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, parse_bits
   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 tile'
  45         else:
  46             substitutions['location_bits'] = bit_glyphs(
  47                 location.bitwise_operand)
  48
  49         text = self.TEXT
  50         if self.data.get('message', None) is not None:
  51             text = self.data['message']
  52
  53         return text % substitutions
  54
  55     def check_available(self, player):
  56         return player.bits.check_bits(self.required_bits)
  57
  58     def perform_action(self, board, location):
  59         raise NotImplementedError(
  60             "%s does not implement perform_action()." % (type(self).__name__,))
  61
  62     def check_and_clear_MSB(self, player):
  63         if player.bits.check_bit(BITS.MSB):
  64             player.bits.clear_bit(BITS.MSB)
  65             return True
  66         else:
  67             return False
  68
  69     def export(self):
  70         return {'required_bits': list(self.required_bits),
  71                 'data': self.data,
  72                 'action_class': self.__class__.__name__}
  73
  74
  75 class DoNothing(LocationAction):
  76     TEXT = "No effect."
  77     GLYPHS = (ACTION_GLYPHS.NOTHING,)
  78
  79     def perform_action(self, board, location):
  80         pass
  81
  82
  83 class LoseHealthOrMSB(LocationAction):
  84     TEXT = "Lose {HEALTH} or {MSB}."
  85     MSB_GLYPH = ACTION_GLYPHS.DAMAGE
  86
  87     def perform_action(self, board, location):
  88         if not self.check_and_clear_MSB(board.player):
  89             sound.play_sound('awwww.ogg')
  90             board.lose_health()
  91
  92
  93 class SetBits(LocationAction):
  94     TEXT = "Set %(location_bits)s."
  95     GLYPHS = (ACTION_GLYPHS.SET_BITS,)
  96
  97     def perform_action(self, board, location):
  98         board.player.bits.set_bits(location.bitwise_operand)
  99
 100
 101 class ClearBits(LocationAction):
 102     TEXT = "Clear %(location_bits)s."
 103     GLYPHS = (ACTION_GLYPHS.CLEAR_BITS,)
 104
 105     def perform_action(self, board, location):
 106         board.player.bits.clear_bits(location.bitwise_operand)
 107
 108
 109 class ToggleBits(LocationAction):
 110     TEXT = "Toggle %(location_bits)s."
 111     GLYPHS = (ACTION_GLYPHS.TOGGLE_BITS,)
 112
 113     def perform_action(self, board, location):
 114         board.player.bits.toggle_bits(location.bitwise_operand)
 115
 116
 117 class GenericBits(LocationAction):
 118     GLYPHS = (ACTION_GLYPHS.SET_BITS, ACTION_GLYPHS.CLEAR_BITS)
 119
 120     def __init__(self, *args, **kw):
 121         super(GenericBits, self).__init__(*args, **kw)
 122         self.set_bits = parse_bits(self.data.get('set', []))
 123         self.clear_bits = parse_bits(self.data.get('clear', []))
 124         self.toggle_bits = parse_bits(self.data.get('toggle', []))
 125
 126     def perform_action(self, board, location):
 127         bits = board.player.bits
 128         bits.set_bits(self.set_bits)
 129         bits.toggle_bits(self.toggle_bits)
 130         bits.clear_bits(self.clear_bits)
 131
 132     def get_text(self, location=None):
 133         if 'message' in self.data:
 134             return super(GenericBits, self).get_text()
 135         parts = []
 136         for template, bits in [
 137                 ('Set %s.', self.set_bits), ('Clear %s.', self.clear_bits),
 138                 ('Toggle %s', self.toggle_bits)]:
 139             if bits:
 140                 parts.append(template % (bit_glyphs(bits)))
 141         return " ".join(parts)
 142
 143
 144 class ShiftBits(LocationAction):
 145     TEXT = "Barrel-shift player bits %(shift_glyph)s %(shift)s."
 146     GLYPHS = (ACTION_GLYPHS.SHIFT_LEFT,)
 147
 148     def perform_action(self, board, location):
 149         shift = self.data['shift']
 150         if self.data['direction'] == 'left':
 151             board.player.bits.shift_bits_left(shift)
 152         else:
 153             board.player.bits.shift_bits_right(shift)
 154
 155
 156 class LoseHealthOrMSBAndSetBits(LocationAction):
 157     TEXT = "Lose {HEALTH} or {MSB}, then set %(location_bits)s."
 158     GLYPHS = (ACTION_GLYPHS.SET_BITS,)
 159     MSB_GLYPH = ACTION_GLYPHS.DAMAGE
 160
 161     def perform_action(self, board, location):
 162         if not self.check_and_clear_MSB(board.player):
 163             sound.play_sound('awwww.ogg')
 164             board.lose_health()
 165         board.player.bits.set_bits(location.bitwise_operand)
 166
 167
 168 class AcquireWinToken(LocationAction):
 169     TEXT = "Gain {WINTOKEN}, then clear {RED,GREEN,BLUE}."
 170     GLYPHS = (ACTION_GLYPHS.WINTOKEN,)
 171
 172     def perform_action(self, board, location):
 173         sound.play_sound('yipee.ogg')
 174         board.acquire_win_token()
 175         board.player.bits.clear_bits(set([
 176             BITS.RED, BITS.GREEN, BITS.BLUE,
 177         ]))
 178
 179
 180 class GainHealth(LocationAction):
 181     TEXT = "Gain {HEALTH}."
 182     GLYPHS = (ACTION_GLYPHS.HEAL,)
 183
 184     def perform_action(self, board, location):
 185         sound.play_sound('aha.ogg')
 186         board.gain_health()
 187
 188
 189 class GainHealthAndClearBitsOrMSB(LocationAction):
 190     TEXT = "Gain {HEALTH}, then clear %(location_bits)s or {MSB}."
 191     GLYPHS = (ACTION_GLYPHS.HEAL,)
 192     MSB_GLYPH = ACTION_GLYPHS.CLEAR_BITS
 193
 194     def perform_action(self, board, location):
 195         sound.play_sound('aha.ogg')
 196         board.gain_health()
 197         if not self.check_and_clear_MSB(board.player):
 198             board.player.bits.clear_bits(location.bitwise_operand)
 199
 200
 201 class ShiftLocations(LocationAction):
 202     TEXT = "Shift current %(rowcol)s %(direction)s."
 203     GLYPHS = (ACTION_GLYPHS.CHANGE_BOARD,)
 204
 205     def perform_action(self, board, location):
 206         sound.play_sound('grind.ogg')
 207         board.shift_locations(self.data['direction'])
 208
 209
 210 class RotateLocations(LocationAction):
 211     TEXT = "Rotate adjacent tiles %(rot_direction_name)s."
 212     GLYPHS = (ACTION_GLYPHS.CHANGE_BOARD,)
 213
 214     def perform_action(self, board, location):
 215         sound.play_sound('grind.ogg')
 216         board.rotate_locations(self.data['rot_direction'])
 217
 218
 219 class AllowChessMove(LocationAction):
 220     TEXT = "Move like a %(chesspiece_name)s for one turn."
 221     GLYPHS = (ACTION_GLYPHS.MOVEMENT,)
 222
 223     def perform_action(self, board, location):
 224         if self.data['chesspiece'] in CHESS_PIECES:
 225             chesspiece = CHESS_PIECES[self.data['chesspiece']]
 226             board.allow_chess_move(chesspiece)
 227
 228
 229 class AllowChessMoveIfMSB(LocationAction):
 230     TEXT = (
 231         "Clear {MSB} and move like a %(chesspiece_name)s for one turn if it "
 232         "was set.")
 233     MSB_GLYPH = ACTION_GLYPHS.MOVEMENT
 234
 235     def perform_action(self, board, location):
 236         if self.data['chesspiece'] in CHESS_PIECES:
 237             if self.check_and_clear_MSB(board.player):
 238                 chesspiece = CHESS_PIECES[self.data['chesspiece']]
 239                 board.allow_chess_move(chesspiece)
 240
 241
 242 class GainMSB(LocationAction):
 243     TEXT = "Set {MSB}."
 244     GLYPHS = (ACTION_GLYPHS.MSB,)
 245
 246     def perform_action(self, board, location):
 247         board.player.bits.set_bit(BITS.MSB)