『cocos2d-x』diamond hunter宝石猎手

哈，山寨又来了。这次用到是pop cap的宝石迷阵资源。写了个简单的玩法，呵呵，其实是因为算法比较简单。还是记录一下。

先下载pop cap的Bejeweled，找到资源。巧妇难为无米之炊，有了资源，就好动手鸟。

我选择了其中的一部分资源，练练手，完全仿出来就算了吧。pop cap的游戏就是好啊，资源不加密的，太方便了，这里我们用到Audio和Graphics里的部分资源。

既然是宝石消除类游戏，当然宝石就是猪脚了。宝石消失，宝石移动，宝石的颜色，这些都需要一堆数据。所以我们这里继承CCSprite创建宝石类CCBlock：

#pragma once
#include "Defines.h"
#include "cocos2d.h"USING_NS_CC;class CCBlock : public cocos2d::CCSprite
{
public:void removeSelf(){this->removeFromParentAndCleanup(true);}public:CC_SYNTHESIZE(bool, _willRemove, WillRemove);CC_SYNTHESIZE(int, _moveStep, MoveStep);CC_SYNTHESIZE(JewelType, _type, Type);CREATE_FUNC(CCBlock);bool init();
};

在cpp中其实就是初始化

#include "CCBlock.h"bool CCBlock::init()
{bool bRet = false;do {int type = rand()%7 + 1;CCString* s = CCString::createWithFormat("Jewel%d.png", type);CC_BREAK_IF(!CCSprite::initWithFile(s->getCString()));this->setWillRemove(false);this->setMoveStep(0);this->setType((JewelType)type);bRet = true;} while (0);return bRet;
}

宝石类CCBlock中其实就包含JewelType宝石的种类，宝石是否要消除_willRemove，宝石要移动的步数_moveStep几个属性，我这里初始化种类是随机的。

然后就是简单的开始游戏场景，用了pop cap的资源和自己在网上搜到的图片PS了一下拼装的，比较简陋。

就一个简单的动态图，和play按钮。

按下play，“go”直接到主场景游戏界面吧。

其实也很简陋，哈哈，凑合看吧。

#include "GameLayer.h"
#include "CCBlock.h"
#include "TitleLayer.h"
#include "SimpleAudioEngine.h"using namespace cocos2d;
using namespace CocosDenshion;CCScene* GameLayer::scene()
{CCScene* scene = NULL;do {scene = CCScene::create();CC_BREAK_IF(!scene);GameLayer *layer = GameLayer::create();CC_BREAK_IF(!layer);scene->addChild(layer);} while (0);return scene;
}bool GameLayer::init()
{bool bRet = false;do {CC_BREAK_IF(! CCLayer::init());this->setTouchEnabled(true);//载入音效SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic("Audio/BGM/classic.mp3");SimpleAudioEngine::sharedEngine()->preloadEffect("Audio/SE/combo.mp3");SimpleAudioEngine::sharedEngine()->preloadEffect("Audio/SE/voice_good.mp3");SimpleAudioEngine::sharedEngine()->preloadEffect("Audio/SE/voice_excellent.mp3");SimpleAudioEngine::sharedEngine()->preloadEffect("Audio/SE/voice_awesome.mp3");SimpleAudioEngine::sharedEngine()->preloadEffect("Audio/SE/voice_spectacular.mp3");SimpleAudioEngine::sharedEngine()->preloadEffect("Audio/SE/voice_extraordinary.mp3");SimpleAudioEngine::sharedEngine()->preloadEffect("Audio/SE/voice_unbelievable.mp3");SimpleAudioEngine::sharedEngine()->preloadEffect("Audio/SE/levelcomplete.mp3");SimpleAudioEngine::sharedEngine()->preloadEffect("Audio/SE/gameover.mp3");SimpleAudioEngine::sharedEngine()->playBackgroundMusic("Audio/BGM/classic.mp3", true);blood = 0.0f;score = 60;level++;levelRatio = 1.8f - level * 0.2f;  loadTexture();initBlocks();bCanTouch = true;scheduleUpdate();schedule(SEL_SCHEDULE(&GameLayer::updateBlood), 1.0f);bRet = true;} while (0);return bRet;
}void GameLayer::update(float dt)
{if(blood >=1.0f){completeSprite->setVisible(true);CCMoveBy *moveBy = CCMoveBy::create(1.0f, ccp(0, 300));CCFadeOut *fadeOut = CCFadeOut::create(1.0f);score = 60;blood = 0.0f;SimpleAudioEngine::sharedEngine()->stopAllEffects();SimpleAudioEngine::sharedEngine()->playEffect("Audio/SE/levelcomplete.mp3");CCCallFunc* completeCallBack = CCCallFunc::create(this, callfunc_selector(GameLayer::restartLevel));completeSprite->runAction(CCSequence::create(CCSpawn::create(moveBy, fadeOut, NULL), completeCallBack, NULL));}
}void GameLayer::initBlocks()  //初始化宝石的tag和位置
{srand(time(NULL));for(int i=0; i<BLOCKHEIGHT; i++)for(int j=0; j<BLOCKWIDTH; j++){CCBlock* block = CCBlock::create();block->setPosition(ccp(313 + 60*j, 104 + 60*i));block->setTag(1000 + (i+1)*8 + j +1);block->retain();this->addChild(block, 10);BlockArr->addObject(block);}
}void GameLayer::loadTexture()  //ui方面的初始化和时间处理
{CCSize winSize = CCDirector::sharedDirector()->getWinSize();CCSprite *bg = CCSprite::create(CCString::createWithFormat("Backgrounds/back_%d.jpg", rand()%19 + 1)->getCString());bg->setPosition(ccp(winSize.width * 0.5f, winSize.height * 0.5f));this->addChild(bg, -11);CCSprite *box = CCSprite::create("UI/box.png");box->setPosition(ccp(winSize.width * 0.5f + 120, winSize.height * 0.5f));this->addChild(box, -9);hpSprite = CCSprite::create("UI/bottombar_blue.png");  hpSprite->setAnchorPoint(ccp(0, 0));hpSprite->setPosition(ccp(309, 49));hpSprite->setScaleX(blood);this->addChild(hpSprite, -10);BlockArr = CCArray::create();BlockArr->retain();completeSprite = CCSprite::create("UI/levelcomplete.png");completeSprite->setPosition(ccp(523, 200));this->addChild(completeSprite, 3);completeSprite->setVisible(false);CCSprite* menuUI = CCSprite::create("UI/window_score.png");menuUI->setPosition(ccp(120, 438));this->addChild(menuUI, -1);labelAtlas = CCLabelAtlas::create("60", "fps_images.png", 12, 32, '.');labelAtlas->setPosition(ccp(105, 500));this->addChild(labelAtlas, 1);labelLevel = CCLabelAtlas::create("1", "fps_images.png", 12, 32, '.');labelLevel->setPosition(ccp(113, 468));labelLevel->setString(CCString::createWithFormat("%d", level)->getCString());this->addChild(labelLevel, 1);CCSprite* menuBox = CCSprite::create("UI/menu_box_added.png");menuBox->setPosition(ccp(120, 130));this->addChild(menuBox, -2);CCMenuItemImage *menuItem = CCMenuItemImage::create("UI/menu_d.png","UI/menu_d.png",this,menu_selector(GameLayer::menuCallBack));CCMenu *menu = CCMenu::createWithItem(menuItem);menu->setPosition(ccp(120, 130));this->addChild(menu, -1);
}void GameLayer::ccTouchesBegan(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent){}void GameLayer::ccTouchesEnded(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent){//每次点击都判断是那个宝石被击中，然后做updateState和updateMoveStep的操作if(bCanTouch){CCTouch* pTouch = (CCTouch*)pTouches->anyObject();CCPoint pos = CCDirector::sharedDirector()->convertToGL(pTouch->getLocationInView());int x = (pos.x - 283) / 60 + 1;int y = (pos.y - 74) / 60 + 1;if(x >= 1 && y >= 1 && x <= 8 && y <= 8){bCanTouch = false;CCBlock *block = getBlockByTag(1000 + y*8 + x);if(block){JewelType type = block->getType();removeTotal = 0;updateState(x, y, type);updateMoveStep();}}}
}void GameLayer::updateState(int x, int y, JewelType type)  //递归遍历周边相同颜色宝石，找到要消失的宝石
{if(x<=0 || x>=9 || y<=0 || y>=9)return;CCBlock *block = getBlockByTag(1000+8*y+x);if(block->getWillRemove())return;if(block && block->getType() == type){block->setWillRemove(true);removeTotal ++;updateState(x-1, y, type);updateState(x+1, y, type);updateState(x, y-1, type);updateState(x, y+1, type);}
}void GameLayer::updateMoveStep()  //根据要消失的宝石计算每个宝石要移动的步数step
{for(int i=1; i<9; i++){int step = 0;for(int j=1; j<9; j++){CCBlock *block = getBlockByTag(1000+j*8+i);CC_BREAK_IF(!block);if(block->getWillRemove()){step++;}block->setMoveStep(step);}}int newStep[8] = {0}; //需新建的个数for(int i=1065; i<1073; i++){CCBlock *block = getBlockByTag(i);CC_BREAK_IF(!block);newStep[i-1065] = block->getMoveStep();}for(int i=1009; i<1073; i++){CCBlock* block = getBlockByTag(i);if(block->getWillRemove()){CCScaleTo* scaleTo1 = CCScaleTo::create(0.04f, 1.1f);CCScaleTo* scaleTo2 = CCScaleTo::create(0.12f, 0.5f);block->runAction(CCSequence::create(scaleTo1, scaleTo2, CCCallFuncN::create(this, callfuncN_selector(GameLayer::deleteBlock)),NULL));}else if(block->getMoveStep())block->setTag(block->getTag()-block->getMoveStep()*8);}SimpleAudioEngine::sharedEngine()->playEffect("Audio/SE/combo.mp3");if(removeTotal >= 4 && removeTotal <5)SimpleAudioEngine::sharedEngine()->playEffect("Audio/SE/voice_good.mp3");else if(removeTotal >= 5 && removeTotal <6)SimpleAudioEngine::sharedEngine()->playEffect("Audio/SE/voice_excellent.mp3");else if(removeTotal >= 6 && removeTotal <7)SimpleAudioEngine::sharedEngine()->playEffect("Audio/SE/voice_awesome.mp3");else if(removeTotal >= 7 && removeTotal <8)SimpleAudioEngine::sharedEngine()->playEffect("Audio/SE/voice_spectacular.mp3");else if(removeTotal >= 8 && removeTotal <9)SimpleAudioEngine::sharedEngine()->playEffect("Audio/SE/voice_extraordinary.mp3");else if(removeTotal >= 9)SimpleAudioEngine::sharedEngine()->playEffect("Audio/SE/voice_unbelievable.mp3");//分数变化switch(removeTotal){case 1:blood -= 0.03f;break;case 2:blood += 0.01f * levelRatio;break;case 3:blood += 0.02f * levelRatio;break;case 4:createMsg(1);blood += 0.03f * levelRatio;break;case 5:createMsg(2);blood += 0.04f * levelRatio;break;case 6:createMsg(3);blood += 0.05f * levelRatio;break;case 7:createMsg(4);blood += 0.06f * levelRatio;break;case 8:createMsg(5);blood += 0.07f * levelRatio;break;case 9:createMsg(6);blood += 0.08f * levelRatio;break;default:createMsg(6);blood += 0.09f * levelRatio;break;}if(blood < 0)blood = 0;hpSprite->setScaleX(blood);for(int i=0; i<8; i++)  //生成新的宝石类，并移动到正确的位置{for(int j=newStep[i]; j>0; j--){CCBlock* block = CCBlock::create();block->setPosition(ccp(313 + 60*i, 104 + 420 + 60*j));block->setMoveStep(newStep[i]);block->setWillRemove(false);block->retain();this->addChild(block, 10);BlockArr->addObject(block);}}hpSprite->setScaleX(blood);CCString* scoreStr = CCString::createWithFormat("%d", score);labelAtlas->setString(scoreStr->getCString());CCObject* pObj;int maxStep = 0;CCARRAY_FOREACH(BlockArr, pObj){CCBlock* block = (CCBlock*)pObj;if(int step = block->getMoveStep()){if(step > maxStep)maxStep = step;CCDelayTime* delayTime = CCDelayTime::create(0.2f);CCMoveBy* moveBy = CCMoveBy::create(0.1f * step, ccp(0, -step * 60));block->runAction(CCSequence::create(delayTime, moveBy, NULL));}}this->runAction(CCSequence::create(CCDelayTime::create(maxStep * 0.1f + 0.21f),CCCallFunc::create(this, callfunc_selector(GameLayer::touchCallBack)), NULL));
}void GameLayer::touchCallBack()  //每次消除后，重新设定宝石的tag等状态
{CCObject* pObj;    CCARRAY_FOREACH(BlockArr, pObj){CCBlock* block = (CCBlock*)pObj;CCPoint pos = block->getPosition();    int x = (pos.x - 283) / 60 + 1;int y = (pos.y - 74) / 60 + 1;block->setMoveStep(0);block->setTag(1000 + y*8 + x);block->setWillRemove(false);}bCanTouch = true;
}void GameLayer::menuCallBack(CCObject *pObj)
{CCDirector::sharedDirector()->replaceScene(CCTransitionFade::create(1.0f, TitleLayer::scene()));level = 0;
}void GameLayer::updateBlood(float dt)
{score -= 1;if(score <=0){score = 0;if(blood < 1.0f){this->unschedule(schedule_selector(GameLayer::updateBlood));level = 0;SimpleAudioEngine::sharedEngine()->stopAllEffects();SimpleAudioEngine::sharedEngine()->playEffect("Audio/SE/gameover.mp3");CCSprite *gameOver = CCSprite::create("UI/gameover.png");gameOver->setPosition(ccp(523, 200));this->addChild(gameOver, 1);CCMoveBy *moveBy = CCMoveBy::create(1.0f, ccp(0, 300));CCFadeOut *fadeOut = CCFadeOut::create(1.0f);CCSpawn *spn = CCSpawn::create(moveBy, fadeOut, NULL);CCDelayTime* delayTime = CCDelayTime::create(0.2f);CCCallFunc* callBack = CCCallFunc::create(this, callfunc_selector(GameLayer::restartLevel));gameOver->runAction(CCSequence::create(spn, delayTime, callBack, NULL));         }}labelAtlas->setString(CCString::createWithFormat("%d", score)->getCString());
}void GameLayer::restartLevel()
{if(level == 0)CCDirector::sharedDirector()->replaceScene(CCTransitionFade::create(1.0f, TitleLayer::scene()));elseCCDirector::sharedDirector()->replaceScene(CCTransitionFade::create(1.0f, GameLayer::scene()));
}void GameLayer::createMsg(int msg)  //good，excellent等信息的处理。
{CCSprite* msgSprite = CCSprite::create();switch(msg){case 1:msgSprite = CCSprite::create("Complements/good.png");break;case 2:msgSprite = CCSprite::create("Complements/excellent.png");break;case 3:msgSprite = CCSprite::create("Complements/awesome.png");break;case 4:msgSprite = CCSprite::create("Complements/spectacular.png");break;case 5:msgSprite = CCSprite::create("Complements/extraordinary.png");break;case 6:msgSprite = CCSprite::create("Complements/unbelievable.png");break;default:break;}msgSprite->setPosition(ccp(120, 200));msgSprite->setScale(0.2f);this->addChild(msgSprite, 1);CCMoveBy *moveBy = CCMoveBy::create(1.0f, ccp(0, 200));CCFadeOut *fadeOut = CCFadeOut::create(1.0f);CCSpawn *spn = CCSpawn::create(moveBy, fadeOut, NULL);msgSprite->runAction(CCSequence::create(spn, CCCallFuncN::create(this, callfuncN_selector(GameLayer::deleteSelf)),NULL));}void GameLayer::deleteSelf(CCNode* node)
{CCSprite* s = (CCSprite*)node;s->removeFromParentAndCleanup(true);
}void GameLayer::deleteBlock(CCNode* node)
{CCSprite* s = (CCSprite*)node;s->removeFromParentAndCleanup(true);CCBlock* block = (CCBlock*)node;BlockArr->removeObject(block, true);
}CCBlock* GameLayer::getBlockByTag(int tag)
{if(BlockArr->count()==0)return NULL;CCObject *pObj;CCARRAY_FOREACH(BlockArr, pObj){CCBlock* block = (CCBlock*)pObj;if(block->getTag() == tag)return block;}return NULL;
}

注释写的不怎多。说说我写的大致思路：

1.首先初始化宝石的位置和tag，当然tag和位置有这密切的位置，是对应的，在知道位置的情况是可以计算出tag，反之亦然。

2.在点击屏幕后，根据位置判断是否有宝石被点击到。如果点击到，先得到宝石的种类，其实就颜色了，然后遍历他周边4个是否是一样的颜色，如果是一样的，那么改变他的_willRemove为true，即是准备删除掉，在遍历他周边4个宝石，这里我用的是递归函数，见updateState函数。

3.在知道哪些宝石是要删除后，我们计算出其他宝石要掉落的步数step，和上方要重新要生成新宝石的数量，在函数updateMoveStep中有详细的方法。

4.然后让要删除的宝石做消失的动作，并从主场景中remove，并且从CCArray中remove。接着宝石生成，让他们根据要移动的step做移动的action。

5.完成这些后，我们在根据宝石的位置在重新初始化下一下他们的属性，主要是重新设定tag。

至于时间和血量这个就比较简单了，这个根据自己的喜好设定了，哈哈，你可以搞的很变态虐待自己哦。

这是我的方法，主要根据tag来做运算，如果哪位大神有更好的方法，希望能指点一下，个人还是觉得自己这个方法有点笨。

demo下载地址。

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