https://github.com/clawoo/TileBasedGameCocos2D-x

cocos2d-xのチュートリアルの足りない部分

//
//  HelloWorldScene.cpp
//  TileBasedGame
//
//  Created by Clawoo on 8/17/11.
//  Copyright __MyCompanyName__ 2011. All rights reserved.
//

#include "HelloWorldScene.h"

USING_NS_CC;

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

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

    // return the scene
    return scene;
}

HelloWorld::~HelloWorld()
{
    CC_SAFE_RELEASE_NULL(_tileMap);
    CC_SAFE_RELEASE_NULL(_background);
    CC_SAFE_RELEASE_NULL(_player);
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
    CCLOG("init");

    if ( !CCLayer::init() )
    {
        return false;
    }

    // Inside init method
    // cpp with cocos2d-x
    this->setIsTouchEnabled(true);
    
    _tileMap = CCTMXTiledMap::tiledMapWithTMXFile("TileMap.tmx");
    _tileMap->retain();
    
    _background = _tileMap->layerNamed("Background");
    _background->retain();
    
    CCTMXObjectGroup *objects = _tileMap->objectGroupNamed("Objects");
    CCAssert(objects != NULL, "'Objects' object group not found");
    
    CCStringToStringDictionary *spawnPoint = objects->objectNamed("SpawnPoint");
    CCAssert(spawnPoint != NULL, "SpawnPoint object not found");
    int x = spawnPoint->objectForKey("x")->toInt();
    int y = spawnPoint->objectForKey("y")->toInt();

    _player = CCSprite::spriteWithFile("Player.png");
    _player->retain();
    
    _player->setPosition(ccp (x, y));
    
    this->addChild(_tileMap);
    this->addChild(_player);
    
    this->setViewpointCenter(_player->getPosition());
    
    
    // これをつけて後ろ側にする
//    _tileMap->setVertexZ(-1);
    
    return true;
}

void HelloWorld::setViewpointCenter(CCPoint position)
{
    CCLOG("setViewpointCenter");
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();
    
    int x = MAX(position.x, winSize.width / 2);
    int y = MAX(position.y, winSize.height / 2);
    
    x = MIN(x, (_tileMap->getMapSize().width * _tileMap->getTileSize().width) - winSize.width/2);
    x = MIN(x, (_tileMap->getMapSize().height * _tileMap->getTileSize().height) - winSize.height/2);
    
    CCPoint actualPosition = ccp(x, y);
    CCPoint centerOfView = ccp(winSize.width/2, winSize.height/2);
    CCPoint viewPoint = ccpSub(centerOfView, actualPosition);
    
    this->setPosition(viewPoint);
}

// 追加
void HelloWorld::registerWithTouchDispatcher()
{
    // 2.0で非推奨
    CCTouchDispatcher::sharedDispatcher()->addTargetedDelegate(this, 0, true);
    //CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this, 0, true);
}

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

void HelloWorld::setPlayerPosition(cocos2d::CCPoint position)
{
    _player->setPosition(position);
}

void HelloWorld::ccTouchEnded(cocos2d::CCTouch *touch, CCEvent *event)
{
    
    CCPoint touchLocation = touch->locationInView(touch->view());
    touchLocation = CCDirector::sharedDirector()->convertToGL(touchLocation);
    touchLocation = this->convertToNodeSpace(touchLocation);
    
    CCPoint playerPos = _player->getPosition();
    CCPoint diff = ccpSub(touchLocation, playerPos);
    if (::abs(diff.x) > ::abs(diff.y)) {
        if (diff.x > 0) {
            playerPos.x += _tileMap->getTileSize().width;
        } else {
            playerPos.x -= _tileMap->getTileSize().width; 
        }    
    } else {
        if (diff.y > 0) {
            playerPos.y += _tileMap->getTileSize().height;
        } else {
            playerPos.y -= _tileMap->getTileSize().height;
        }
    }
    
    if (playerPos.x <= (_tileMap->getMapSize().width * _tileMap->getTileSize().width) &&
        playerPos.y <= (_tileMap->getMapSize().height * _tileMap->getTileSize().height) &&
        playerPos.y >= 0 &&
        playerPos.x >= 0 ) 
    {
        this->setPlayerPosition(playerPos);
    }
    
    this->setViewpointCenter(_player->getPosition());
}