之前制作的简单的一个小游戏，整理之后分享一下，只是最初的版本，后续完善版本不方便公布。

先看看最终示意图吧

如图所示，怪物由上至下移动，有五条道路，底部有一塔在攻击。

首先就是加载地图了

	//=========加载背景图========CCTMXTiledMap* tmxmap = CCTMXTiledMap::create("bg.tmx");tmxmap->setPosition(ccp(0,0));this->addChild(tmxmap,-1);

怪物类的实现Enemy.h

#pragma once#include "cocos2d.h"
#include "Box2D/Box2D.h"
#include "SimpleAudioEngine.h"
#include "cocos-ext.h"using namespace cocos2d;
using namespace extension;class Enemy : public cocos2d::CCSprite
{
public:CCControlSlider* slider;float speed;float hp;static Enemy* create();void run();void showHP();
};

Enemy.cpp

#include "Enemy.h"USING_NS_CC;Enemy* Enemy::create()
{Enemy *pobSprite = new Enemy();if (pobSprite && pobSprite->initWithFile("Enemy1.png")){pobSprite->speed = 1.0f;pobSprite->hp = 100.0f;pobSprite->showHP();pobSprite->autorelease();return pobSprite;}CC_SAFE_DELETE(pobSprite);return NULL;
}void Enemy::run()
{float y0 = this->getPositionY();y0 -= this->speed*1;this->setPositionY(y0);
}
void Enemy::showHP()
{slider = CCControlSlider::create("background.png", "progress.png", "fire.png");slider->setPosition(ccp(this->getContentSize().width/2*this->getScale(),this->getContentSize().height*this->getScale()+5));//slider->setPosition(ccp(0,0));slider->setScale(1.0/this->getScale());slider->setMinimumValue(0);slider->setMaximumValue(this->hp);slider->setValue(this->hp);slider->setTouchEnabled(false);this->addChild(slider,2);//slider->setVisible(false);
}

此时在主场景中可以添加怪物了

	Enemy* enemy = Enemy::create();int j=(int)(5.0*rand()/(RAND_MAX+1.0));enemy->setPosition(p[j]);this->addChild(enemy);DataManage::sharedDataManage()->v_enemy.push_back(enemy);

主场景开启全局定时器以实现怪物的移动

this->scheduleUpdate();

定时器函数的实现

void GameScene::update( float dt )
{//==========enemy run================vector<Enemy*>::iterator it=DataManage::sharedDataManage()->v_enemy.begin();while(it!=DataManage::sharedDataManage()->v_enemy.end()){if((*it)->hp<=0||(*it)->getPositionY()<100){if ((*it)->hp<=0){numKill++;char s[10];sprintf(s,"%d",numKill);pLabel->setString(s);}(*it)->removeFromParentAndCleanup(true);it = DataManage::sharedDataManage()->v_enemy.erase(it);}else{(*it)->run();it++;}}
}

这样，第一只怪物就会随机出现在五条道路中的一条，并向下移动

在定时器中加段代码，过一秒增加一只怪物

	//===========add enemy=======if (time>=60){time=0;Enemy* enemy = Enemy::create();int j=(int)(5.0*rand()/(RAND_MAX+1.0));enemy->setPosition(p[j]);this->addChild(enemy);DataManage::sharedDataManage()->v_enemy.push_back(enemy);}elsetime++;

怪物出现并跑动起来了，就是时候加塔进行攻击了

塔的类的实现Tower.h

#pragma once#include "cocos2d.h"
#include "Box2D/Box2D.h"
#include "SimpleAudioEngine.h"
#include "Enemy.h"
#include "Fire.h"using namespace cocos2d;
class Tower : public cocos2d::CCSprite
{
public:Enemy* target;Fire* bullet;
public:static Tower* create();virtual bool init(void);//========左右移动========void attack2();
};

Tower.cpp

#include "Tower.h"
#include "DataManage.h"
#include "GameScene.h"
USING_NS_CC;Tower* Tower::create()
{Tower *pobSprite = new Tower();if (pobSprite && pobSprite->initWithFile("Tower.png")){pobSprite->target = NULL;pobSprite->autorelease();return pobSprite;}CC_SAFE_DELETE(pobSprite);return NULL;
}bool Tower::init(void)
{return true;
}void Tower::attack2()
{Fire* fire = Fire::create();fire->setPosition(this->getPosition());GameScene::sharedGameScene()->batchNode->addChild(fire,1);DataManage::sharedDataManage()->v_fire.push_back(fire);
}

如上代码，我并没有在塔的类中去攻击，只是增加了子弹的出现，子弹的攻击也在主场景的定时器中去实现，整个游戏将只有开启一个定时器，实现实时刷新并增加怪物，怪物的跑动，塔的攻击

	//==========fire run================vector<Fire*>::iterator it0=DataManage::sharedDataManage()->v_fire.begin();while(it0!=DataManage::sharedDataManage()->v_fire.end()){if((*it0)->getPositionY()>(origin.y+visibleSize.height)){(*it0)->removeFromParentAndCleanup(true);it0 = DataManage::sharedDataManage()->v_fire.erase(it0);}else{int i = (*it0)->run();if (i==1){(*it0)->removeFromParentAndCleanup(true);it0 = DataManage::sharedDataManage()->v_fire.erase(it0);}elseit0++;}}//===========add fire=======if (fireTime>=10){fireTime=0;tower->attack2();}elsefireTime++;

塔是可以左右移动的，开启触摸代理

	//=========开启点击事件============CCDirector* pDirector = CCDirector::sharedDirector();pDirector->getTouchDispatcher()->addTargetedDelegate(this, 0, true);//setTouchEnabled(true);

移动的实现

bool GameScene::ccTouchBegan( CCTouch *pTouch, CCEvent *pEvent )
{CCPoint touchPoint = pTouch->getLocationInView();touchPoint = CCDirector::sharedDirector()->convertToGL( touchPoint );CCRect rc1 = tower->boundingBox();if (rc1.containsPoint(touchPoint)){return true;}return false;
}void GameScene::ccTouchMoved( CCTouch *pTouch, CCEvent *pEvent )
{CCPoint beginPoint=pTouch->getLocationInView(); beginPoint=CCDirector::sharedDirector()->convertToGL(beginPoint);CCPoint endPoint=pTouch->getPreviousLocationInView(); endPoint=CCDirector::sharedDirector()->convertToGL(endPoint); CCPoint offSet =ccpSub(beginPoint,endPoint);CCPoint toPoint=ccpAdd(tower->getPosition(),offSet);CCPoint p = tower->getPosition();p.x = toPoint.x;if (p.x<=origin.x)p.x = origin.x;if (p.x>=(origin.x+visibleSize.width))p.x = (origin.x+visibleSize.width);tower->setPosition(p);}

最后介绍一下一个单例，DataManage.h，保存全局数据，包括怪物，子弹

#pragma once#include "cocos2d.h"
#include <vector>
#include "Enemy.h"
#include "Fire.h"
USING_NS_CC;class DataManage : public cocos2d::CCObject
{
public:vector<Enemy*>v_enemy;vector<Fire*>v_fire;
public:void init();
protected:~DataManage();
public:static DataManage* s_sharedDataManage;static DataManage* sharedDataManage();
};

实现方法

#include "DataManage.h"USING_NS_CC;DataManage* DataManage::s_sharedDataManage = NULL;DataManage* DataManage::sharedDataManage()
{if (!s_sharedDataManage){s_sharedDataManage = new DataManage();s_sharedDataManage->init();}return s_sharedDataManage;
}void DataManage::init()
{v_enemy.clear();v_fire.clear();
}DataManage::~DataManage()
{s_sharedDataManage = NULL;
}

好了，基本到这里，游戏就可以玩起来了，只是一个简易的小游戏，希望大家不要见怪。

本例子源代码附加资源下载地址：http://download.csdn.net/detail/nat_myron/7161837

资源纯属随意使用，如有版权问题，请不要见怪。

如文章有错误之处，欢迎指出，以便改正。