I'm beginning iOS apps development, and my aim is to make games to launch on App Store. But I want to know if it's possible to program a game on Xcode with OpenGL ES (C++ game logic), integrate it on iOS with ObjC, and with that same game code (OpenGL ES + C++), implement it for Android with Java and to PC.
I have great interest to publish the same game on App Store, Google Play and specially Steam, and intent to build my personal 2D engine/API when I have more experience on graphic programming.
Do you know where can I find material to learn this?