On the Level – Eskimo - Cocos2d-x by Example Beginner's Guide - page 339

for ( auto platformData : platforms){
ValueMap data = platformData.asValueMap();
platform->initPlatform ( data.at("width").asInt()
* TILE,
data.at("angle").asFloat(),
Vec2(data.at("x").asFloat()
* TILE,
data.at("y").asFloat() *
TILE));
}
for (int i = 0; i < switches.size(); i++) {
auto gswitch = _gSwitchPool.at(i);
ValueMap data = switches.at(i).asValueMap();
gswitch->initGSwitch(data.at("gravity").asInt(),
Vec2(data.at("x").asFloat() *
TILE,
data.at("y").asFloat() * TILE));
}