naja/actions.py

   1 from naja.constants import ACTION_GLYPHS, BITS, CHESS_PIECES
   2 from naja.sound import sound
   3 from naja.utils import bit_glyphs, move_glyph
   4
   5
   6 class LocationAction(object):
   7     """
   8     An action that may be performed on a location.
   9     """
  10
  11     TEXT = None
  12     GLYPHS = tuple()
  13     MSB_GLYPH = None
  14
  15     def __init__(self, required_bits, **data):
  16         self.required_bits = required_bits
  17         self.data = data
  18
  19     def get_text(self, location=None):
  20         substitutions = self.data.copy()
  21
  22         if 'shift' in self.data:
  23             substitutions['shift'] = self.data['shift']
  24             substitutions['shift_glyph'] = ('{SHIFT_%s}'
  25                                             % self.data['direction'].upper())
  26         elif 'direction' in self.data:
  27             substitutions['rowcol'] = {
  28                 'NORTH': 'column',
  29                 'SOUTH': 'column',
  30                 'EAST': 'row',
  31                 'WEST': 'row',
  32             }[self.data['direction']]
  33             substitutions['direction'] = '{%s}' % (substitutions['direction'],)
  34
  35         if 'chesspiece' in self.data:
  36             substitutions['chesspiece_name'] = move_glyph(
  37                 self.data['chesspiece'])
  38
  39         if 'rot_direction' in self.data:
  40             substitutions['rot_direction_name'] = '{%s}' % (
  41                 substitutions['rot_direction'],)
  42
  43         if location is None:
  44             substitutions['location_bits'] = 'bits specified by this location'
  45         else:
  46             substitutions['location_bits'] = bit_glyphs(
  47                 location.bitwise_operand)
  48
  49         return self.TEXT % substitutions
  50
  51     def check_available(self, player):
  52         return player.bits.check_bits(self.required_bits)
  53
  54     def perform_action(self, board, location):
  55         raise NotImplementedError(
  56             "%s does not implement perform_action()." % (type(self).__name__,))
  57
  58     def check_and_clear_MSB(self, player):
  59         if player.bits.check_bit(BITS.MSB):
  60             player.bits.clear_bit(BITS.MSB)
  61             return True
  62         else:
  63             return False
  64
  65     def export(self):
  66         return {'required_bits': list(self.required_bits),
  67                 'data': self.data,
  68                 'action_class': self.__class__.__name__}
  69
  70
  71 class DoNothing(LocationAction):
  72     TEXT = "No effect."
  73     GLYPHS = (ACTION_GLYPHS.NOTHING,)
  74
  75     def perform_action(self, board, location):
  76         pass
  77
  78
  79 class LoseHealthOrMSB(LocationAction):
  80     TEXT = "Lose {HEALTH} or {MSB}."
  81     MSB_GLYPH = ACTION_GLYPHS.DAMAGE
  82
  83     def perform_action(self, board, location):
  84         if not self.check_and_clear_MSB(board.player):
  85             sound.play_sound('awwww.ogg')
  86             board.lose_health()
  87
  88
  89 class SetBits(LocationAction):
  90     TEXT = "Set %(location_bits)s."
  91     GLYPHS = (ACTION_GLYPHS.SET_BITS,)
  92
  93     def perform_action(self, board, location):
  94         board.player.bits.set_bits(location.bitwise_operand)
  95
  96
  97 class ToggleBits(LocationAction):
  98     TEXT = "Toggle %(location_bits)s."
  99     GLYPHS = (ACTION_GLYPHS.TOGGLE_BITS,)
 100
 101     def perform_action(self, board, location):
 102         board.player.bits.toggle_bits(location.bitwise_operand)
 103
 104
 105 class ShiftBits(LocationAction):
 106     TEXT = "Barrel-shift player bits %(shift_glyph)s %(shift)s."
 107     GLYPHS = (ACTION_GLYPHS.SHIFT_LEFT,)
 108
 109     def perform_action(self, board, location):
 110         shift = self.data['shift']
 111         if self.data['direction'] == 'left':
 112             board.player.bits.shift_bits_left(shift)
 113         else:
 114             board.player.bits.shift_bits_right(shift)
 115
 116
 117 class LoseHealthOrMSBAndSetBits(LocationAction):
 118     TEXT = "Lose {HEALTH} or {MSB}, then set %(location_bits)s."
 119     GLYPHS = (ACTION_GLYPHS.SET_BITS,)
 120     MSB_GLYPH = ACTION_GLYPHS.DAMAGE
 121
 122     def perform_action(self, board, location):
 123         if not self.check_and_clear_MSB(board.player):
 124             sound.play_sound('awwww.ogg')
 125             board.lose_health()
 126         board.player.bits.set_bits(location.bitwise_operand)
 127
 128
 129 class AcquireWinToken(LocationAction):
 130     TEXT = "Gain {WINTOKEN}, then clear {RED,GREEN,BLUE}."
 131     GLYPHS = (ACTION_GLYPHS.WINTOKEN,)
 132
 133     def perform_action(self, board, location):
 134         sound.play_sound('yipee.ogg')
 135         board.acquire_win_token()
 136         board.player.bits.clear_bits(set([
 137             BITS.RED, BITS.GREEN, BITS.BLUE,
 138         ]))
 139
 140
 141 class GainHealth(LocationAction):
 142     TEXT = "Gain {HEALTH}."
 143     GLYPHS = (ACTION_GLYPHS.HEAL,)
 144
 145     def perform_action(self, board, location):
 146         sound.play_sound('aha.ogg')
 147         board.gain_health()
 148
 149
 150 class GainHealthAndClearBitsOrMSB(LocationAction):
 151     TEXT = "Gain {HEALTH}, then clear %(location_bits)s or {MSB}."
 152     GLYPHS = (ACTION_GLYPHS.HEAL,)
 153     MSB_GLYPH = ACTION_GLYPHS.CLEAR_BITS
 154
 155     def perform_action(self, board, location):
 156         sound.play_sound('aha.ogg')
 157         board.gain_health()
 158         if not self.check_and_clear_MSB(board.player):
 159             board.player.bits.clear_bits(location.bitwise_operand)
 160
 161
 162 class ShiftLocations(LocationAction):
 163     TEXT = "Shift current %(rowcol)s %(direction)s."
 164     GLYPHS = (ACTION_GLYPHS.CHANGE_BOARD,)
 165
 166     def perform_action(self, board, location):
 167         sound.play_sound('grind.ogg')
 168         board.shift_locations(self.data['direction'])
 169
 170
 171 class RotateLocations(LocationAction):
 172     TEXT = "Rotate adjacent locations %(rot_direction_name)s."
 173     GLYPHS = (ACTION_GLYPHS.CHANGE_BOARD,)
 174
 175     def perform_action(self, board, location):
 176         sound.play_sound('grind.ogg')
 177         board.rotate_locations(self.data['rot_direction'])
 178
 179
 180 class AllowChessMove(LocationAction):
 181     TEXT = "Move like a %(chesspiece_name)s for one turn."
 182     GLYPHS = (ACTION_GLYPHS.MOVEMENT,)
 183
 184     def perform_action(self, board, location):
 185         if self.data['chesspiece'] in CHESS_PIECES:
 186             chesspiece = CHESS_PIECES[self.data['chesspiece']]
 187             board.allow_chess_move(chesspiece)
 188
 189
 190 class AllowChessMoveIfMSB(LocationAction):
 191     TEXT = "Clear {MSB} and move like a %(chesspiece_name)s for one turn."
 192     MSB_GLYPH = ACTION_GLYPHS.MOVEMENT
 193
 194     def perform_action(self, board, location):
 195         if self.data['chesspiece'] in CHESS_PIECES:
 196             if self.check_and_clear_MSB(board.player):
 197                 chesspiece = CHESS_PIECES[self.data['chesspiece']]
 198                 board.allow_chess_move(chesspiece)