我是Cocos2D-X的新手,并且过去几个月一直在努力学习它。我正在尝试从书中创建一个示例游戏 Cocos2d-x游戏开发蓝图,在这个特定的章节中,它解释了如何使用平铺地图创建游戏。
我需要帮助解析TMX文件中的对象列表,我正在尝试将代码从版本2.X更新到版本3.X,因为我遇到了编译错误。我需要将已弃用的CCArray和CCDictionary更改为以下代码中的新cocos :: Vector和Map
void GameWorld::CreateTiledMap()
{
// generate level filename
char buf[128] = {0};
sprintf(buf, "level_%02d.tmx", GameGlobals::level_number_);
// create & add the tiled map
tiled_map_ = CCTMXTiledMap::create(buf);
addChild(tiled_map_);
// get the size of the tiled map
columns_ = (int)tiled_map_->getMapSize().width;
rows_ = (int)tiled_map_->getMapSize().height;
// save a reference to the layer containing all the bricks
bricks_layer_ = tiled_map_->layerNamed("Bricks");
// parse the list of objects
CCTMXObjectGroup* object_group = tiled_map_->objectGroupNamed("Objects");
CCArray* objects = object_group->getObjects();
int num_objects = objects->count();
for(int i = 0; i < num_objects; ++i)
{
CCDictionary* object = (CCDictionary*)(objects->objectAtIndex(i));
// create the Hero at this spawning point
if(strcmp(object->valueForKey("name")->getCString(), "HeroSpawnPoint") == 0)
{
CreateHero(ccp(object->valueForKey("x")->floatValue(), object->valueForKey("y")->floatValue()));
}
// create an Enemy at this spawning point
else if(strcmp(object->valueForKey("name")->getCString(), "EnemySpawnPoint") == 0)
{
CCPoint position = ccp(object->valueForKey("x")->floatValue(), object->valueForKey("y")->floatValue());
CCPoint speed = ccp(object->valueForKey("speed_x")->floatValue(), object->valueForKey("speed_y")->floatValue());
CreateEnemy(position, speed);
}
// create a Platform at this spawning point
else if(strcmp(object->valueForKey("name")->getCString(), "PlatformSpawnPoint") == 0)
{
CCPoint position = ccp(object->valueForKey("x")->floatValue(), object->valueForKey("y")->floatValue());
CCPoint speed = ccp(object->valueForKey("speed_x")->floatValue(), object->valueForKey("speed_y")->floatValue());
CreatePlatform(position, speed);
}
// save the point where the level should complete
else if(strcmp(object->valueForKey("name")->getCString(), "LevelCompletePoint") == 0)
{
level_complete_height_ = object->valueForKey("y")->floatValue();
}
}
}
我自己尝试过转换它,但都没有成功。 我无法将CCArray转换为cocos :: Vector, 但主要是将CCDictionary改为cocos :: Map。有人可以帮助我吗?
答案 0 :(得分:0)
Cocos2d-x有很多测试,非常有用。来自\tests\cpp-tests\Classes\TileMapTest\TileMapTest.cpp
:
auto map = TMXTiledMap::create("TileMaps/test-object-layer.tmx");
addChild(map, -1, kTagTileMap);
CCLOG("----> Iterating over all the group objets");
auto group = map->getObjectGroup("Objects");
auto& objects = group->getObjects();
for (auto& obj : objects)
{
ValueMap& dict = obj.asValueMap();
float x = dict["x"].asFloat();
string name = dict["name"].asString();
}