v0.4.1-preview

• animate_game now has n_transitions argument that uses tweenr
  to try to interpolate transition frames (#32).
• New starting board generators for specific games:
  • df_breakthrough
  • df_crossings
  • df_froggy_bottom
  • df_ley_lines
  • df_lines_of_action
  • df_piecepackman
  • df_turkish_draughts
• Portable Piecepack Notation enhancements:
  • Can now (re)move a stack of pieces i.e. 2b2-d4, *3d5, b4:2d5.
  • Default parser now uses both GameType and SetUp to create starting setup (#49).
  • Can now specify alternate movetext parsers with MovetextParser (#50).
  • Can now specify game System in GameType/SetUp fields.
  • Can now specify SetUp: None (or GameType: None).
  • Can now specify ScalingFactor in the default movetext parser or as
    an attribute of the starting data frame (#52).
  • PieceId can now refer to piece at beginning of the move with ^.
  • Location can now be &PieceId.
  • Can now rotate pieces with @> move token.
  • Can now "swap" pieces with # move token.

Bug fixes and minor improvements

• cat_piece now has basic support for the following game_systems:
  • bit and board components from checkers1 and checkers2
  • tile component from dominoes, dominoes_black, dominoes_blue
dominoes_green, dominoes_red, dominoes_white, dominoes_yellow.
    Only supports double-6 domino ranks (and not the remaining double-12 domino ranks).
  • die component from dice
  • pyramid component from icehouse_pieces
  • tile component from subpack
• cat_piece now also has basic support for (piecepack) matchsticks.

Breaking changes

• In PPN simplified piece notation 1, 2, 3 corresponds to icehouse pieces rank 1, 2, 3 in contrast to piecepack rank 2, 3, and 4 i.e. zero-pip icehouse pyramids have been removed.