TODO
====

* Items

* Inventory

* Puzzle objects
  - We need more
  - We need to make puzzles out of them
  - How much state do we save to avoid breaking the game?
  - Toggle switch?
  - Laser emitters and detectors? (Maybe later -- seems like a lot of work)

* Game saving
  - still needs to be worked in

* Enemies
  - One isn't enough

* Shooting
  - Follows from enemies

* Breakables
  - Has implications for saving state

* Outstanding art:
  * More aliens (how many?)
  * bullets (alien acid spit and human bullets)
  * Weapons which can be overlaid with the protag's sprite in different positions?
  * Last few protagonist directional images
  * Two of each of these (human and alien design)
    * floor tile
    * door
    * sensor (1 done)
    * indicator (1 done)
    * pushable obstacle (1 done)
    * smashable obstacle?
    * tiles for different surfaces? e.g. damaging (pool of acid), slippery (ice), sticky (alien goop), etc.

* Sounds required:
  * Environmental:
    * Passive:
      * engine
      * backround noises
      * music
      * reactor?
    * Active:
      * doors
      * crates
      * switches
  * Aliens:
    * shooting (1-2 sounds)
    * movement
    * talking (generic and alarmed warbling)
    * death sound
  * Protagonist and other "humans":
    * attacking (shooting and gnawing (as werewolf))
    * movement - human and werewolf
    * talking (generic human mumbling and howling)
    * death sound