Os.path.dirname (__file__),  ' ... ',  '))     cocos_root = os.path.abspath (Os.path.join (project_root,  "))      cxx_generator_root = os.path.abspath (Os.path.join (project_root,  ' Tools/bindings-generator '))     # save config to file     config = configparser.configparser ()     config.set (' DEFAULT ',   ' Androidndkdir ',  ndk_root)     config.set (' DEFAULT ',  ' Clangllvmdir ',  Llvm_path)     config.set (' DEFAULT ',  ' Cocosdir ',  cocos_root)      config.set (' DEFAULT ',  ' Cxxgeneratordir ',  cxx_generator_root)     config.set (' DEFAULT ',  ' extra_flags ',  ')     # To fix parse error  on windows, we must difine __wchar_max__ and undefine __mingw32__  .    if platform ==  ' Win32 ':         config.set (' DEFAULT ',  ' extra_flags ',  '-d__wchar_max__=0x7fffffff -u__mingw32__ ')     conf_ini_file = os.path.abspath (Os.path.join (Os.path.dirname (__file__),  ' Userconf.ini ')      print  ' Generating userconf.ini '     with open (Conf_ini_file,   ' W ')  as configfile:      config.write (configfile)      # set proper environment variables    if  ' Linux '  in platform or platform ==  ' Darwin ':         os.putenv (' Ld_library_path ',  '%s/libclang '  % cxx_generator_root)      if platform ==  ' Win32 ':        path_env =  os.environ[' path ']        os.putenv (' path ',  r '%s;%s\libclang;%s\ Tools\win32; '  %  (path_env, cxx_generator_root, cxx_generator_root)     try:         tolua_root =  '%s/tools/tolua '  % project_root         output_dir =  ' c:/users/hk/documents/cocos/cocosprojects/luatest/ Frameworks/runtime-src/classes '           cmd_args =  {' Network_srv.ini '  :  (' network_srv ',  ' Lua_network_srv_auto ')                       }         target =  ' Lua '          generator_py =  '%s/generator.py '  % cxx_generator_root         for key in cmd_args.keys ():             args = cmd_args[key]             cfg =  '%s/%s '  %  (tolua_root, key)              print  ' generating bindings for %s '  %  (key[:-4])              command =  '%s %s %s -s %s - t %s -o %s -n %s '  %  (Python_bin, generator_py, cfg, args[0],  TARGET, OUTPUT_DIR, ARGS[1])              _run_cmd (command)         if platform ==  ' Win32 ':             with _pushd (Output_dir):                 _run_cmd (' Dos2unix  * ')         print  '---------------------------------'          print  ' Generating lua bindings succeeds. '         print  '---------------------------------'      except exception as e:        if e.__ class__.__name__ ==  ' Cmderror ':             print  '---------------------------------'              print  ' Generating lua bindings fails. '             print  '-------------------------- -------'             os.system ("pause")          else:             raise# -------------- main --------------if __name__ ==  ' __main__ ':     main ()




Test code



network_srv.h  file #ifndef network_srv___  #define  network_srv___#include  "Cocos2d.h" # include  "Network/httprequest.h" #include   "network/httpclient.h" #include   "network/httpresponse.h" using namespace  cocos2d;using namespace cocos2d::network;using namespace  std;class network_srv :p Ublic cocos2d::ref{public:create_func (network_srv); Bool init () {  return true; }network_srv () {This->retain ();} Void run ();}; #define   URL_BASE  "http://127.0.0.1:8080/cocos/"//#define   URL_BASE  "HTTP/ qq771911064.oicp.net:8080/cocos/"#define  DATA_MAX_LENGTH 100class NetMgr{public:static  Netmgr*getinstance ();/** *  @brief  new a HttpRequest *  @param  action   such as  "Login?name=1&&pass=1"  * @ */void newrequest (const  char* action);/** *  @brief  IF&NBsp;isdone  please call this to get data *  @return  data  From srv * @ */const char *getdata ();/** *  @brief  check  network is done or not *  @return  0 is ' t completed * @ Retuen 1 completed */int isdone ();p rivate:netmgr (); Int __isdone;/*0 is ' s  done,1 done*/char _data[data_max_length];}; #endif  //


CPP code #include  "Network_srv.h" Void network_srv::run () {netmgr::getinstance ()->newrequest ("Login? Name=1&&pass=1 ");} Void netmgr::newrequest (const char* action) {__isdone = 0;string url =  url_base;url += action; Httprequest*request = new httprequest;request->seturl (Url.c_str ());request-> Setrequesttype (Httprequest::type::get); Request->setresponsecallback ([=] (httpclient*client,  Httpresponse *respone) {if  (Respone->getresponsecode ()  != 200) return;vector<char>*  buffer = respone->getresponsedata (); Cc_assert (Data_max_length > buffer->size (),  " NetMgr buffer size  Overfloaw ");for  (Int i = 0; i < buffer->size ();  i++) {_data[i]  =  (*buffer) [i];} _data[buffer->size ()] =  ' + '; __isdone = 1;}); Httpclient::getinstance ()->settimeoutforconnect (10);Httpclient::getinstance ()->send (request); Request->release ();} Netmgr*  netmgr::getinstance () {static netmgr* _netmgr__ = 0;if  (_netmgr__  == 0) {_netmgr__ = new netmgr;} return _netmgr__;} Const char * netmgr::getdata () {__isdone = 0;return _data;} Int  netmgr::isdone () {return __isdone;} Netmgr::netmgr () {__isdone = 0;}



Lua code local function menucallbackclose () if Netmgr:getinstance (): IsDone () ==1 then Release_print ("recv  Data ". Netmgr:getinstance (): GetData ()) End end--add handler for close item local Menutoolsitem = Rootnode:getchi    Ldbyname ("button_1") Menutoolsitem:addtoucheventlistener (menucallbackclose) SRV = Network_srv:create (); Srv:run ();


COCOS2DX exporting C + + classes for LUA use

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