(local util (require :lib.util))
(local {: vec* : vec+ : dir-from-key} (util.require :game.helpers))
(local rules (require :game.rules))
(local dim (require :game.dim))

(local entity {})
(fn entity.move [pos vel dt]
  (vec+ pos (vec* vel dt)))

(fn entity.direct [keymap speed]
  (vec* (dir-from-key keymap) speed))

entity