ABSTRACT
The state of a game world is the combination of the states of all the objects within it: the state of the player (his or her location, orientation, health, inventory, etc.), the states of all NPCs (nonplayer characters-their locations, emotional states, etc.), the states of inanimate objects (which doors are locked, which buildings have collapsed, etc.), and so on. Games usually simulate a game world in order to track the evolution of its state, perhaps using level-of-detail approximations for unobserved elements of game state to reduce the complexity of doing so.
