Cocos2d-x 3.2 自动更新 -- 使用AssetsManager更新游戏资源包

Android和win32已经测试通过，理论上IOS也可以。

1、AssetsManagerDelegateProtocol

AssetsManagerDelegateProtocol，用于与服务器校验版本号，更新下载资源包，并对成功、出错、下载进度等进行回调。

2、资源包名称

所下载资源包名称默认为：cocos2dx-update-temp-package.zip。

如果想要修改文件名，直接修改引擎下 extensions\assets-manager\AsetsManager.ccp中的TEMP_PACKAGE_FILE_NAME



3、服务器

下以是我的资源包路径和本版号。
http://shezzer.sinaapp.com/downloadTest/cocos2dx-update-temp-package.zip http://shezzer.sinaapp.com/downloadTest/version.php
4、实现

// Upgrade.h

//<img src="http://img.blog.csdn.net/20140728093037654?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvTGlhbmdzaGFvemU=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast" alt="" />

// Created by Sharezer on 14-07-26.

//

//

#ifndef _UPGRADE_H_

#define _UPGRADE_H_

#include "cocos2d.h"

#include "extensions/cocos-ext.h"

class Upgrade : public cocos2d::CCLayer, public cocos2d::extension::AssetsManagerDelegateProtocol

{

public:

Upgrade();

virtual ~Upgrade();

virtual bool init();

void upgrade(cocos2d::Ref* pSender); //检查版本更新

void reset(cocos2d::Ref* pSender); //重置版本

virtual void onError(cocos2d::extension::AssetsManager::ErrorCode errorCode); //错误信息

virtual void onProgress(int percent); //更新下载进度

virtual void onSuccess(); //下载成功

CREATE_FUNC(Upgrade);

private:

cocos2d::extension::AssetsManager* getAssetManager();

void initDownloadDir(); //创建下载目录

private:

std::string _pathToSave;

cocos2d::Label *_showDownloadInfo;

};

#endif

//Upgrade.cpp

#include "Upgrade.h"

#include "HelloWorldScene.h"

#if (CC_TARGET_PLATFORM != CC_PLATFORM_WIN32)

#include <dirent.h>

#include <sys/stat.h>

#endif

USING_NS_CC;

USING_NS_CC_EXT;

#define DOWNLOAD_FIEL "download" //下载后保存的文件夹名

Upgrade::Upgrade():

_pathToSave(""),

_showDownloadInfo(NULL)

{

}

Upgrade::~Upgrade()

{

AssetsManager* assetManager = getAssetManager();

CC_SAFE_DELETE(assetManager);

}

bool Upgrade::init()

{

if (!CCLayer::init())

{

return false;

}

Size winSize = Director::getInstance()->getWinSize();

initDownloadDir();

_showDownloadInfo = Label::createWithSystemFont("", "Arial", 20);

this->addChild(_showDownloadInfo);

_showDownloadInfo->setPosition(Vec2(winSize.width / 2, winSize.height / 2 - 20));

auto itemLabel1 = MenuItemLabel::create(

Label::createWithSystemFont("Reset", "Arail", 20), CC_CALLBACK_1(Upgrade::reset, this));

auto itemLabel2 = MenuItemLabel::create(

Label::createWithSystemFont("Upgrad", "Arail", 20), CC_CALLBACK_1(Upgrade::upgrade, this));

auto menu = Menu::create(itemLabel1, itemLabel2, NULL);

this->addChild(menu);

itemLabel1->setPosition(Vec2(winSize.width / 2, winSize.height / 2 + 20));

itemLabel2->setPosition(Vec2(winSize.width / 2, winSize.height / 2 ));

menu->setPosition(Vec2::ZERO);

return true;

}

void Upgrade::onError(AssetsManager::ErrorCode errorCode)

{

if (errorCode == AssetsManager::ErrorCode::NO_NEW_VERSION)

{

_showDownloadInfo->setString("no new version");

}

else if (errorCode == AssetsManager::ErrorCode::NETWORK)

{

_showDownloadInfo->setString("network error");

}

else if (errorCode == AssetsManager::ErrorCode::CREATE_FILE)

{

_showDownloadInfo->setString("create file error");

}

}

void Upgrade::onProgress(int percent)

{

if (percent < 0)

return;

char progress[20];

snprintf(progress, 20, "download %d%%", percent);

_showDownloadInfo->setString(progress);

}

void Upgrade::onSuccess()

{

CCLOG("download success");

_showDownloadInfo->setString("download success");

std::string path = FileUtils::getInstance()->getWritablePath() + DOWNLOAD_FIEL;

//FileUtils::getInstance()->addSearchPath(path, true);

auto scene = HelloWorld::scene();

Director::getInstance()->replaceScene(scene);

}

AssetsManager* Upgrade::getAssetManager()

{

static AssetsManager *assetManager = NULL;

if (!assetManager)

{

assetManager = new AssetsManager("http://shezzer.sinaapp.com/downloadTest/cocos2dx-update-temp-package.zip",

"http://shezzer.sinaapp.com/downloadTest/version.php",

_pathToSave.c_str());

assetManager->setDelegate(this);

assetManager->setConnectionTimeout(3);

}

return assetManager;

}

void Upgrade::initDownloadDir()

{

CCLOG("initDownloadDir");

_pathToSave = CCFileUtils::getInstance()->getWritablePath();

_pathToSave += DOWNLOAD_FIEL;

CCLOG("Path: %s", _pathToSave.c_str());

#if (CC_TARGET_PLATFORM != CC_PLATFORM_WIN32)

DIR *pDir = NULL;

pDir = opendir(_pathToSave.c_str());

if (!pDir)

{

mkdir(_pathToSave.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);

}

#else

if ((GetFileAttributesA(_pathToSave.c_str())) == INVALID_FILE_ATTRIBUTES)

{

CreateDirectoryA(_pathToSave.c_str(), 0);

}

#endif

CCLOG("initDownloadDir end");

}

void Upgrade::reset(Ref* pSender)

{

_showDownloadInfo->setString("");

// Remove downloaded files

#if (CC_TARGET_PLATFORM != CC_PLATFORM_WIN32)

string command = "rm -r ";

// Path may include space.

command += "\"" + _pathToSave + "\"";

system(command.c_str());

#else

std::string command = "rd /s /q ";

// Path may include space.

command += "\"" + _pathToSave + "\"";

system(command.c_str());

#endif

getAssetManager()->deleteVersion();

initDownloadDir();

}

void Upgrade::upgrade(Ref* pSender)

{

_showDownloadInfo->setString("");

getAssetManager()->update();

}

运行：



Reset：重置版本号，办删除下载资源。

Upgrad：校验版本号，当有更新时下载新资源。



_pathToSave保存着文件的下载路径，压缩包下载下来后，将被自动解压到_pathToSave中。

以win32为，在cocos2d-x\build\Debug.win32\ 中，可以看到我们之前设置的下载目录download。

onSuccess中，当下载成功后，将跳转到HelloWorld。

这时可以在HelloWorld中直接使用已下载的资源。



具体实现代码见下载地址：点击打开链接
http://download.csdn.net/detail/liangshaoze/7685415