cocos2dX 學習筆記——音樂、音效和進度條

每個遊戲都需要音樂和音效，當然進度條也是必不可少一種，可以用于于技能CD，是以就用代碼介紹和實作一下以上三種。

.cpp中

#include "FifthScene.h"

#include "HelloWorldScene.h"

#include "cocos2d.h"

#include "fourthScene.h"

//音樂需要SimpleAudioEngine頭檔案還需要CocosDenshion命名空間;

#include "SimpleAudioEngine.h"

using namespace CocosDenshion;

USING_NS_CC;

cocos2d::CCScene * FifthScene::createScene()

{

   CCScene * scene = CCScene::create();

   FifthScene * layer = FifthScene::create();

   scene->addChild(layer);

   return scene;

}

bool FifthScene::init()

{

   if (!Layer::init())

   {

       return false;

   }

   //MenuItemSprite;

   Sprite * spriteNormal = Sprite::create("shi.png");

   Sprite * spriteSelect = Sprite::create("ming.png");

   MenuItemSprite * pMenuItem = MenuItemSprite::create(

       spriteNormal,

       spriteSelect,

       CC_CALLBACK_1(FifthScene::EnterFifthScene, this));

   //MenuItemLabel;

   Label * label1 = Label::create("This is My FifthScene", "calibri.ttf", 30);

   label1->setColor(Color3B(255, 0, 0));

   MenuItemLabel * pMenuItemLabel = MenuItemLabel::create(label1, CC_CALLBACK_1(FifthScene::EnterFifthScene, this));

   //MenuItemToggle;

   //未選中的精靈;

   auto spriteNToggle = Sprite::create("quan.png");

   //選中狀态的精靈;

   auto spriteToggle = Sprite::create("yuan.png");

   //将精靈包裝成Menuitem 用于建立toggle;

   auto musicOn = MenuItemSprite::create(spriteToggle, spriteToggle);

   auto musicOff = MenuItemSprite::create(spriteNToggle, spriteNToggle);

   //建立toggle;

   MenuItemToggle * menuItemToggle = MenuItemToggle::createWithCallback(

       CC_CALLBACK_1(FifthScene::menuCallBack, this),

       musicOn,

       musicOff,

       NULL);

   //auto menu = Menu::create(menuItemToggle, NULL);

   //this->addChild(menu);

   //建立音樂音效點選按鈕;

   MenuItemSprite * btnMenuSprite = MenuItemSprite::create(

       Sprite::create("ren.png"),

       Sprite::create("li.png"),

       CC_CALLBACK_1(FifthScene::btnSpriteCallBack, this));

   //預加載;

   SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic("yue.wav");

   SimpleAudioEngine::sharedEngine()->preloadEffect("yin.wav");

   //播放音樂;

   SimpleAudioEngine::sharedEngine()->playBackgroundMusic("yue.wav");

   isPause = false;

   //建立Menu;

   Menu * pMenu = Menu::create(pMenuItem, pMenuItemLabel, menuItemToggle, btnMenuSprite, NULL);

   pMenu->setPosition(Director::getInstance()->convertToUI(Point(500, 300)));

   //間隔;

   pMenu->alignItemsVerticallyWithPadding(55);

   this->addChild(pMenu);

   pMenuItem->setScale(3);

   建立進度條;

   //表示進度條到多少百分比執行3秒停在80%;

   //auto progressTo=ProgressTo::create(3,80);

   //表示進度條從百分幾到百分幾執行三秒從20% 到80% ;

   //auto progressFromTo = ProgressFromTo::create(3,20,80);

   //   ProgressTimer 用來渲染精靈對象的百分比有三種形态Radial, Horizontal or vertical ;

   //首先生成一個ProgressTimer對象;

   //auto pgTimer = ProgressTimer::create(Sprite::create("xuan.png"));

   設定進度條類型;

   //pgTimer->setType(ProgressTimer::Type::BAR);

   添加到this中;

   //this->addChild(pgTimer);

   讓進度條動起來;

   //pgTimer->runAction(RepeatForever::create(progressTo));

   //圓形進度條;

   //首先建立一張圖檔;

   auto sp1 = Sprite::create("yuan.png");

   //設定進度條的速度和到達目标量;

   auto pt1 = ProgressTo::create(3.0f, 85);

   //生成一個ProgressTimer對象;

   auto ptm1 = ProgressTimer::create(sp1);

   //設定進度條類型;

   ptm1->setType(ProgressTimerType::RADIAL);

   //使進度條運動;

   ptm1->runAction(RepeatForever::create(pt1));

   ptm1->setPosition(Point(100, 500));

   this->addChild(ptm1);

   //條形進度條;

   //從左到右;

   auto sp2 = Sprite::create("xuan.png");

   auto pt2 = ProgressTo::create(5.0f, 100);

   auto ptm2 = ProgressTimer::create(sp2);

   ptm2->setType(ProgressTimerType::BAR);

   ptm2->runAction(pt2);

   ptm2->setMidpoint(Point(0, 1));

   ptm2->setBarChangeRate(Point(1, 0));

   ptm2->setPosition(300, 500);

   this->addChild(ptm2);

   //從下到上;

   auto sp3 = Sprite::create("xuan.png");

   auto pt3 = ProgressTo::create(3.5f, 75);

   auto ptm3 = ProgressTimer::create(sp3);

   ptm3->setType(ProgressTimerType::BAR);

   ptm3->runAction(RepeatForever::create(pt3));

   ptm3->setMidpoint(Point(1, 0));

   ptm3->setBarChangeRate(Point(0, 1));

   ptm3->setPosition(Point(550, 500));

   this->addChild(ptm3);

   //變幻形态;

   auto sp4 = Sprite::create("yuan.png");

   auto pt4 = ProgressTo::create(4.5f, 100);

   auto ptm4 = ProgressTimer::create(sp4);

   ptm4->setType(ProgressTimerType::RADIAL);

   ptm4->setPosition(Point(600, 500));

   //從目前的tint轉換為自定義的tint;

   auto tint = Sequence::create(

       TintTo::create(3, 255, 0, 0),

       TintTo::create(2, 0, 255, 0),

       TintTo::create(5, 0, 0, 255),

       NULL);

   //淡入實作;

   auto fade = Sequence::create(

       FadeTo::create(3, 0),

       FadeTo::create(3, 255),

       NULL);

   ptm4->runAction(RepeatForever::create(pt4));

   ptm4->runAction(RepeatForever::create(tint));

   //ptm4->runAction(RepeatForever::create(fade));

   this->addChild(ptm4);

   return true;

}

void FifthScene::EnterFifthScene(Ref * ref)

{

   Director::getInstance()->replaceScene(TransitionFadeTR::create(1.0f, HelloWorld::createScene()));

}

//參數Ref辨別點選的MenuItem;

void FifthScene::menuCallBack(Ref * ref)

{

   auto item = (MenuItemToggle *)ref;

   //擷取目前選擇的下标根據下标TODO ;

   item->getSelectedIndex();

   CCLOG("%d", item->getSelectedIndex());

   if (item->getSelectedIndex() == 0)

   {

   }

   else if (item->getSelectedIndex() == 1)

   {

       關于音樂;

       預加載背景音樂;

       //SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic("music.mp3");

       開始播放背景音樂， true 辨別循環;

       //SimpleAudioEngine::sharedEngine()->playBackgroundMusic("music.mp3", true);

       停止背景音樂傳參代表是否釋放音樂檔案;

       //SimpleAudioEngine::sharedEngine()->stopBackgroundMusic();

       暫停背景音樂;

       //SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();

       重新調用背景音樂;

       //SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic();

       傳回不二類型參數，表示是否再放背景音樂;

       //SimpleAudioEngine::sharedEngine()->isBackgroundMusicPlaying();

       設定音量0.0-1.0;

       //SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5f);

       //音樂釋放;

       //SimpleAudioEngine::sharedEngine()->end();

       關于音效;

       預加載背景音效;

       //SimpleAudioEngine::sharedEngine()->preloadEffect("music.mp3");

       開始播放音效 false代表不循環;

       //SimpleAudioEngine::sharedEngine()->playEffect("music.mp3",false);

       停止音效可以選擇單獨停掉一個音效這個值是由playEffect傳回的;

       //SimpleAudioEngine::sharedEngine()->stopEffect(2);

       停止所有音效;

       //SimpleAudioEngine::sharedEngine()->stopAllEffects();

       暫停音效;

       //SimpleAudioEngine::sharedEngine()->pauseEffect(2);

       重新開始音效;

       //SimpleAudioEngine::sharedEngine()->resumeEffect(2);

       暫停所有音效;

       //SimpleAudioEngine::sharedEngine()->pauseAllEffects();

       重新開始所有音效;

       //SimpleAudioEngine::sharedEngine()->resumeAllEffects();

       設定音效音量;

       //SimpleAudioEngine::sharedEngine()->setEffectsVolume(0.5);

       解除安裝音效;

       //SimpleAudioEngine::sharedEngine()->unloadEffect("music.mp3");

       //擷取音量;

       //SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume();

   }

}

void FifthScene::btnSpriteCallBack(Ref * ref)

{

   if (isPause == false)

   {

       SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();

       isPause = true;

       CCLOG("false");

   }

   else

   {

       SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic();

       SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5);

       isPause = false;

       CCLOG("true");

   }

}

.h中

cocos2dX 學習筆記——音樂、音效和進度條

cocos2dX 學習筆記——音樂、音效和進度條

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