100匹のネコ (4)Texture Atlas画像の非同期読込み

HelloWorldScene.cpp

#include "HelloWorldScene.h"
#include "SimpleAudioEngine.h"

using namespace cocos2d;
using namespace CocosDenshion;

CCScene* HelloWorld::scene()
{
    CCScene *scene = CCScene::create();
    HelloWorld *layer = HelloWorld::create();
    scene->addChild(layer);
    
    return scene;
}

bool HelloWorld::init()
{
    if ( !CCLayer::init() )
    {
        return false;
    }
    
    srand((unsigned)time(NULL));
    
    //usingSprite();
    //usingSpriteFrameCache();
    //usingTextureCache();
    usingTextureCache2();
    
    return true;
}

void HelloWorld::usingSprite()
{
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();
    
    start = clock();
    
    for (int i = 0; i < 100; i++) {
        int random = rand();
        
        // ふつうの表示
        CCString* fileName = CCString::createWithFormat("cat%02d.png", i);
        CCSprite* cat = CCSprite::create(fileName->getCString());
        cat->setPosition(ccp(random % (int)winSize.width,
                             random % (int)winSize.height));
        this->addChild(cat);
    }
    
    CCLog("%f", (double)(clock() - start) / CLOCKS_PER_SEC);
}

void HelloWorld::usingSpriteFrameCache()
{
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();
    
    start = clock();
    
    // キャッシュへ読込み
    CCSpriteFrameCache* cache = CCSpriteFrameCache::sharedSpriteFrameCache();
    cache->addSpriteFramesWithFile("cats1.plist");
    cache->addSpriteFramesWithFile("cats2.plist");
    
    for (int i = 0; i < 100; i++) {
        int random = rand();
        
        // キャッシュから表示
        CCString* fileName = CCString::createWithFormat("cat%02d.png", i);
        CCSprite* cat = CCSprite::createWithSpriteFrameName(fileName->getCString());
        cat->setPosition(ccp(random % (int)winSize.width,
                             random % (int)winSize.height));
        this->addChild(cat);
    }
    
    CCLog("%f", (double)(clock() - start) / CLOCKS_PER_SEC);
}

void HelloWorld::usingTextureCache()
{
    start = clock();
    
    for (int i = 0; i < 100; i++)
    {
        CCString* fileName = CCString::createWithFormat("cat%02d.png", i);
        CCTextureCache* cache = CCTextureCache::sharedTextureCache();
        
        //キャッシュへ非同期で読込み
        cache->addImageAsync(fileName->getCString(), this, callfuncO_selector(HelloWorld::loadedImage));
    }
    
    CCLog("%f", (double)(clock() - start) / CLOCKS_PER_SEC);
}

void HelloWorld::loadedImage(cocos2d::CCObject* object)
{
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();
    
    //キャッシュから表示
    CCTexture2D* texture = (CCTexture2D*)object;
    int random = rand();
    CCSprite* cat = CCSprite::createWithTexture(texture);
    cat->setPosition(ccp(random % (int)winSize.width, random % (int)winSize.height));
    this->addChild(cat);
    
    static int i = 0;
    
    if (++i == 100)
    {
        CCLog("%f", (double)(clock() - start) / CLOCKS_PER_SEC);
    }
}

void HelloWorld::usingTextureCache2()
{
    start = clock();
    
    for (int i = 1; i <= 2; i++)
    {
        CCString* fileName = CCString::createWithFormat("cats%d.png", i);
        CCTextureCache* cache = CCTextureCache::sharedTextureCache();
        
        //キャッシュへ非同期で読込み
        cache->addImageAsync(fileName->getCString(), this, callfuncO_selector(HelloWorld::loadedImage2));
    }
    
    CCLog("%f", (double)(clock() - start) / CLOCKS_PER_SEC);
}

void HelloWorld::loadedImage2(cocos2d::CCObject* object)
{
    static int i = 0;
    
    // 危険なコードなので絶対にマネしないでください
    CCString* fileName = CCString::createWithFormat("cats%d.plist", i + 1);
    CCSpriteFrameCache* cache = CCSpriteFrameCache::sharedSpriteFrameCache();
    cache->addSpriteFramesWithFile(fileName->getCString(), (CCTexture2D*)object);
    
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();
    
    for (int j = 0; j < 50; j++)
    {
        int random = rand();
        
        //キャッシュから表示
        CCString* fileName = CCString::createWithFormat("cat%02d.png", j + i * 50);
        CCSprite* cat = CCSprite::createWithSpriteFrameName(fileName->getCString());
        cat->setPosition(ccp(random % (int)winSize.width,
                             random % (int)winSize.height));
        this->addChild(cat);
    }
    
    if (++i == 2)
    {
        CCLog("%f", (double)(clock() - start) / CLOCKS_PER_SEC);
    }
}

HelloWorldScene.h

//#ifndef __HELLOWORLD_SCENE_H__
//#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"

class HelloWorld : public cocos2d::CCLayer
{
private:
    clock_t start;

    void usingSprite();
    void usingSpriteFrameCache();
    void usingTextureCache();
    void loadedImage(cocos2d::CCObject* object);
    void usingTextureCache2();
    void loadedImage2(cocos2d::CCObject* object);

public:
    virtual bool init();
    static cocos2d::CCScene* scene();
    CREATE_FUNC(HelloWorld);
};

//#endif // __HELLOWORLD_SCENE_H__