* Doom - Added reward_threshold and timestep_limit for all environments
* Doom - Returning all available game variables
* Doom - Moved _seed to doom_env to avoid repetition in every environment
* Doom - Added ALT_ATTACK and made all action_space equivalent (same controls between environments).
* Doom - Actions can either be a short list of allowed actions or the full list of 41 commands
* Doom - Returning black observation space on error or is_finished, rather than empty list (which was triggering an error)
* Doom - HighLow.sample() returns the small list.
* Doom - Updated difficulty for some missions
* Doom - Fixed inconsistency between controls.md and deathmatch.cfg
* Doom - Issue #168 - Remove sleep statement from DoomEnv render
* Doom - Only using full action space (43 keys)
- Added 'normal', 'fast' and 'human' mode
- Set non-deterministic to True
- Set video.frames_per_second to 35
- Properly returning game variables
* Replaced warnings.warn by logger.warn
* Doom - Added NUM_ACTIONS and action_idx instead of x
* Doom - Added NUM_ACTIONS and action_idx instead of x
* Doom - reset() only calls game.new_episode() after first call
* Doom is now deterministic
* Doom - Partial fix for issue #167 - DoomDeathmatch environment crashes sporadically
* Doom - Standardized envs, simplified _reset
* Doom - Removed temporary fix for issue #167
* Doom - Added scoreboard summary and description
