[游戏开发]cocos2d-x 瓦片地图

一、加载瓦片地图以及确定对象精灵添加监听

/* 瓦片地图 */
//一、在代码中使用地图
//1 创建地图对象
map = TMXTiledMap::create("Map\\map1.tmx");
//2 添加节点
this->addChild(map);
//3 设置位置
map->setPosition(0, 0);

// 二、根据地图对象层添加精灵
player = Sprite::create("Map\\player.png");
this->addChild(player, 2);
//目的:获得地图对应的对象层的具体对象的位置信息
//思路:
//1.添加对象时:对象->对象层->地图
//2.获取信息:地图->对象层->对象->位置信息/其他属性
//代码步骤:
TMXObjectGroup* objLayer = map->getObjectGroup("PlayerObject");
ValueMap obj = objLayer->getObject("hero");
float x = obj["x"].asFloat();
float y = obj["y"].asFloat();
player->setPosition(x, y);
player->setAnchorPoint(Size::ZERO);

//触摸监听
EventListenerTouchOneByOne* myTouchOneByOne = EventListenerTouchOneByOne::create();
myTouchOneByOne->onTouchBegan = CC_CALLBACK_2(Scene_14::touchBegan, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(myTouchOneByOne, this);

二、控制角色在地图中移动

bool  Scene_14::touchBegan(Touch* touch, Event* event)
{ 
	//获取GID
	// 1 获取玩家下一次移动坐标
	Vec2 playerPos = player->getPosition();
	Vec2 nextPlayer(playerPos.x + 70, playerPos.y);
	// 2 坐标==>图片索引
	Point playerPoint = Point((int)nextPlayer.x / 70, 9 - (int)nextPlayer.y / 70);//要用总的长度减去当前y长度
	// 3 获取当前图层
	TMXLayer *pWall = map->layerNamed("wall");
	// 4 当前图层+图片索引 ==> GID值
	int id = pWall->tileGIDAt(playerPoint);
	if (58 != id)
		player->runAction(MoveBy::create(1.0f, Vec2(70, 0)));
	return true;
}