some questions

First of all, I’m super-beginner of OpenGL.

So please help me :’(

  1. How can I make level(stage) system in OpenGL? I know how to draw scene but cannot make level yet

  2. How to check collision between two moving objects? (in 2D space)

  3. and simple method to insert time in the game

thank you

I suggest you write some basic OpenGL before you worry about these things.