CCDirector.cpp

/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2011      Zynga Inc.

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
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****************************************************************************/
#include "CCDirector.h"
#include "ccFPSImages.h"
#include "draw_nodes/CCDrawingPrimitives.h"
#include "CCConfiguration.h"
#include "cocoa/CCNS.h"
#include "layers_scenes_transitions_nodes/CCScene.h"
#include "cocoa/CCArray.h"
#include "CCScheduler.h"
#include "ccMacros.h"
#include "touch_dispatcher/CCTouchDispatcher.h"
#include "support/CCPointExtension.h"
#include "support/CCNotificationCenter.h"
#include "layers_scenes_transitions_nodes/CCTransition.h"
#include "textures/CCTextureCache.h"
#include "sprite_nodes/CCSpriteFrameCache.h"
#include "cocoa/CCAutoreleasePool.h"
#include "platform/platform.h"
#include "platform/CCFileUtils.h"
#include "CCApplication.h"
#include "label_nodes/CCLabelBMFont.h"
#include "label_nodes/CCLabelAtlas.h"
#include "actions/CCActionManager.h"
#include "CCConfiguration.h"
#include "keypad_dispatcher/CCKeypadDispatcher.h"
#include "CCAccelerometer.h"
#include "sprite_nodes/CCAnimationCache.h"
#include "touch_dispatcher/CCTouch.h"
#include "support/user_default/CCUserDefault.h"
#include "shaders/ccGLStateCache.h"
#include "shaders/CCShaderCache.h"
#include "kazmath/kazmath.h"
#include "kazmath/GL/matrix.h"
#include "support/CCProfiling.h"
#include "CCEGLView.h"
#include <string>

/**
 Position of the FPS

 Default: 0,0 (bottom-left corner)
 */
#ifndef CC_DIRECTOR_STATS_POSITION
#define CC_DIRECTOR_STATS_POSITION CCDirector::sharedDirector()->getVisibleOrigin()
#endif

using namespace std;

unsigned int g_uNumberOfDraws = 0;

NS_CC_BEGIN
// XXX it should be a Director ivar. Move it there once support for multiple directors is added

// singleton stuff
static CCDisplayLinkDirector *s_SharedDirector = NULL;

#define kDefaultFPS        60  // 60 frames per second
extern const char* cocos2dVersion(void);

CCDirector* CCDirector::sharedDirector(void)
{
    if (!s_SharedDirector)
    {
        s_SharedDirector = new CCDisplayLinkDirector();
        s_SharedDirector->init();
    }

    return s_SharedDirector;
}

CCDirector::CCDirector(void)
{

}

bool CCDirector::init(void)
{
    CCLOG("cocos2d: %s", cocos2dVersion());


    // CORE HACK - TRY TO REMOVE
    spaceBarDown = upArrowKeyDown = downArrowKeyDown = leftArrowKeyDown = rightArrowKeyDown = bKeyDown = false;
    numberOneDown = numberTwoDown = numberThreeDown = numberFourDown = numberFiveDown = numberSixDown = false;
    numberOnePressed = numberTwoPressed = numberThreePressed = numberFourPressed = numberFivePressed = numberSixPressed = false;
    // CORE HACK - TRY TO REMOVE



    // scenes
    m_pRunningScene = NULL;
    m_pNextScene = NULL;

    m_pNotificationNode = NULL;

    m_dOldAnimationInterval = m_dAnimationInterval = 1.0 / kDefaultFPS;
    m_pobScenesStack = new CCArray();
    m_pobScenesStack->init();

    // Set default projection (3D)
    m_eProjection = kCCDirectorProjectionDefault;

    // projection delegate if "Custom" projection is used
    m_pProjectionDelegate = NULL;

    // FPS
    m_fAccumDt = 0.0f;
    m_fFrameRate = 0.0f;
    m_pFPSLabel = NULL;
    m_pSPFLabel = NULL;
    m_pDrawsLabel = NULL;
    m_bDisplayStats = false;
    m_uTotalFrames = m_uFrames = 0;
    m_pszFPS = new char[10];
    m_pLastUpdate = new struct cc_timeval();

    // paused ?
    m_bPaused = false;

    // purge ?
    m_bPurgeDirecotorInNextLoop = false;

    m_obWinSizeInPoints = CCSizeZero;

    m_pobOpenGLView = NULL;

    m_fContentScaleFactor = 1.0f;

    // scheduler
    m_pScheduler = new CCScheduler();
    // action manager
    m_pActionManager = new CCActionManager();
    m_pScheduler->scheduleUpdateForTarget(m_pActionManager, kCCPrioritySystem, false);
    // touchDispatcher
    m_pTouchDispatcher = new CCTouchDispatcher();
    m_pTouchDispatcher->init();

    // KeypadDispatcher
    m_pKeypadDispatcher = new CCKeypadDispatcher();

    // Accelerometer
    m_pAccelerometer = new CCAccelerometer();

    // create autorelease pool
    CCPoolManager::sharedPoolManager()->push();

    return true;
}

CCDirector::~CCDirector(void)
{
    CCLOG("cocos2d: deallocing CCDirector %p", this);

    CC_SAFE_RELEASE(m_pFPSLabel);
    CC_SAFE_RELEASE(m_pSPFLabel);
    CC_SAFE_RELEASE(m_pDrawsLabel);

    CC_SAFE_RELEASE(m_pRunningScene);
    CC_SAFE_RELEASE(m_pNotificationNode);
    CC_SAFE_RELEASE(m_pobScenesStack);
    CC_SAFE_RELEASE(m_pScheduler);
    CC_SAFE_RELEASE(m_pActionManager);
    CC_SAFE_RELEASE(m_pTouchDispatcher);
    CC_SAFE_RELEASE(m_pKeypadDispatcher);
    CC_SAFE_DELETE(m_pAccelerometer);

    // pop the autorelease pool
    CCPoolManager::sharedPoolManager()->pop();
    CCPoolManager::purgePoolManager();

    // delete m_pLastUpdate
    CC_SAFE_DELETE(m_pLastUpdate);
    // delete fps string
    delete []m_pszFPS;

    s_SharedDirector = NULL;
}

void CCDirector::setGLDefaultValues(void)
{
    // This method SHOULD be called only after openGLView_ was initialized
    CCAssert(m_pobOpenGLView, "opengl view should not be null");

    setAlphaBlending(true);
    // XXX: Fix me, should enable/disable depth test according the depth format as cocos2d-iphone did
    // [self setDepthTest: view_.depthFormat];
    setDepthTest(false);
    setProjection(m_eProjection);

    // set other opengl default values
    glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
}

// Draw the Scene
void CCDirector::drawScene(void)
{
    // calculate "global" dt
    calculateDeltaTime();

    //tick before glClear: issue #533
    if (! m_bPaused)
    {
        m_pScheduler->update(m_fDeltaTime);
    }

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    /* to avoid flickr, nextScene MUST be here: after tick and before draw.
     XXX: Which bug is this one. It seems that it can't be reproduced with v0.9 */
    if (m_pNextScene)
    {
        setNextScene();
    }

    kmGLPushMatrix();

    // draw the scene
    if (m_pRunningScene)
    {
        m_pRunningScene->visit();
    }

    // draw the notifications node
    if (m_pNotificationNode)
    {
        m_pNotificationNode->visit();
    }

    if (m_bDisplayStats)
    {
        showStats();
    }

    kmGLPopMatrix();

    m_uTotalFrames++;

    // swap buffers
    if (m_pobOpenGLView)
    {
        m_pobOpenGLView->swapBuffers();
    }

    if (m_bDisplayStats)
    {
        calculateMPF();
    }
}

void CCDirector::calculateDeltaTime(void)
{
    struct cc_timeval now;

    if (CCTime::gettimeofdayCocos2d(&now, NULL) != 0)
    {
        CCLOG("error in gettimeofday");
        m_fDeltaTime = 0;
        return;
    }

    // new delta time. Re-fixed issue #1277
    if (m_bNextDeltaTimeZero)
    {
        m_fDeltaTime = 0;
        m_bNextDeltaTimeZero = false;
    }
    else
    {
        m_fDeltaTime = (now.tv_sec - m_pLastUpdate->tv_sec) + (now.tv_usec - m_pLastUpdate->tv_usec) / 1000000.0f;
        m_fDeltaTime = MAX(0, m_fDeltaTime);
    }

#ifdef DEBUG
    // If we are debugging our code, prevent big delta time
    if(m_fDeltaTime > 0.2f)
    {
        m_fDeltaTime = 1 / 60.0f;
    }
#endif

    *m_pLastUpdate = now;
}
float CCDirector::getDeltaTime()
{
    return m_fDeltaTime;
}
void CCDirector::setOpenGLView(CCEGLView *pobOpenGLView)
{
    CCAssert(pobOpenGLView, "opengl view should not be null");

    if (m_pobOpenGLView != pobOpenGLView)
    {
        // EAGLView is not a CCObject
        delete m_pobOpenGLView; // [openGLView_ release]
        m_pobOpenGLView = pobOpenGLView;

        // set size
        m_obWinSizeInPoints = m_pobOpenGLView->getDesignResolutionSize();

        createStatsLabel();

        if (m_pobOpenGLView)
        {
            setGLDefaultValues();
        }

        CHECK_GL_ERROR_DEBUG();

        m_pobOpenGLView->setTouchDelegate(m_pTouchDispatcher);
        m_pTouchDispatcher->setDispatchEvents(true);
    }
}

void CCDirector::setViewport()
{
    if (m_pobOpenGLView)
    {
        m_pobOpenGLView->setViewPortInPoints(0, 0, m_obWinSizeInPoints.width, m_obWinSizeInPoints.height);
    }
}

void CCDirector::setNextDeltaTimeZero(bool bNextDeltaTimeZero)
{
    m_bNextDeltaTimeZero = bNextDeltaTimeZero;
}

void CCDirector::setProjection(ccDirectorProjection kProjection)
{
    CCSize size = m_obWinSizeInPoints;

    setViewport();

    switch (kProjection)
    {
    case kCCDirectorProjection2D:
        {
            kmGLMatrixMode(KM_GL_PROJECTION);
            kmGLLoadIdentity();
            kmMat4 orthoMatrix;
            kmMat4OrthographicProjection(&orthoMatrix, 0, size.width, 0, size.height, -1024, 1024 );
            kmGLMultMatrix(&orthoMatrix);
            kmGLMatrixMode(KM_GL_MODELVIEW);
            kmGLLoadIdentity();
        }
        break;

    case kCCDirectorProjection3D:
        {
            float zeye = this->getZEye();

            kmMat4 matrixPerspective, matrixLookup;

            kmGLMatrixMode(KM_GL_PROJECTION);
            kmGLLoadIdentity();

            // issue #1334
            kmMat4PerspectiveProjection( &matrixPerspective, 60, (GLfloat)size.width/size.height, 0.1f, zeye*2);
            // kmMat4PerspectiveProjection( &matrixPerspective, 60, (GLfloat)size.width/size.height, 0.1f, 1500);

            kmGLMultMatrix(&matrixPerspective);

            kmGLMatrixMode(KM_GL_MODELVIEW);
            kmGLLoadIdentity();
            kmVec3 eye, center, up;
            kmVec3Fill( &eye, size.width/2, size.height/2, zeye );
            kmVec3Fill( &center, size.width/2, size.height/2, 0.0f );
            kmVec3Fill( &up, 0.0f, 1.0f, 0.0f);
            kmMat4LookAt(&matrixLookup, &eye, &center, &up);
            kmGLMultMatrix(&matrixLookup);
        }
        break;

    case kCCDirectorProjectionCustom:
        if (m_pProjectionDelegate)
        {
            m_pProjectionDelegate->updateProjection();
        }
        break;

    default:
        CCLOG("cocos2d: Director: unrecognized projection");
        break;
    }

    m_eProjection = kProjection;
    ccSetProjectionMatrixDirty();
}

void CCDirector::purgeCachedData(void)
{
    CCLabelBMFont::purgeCachedData();
    if (s_SharedDirector->getOpenGLView())
    {
        CCTextureCache::sharedTextureCache()->removeUnusedTextures();
    }
    CCFileUtils::sharedFileUtils()->purgeCachedEntries();
}

float CCDirector::getZEye(void)
{
    return (m_obWinSizeInPoints.height / 1.1566f);
}

void CCDirector::setAlphaBlending(bool bOn)
{
    if (bOn)
    {
        ccGLBlendFunc(CC_BLEND_SRC, CC_BLEND_DST);
    }
    else
    {
        ccGLBlendFunc(GL_ONE, GL_ZERO);
    }

    CHECK_GL_ERROR_DEBUG();
}

void CCDirector::setDepthTest(bool bOn)
{
    if (bOn)
    {
        glClearDepth(1.0f);
        glEnable(GL_DEPTH_TEST);
        glDepthFunc(GL_LEQUAL);
//        glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
    }
    else
    {
        glDisable(GL_DEPTH_TEST);
    }
    CHECK_GL_ERROR_DEBUG();
}

static void
GLToClipTransform(kmMat4 *transformOut)
{
    kmMat4 projection;
    kmGLGetMatrix(KM_GL_PROJECTION, &projection);

    kmMat4 modelview;
    kmGLGetMatrix(KM_GL_MODELVIEW, &modelview);

    kmMat4Multiply(transformOut, &projection, &modelview);
}

CCPoint CCDirector::convertToGL(const CCPoint& uiPoint)
{
    kmMat4 transform;
    GLToClipTransform(&transform);

    kmMat4 transformInv;
    kmMat4Inverse(&transformInv, &transform);

    // Calculate z=0 using -> transform*[0, 0, 0, 1]/w
    kmScalar zClip = transform.mat[14]/transform.mat[15];

    CCSize glSize = m_pobOpenGLView->getDesignResolutionSize();
    kmVec3 clipCoord = {2.0f*uiPoint.x/glSize.width - 1.0f, 1.0f - 2.0f*uiPoint.y/glSize.height, zClip};

    kmVec3 glCoord;
    kmVec3TransformCoord(&glCoord, &clipCoord, &transformInv);

    return ccp(glCoord.x, glCoord.y);
}

CCPoint CCDirector::convertToUI(const CCPoint& glPoint)
{
    kmMat4 transform;
    GLToClipTransform(&transform);

    kmVec3 clipCoord;
    // Need to calculate the zero depth from the transform.
    kmVec3 glCoord = {glPoint.x, glPoint.y, 0.0};
    kmVec3TransformCoord(&clipCoord, &glCoord, &transform);

    CCSize glSize = m_pobOpenGLView->getDesignResolutionSize();
    return ccp(glSize.width*(clipCoord.x*0.5 + 0.5), glSize.height*(-clipCoord.y*0.5 + 0.5));
}

CCSize CCDirector::getWinSize(void)
{
    return m_obWinSizeInPoints;
}

CCSize CCDirector::getWinSizeInPixels()
{
    return CCSizeMake(m_obWinSizeInPoints.width * m_fContentScaleFactor, m_obWinSizeInPoints.height * m_fContentScaleFactor);
}

CCSize CCDirector::getVisibleSize()
{
    if (m_pobOpenGLView)
    {
        return m_pobOpenGLView->getVisibleSize();
    }
    else
    {
        return CCSizeZero;
    }
}

CCPoint CCDirector::getVisibleOrigin()
{
    if (m_pobOpenGLView)
    {
        return m_pobOpenGLView->getVisibleOrigin();
    }
    else
    {
        return CCPointZero;
    }
}

// scene management

void CCDirector::runWithScene(CCScene *pScene)
{
    CCAssert(pScene != NULL, "This command can only be used to start the CCDirector. There is already a scene present.");
    CCAssert(m_pRunningScene == NULL, "m_pRunningScene should be null");

    pushScene(pScene);
    startAnimation();
}

void CCDirector::replaceScene(CCScene *pScene)
{
    CCAssert(m_pRunningScene, "Use runWithScene: instead to start the director");
    CCAssert(pScene != NULL, "the scene should not be null");

    unsigned int index = m_pobScenesStack->count();

    m_bSendCleanupToScene = true;
    m_pobScenesStack->replaceObjectAtIndex(index - 1, pScene);

    m_pNextScene = pScene;
}

void CCDirector::pushScene(CCScene *pScene)
{
    CCAssert(pScene, "the scene should not null");

    m_bSendCleanupToScene = false;

    m_pobScenesStack->addObject(pScene);
    m_pNextScene = pScene;
}

void CCDirector::popScene(void)
{
    CCAssert(m_pRunningScene != NULL, "running scene should not null");

    m_pobScenesStack->removeLastObject();
    unsigned int c = m_pobScenesStack->count();

    if (c == 0)
    {
        end();
    }
    else
    {
        m_bSendCleanupToScene = true;
        m_pNextScene = (CCScene*)m_pobScenesStack->objectAtIndex(c - 1);
    }
}

void CCDirector::popToRootScene(void)
{
    CCAssert(m_pRunningScene != NULL, "A running Scene is needed");
    unsigned int c = m_pobScenesStack->count();

    if (c == 1)
    {
        m_pobScenesStack->removeLastObject();
        this->end();
    }
    else
    {
        while (c > 1)
        {
            CCScene *current = (CCScene*)m_pobScenesStack->lastObject();
            if( current->isRunning() )
            {
                current->onExitTransitionDidStart();
                current->onExit();
            }
            current->cleanup();

            m_pobScenesStack->removeLastObject();
            c--;
        }
        m_pNextScene = (CCScene*)m_pobScenesStack->lastObject();
        m_bSendCleanupToScene = false;
    }
}

void CCDirector::end()
{
    m_bPurgeDirecotorInNextLoop = true;
}

void CCDirector::purgeDirector()
{
    // cleanup scheduler
    getScheduler()->unscheduleAll();

    // don't release the event handlers
    // They are needed in case the director is run again
    m_pTouchDispatcher->removeAllDelegates();

    if (m_pRunningScene)
    {
        m_pRunningScene->onExitTransitionDidStart();
        m_pRunningScene->onExit();
        m_pRunningScene->cleanup();
        m_pRunningScene->release();
    }

    m_pRunningScene = NULL;
    m_pNextScene = NULL;

    // remove all objects, but don't release it.
    // runWithScene might be executed after 'end'.
    m_pobScenesStack->removeAllObjects();

    stopAnimation();

    CC_SAFE_RELEASE_NULL(m_pFPSLabel);
    CC_SAFE_RELEASE_NULL(m_pSPFLabel);
    CC_SAFE_RELEASE_NULL(m_pDrawsLabel);

    // purge bitmap cache
    CCLabelBMFont::purgeCachedData();

    // purge all managed caches
    ccDrawFree();
    CCAnimationCache::purgeSharedAnimationCache();
    CCSpriteFrameCache::purgeSharedSpriteFrameCache();
    CCTextureCache::purgeSharedTextureCache();
    CCShaderCache::purgeSharedShaderCache();
    CCFileUtils::purgeFileUtils();
    CCConfiguration::purgeConfiguration();

    // cocos2d-x specific data structures
    CCUserDefault::purgeSharedUserDefault();
    CCNotificationCenter::purgeNotificationCenter();

    ccGLInvalidateStateCache();

    CHECK_GL_ERROR_DEBUG();

    // OpenGL view
    m_pobOpenGLView->end();
    m_pobOpenGLView = NULL;

    // delete CCDirector
    release();
}

void CCDirector::setNextScene(void)
{
    bool runningIsTransition = dynamic_cast<CCTransitionScene*>(m_pRunningScene) != NULL;
    bool newIsTransition = dynamic_cast<CCTransitionScene*>(m_pNextScene) != NULL;

    // If it is not a transition, call onExit/cleanup
     if (! newIsTransition)
     {
         if (m_pRunningScene)
         {
             m_pRunningScene->onExitTransitionDidStart();
             m_pRunningScene->onExit();
         }

         // issue #709. the root node (scene) should receive the cleanup message too
         // otherwise it might be leaked.
         if (m_bSendCleanupToScene && m_pRunningScene)
         {
             m_pRunningScene->cleanup();
         }
     }

    if (m_pRunningScene)
    {
        m_pRunningScene->release();
    }
    m_pRunningScene = m_pNextScene;
    m_pNextScene->retain();
    m_pNextScene = NULL;

    if ((! runningIsTransition) && m_pRunningScene)
    {
        m_pRunningScene->onEnter();
        m_pRunningScene->onEnterTransitionDidFinish();
    }
}

void CCDirector::pause(void)
{
    if (m_bPaused)
    {
        return;
    }

    m_dOldAnimationInterval = m_dAnimationInterval;

    // when paused, don't consume CPU
    setAnimationInterval(1 / 4.0);
    m_bPaused = true;
}

void CCDirector::resume(void)
{
    if (! m_bPaused)
    {
        return;
    }

    setAnimationInterval(m_dOldAnimationInterval);

    if (CCTime::gettimeofdayCocos2d(m_pLastUpdate, NULL) != 0)
    {
        CCLOG("cocos2d: Director: Error in gettimeofday");
    }

    m_bPaused = false;
    m_fDeltaTime = 0;
}

// display the FPS using a LabelAtlas
// updates the FPS every frame
void CCDirector::showStats(void)
{
    m_uFrames++;
    m_fAccumDt += m_fDeltaTime;

    if (m_bDisplayStats)
    {
        if (m_pFPSLabel && m_pSPFLabel && m_pDrawsLabel)
        {
            if (m_fAccumDt > CC_DIRECTOR_STATS_INTERVAL)
            {
                sprintf(m_pszFPS, "%.3f", m_fSecondsPerFrame);
                m_pSPFLabel->setString(m_pszFPS);

                m_fFrameRate = m_uFrames / m_fAccumDt;
                m_uFrames = 0;
                m_fAccumDt = 0;

                sprintf(m_pszFPS, "%.1f", m_fFrameRate);
                m_pFPSLabel->setString(m_pszFPS);

                sprintf(m_pszFPS, "%4lu", (unsigned long)g_uNumberOfDraws);
                m_pDrawsLabel->setString(m_pszFPS);
            }

            m_pDrawsLabel->visit();
            m_pFPSLabel->visit();
            m_pSPFLabel->visit();
        }
    }

    g_uNumberOfDraws = 0;
}

void CCDirector::calculateMPF()
{
    struct cc_timeval now;
    CCTime::gettimeofdayCocos2d(&now, NULL);

    m_fSecondsPerFrame = (now.tv_sec - m_pLastUpdate->tv_sec) + (now.tv_usec - m_pLastUpdate->tv_usec) / 1000000.0f;
}

// returns the FPS image data pointer and len
void CCDirector::getFPSImageData(unsigned char** datapointer, unsigned int* length)
{
    // XXX fixed me if it should be used
//    *datapointer = cc_fps_images_png;
//  *length = cc_fps_images_len();
}

void CCDirector::createStatsLabel()
{
    if( m_pFPSLabel && m_pSPFLabel )
    {
        CC_SAFE_RELEASE_NULL(m_pFPSLabel);
        CC_SAFE_RELEASE_NULL(m_pSPFLabel);
        CC_SAFE_RELEASE_NULL(m_pDrawsLabel);
        CCFileUtils::sharedFileUtils()->purgeCachedEntries();
    }

    int fontSize = 0;
    if (m_obWinSizeInPoints.width > m_obWinSizeInPoints.height)
    {
        fontSize = (int)(m_obWinSizeInPoints.height / 320.0f * 24);
    }
    else
    {
        fontSize = (int)(m_obWinSizeInPoints.width / 320.0f * 24);
    }

    m_pFPSLabel = CCLabelTTF::create("00.0", "Arial", fontSize);
    m_pFPSLabel->retain();
    m_pSPFLabel = CCLabelTTF::create("0.000", "Arial", fontSize);
    m_pSPFLabel->retain();
    m_pDrawsLabel = CCLabelTTF::create("000", "Arial", fontSize);
    m_pDrawsLabel->retain();

    CCSize contentSize = m_pDrawsLabel->getContentSize();
    m_pDrawsLabel->setPosition(ccpAdd(ccp(contentSize.width/2, contentSize.height*5/2), CC_DIRECTOR_STATS_POSITION));
    contentSize = m_pSPFLabel->getContentSize();
    m_pSPFLabel->setPosition(ccpAdd(ccp(contentSize.width/2, contentSize.height*3/2), CC_DIRECTOR_STATS_POSITION));
    contentSize = m_pFPSLabel->getContentSize();
    m_pFPSLabel->setPosition(ccpAdd(ccp(contentSize.width/2, contentSize.height/2), CC_DIRECTOR_STATS_POSITION));
}

float CCDirector::getContentScaleFactor(void)
{
    return m_fContentScaleFactor;
}

void CCDirector::setContentScaleFactor(float scaleFactor)
{
    if (scaleFactor != m_fContentScaleFactor)
    {
        m_fContentScaleFactor = scaleFactor;
        createStatsLabel();
    }
}

CCNode* CCDirector::getNotificationNode()
{
    return m_pNotificationNode;
}

void CCDirector::setNotificationNode(CCNode *node)
{
    CC_SAFE_RELEASE(m_pNotificationNode);
    m_pNotificationNode = node;
    CC_SAFE_RETAIN(m_pNotificationNode);
}

CCDirectorDelegate* CCDirector::getDelegate() const
{
    return m_pProjectionDelegate;
}

void CCDirector::setDelegate(CCDirectorDelegate* pDelegate)
{
    m_pProjectionDelegate = pDelegate;
}

void CCDirector::setScheduler(CCScheduler* pScheduler)
{
    if (m_pScheduler != pScheduler)
    {
        CC_SAFE_RETAIN(pScheduler);
        CC_SAFE_RELEASE(m_pScheduler);
        m_pScheduler = pScheduler;
    }
}

CCScheduler* CCDirector::getScheduler()
{
    return m_pScheduler;
}

void CCDirector::setActionManager(CCActionManager* pActionManager)
{
    if (m_pActionManager != pActionManager)
    {
        CC_SAFE_RETAIN(pActionManager);
        CC_SAFE_RELEASE(m_pActionManager);
        m_pActionManager = pActionManager;
    }
}

CCActionManager* CCDirector::getActionManager()
{
    return m_pActionManager;
}

void CCDirector::setTouchDispatcher(CCTouchDispatcher* pTouchDispatcher)
{
    if (m_pTouchDispatcher != pTouchDispatcher)
    {
        CC_SAFE_RETAIN(pTouchDispatcher);
        CC_SAFE_RELEASE(m_pTouchDispatcher);
        m_pTouchDispatcher = pTouchDispatcher;
    }
}

CCTouchDispatcher* CCDirector::getTouchDispatcher()
{
    return m_pTouchDispatcher;
}

void CCDirector::setKeypadDispatcher(CCKeypadDispatcher* pKeypadDispatcher)
{
    CC_SAFE_RETAIN(pKeypadDispatcher);
    CC_SAFE_RELEASE(m_pKeypadDispatcher);
    m_pKeypadDispatcher = pKeypadDispatcher;
}

CCKeypadDispatcher* CCDirector::getKeypadDispatcher()
{
    return m_pKeypadDispatcher;
}

void CCDirector::setAccelerometer(CCAccelerometer* pAccelerometer)
{
    if (m_pAccelerometer != pAccelerometer)
    {
        CC_SAFE_DELETE(m_pAccelerometer);
        m_pAccelerometer = pAccelerometer;
    }
}

CCAccelerometer* CCDirector::getAccelerometer()
{
    return m_pAccelerometer;
}

/***************************************************
* implementation of DisplayLinkDirector
**************************************************/

// should we implement 4 types of director ??
// I think DisplayLinkDirector is enough
// so we now only support DisplayLinkDirector
void CCDisplayLinkDirector::startAnimation(void)
{
    if (CCTime::gettimeofdayCocos2d(m_pLastUpdate, NULL) != 0)
    {
        CCLOG("cocos2d: DisplayLinkDirector: Error on gettimeofday");
    }

    m_bInvalid = false;
    CCApplication::sharedApplication()->setAnimationInterval(m_dAnimationInterval);
}

void CCDisplayLinkDirector::mainLoop(void)
{
    if (m_bPurgeDirecotorInNextLoop)
    {
        m_bPurgeDirecotorInNextLoop = false;
        purgeDirector();
    }
    else if (! m_bInvalid)
     {
         drawScene();

         // release the objects
         CCPoolManager::sharedPoolManager()->pop();
     }
}

void CCDisplayLinkDirector::stopAnimation(void)
{
    m_bInvalid = true;
}

void CCDisplayLinkDirector::setAnimationInterval(double dValue)
{
    m_dAnimationInterval = dValue;
    if (! m_bInvalid)
    {
        stopAnimation();
        startAnimation();
    }
}

NS_CC_END