A sprite structure can have whatever you desire. Its not limited to just whats proper. Its anything you want! Thats the beauty of programming. If its an RPG it can have Strength, Agility, Intellect, Dexterity, Spirit, Health, Mana, etc etc. If its a platformer, fighting game, or even an rpg (which ever genre has animation), it can have animation states such as standing, walking, running, shooting, falling, dieing, etc. The only limit is your imagination.