入门小游戏

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从图书馆借了本木头的书籍，以下实例来自书籍，写在这里仅作笔记。。

游戏内容大概如下：

1.一个Sprite在地图上一直在跑，Sprite可以跳跃（其实是地图不断向左滚动）

2.途中有金币，Sprite吃金币，左上方的Score会++，并且会有+15的字样出现

1.创建实体类Entity，这是一个基类，主要用来绑定一个精灵，返回一个精灵

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#ifndef Entity_H
#define Entity_H
 
#include"cocos2d.h"
using namespace cocos2d;
 
classEntity:publicCCNode
{
public:
    Entity();
 
    ~Entity();
 
    CCSprite* getSprite();
 
    voidbindSprite(CCSprite* sprite);
 
private:
    CCSprite* m_sprite;
};
#endif

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#include"Entity.h"
 
Entity::Entity()
{
    m_sprite=NULL;
}
Entity::~Entity()
{
 
};
 
CCSprite* Entity::getSprite()
{
    returnthis->m_sprite;
}
voidEntity::bindSprite(CCSprite* sprite){
    this->m_sprite=sprite;
    this->addChild(m_sprite);
}

2.创建一个玩家主角类，可以jump，吃金币等

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#ifndef _Player_H
#define _Player_H
 
#include"cocos2d.h"
#include"Entity.h"
 
 
using namespace cocos2d;
 
#define JUMP_ACTION_TAG 1;
 
classPlayer:publicEntity
{
public:
    Player();
    ~Player();
    CREATE_FUNC(Player);
    virtual bool init();
public:
    voidjump();
    voidjumpEnd();
    voidhit();//主角和怪物撞击（玩家受伤害）
    intgetMoney();
    CCRect getBoundingBox();/*获取碰撞范围*/
    voidresetData();
    voidactionEnd();
private:
    bool m_isJumping;
    intm_money;/*金钱*/
 
};
#endif

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#include"Player.h"
#include"FlowWord.h"
 
Player::Player()
{
    m_isJumping=false;
    m_money=0;/*初始金钱为0*/
}
Player::~Player()
{
 
}
bool Player::init()
{
    returntrue;
}
 
voidPlayer::jump()
{
    if(!getSprite())
    {
        return;
    }
    if(m_isJumping)/*如果主角还在跳跃中，则不重复跳跃*/
    {
        return;
    }
 
    m_isJumping=true;
 
    /*创建动作，2s，原地跳跃(即落地的地点相对于起跳地点x偏移0，y偏移0)，高度250，弹跳次数1*/
    CCJumpBy* jump=CCJumpBy::create(1.5f,ccp(0,0),200,1);
    /*callFunc也是一个动作，作用是调用一个函数*/
    CCCallFunc* callFunc = CCCallFunc::create(this, callfunc_selector(Player::jumpEnd));
    /*组合动作*/
    CCActionInterval* jumpActions=CCSequence::create(jump,callFunc,NULL);
     
    runAction(jumpActions);
}
 
voidPlayer::jumpEnd()
{
    m_isJumping=false;
}
voidPlayer::hit()
{
    if(getSprite()==NULL)
    {
        return;
    }
    /*加钱特效提示*/
    FlowWord* flowword=FlowWord::create();
    this->addChild(flowword);
    flowword->showWord("+15",getSprite()->getPosition());
     
    m_money+=15;
 
    /*创建4种动作对象*/
    CCMoveBy* backMove=CCMoveBy::create(0.1f,ccp(-20,0));
    CCMoveBy* forwardMove=CCMoveBy::create(0.1f,ccp(20,0));
    CCRotateBy* backRotate=CCRotateBy::create(0.1f,-5,0);
    CCRotateBy* forwardRotate=CCRotateBy::create(0.1f,5,0);
 
    /*分别组合成两种动作(同时执行)*/
    CCSpawn* backActions=CCSpawn::create(backMove,backRotate,NULL);
    CCSpawn* forwardActions=CCSpawn::create(forwardMove,forwardRotate,NULL);
 
    CCCallFunc* callFunc=CCCallFunc::create(this,callfunc_selector(Player::actionEnd));
 
    CCActionInterval* actions=CCSequence::create(backActions,forwardActions,callFunc,NULL);
     
    //this->stopAllActions();
    //resetData();
 
    this->runAction(actions);
 
 
}
voidPlayer::resetData()
{
    if(m_isJumping)
    {
        m_isJumping=false;
    }
    this->setPosition(ccp(200,500/4));
    this->setScale(1.0f);
    setRotation(0);
}
intPlayer::getMoney()
{
    returnm_money;
}
CCRect Player::getBoundingBox()
{
    if(getSprite()==NULL){
        returnCCRectMake(0,0,0,0);
    }
    /*由于Sprite是放在Player上的，所以要检测Player的碰撞范围*/
    CCSize spriteSize=getSprite()->getContentSize();
    CCPoint entityPos=this->getPosition();//获取player中心点
 
    //获取Player左下角的坐标值
    intx=entityPos.x-spriteSize.width/2;
    inty=entityPos.y-spriteSize.height/2;
 
    returnCCRectMake(x,y,spriteSize.width,spriteSize.height);
}
 
voidPlayer::actionEnd()
{
    this->setScale(1.0f);
    setRotation(0);
}

3.创建怪物类（金币），继承于实体类
--

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#ifndef _Monster_H_
#define _Monster_H_
 
#include"Entity.h"
#include"cocos2d.h"
#include"Player.h"
#include"ccMacros.h"
 
USING_NS_CC;
 
classMonster:publicEntity
{
public:
    Monster();
    ~Monster();
    CREATE_FUNC(Monster);
    virtual bool init();
     
public:
    voidshow();
    voidhide();
    voidreset();//重置怪物数据
    bool isAlive();//是否活动状态
 
    bool isCollideWithPlayer(Player* player);//检测是否碰撞
private:
    bool m_isAlive;
};
#endif

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#include"Monster.h"
 
Monster::Monster()
{
}
Monster::~Monster()
{
}
bool Monster::init()
{
    returntrue;
}
voidMonster::show()
{
    if(getSprite()!=NULL)
    {
        this->setVisible(true);
        m_isAlive=true;/*标记为活动状态*/
    }
}
voidMonster::hide()
{
    if(getSprite()!=NULL)
    {
        this->setVisible(false);
        reset();
        m_isAlive=false;/*标记为活动状态*/
    }
}
voidMonster::reset()
{
    if(getSprite()!=NULL)
    {
        /*初始化怪物坐标,宽度(800-2800),高度（100-200）*/
        this->setPosition(ccp(800+CCRANDOM_0_1()*2000,200-CCRANDOM_0_1()*100));
    }
}
bool Monster::isAlive()
{
    returnm_isAlive;
}
bool Monster::isCollideWithPlayer(Player* player)
{
    CCRect playerRect=player->getBoundingBox();
    CCPoint monsterPos=getPosition();
 
    /*判断是否有交集*/
    returnplayerRect.containsPoint(monsterPos);
}

4.创建怪物管理器类（MonsterManger），用来管理怪物的显示和隐藏

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#ifndef __MonsterManger_H__
#define __MonsterManger_H__
 
#include"cocos2d.h"
#include"Player.h"
USING_NS_CC;
 
#define MAX_MONSTER_NUM 10
 
classMonsterManger:publicCCNode
{
public:
    MonsterManger();
    ~MonsterManger();
    CREATE_FUNC(MonsterManger);
    virtual bool init();                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        virtual voidupdate(floatdt);/*重写update函数*/
    voidbindPlayer(Player* player);
private:
    voidcreateMonsters();/*创建Monster对象*/
private:
    CCArray* m_monsterArr;/*存放怪物数组*/
    Player* m_player;
};
 
#endif

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#include"MonsterManger.h"
#include"Monster.h"
 
MonsterManger::MonsterManger(){}
 
MonsterManger::~MonsterManger(){}
 
bool MonsterManger::init()
{
    bool bRet=false;
    do
    {
        createMonsters();/*创建怪物*/
        this->scheduleUpdate();/*启用update*/
        bRet=true;
    }while(0);
    returnbRet;
     
}
 
 
voidMonsterManger::createMonsters()
{
    m_monsterArr=CCArray::create();
    m_monsterArr->retain();/*防止数组被释放*/
 
    Monster* monster=NULL;
    CCSprite* sprite=NULL;
 
    for(inti=0;i<max_monster_num; i++)=""{=""monster="Monster::create();"monster-="">bindSprite(CCSprite::create("monster.png"));
        monster->reset();
 
        this->addChild(monster); /*将怪物添加到管理器(CCNode)中*/
        m_monsterArr->addObject(monster);/*添加到数组中，便于管理*/
    }
}
 
voidMonsterManger::update(floatdt)
{
    CCObject* obj=NULL;
    Monster* monster=NULL;
     
    CCARRAY_FOREACH(m_monsterArr,obj)/*循环遍历怪物数组，重复出现在屏幕上*/
    {
        monster=(Monster*) obj;
        if(monster->isAlive())/*活动状态*/
        {
            monster->setPositionX(monster->getPositionX()-3);//左移
            if(monster->getPositionX()<0)
            {
                monster->hide();
 
            }elseif(monster->isCollideWithPlayer(m_player)){
                m_player->hit();
                monster->hide();
            }
         
        }else/*非活动状态*/
        {
            monster->show();//
        }
    }
}
voidMonsterManger::bindPlayer(Player* player)
{
    this->m_player=player;
    this->m_player->retain();//引用计数 +1
}</max_monster_num;>

5.创建文字飘动效果，（在主角身上显示"+15"特效）

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#ifndef __FlowWord_H__
#define __FlowWord_H__
 
#include"cocos2d.h"
USING_NS_CC;
 
classFlowWord:publicCCNode
{
public:
    FlowWord();
    ~FlowWord();
    CREATE_FUNC(FlowWord);
    virtual bool init();
public:
    voidshowWord(constchar* text, CCPoint pos);
    voidflowEnd();
private:
    CCLabelTTF* m_textLab;
};
 
#endif

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#include"FlowWord.h"
 
FlowWord::FlowWord(){}
 
FlowWord::~FlowWord(){}
 
bool FlowWord::init()
{
    m_textLab=CCLabelTTF::create("","Arial",30);
    m_textLab->setColor(ccc3(255,0,0));
    m_textLab->setVisible(false);
 
    this->addChild(m_textLab);
 
    returntrue;
}
 
voidFlowWord::showWord(constchar* str,CCPoint pos)
{
    m_textLab->setString(str);
    m_textLab->setPosition(pos);
    m_textLab->setAnchorPoint(ccp(1,0));
    m_textLab->setVisible(true);
 
    //先放大后缩小
    CCActionInterval* scaleLarge=CCScaleTo::create(0.3f,2.5f,2.5f);
    CCActionInterval* scaleSmall=CCScaleTo::create(0.4f,0.5f,0.5f);
    //回调动作，移除效果
    CCCallFunc* callFunc=CCCallFunc::create(this,callfunc_selector(FlowWord::flowEnd));
 
    CCActionInterval* actions=CCSequence::create(scaleLarge,scaleSmall,callFunc,NULL);
 
    m_textLab->runAction(actions);
}
 
voidFlowWord::flowEnd()
{
    m_textLab->setVisible(false);
    /*true: 从父节点移除，并移除节点的动作和回调函数*/
    m_textLab->removeFromParentAndCleanup(true);
}

6.创建游戏场景类，所有游戏的效果都在这上面展示

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#ifndef __TollgateScene_H__
#define __TollgateScene_H__
 
#include"cocos2d.h"
#include"cocos-ext.h"
#include"Player.h"
using namespace cocos2d;
using namespace cocos2d::extension;
 
 
classTollgateScene : publicCCLayer {
public:
    staticCCScene* scene();
    virtual bool init();
    CREATE_FUNC(TollgateScene);
 
    virtualvoidupdate(floatdelta);
 
private:
    voidinitBG();  /* 初始化关卡背景 */
    voidcreateJumpBtn();/*创建跳跃按钮*/
    voidjumpEvent(CCObject* pSender,CCControlEvent event);/*响应按钮点击事件*/
 
    voidcreateScoreLab();/*创建分数标签*/
    voidcreateTimeSlider();/*创建时间条*/
private:
    CCSprite* m_bgSprite1;
    CCSprite* m_bgSprite2;
 
    Player* m_player;
 
    CCLabelTTF* m_scoreLab;//分数标签
    CCControlSlider* m_TimeSlider;//时间条
 
    intm_score;    /*得分*/
    intm_curTime; /*当前时间*/
};
 
#endif

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#include"TollgateScene.h"
#include"MonsterManger.h"
 
CCScene* TollgateScene::scene() {
    CCScene* scene = NULL;
    do
    {
        scene = CCScene::create();
        CC_BREAK_IF(!scene);
 
        TollgateScene* layer = TollgateScene::create();
        CC_BREAK_IF(!layer);
 
        scene->addChild(layer,1);
    }while(0);
 
    returnscene;
}
 
bool TollgateScene::init() {
    bool bRet = false;
 
    do
    {
        CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();
 
        /*游戏标题图片*/
//      CCSprite* titleSprite = CCSprite::create("title.png");
//      titleSprite->setPosition(ccp(visibleSize.width / 2, visibleSize.height - 50));
//      this->addChild(titleSprite, 2);
 
        /*创建猪脚*/
        CCSprite* sprite = CCSprite::create("sprite.png");
        //sprite->setFlipX(true);
        m_player = Player::create();
        m_player->bindSprite(sprite);
        m_player->setPosition(ccp(200, visibleSize.height / 4));
         
        this->addChild(m_player,1);
         
        /*初始化背景图片*/
        initBG();
 
        /*创建按钮*/
        createJumpBtn();
 
        /*设置启用CCNode的update()函数,游戏会在每一帧调用update()函数*/
        this->scheduleUpdate();
 
        /*创建怪物管理器(管理器里面放了很多怪物)*/
        MonsterManger* monsterManger=MonsterManger::create();
        monsterManger->bindPlayer(m_player);
        this->addChild(monsterManger,4);
 
        /*创建分数标签*/
        createScoreLab();
        /*创建时间条*/
        createTimeSlider();
 
        bRet = true;
    }while(0);
 
    returnbRet;
}
 
voidTollgateScene::initBG() {
    CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();
 
    m_bgSprite1 = CCSprite::create("tollgateBG.jpg");
    m_bgSprite1->setPosition(ccp(visibleSize.width / 2, visibleSize.height / 2));
    this->addChild(m_bgSprite1,0);
 
    m_bgSprite2 = CCSprite::create("tollgateBG.jpg");
    m_bgSprite2->setPosition(ccp(visibleSize.width + visibleSize.width / 2, visibleSize.height / 2));
    m_bgSprite2->setFlipX(true);
    this->addChild(m_bgSprite2,0);
}
 
voidTollgateScene::update(floatdelta)
{
    CCSize mapSize=m_bgSprite1->getContentSize();//地图大小
 
    intposX1=m_bgSprite1->getPositionX();  //地图1的x坐标
    intposX2=m_bgSprite2->getPositionX();   //地图2的x坐标
 
    intiSpeed = 2;//地图滚动的速度
 
    posX1-=iSpeed; //两张地图一起向左滚动
    posX2-=iSpeed;
 
    //创建无限循环
    if(posX1<=-mapSize.width/2)
    {
        posX1=mapSize.width+mapSize.width/2;
        posX2=mapSize.width/2;
    }
    if(posX2<=-mapSize.width/2)
    {
        posX1=mapSize.width/2;
        posX2=mapSize.width+mapSize.width/2;
    }
 
    m_bgSprite1->setPositionX(posX1);
    m_bgSprite2->setPositionX(posX2);
 
    /*分数增加*/
    m_score=m_player->getMoney();
    m_scoreLab->setString(CCString::createWithFormat("Score:%d",m_score)->getCString());
 
    m_TimeSlider->setValue(--m_curTime);
     
}
voidTollgateScene::createJumpBtn()
{
    CCSize visibleSize=CCDirector::sharedDirector()->getVisibleSize();
 
    /*按钮标题*/
    CCLabelTTF* jumpLabel=CCLabelTTF::create("Jump","Arial",35);
 
    /*按钮状态图片*/
    CCScale9Sprite* jumpNorBG=CCScale9Sprite::create("button.png");
    CCScale9Sprite* jumpLightBG=CCScale9Sprite::create("buttonHighlighted.png");
     
    /*创建按钮*/
    CCControlButton* jumpBtn=CCControlButton::create(jumpLabel,jumpNorBG);
    jumpBtn->setPosition(ccp(visibleSize.width-80,50));
    jumpBtn->setBackgroundSpriteForState(jumpLightBG,CCControlStateHighlighted);
     
    /*添加事件*/
    jumpBtn->addTargetWithActionForControlEvents(this,
        cccontrol_selector(TollgateScene::jumpEvent),
        CCControlEventTouchDown);
 
    this->addChild(jumpBtn);
}
 
voidTollgateScene::jumpEvent(CCObject* pSender,CCControlEvent event)
{
    m_player->jump();
}
 
voidTollgateScene::createScoreLab()
{
    m_score=m_player->getMoney();
    CCSize visibleSize=CCDirector::sharedDirector()->getVisibleSize();
    m_scoreLab=CCLabelTTF::create("Score:"+m_score,"Arial",35);
    m_scoreLab->setAnchorPoint(ccp(0,1));
    m_scoreLab->setPosition(ccp(0,visibleSize.height));
    this->addChild(m_scoreLab);
 
}
 
voidTollgateScene::createTimeSlider()
{
    CCSize visibleSize=CCDirector::sharedDirector()->getVisibleSize();
    m_curTime=10000;
    m_TimeSlider=CCControlSlider::create(
        CCSprite::create("background.png"),
        CCSprite::create("progress.png"),
        CCSprite::create("sliderThumb.png")
        );
    m_TimeSlider->setPosition(ccp(
        m_TimeSlider->getContentSize().width/2,
        visibleSize.height-m_TimeSlider->getContentSize().height-m_scoreLab->getContentSize().height
        ));
    m_TimeSlider->setTouchEnabled(false);
    m_TimeSlider->setMaximumValue(10000);
    m_TimeSlider->setMinimumValue(0);
    m_TimeSlider->setValue(m_curTime);
    this->addChild(m_TimeSlider,3);
}

运行效果如下

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