cocos2dx游戏--欢欢英雄传说--添加动作

添加完人物之后接着给人物添加上动作。
我们为hero添加4个动作：attack（由3张图片构成）,walk（由2张图片构成）,hit（由1张图片构成）,dead（由1张图片构成）；同样，为enemy添加4个动作：attack（由3张图片构成）,walk（由2张图片构成）,hit（由1张图片构成）,dead（由1张图片构成）。
取名分别为：hero-attack-0.png,hero-attack-1.png,hero-attack-2.png,hero-walk-0.png,hero-walk-1.png,hero-hit-0.png,hero-dead-0.png,enemy-attack-0.png,enemy-attack-1.png,enemy-attack-2.png,enemy-walk-0.png,enemy-walk-1.png,enemy-hit-0.png,enemy-dead-0.png。
其中，hero开头的表示hero的动作；enemy开头的表示enemy的动作。attack表示攻击时的动作，walk表示走路时的动作，hit表示受伤时的动作，dead表示死亡时的动作。这些图片资源如下：
hero-attack-0.png:

hero-attack-1.png:

hero-attack-2.png:

hero-walk-0.png:

hero-walk-1.png:

hero-hit-0.png:

hero-dead-0.png:

enemy-attack-0.png:

enemy-attack-1.png:

enemy-attack-2.png:

enemy-walk-0.png:

enemy-walk-1.png:

enemy-hit-0.png:

enemy-dead-0.png:

然后这些图片都存放在Resources/image/目录下，我们需要为这些图片组合成一些列的动作。下面的代码演示了如何将这些图片组合成8个animation并存放在AnimationCache中：
HelloWorld::init()部分代码:

// hero-attack
    spriteFrame = CCSpriteFrame::create("images/hero-attack-0.png", CCRectMake(0, 0, 122, 134));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-attack-0.png");
    spriteFrame = CCSpriteFrame::create("images/hero-attack-1.png", CCRectMake(0, 0, 111, 134));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-attack-1.png");
    spriteFrame = CCSpriteFrame::create("images/hero-attack-2.png", CCRectMake(0, 0, 97, 129));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-attack-2.png");
    // hero-walk
    spriteFrame = CCSpriteFrame::create("images/hero-walk-0.png", CCRectMake(0, 0, 100, 137));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-walk-0.png");
    spriteFrame = CCSpriteFrame::create("images/hero-walk-1.png", CCRectMake(0, 0, 96, 137));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-walk-1.png");
    // hero-hit
    spriteFrame = CCSpriteFrame::create("images/hero-hit-0.png", CCRectMake(0, 0, 93, 148));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-hit-0.png");
    // hero-dead
    spriteFrame = CCSpriteFrame::create("images/hero-dead-0.png", CCRectMake(0, 0, 134, 71));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-dead-0.png");

    // enemy-attack
    spriteFrame = CCSpriteFrame::create("images/enemy-attack-0.png", CCRectMake(0, 0, 105, 143));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-attack-0.png");
    spriteFrame = CCSpriteFrame::create("images/enemy-attack-1.png", CCRectMake(0, 0, 145, 137));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-attack-1.png");
    spriteFrame = CCSpriteFrame::create("images/enemy-attack-2.png", CCRectMake(0, 0, 120, 140));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-attack-2.png");
    // enemy-walk
    spriteFrame = CCSpriteFrame::create("images/enemy-walk-0.png", CCRectMake(0, 0, 125, 145));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-walk-0.png");
    spriteFrame = CCSpriteFrame::create("images/enemy-walk-1.png", CCRectMake(0, 0, 100, 119));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-walk-1.png");
    // enemy-hit
    spriteFrame = CCSpriteFrame::create("images/enemy-hit-0.png", CCRectMake(0, 0, 72, 122));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-hit-0.png");
    // enemy-dead
    spriteFrame = CCSpriteFrame::create("images/enemy-dead-0.png", CCRectMake(0, 0, 154, 62));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-dead-0.png");


    /** add animation cache **/
    // hero-attack
    auto animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 3; i ++)
    {
        auto sfName =String::createWithFormat("hero-attack-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "hero-attack");
    // hero-walk
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 2; i ++)
    {
        auto sfName =String::createWithFormat("hero-walk-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "hero-walk");
    // hero-hit
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 1; i ++)
    {
        auto sfName =String::createWithFormat("hero-hit-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "hero-hit");
    // hero-dead
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 1; i ++)
    {
        auto sfName =String::createWithFormat("hero-dead-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "hero-dead");

    // enemy-attack
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 3; i ++)
    {
        auto sfName =String::createWithFormat("enemy-attack-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "enemy-attack");
    // hero-walk
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 2; i ++)
    {
        auto sfName =String::createWithFormat("enemy-walk-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "enemy-walk");
    // hero-hit
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 1; i ++)
    {
        auto sfName =String::createWithFormat("enemy-hit-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "enemy-hit");
    // hero-dead
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 1; i ++)
    {
        auto sfName =String::createWithFormat("enemy-dead-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "enemy-dead");

我们在Player中添加一个函数来查看效果：

在Player.h中添加：

    void runActionForever(std::string action);

在Player.cpp中添加：

void Player::runActionForever(std::string action)
{
    auto animation = AnimationCache::getInstance()->getAnimation(action);
    auto animate = Animate::create(animation);
    this->runAction(RepeatForever::create(animate));
}

然后在HelloWorld::init()最后添加如下代码查看效果：

    player->runActionForever("hero-attack");
    enemy->runActionForever("enemy-walk");

效果如下：

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

USING_NS_CC;

Scene* HelloWorld::createScene()
{
    // 'scene' is an autorelease object
    auto scene = Scene::create();

    // 'layer' is an autorelease object
    auto layer = HelloWorld::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 HelloWorld::init()
{
    if ( !Layer::init() )
    {
        return false;
    }

    auto visibleSize = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();

    Sprite* background = Sprite::create("images/background.png");
    background->setPosition(origin + visibleSize/2);
    this->addChild(background);

    SpriteFrame *spriteFrame = CCSpriteFrame::create("images/hero-0.png", CCRectMake(0, 0, 99, 140));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-0.png");
    spriteFrame = CCSpriteFrame::create("images/enemy-0.png", CCRectMake(0, 0, 112, 136));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-0.png");
    // hero-attack
    spriteFrame = CCSpriteFrame::create("images/hero-attack-0.png", CCRectMake(0, 0, 122, 134));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-attack-0.png");
    spriteFrame = CCSpriteFrame::create("images/hero-attack-1.png", CCRectMake(0, 0, 111, 134));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-attack-1.png");
    spriteFrame = CCSpriteFrame::create("images/hero-attack-2.png", CCRectMake(0, 0, 97, 129));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-attack-2.png");
    // hero-walk
    spriteFrame = CCSpriteFrame::create("images/hero-walk-0.png", CCRectMake(0, 0, 100, 137));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-walk-0.png");
    spriteFrame = CCSpriteFrame::create("images/hero-walk-1.png", CCRectMake(0, 0, 96, 137));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-walk-1.png");
    // hero-hit
    spriteFrame = CCSpriteFrame::create("images/hero-hit-0.png", CCRectMake(0, 0, 93, 148));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-hit-0.png");
    // hero-dead
    spriteFrame = CCSpriteFrame::create("images/hero-dead-0.png", CCRectMake(0, 0, 134, 71));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "hero-dead-0.png");

    // enemy-attack
    spriteFrame = CCSpriteFrame::create("images/enemy-attack-0.png", CCRectMake(0, 0, 105, 143));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-attack-0.png");
    spriteFrame = CCSpriteFrame::create("images/enemy-attack-1.png", CCRectMake(0, 0, 145, 137));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-attack-1.png");
    spriteFrame = CCSpriteFrame::create("images/enemy-attack-2.png", CCRectMake(0, 0, 120, 140));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-attack-2.png");
    // enemy-walk
    spriteFrame = CCSpriteFrame::create("images/enemy-walk-0.png", CCRectMake(0, 0, 125, 145));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-walk-0.png");
    spriteFrame = CCSpriteFrame::create("images/enemy-walk-1.png", CCRectMake(0, 0, 100, 119));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-walk-1.png");
    // enemy-hit
    spriteFrame = CCSpriteFrame::create("images/enemy-hit-0.png", CCRectMake(0, 0, 72, 122));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-hit-0.png");
    // enemy-dead
    spriteFrame = CCSpriteFrame::create("images/enemy-dead-0.png", CCRectMake(0, 0, 154, 62));
    SpriteFrameCache::getInstance()->addSpriteFrame(spriteFrame, "enemy-dead-0.png");


    /** add animation cache **/
    // hero-attack
    auto animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 3; i ++)
    {
        auto sfName =String::createWithFormat("hero-attack-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "hero-attack");
    // hero-walk
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 2; i ++)
    {
        auto sfName =String::createWithFormat("hero-walk-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "hero-walk");
    // hero-hit
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 1; i ++)
    {
        auto sfName =String::createWithFormat("hero-hit-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "hero-hit");
    // hero-dead
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 1; i ++)
    {
        auto sfName =String::createWithFormat("hero-dead-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "hero-dead");

    // enemy-attack
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 3; i ++)
    {
        auto sfName =String::createWithFormat("enemy-attack-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "enemy-attack");
    // hero-walk
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 2; i ++)
    {
        auto sfName =String::createWithFormat("enemy-walk-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "enemy-walk");
    // hero-hit
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 1; i ++)
    {
        auto sfName =String::createWithFormat("enemy-hit-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "enemy-hit");
    // hero-dead
    animation = Animation::create();
    animation->setDelayPerUnit(0.2f);
    for (int i = 0; i < 1; i ++)
    {
        auto sfName =String::createWithFormat("enemy-dead-%d.png", i)->getCString();
        animation->addSpriteFrame(SpriteFrameCache::getInstance()->getSpriteFrameByName(sfName));
    }
    AnimationCache::getInstance()->addAnimation(animation, "enemy-dead");


    Player* player = Player::create(Player::PlayerType::HERO);
    player->setPosition(origin.x + player->getContentSize().width/2, origin.y + visibleSize.height/2);
    this->addChild(player);
    Player* enemy = Player::create(Player::PlayerType::ENEMY);
    enemy->setPosition(origin.x + visibleSize.width - player->getContentSize().width/2, origin.y + visibleSize.height/2);
    this->addChild(enemy);

    player->runActionForever("hero-attack");
    enemy->runActionForever("enemy-walk");

    return true;
}


void HelloWorld::menuCloseCallback(Ref* pSender)
{
    Director::getInstance()->end();

#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    exit(0);
#endif
}

#ifndef __Palyer__
#define __Player__
#include "cocos2d.h"
USING_NS_CC;

class Player : public Sprite
{
public:
    enum PlayerType
    {
        HERO,
        ENEMY
    };
    bool initWithPlayerType(PlayerType type);
    static Player* create(PlayerType type);
    void runActionForever(std::string action);
};

#endif

#include "Player.h"
bool Player::initWithPlayerType(PlayerType type)
{
    std::string spName = "";
    switch (type)
    {
        case PlayerType::HERO:
            spName = "hero-0.png";
            break;
        case PlayerType::ENEMY:
            spName = "enemy-0.png";
            break;
    }
    this->initWithSpriteFrameName(spName);
    return true;
}
Player* Player::create(PlayerType type)
{
    Player* player = new Player();
    if (player && player->initWithPlayerType(type))
    {
        player->autorelease();
        return player;
    }
    else
    {
        delete player;
        player = NULL;
        return NULL;
    }
}
void Player::runActionForever(std::string action)
{
    auto animation = AnimationCache::getInstance()->getAnimation(action);
    auto animate = Animate::create(animation);
    this->runAction(RepeatForever::create(animate));
}