cocos2d小游戏---忍者吃西瓜

声明：本代码是跟着别人的教程走的，贴出来以便自己复习用，其他没有什么大用。

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"

class HelloWorld : public cocos2d::CCLayer
{
public:
	~ HelloWorld();

    // Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
    virtual bool init();  

    // there's no 'id' in cpp, so we recommend returning the class instance pointer
    static cocos2d::CCScene* scene();

    // a selector callback
    void menuCloseCallback(CCObject* pSender);

	//地图变量
	cocos2d::CCTMXTiledMap *tileMap;

	//忍者变量
	cocos2d::CCSprite *nijia;

	//障碍物层
	cocos2d::CCTMXLayer *flagLayer;

	//前景层
	cocos2d::CCTMXLayer *forgroundLayer;

	//积分标签
	cocos2d::CCLabelTTF *scoreBord;
	int _score;

	//模拟小人移动
	void MapMoveForward(cocos2d::CCPoint ForwardPos);
    
    // implement the "static node()" method manually
    CREATE_FUNC(HelloWorld);

	//触摸开始
	bool ccTouchBegan(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);

	//触摸中
	void ccTouchMoved(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);

	//触摸结束
	void ccTouchEnded(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);

	//移动视图
	void MoveView(cocos2d::CCPoint touchPos);

	//坐标转换
	cocos2d::CCPoint cocosCoord2TiledMapCoord(cocos2d::CCPoint cocosPoint);

	//是不是障碍物
	bool IsObstacles(cocos2d::CCPoint curPoint);

	//是不是西瓜
	bool IsXiGua(cocos2d::CCPoint curPoint);
};

#endif // __HELLOWORLD_SCENE_H__

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

USING_NS_CC;

#define WIN_WIDTH (CCDirector::sharedDirector()->getVisibleSize().width)
#define WIN_HEIGHT (CCDirector::sharedDirector()->getVisibleSize().height)
#define MAP_WIDTH (tileMap->getMapSize().width * tileMap->getTileSize().width)
#define MAP_HEIGHT (tileMap->getMapSize().height * tileMap->getTileSize().height)

CCScene* HelloWorld::scene()
{
    // 'scene' is an autorelease object
    CCScene *scene = CCScene::create();
    
    // 'layer' is an autorelease object
    HelloWorld *layer = HelloWorld::create();

    // add layer as a child to scene
    scene->addChild(layer);

    // return the scene
    return scene;
}

void HelloWorld::menuCloseCallback(CCObject* pSender)
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT) || (CC_TARGET_PLATFORM == CC_PLATFORM_WP8)
	CCMessageBox("You pressed the close button. Windows Store Apps do not implement a close button.","Alert");
#else
	CCDirector::sharedDirector()->end();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
	exit(0);
#endif
#endif
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
    //////////////////////////////
    // 1. super init first
    if ( !CCLayer::init() )
    {
        return false;
    }

	//创建资源
	tileMap = CCTMXTiledMap::create("MyTileMap.tmx");

	//加载图层
	CCTMXLayer * backLayer = tileMap->layerNamed("BackMap");
	CCAssert(backLayer,"can not find layer BackMap");

	//加载地图
	this->addChild(tileMap);

	//前景层
	forgroundLayer = tileMap->layerNamed("forground");

	//获取障碍物层
	flagLayer = tileMap->layerNamed("flag_layer");
	flagLayer->setVisible(false);

	//找到忍者位置
	CCTMXObjectGroup *og = tileMap->objectGroupNamed("player");
	CCDictionary * posInfoDict = og->objectNamed("nijiaBirthPoint");
	int x = posInfoDict->valueForKey("x")->intValue();
	int y = posInfoDict->valueForKey("y")->intValue();

	//创建忍者
	nijia = CCSprite::create("Player.png");
	nijia->setAnchorPoint(ccp(0.5,0.5));
	nijia->setPosition(ccp(x,y));
	tileMap->addChild(nijia);

	//触摸事件触发器
	CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this, 0, true);

	//创建积分标签
	scoreBord = CCLabelTTF::create("score:0", "Arial", 30);
	scoreBord->setPosition(ccp(WIN_WIDTH-60,30));
	this->addChild(scoreBord);
	_score = 0;

	//播放背景音乐
	CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic("TileMap.wav",true);

    return true;
}

//析构函数
HelloWorld::~HelloWorld()
{
}

//模拟小人移动
void HelloWorld::MapMoveForward(cocos2d::CCPoint ForwardPos)
{
	//移动地图
	CCPoint srcPos = tileMap->getPosition();
	CCPoint newMapPos = srcPos + ForwardPos;

	//防止坐标超出边界
	newMapPos.x = newMapPos.x>0 ? 0 : newMapPos.x;
	newMapPos.x = newMapPos.x<WIN_WIDTH - MAP_WIDTH ? WIN_WIDTH - MAP_WIDTH : newMapPos.x;
	newMapPos.y = newMapPos.y>0 ? 0 : newMapPos.y;
	newMapPos.y = newMapPos.y<WIN_HEIGHT - MAP_HEIGHT ? WIN_HEIGHT - MAP_HEIGHT : newMapPos.y;
	tileMap->setPosition(newMapPos);
}

//触摸开始
bool HelloWorld::ccTouchBegan(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent)
{
	return true;
}

//触摸中
void HelloWorld::ccTouchMoved(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent)
{
}

//触摸结束
void HelloWorld::ccTouchEnded(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent)
{
	//触摸坐标
	CCPoint touchPos = pTouch->getLocation();

	//移动视图
	MoveView(touchPos);
}

//移动视图
void HelloWorld::MoveView(cocos2d::CCPoint touchPos)
{
	//检验忍者坐标
	CCPoint ninAbsPoint = nijia->convertToWorldSpace(ccp(0,0));

	//判断忍者移动方向
	if (abs(touchPos.x - ninAbsPoint.x) > abs(touchPos.y - ninAbsPoint.y))//横向移动
	{
		if (touchPos.x - ninAbsPoint.x > 0)
		{
			//障碍物检测
			if (!IsObstacles(ccp(nijia->getPositionX() + tileMap->getTileSize().width, nijia->getPositionY())))
			{
				//检测西瓜
				if (IsXiGua(ccp(nijia->getPositionX() + tileMap->getTileSize().width, nijia->getPositionY())))
				{
					//清除图层
					forgroundLayer->removeTileAt(cocosCoord2TiledMapCoord(ccp(nijia->getPositionX() + tileMap->getTileSize().width, nijia->getPositionY())));
					flagLayer->removeTileAt(cocosCoord2TiledMapCoord(ccp(nijia->getPositionX() + tileMap->getTileSize().width, nijia->getPositionY())));
				
					//分值变化
					_score += 1;
					char scoreStr[20];
					sprintf(scoreStr, "score : %d", _score);
					scoreBord->setString(scoreStr);

					//播放吃西瓜音乐
					CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect("pickup.wav");
				}

				//忍者向右移动
				nijia->setPosition(ccp(nijia->getPositionX() + tileMap->getTileSize().width, nijia->getPositionY()));
				if (ninAbsPoint.x >= WIN_WIDTH/2)//地图向左移动
				{
					MapMoveForward(ccp(- tileMap->getTileSize().width, 0));
				}

				//播放移动音乐
				CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect("move.wav");
			}
		}
		else if(touchPos.x - ninAbsPoint.x < 0)
		{
			//障碍物检测
			if (!IsObstacles(ccp(nijia->getPositionX() - tileMap->getTileSize().width, nijia->getPositionY())))
			{
				//检测西瓜
				if (IsXiGua(ccp(nijia->getPositionX() - tileMap->getTileSize().width, nijia->getPositionY())))
				{
					//清除图层
					forgroundLayer->removeTileAt(cocosCoord2TiledMapCoord(ccp(nijia->getPositionX() - tileMap->getTileSize().width, nijia->getPositionY())));
					flagLayer->removeTileAt(cocosCoord2TiledMapCoord(ccp(nijia->getPositionX() - tileMap->getTileSize().width, nijia->getPositionY())));

					//分值变化
					_score += 1;
					char scoreStr[20];
					sprintf(scoreStr, "score : %d", _score);
					scoreBord->setString(scoreStr);

					//播放吃西瓜音乐
					CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect("pickup.wav");
				}

				//忍者移动
				nijia->setPosition(ccp(nijia->getPositionX() - tileMap->getTileSize().width, nijia->getPositionY()));
				if (ninAbsPoint.x <= WIN_WIDTH/2 )//地图向右移动
				{
					MapMoveForward(ccp(tileMap->getTileSize().width, 0));
				}

				//播放移动音乐
				CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect("move.wav");
			}
		}
	}
	else//纵向移动
	{
		if (touchPos.y - ninAbsPoint.y > 0)
		{
			//障碍物检测
			if (!IsObstacles(ccp(nijia->getPositionX(), nijia->getPositionY() + tileMap->getTileSize().width)))
			{
				//检测西瓜
				if (IsXiGua(ccp(nijia->getPositionX(), nijia->getPositionY() + tileMap->getTileSize().width)))
				{
					//清除图层
					forgroundLayer->removeTileAt(cocosCoord2TiledMapCoord(ccp(nijia->getPositionX(), nijia->getPositionY() + tileMap->getTileSize().width)));
					flagLayer->removeTileAt(cocosCoord2TiledMapCoord(ccp(nijia->getPositionX(), nijia->getPositionY() + tileMap->getTileSize().width)));

					//分值变化
					_score += 1;
					char scoreStr[20];
					sprintf(scoreStr, "score : %d", _score);
					scoreBord->setString(scoreStr);

					//播放吃西瓜音乐
					CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect("pickup.wav");
				}

				//忍者移动
				nijia->setPosition(ccp(nijia->getPositionX(), nijia->getPositionY() + tileMap->getTileSize().width));
				if (ninAbsPoint.y >= WIN_HEIGHT/2)//地图向下移动
				{
					MapMoveForward(ccp(0, -tileMap->getTileSize().height));
				}
			}
		}
		else if(touchPos.y - ninAbsPoint.y < 0)
		{
			//障碍物检测
			if (!IsObstacles(ccp(nijia->getPositionX(), nijia->getPositionY() - tileMap->getTileSize().width)))
			{
				//检测西瓜
				if (IsXiGua(ccp(nijia->getPositionX(), nijia->getPositionY() - tileMap->getTileSize().width)))
				{
					//清除图层
					forgroundLayer->removeTileAt(cocosCoord2TiledMapCoord(ccp(nijia->getPositionX(), nijia->getPositionY() - tileMap->getTileSize().width)));
					flagLayer->removeTileAt(cocosCoord2TiledMapCoord(ccp(nijia->getPositionX(), nijia->getPositionY() - tileMap->getTileSize().width)));

					//分值变化
					_score += 1;
					char scoreStr[20];
					sprintf(scoreStr, "score : %d", _score);
					scoreBord->setString(scoreStr);

					//播放吃西瓜音乐
					CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect("pickup.wav");
				}

				//忍者移动
				nijia->setPosition(ccp(nijia->getPositionX(), nijia->getPositionY() - tileMap->getTileSize().width));
				if (ninAbsPoint.y <= WIN_HEIGHT/2)//地图向上移动
				{
					MapMoveForward(ccp(0, tileMap->getTileSize().height));
				}

				//播放移动音乐
				CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect("move.wav");
			}
		}
	}
}

//坐标转换
cocos2d::CCPoint HelloWorld::cocosCoord2TiledMapCoord(cocos2d::CCPoint cocosPoint)
{
	CCPoint tiledMapPoint;
	tiledMapPoint.x = (int)(cocosPoint.x / tileMap->getTileSize().width);
	tiledMapPoint.y = (int)((MAP_HEIGHT - cocosPoint.y) / tileMap->getTileSize().height);
	return tiledMapPoint;
}

//是不是障碍物
bool HelloWorld::IsObstacles(cocos2d::CCPoint curPoint)
{
	bool isObstacles = false;

	//坐标转换
	CCPoint tileMapPoint = cocosCoord2TiledMapCoord(curPoint);

	//瓦片 I D
	int tiledID = flagLayer->tileGIDAt(tileMapPoint);
	if (tiledID==0) return false;

	//获取瓦片所有属性
	CCDictionary *tileProperty = tileMap->propertiesForGID(tiledID);
	const CCString *collideStr = tileProperty->valueForKey("collide");

	//检测属性是否为true
	if (collideStr->compare("true") == 0)
	{
		isObstacles = true;
	}
	return isObstacles;
}

//是不是西瓜
bool HelloWorld::IsXiGua(cocos2d::CCPoint curPoint)
{
	bool isXiGua = false;

	//坐标转换
	CCPoint tileMapPoint = cocosCoord2TiledMapCoord(curPoint);

	//瓦片 I D
	int tiledID = flagLayer->tileGIDAt(tileMapPoint);
	if (tiledID==0) return false;

	//获取瓦片所有属性
	CCDictionary *tileProperty = tileMap->propertiesForGID(tiledID);
	const CCString *fruitStr = tileProperty->valueForKey("fruit");

	//检测属性是否为true
	if (fruitStr->compare("xigua") == 0)
	{
		isXiGua = true;
	}
	return isXiGua;
}