Impulsed Based Movement

A semi-simultaneous movement mechanic that emulates player pieces moving at different speeds. A turn of movement is divided in to several small segments called impulses. A player's piece then moves a single step during each of some fraction of the impulses in the turn corresponding to that fraction of the maximum allowable speed the piece is assigned to move that turn and does not move at all in the remaining impulses. The impulses on which a piece moves are typically spread over the turn as evenly as possible. Example commercial games using Impulse Based Movement are: "Star Fleet Battles" and "Car Wars".