When a player instructs a movement of a player character from an input device, a control section obtains a position of the player character during a current frame period. The control section obtains a distance between the position of the player character during the current period and a position of a...http://www.google.com.au/patents/US7170508?utm_source=gb-gplus-sharePatent US7170508 - Character display method in three-dimensional video game
