Cocos2dx游戏开发笔记21：动手学习《Flappy Bird》（待续）
懒骨头（http://blog.csdn.net/iamlazybone QQ： ）
《Flappy Bird》
关于这个游戏骨头不多说了vcD4KPHA+1rG907+qyrzRp8+wsMmjqMm91a+yu7rDzP2jqTwvcD4KPHA+1f26w8ewts7Ksbzkv7TBy7y4uPZERU1PxMPV4rjwbfK1jwvcD4KPHA+v6q446OhPC9wPgo8cD48YnI+CjwvcD4KPHA+sai7t76zo7o8L3A+CjxwPnZzMjAxMyYjNDM7Y29jb3MyZHgzLjBiZXRhMjxicj4KPC9wPgo8cD7K18/Iz8LU2GFwa6Os1dK1vdfK1LTOxLz+o6yyw7z0vLi49s28xqyjujwvcD4KPHA+PGltZyBzcmM9"/uploadfile/Collfiles/8.jpg" alt="\">
用脚本新建一个空的Cocos2dx项目
新建一个Scene类
#include "cocos2d.h"
#include "Obstacle.h"
class FlyBirdGame :public cocos2d::Layer
static cocos2d::Scene* createScene();
virtual bool init();
CREATE_FUNC(FlyBirdGame);
void initUI();
void gameStart(Object* pSender);
void update(float time);
#include "cocos2d.h"
#include "FlyBirdGame.h"
#include "resource.h";
USING_NS_CC;
Scene* FlyBirdGame::createScene()
auto scene = Scene::create();
auto layer = FlyBirdGame::create();
scene->addChild(layer);
bool FlyBirdGame::init()
if (!Layer::init())
initUI里是一些UI初始化方法：
// win size
auto winSize = Director::getInstance()->getVisibleSize();
// game bg
auto bg = Sprite::create(bird_bg);
bg->setPosition(winSize.width / 2, winSize.height / 2);
bg->setScale(winSize.width / bg->getContentSize().width, winSize.height / bg->getContentSize().height);
this->addChild(bg);
// start btn
auto startBtn = MenuItemImage::create(bird_start_btn, bird_start_btn_pressed, CC_CALLBACK_1(FlyBirdGame::gameStart, this));
auto menu = Menu::create(startBtn, NULL);
menu->setTag(100);
this->addChild(menu);
auto hero = Sprite::create(bird_hero);
hero->setPosition(winSize.width / 5, winSize.height*0.8);
hero->setVisible(false);
hero->setTag(200);
this->addChild(hero);
开始游戏按钮绑定的gameStart方法：
void FlyBirdGame::gameStart(Object* pSender)
auto btn = this->getChildByTag(100);
btn->setVisible(false);
auto hero = this->getChildByTag(200);
Size win = Director::getInstance()->getWinSize();
obstacle->gameStart =
隐藏开始按钮，显示小鸟，水管开始移动
还有更新方法：
scheduleUpdate();
void FlyBirdGame::update(float time)
obstacle->update();
=======================================
水管类：Obstacle.cpp
update方法里判断游戏是游戏是否开始
void Obstacle::update()
if (gameStart == false)
addCount++;
if (addCount == 60)
addOne(0);
addCount = 0;
for (int i = obstacleList->count() - 1; i >= 0; i--)
auto s = (Sprite*)obstacleList->getObjectAtIndex(i);
s->setPositionX(s->getPositionX() - 3);
if (s->getPositionX() getContentSize().width / 2)
obstacleList->removeObjectAtIndex(i);
this->removeChild(s);
}水管类的更新方法里，每60帧（1秒）添加一对水管
并且遍历水管列表
出边界的化销毁
接下来是addOne方法：添加水管方法：
void Obstacle::addOne(int offsetX)
Size size = Director::getInstance()->getWinSize();
auto sprite = Sprite::create(bird_obstacle_up);
Size spriteSize = sprite->getContentSize();
obstacleList->addObject(sprite);
this->addChild(sprite);
auto sprite2 = Sprite::create(bird_obstacle_down);
Size spriteSize2 = sprite->getContentSize();
obstacleList->addObject(sprite2);
this->addChild(sprite2);
// set positon
int maxUpY = size.height + spriteSize.height / 4;
int minUpY = size.height - spriteSize.height / 4;
int y1 = CCRANDOM_0_1()*(maxUpY - minUpY) + minUpY;
int maxDownY = spriteSize.height / 4;
int minDownY = -spriteSize.height / 4;
int y2 = CCRANDOM_0_1()*(maxDownY - minDownY) + minDownY;
if (y1 - y2 - spriteSize.height setPosition(ccp(size.width + spriteSize.width / 2 + offsetX, y1));
sprite2->setPosition(ccp(size.width + spriteSize2.width / 2 + offsetX, y2));
}这段代码比较凌乱，就是找到水管上下位置的范围
然后随机一下，并且保证上下连个水管有个最小的距离
效果如下：
=============================
此时的游戏还没触摸和碰撞逻辑
马上添加：（刚才抽空玩了把魔方：五阶的我只能搞定一个面，虽然有官方规律但是那样好像比的是记忆力）
听说cocos2dx3.0的事件***方式改变了
先在FlyBirdGame.h里声明俩方法：
void onTouchesEnded(const vector& touches, Event* event);
void onTouchesBegan(const vector& touches, Event* event);
在cpp文件的初始化里绑定事件：
auto dispatcher = Director::getInstance()->getEventDispatcher();
auto listener = EventListenerTouchAllAtOnce::create();
listener->onTouchesEnded = CC_CALLBACK_2(FlyBirdGame::onTouchesEnded, this);
listener->onTouchesBegan = CC_CALLBACK_2(FlyBirdGame::onTouchesBegan, this);
dispatcher->addEventListenerWithSceneGraphPriority(listener, this);
在两个事件方法里改变标记位，在小鸟的update方法里根据这个标记位来改变高度
（哲哲喊我休息了，先到这吧，待续。。。）
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