㈠ cocos2dx lua 代碼中讀取二進制文件用什麼方法
如何在cocos2d c++代碼中調用lua以及探究，有需要的朋友可以參考下。 如何在cocos2d c++代碼中調用lua 在AppDelegate 中加入了 #include"Lua_extensions_CCB.h" #include"CCLuaEngine.h" #include"Lua_web_socket.h" 查到代碼載入lua腳步引擎
㈡ cocos2d-x 3.0怎樣把c++類導出lua文件
我寫了一個用3.0的工具導出類到lua，自動生成代碼的方法。
以前要導出c++類到lua，就得手動維護pkg文件，那簡直就是噩夢，3.0以後就會感覺生活很輕鬆了。
下面我就在說下具體做法。
1、安裝必要的庫和工具包，以及配置相關環境變數，請按照cocos2d-x-3.0rc0\tools\tolua\README.mdown說得去做，不做贅述。
2、寫c++類(我測試用的是cocos2d-x-3.0rc0\tests\lua-empty-test\project\Classes\HelloWorldScene.cpp)
3、寫一個生成的python腳本，你不會寫，沒關系，我們會照貓畫虎
1）進入目錄cocos2d-x-3.0rc0\tools\tolua，復制一份genbindings.py，命名為genbindings_myclass.py
2）把生成目錄制定到咱工程里去，打開genbindings_myclass.py把
?
1
output_dir = '%s/cocos/scripting/lua-bindings/auto' % project_root
改成
?
1
output_dir = '%s/tests/lua-empty-test/project/Classes/auto' % project_root
3）修改命令參數,把
cmd_args = {'cocos2dx.ini' : ('cocos2d-x', 'lua_cocos2dx_auto'), \
'cocos2dx_extension.ini' : ('cocos2dx_extension', 'lua_cocos2dx_extension_auto'), \
'cocos2dx_ui.ini' : ('cocos2dx_ui', 'lua_cocos2dx_ui_auto'), \
'cocos2dx_studio.ini' : ('cocos2dx_studio', 'lua_cocos2dx_studio_auto'), \
'cocos2dx_spine.ini' : ('cocos2dx_spine', 'lua_cocos2dx_spine_auto'), \
'cocos2dx_physics.ini' : ('cocos2dx_physics', 'lua_cocos2dx_physics_auto'), \
}
改成
cmd_args = {'myclass.ini' : ('myclass', 'lua_myclass_auto') }
4）這時你可能問myclass.ini在哪啊，我們下來就寫這個文件。原理一樣，我還是照貓畫虎，拿cocos2dx_spine.ini改的。
[myclass]
# the prefix to be added to the generated functions. You might or might not use this in your own
# templates
prefix = myclass
# 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 =
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
android_flags = -D_SIZE_T_DEFINED_
clang_headers = -I%(clangllvmdir)s/lib/clang/3.3/include
clang_flags = -nostdinc -x c++ -std=c++11
cocos_headers = -I%(cocosdir)s/cocos -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/tests/lua-empty-test/project/Classes/HelloWorldScene.h
# what classes to proce code for. You can use regular expressions here. When testing the regular
# expression, it will be enclosed in "^$", like this: "^Menu*$".
classes = HelloWorld
# 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 = Ref ProcessBase
# 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
改的時候要注意這些行
[myclass]
prefix = myclass
target_namespace =
headers = %(cocosdir)s/tests/lua-empty-test/project/Classes/HelloWorldScene.h
classes = HelloWorld
skip =
abstract_classes =
4、下面要自動生成代碼了，打開命令行工具，cd到cocos2d-x-3.0rc0\tools\tolua下，敲入
python genbindings_myclass.py
回車運行。如果前面沒問題的話你會在cocos2d-x-3.0rc0\tests\lua-empty-test\project\Classes多了一個文件夾auto，然後把裡面生成lua_myclass_auto.cpp和lua_myclass_auto.hpp加入拽如工程
5、把我們生成的個mole在腳本引擎初始化的時候加入lua。
編輯AppDelegate.cpp，包含lua_myclass_auto.hpp頭文件，在
LuaEngine* engine = LuaEngine::getInstance();
後面加入
register_all_myclass(engine->getLuaStack()->getLuaState());
6、編譯運行。這樣HelloWorld這個類就被導出到lua了。
測試------------------------------------------------
打開hello.lua，編輯local function main()這個函數
把前面改成
local function main()
-- avoid memory leak
collectgarbage("setpause", 100)
collectgarbage("setstepmul", 5000)
local hello = HelloWorld:create()
local sceneGame = cc.Scene:create()
sceneGame:addChild(hello)
cc.Director:getInstance():runWithScene(sceneGame)
if(1==1) then
return
end
……
……
㈢ cocos2dx下完後怎麼運行
一. 啟動終端（點擊Finder－前往－實用工具－終端）；
二.將你下載的zip包解壓，mac下直接雙擊，放到某一文件夾下；
三.在終端上進入剛解壓的文件夾，cd 到目錄cocos2d-x-3.2, 然後輸入如下命令運行：./setup.py;
四.輸入 source /Users/HQ（你的用戶名）/.bash_profile 這是用來刷新配置文件的;
五.cocos new MyProject -p com.YouCompany -l cpp -d Project/Games
註： MyProject項目名 可任意命名、com.YouCompany包名 可任意命名、Project/Games 保存文件夾路徑 可任意寫
運行後就創建新項目了，到xcode中打開
㈣ cocos2dx怎麼遍歷資源文件夾里的文件
第一步在：在ZipFile添加方法，因為_dataThread是個私有的，盡量不改變源碼的情況下，添加一個get方法是最好的
這個getAllFile可以返回所有的文件目錄
std::vector<std::string>ZipFile::getAllFile(){
std::vector<std::string> vec;
ZipFilePrivate::FileListContainer::iterator it1;
for(it1=_dataThread->fileList.begin();it1!=_dataThread->fileList.end();++it1) {
vec.push_back(it1->first.c_str());
}
return vec;
}
第二步：使用getAllFile的返回值做遍歷,這里直接帖出iOS和Android的同時遍歷吧,同時搜索png和jpg的圖片，可以用於載入資源，記得導入頭文件
#include "support/zip_support/ZipUtils.h"
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
#include <dirent.h>
#include <sys/stat.h>
#else
#include "platform/CCCommon.h"
#include "support/zip_support/unzip.h"
#include "jni/Java_org_cocos2dx_lib_Cocos2dxHelper.h"
#endif
void ResourceLoadingLayer::getAllFile(std::string folderPath,int depth, std::vector<std::string> *list, std::string head){
#if CC_PLATFORM_IOS == CC_TARGET_PLATFORM
DIR *dp;
structdirent *entry;
structstat statbuf;
if((dp =opendir(folderPath.c_str())) ==NULL) {
fprintf(stderr,"cannot open directory: %s\n", folderPath.c_str());
return;
}
chdir(folderPath.c_str());
while((entry =readdir(dp)) != NULL) {
lstat(entry->d_name,&statbuf);
if(S_ISDIR(statbuf.st_mode)) {
if(strcmp(".",entry->d_name) == 0 ||
strcmp("..",entry->d_name) ==0)
continue;
getAllFile(entry->d_name,depth+4,list,head+entry->d_name);
} else {
if (head.length() ==0) {
string name = entry->d_name;
if (name.length()>3 && name.rfind(".") > 0 && (name.substr(name.rfind(".")+1,3) == "jpg" || name.substr(name.rfind(".")+1,3) == "png")) {
list->push_back(entry->d_name);
}
} else {
string filename = head+"/" +entry->d_name;
if (filename.length()>3 && filename.rfind(".") > 0 && (filename.substr(filename.rfind(".")+1,3) == "jpg" || filename.substr(filename.rfind(".")+1,3) == "png")) {
list->push_back(filename);
}
}
}
}
chdir("..");
closedir(dp);
#else
ZipFile* pFile = new ZipFile(getApkPath(),"assets/");
vector<string> vec = pFile->getAllFile();
for (int i=0; i<vec.size(); i++) {
string file = vec.at(i);
if (file.compare("assets/")) {
file = file.substr(7,file.length());
}
if(file.substr(0,folderPath.length()) == folderPath ){
string filename = file.substr(file.rfind("/")+1,file.length());
if (filename.length()>3 && filename.rfind(".") >0 && (filename.substr(filename.rfind(".")+1,3) =="jpg" || filename.substr(filename.rfind(".")+1,3) =="png") {
list->push_back(filename);
}
}
}
#endif
}
第三步，使用：
首先得拿到資源文件夾的完整路徑，方法有很多，只舉其一：
在HelloWorld的工程下的資源根目錄有一張HelloWorld.png圖片，我們可以直接獲取它在程序中的完整路徑，即
string fullpath = CCFileUtils::sharedFileUtils()->fullPathForFilename("HelloWorld.png");
所以 string resPath = fullpath.substr(0,fullpath.rfind("/")+1);
得到了完整的資源路徑後，
vector<string> vec;
getAllFile(resPath, 0, &vec, "");
這樣就大功告成了，vec會保存所有的png或jpg的資源，會帶head名的哦，比如說bg/welcome.jpg
上面是遍歷所有的文件夾，如果單獨遍歷資源文件下的某個目錄，即是
getAllFile(resPath+"xxx",0,&vec,""); xxx 為資源根目錄下的子目錄，這樣就可以分別載入某個目錄了