I am new in game programming. I am trying to draw wall like in example. EXAMPLE
I am not getting how will i do this. Is any matrix logic i have to implement or i have to use full image.
You need to back up a long way before doing this.
gdx isn't the simplest engine to start out with, perhaps try your hand with andEngine first (google will help you find it). It sacrifices performance and flexibility for developer simplicity, and will get you going sooner.
hey i'm not the programmer in our team, but you can certainly do both! me and a friend of mine are currently developing a litte 2D side scroller and there we used full images and not tiled maps (at least that's what i think you meant with matrix)!
but keep in mind these full graphics eat up your resources like crazy! a few days ago i also saw that someone posted a level editor for libgdx, maybe that's also worth to check out!
if you like to learn more about libgdx look at the forum on badlogicgames.com, it's cool cause you can post your own stuff there and get feedback for your games!
cheers sebastian, xsheetgames