I'm new to cocos2d-x
game development engine
but I don't understand what is the difference between Atlas and sprite-sheet.
are they the same thing or not?
Atlas
is like a generic object if you want to render fast a grouped of images from a single image file like, bitmap labels, spritesheet, multi-image particle, etc.
SpriteSheet
is one of those objects that uses functionality of Atlas
to render its images fast.