Changes in version 0.1.0                        

  - Finalised unalive logic (#38, #39), sprites.
  - Did a mild code refactor for easier reading.
  - Updated README.

                     Changes in version 0.0.0.9007                      

  - Used concept of 'XP freeze' at a certain age given in internal;
    chance of being unalive after this is dependent on that freeze value
    and the number of days since that age was reached (#23).
  - Adjusted passive XP accumulation (#24).
  - Added alert for user when pet levels up.
  - Created internal dataset as internal, containing $sprites and
    $constants for a single source of truth on level up thresholds, age
    for XP freeze, etc.
  - Added a chance-based minigame to the play() function.
  - Corrected and updated exported-function documentation.
  - Corrected unalive logic.

                     Changes in version 0.0.0.9006                      

  - Added simple draft of unalive logic (towards #23).
  - Re-instigated concept of 'dirty'.
  - Added warning to get_stats() if status bars have reached their
    maximum negative score.
  - Added check_blueprint to utils.

                     Changes in version 0.0.0.9005                      

  - Allowed for fourth level, a stage at which a pet can become unalive
    (towards #23).
  - Added common images for level 4 and unalive (towards #23).
  - Removed 'dirty' concept for simplificiation.

                     Changes in version 0.0.0.9004                      

  - Simplified the output of get_stats() and included 'bars' for status
    values.
  - Added graphics for species X, Y and Z for levels 0 (shared), 1, 2
    and 3 (#10).

                     Changes in version 0.0.0.9003                      

  - Added a list of placeholder 'graphics' as internal data, with
    methods to call (i.e. .get_pet_matrix()) and print them (i.e.
    .draw_pet()), wrapped into the exported function see_pet() (towards
    #10).
  - Added simple system for levelling up through .update_xp() (towards
    #9, #24).
  - see_stats() renamed to get_stats()

                     Changes in version 0.0.0.9002                      

  - Added play(), feed() and clean() functions for altering the pet's
    status values.
  - Set Depends to R (>= 4.0).

                     Changes in version 0.0.0.9001                      

  - Shifted focus to a fully local experience (#20).
  - Added internal functions to .create_, .write_, .read_ and
    .update_blueprint()s.
  - Introduced time-dependent blueprint updates (toward #9).
  - Added exported functions to lay_egg(), see_stats() and
    release_pet().
  - Added startup message (#6).
  - Updated README and DESCRIPTION.
  - Added NEWS file to track changes.

                     Changes in version 0.0.0.9000                      

  - Set up package, README, license, sample data, {pkgdown} website,
    low-level and user-facing functions.
  - Developed first attempt at function architecture, which leant
    heavily on GitHub gists for storing pet blueprints remotely.