cocos2d-x 读取 json 文件并用 jsoncpp 做解析
一码胜万言（请看注释）
CclUtil.h
// // CclUtil.h // PracticeDemo // // Created by kodeyang on 8/1/13. // // #ifndef __Practice_Demo__CclUtil__ #define __Practice_Demo__CclUtil__ #include "cocos2d.h" #include <string> using namespace cocos2d; using namespace std; /** * cocos2d-x 读取 Json 文件并做解析 * 依赖 jsoncpp 库。 * 注意，cocos2d-x 的 extension 中包含了另一个 json.h 头文件， * 而 jsoncpp 所要引入的头文件也是 json.h，这就导致如果不做改名处理的话编译将很难通过， * 我也是在将 jsoncpp 库的头文件 json.h 改成 jsoncpp.h 之后才解决编译问题的。 * 最后，不要忘记在 Header Search Paths 中将 jsoncpp 库所处的目录加上。 */ void parse(CCLayer* in_pLyr, const char* in_pArrCharCclName); #endif /* defined(__Practice_Demo__CclUtil__) */
CclUtil.cpp
//
// CclUtil.cpp
// PracticeDemo
//
// Created by kodeyang on 8/1/13.
//
//
#include "CclUtil.h"
#include "Jsoncpp.h"
void parse(CCLayer* in_pLyr, const char* in_pArrCharCclName) {
CCFileUtils* t_pFileUtils = CCFileUtils::sharedFileUtils();
string t_oStrFullPath = t_pFileUtils->fullPathForFilename(in_pArrCharCclName);
unsigned char* t_pArrCharBuffer = NULL;
unsigned long t_lBufferSize = 0;
t_pArrCharBuffer = t_pFileUtils->getFileData(t_oStrFullPath.c_str(), "r", &t_lBufferSize);
printf("%ld", t_lBufferSize);
string t_oStrContent((char*)t_pArrCharBuffer, t_lBufferSize);
printf("读取文件的内容为：%s", t_oStrContent.c_str());
Json::Value t_oValueSprites;
Json::Reader t_oReader;
t_oReader.parse(t_oStrContent, t_oValueSprites);
for (int i = 0; i < t_oValueSprites.size(); i ++) {
Json::Value tmp_oValueSprite = t_oValueSprites[i];
string tmp_oStrName = tmp_oValueSprite["image"].asString();
printf("精灵所使用的图片名称为 %s\n", tmp_oStrName.c_str());
CCSprite* sprite = CCSprite::create(tmp_oStrName.c_str());
float x = tmp_oValueSprite["x"].asDouble();
float y = tmp_oValueSprite["y"].asDouble();
sprite->setPosition(ccp(x, y));
in_pLyr->addChild(sprite);
}
if (t_pArrCharBuffer) {
delete [] t_pArrCharBuffer;
t_pArrCharBuffer = NULL;
}
}
QuickLayer.h
//
// QuickLayer.h
// TestSocket
//
// Created by kodeyang on 7/18/13.
//
//
#ifndef TestSocket_QuickLayer_h
#define TestSocket_QuickLayer_h
#include "cocos2d.h"
using namespace cocos2d;
class QuickLayer : public CCLayer {
public:
static CCScene* scene();
CREATE_FUNC(QuickLayer);
virtual bool init();
private:
};
#endif
QuickLayer.cpp
//
// QuickLayer.cpp
// TestSocket
//
// Created by kodeyang on 7/18/13.
//
//
#include "QuickLayer.h"
#include "CclUtil.h"
CCScene* QuickLayer::scene() {
// 'scene' is an autorelease object
CCScene* scene = CCScene::create();
// 'layer' is an autorelease object
QuickLayer* layer = QuickLayer::create();
// add layer as a child to scene
scene->addChild(layer);
// return the scene
return scene;
}
// on "init" you need to initialize your instance
bool QuickLayer::init() {
if (!CCLayer::init()) {
return false;
}
parse(this, "project.ccl");
return true;
}
project.ccl
[
{
"available": true,
"clickable": false,
"desc": "描述...",
"height": 480,
"image": "bg.png",
"visible": true,
"width": 320,
"x": 160,
"y": 240,
"zorder": -999
},
{
"available": true,
"clickable": true,
"desc": "描述...",
"height": 30,
"image": "btn_ok.png",
"visible": true,
"width": 50,
"x": 155,
"y": 414,
"zorder": 1
},
{
"available": true,
"clickable": true,
"desc": "描述...",
"height": 40,
"image": "btn_options.png",
"visible": true,
"width": 80,
"x": 151,
"y": 140,
"zorder": 2
}
]