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_glyphs(self):
  20         return self.GLYPHS
  21
  22     def get_msb_glyph(self):
  23         return self.MSB_GLYPH
  24
  25     def get_text(self, location=None):
  26         substitutions = self.data.copy()
  27
  28         if 'shift' in self.data:
  29             substitutions['shift'] = self.data['shift']
  30             substitutions['shift_glyph'] = ('{SHIFT_%s}'
  31                                             % self.data['direction'].upper())
  32         elif 'direction' in self.data:
  33             substitutions['rowcol'] = {
  34                 'NORTH': 'column',
  35                 'SOUTH': 'column',
  36                 'EAST': 'row',
  37                 'WEST': 'row',
  38             }[self.data['direction']]
  39             substitutions['direction'] = '{%s}' % (substitutions['direction'],)
  40
  41         if 'chesspiece' in self.data:
  42             substitutions['chesspiece_name'] = move_glyph(
  43                 self.data['chesspiece'])
  44
  45         if 'rot_direction' in self.data:
  46             substitutions['rot_direction_name'] = '{%s}' % (
  47                 substitutions['rot_direction'],)
  48
  49         if location is None:
  50             substitutions['location_bits'] = 'bits specified by this tile'
  51         else:
  52             substitutions['location_bits'] = bit_glyphs(
  53                 location.bitwise_operand)
  54
  55         text = self.TEXT
  56         if self.data.get('message', None) is not None:
  57             text = self.data['message']
  58
  59         return text % substitutions
  60
  61     def check_available(self, player):
  62         return player.bits.check_bits(self.required_bits)
  63
  64     def perform_action(self, board, location):
  65         raise NotImplementedError(
  66             "%s does not implement perform_action()." % (type(self).__name__,))
  67
  68     def check_and_clear_MSB(self, player):
  69         if player.bits.check_bit(BITS.MSB):
  70             player.bits.clear_bit(BITS.MSB)
  71             return True
  72         else:
  73             return False
  74
  75     def export(self):
  76         return {'required_bits': list(self.required_bits),
  77                 'data': self.data,
  78                 'action_class': self.__class__.__name__}
  79
  80
  81 class DoNothing(LocationAction):
  82     TEXT = "No effect."
  83     GLYPHS = (ACTION_GLYPHS.NOTHING,)
  84
  85     def perform_action(self, board, location):
  86         pass
  87
  88
  89 class LoseHealthOrMSB(LocationAction):
  90     TEXT = "Lose {HEALTH} or {MSB}."
  91     MSB_GLYPH = ACTION_GLYPHS.DAMAGE
  92
  93     def perform_action(self, board, location):
  94         if not self.check_and_clear_MSB(board.player):
  95             sound.play_sound('awwww.ogg')
  96             board.lose_health()
  97
  98
  99 class SetBits(LocationAction):
 100     TEXT = "Set %(location_bits)s."
 101     GLYPHS = (ACTION_GLYPHS.SET_BITS,)
 102
 103     def perform_action(self, board, location):
 104         board.player.bits.set_bits(location.bitwise_operand)
 105
 106
 107 class ClearBits(LocationAction):
 108     TEXT = "Clear %(location_bits)s."
 109     GLYPHS = (ACTION_GLYPHS.CLEAR_BITS,)
 110
 111     def perform_action(self, board, location):
 112         board.player.bits.clear_bits(location.bitwise_operand)
 113
 114
 115 class ToggleBits(LocationAction):
 116     TEXT = "Toggle %(location_bits)s."
 117     GLYPHS = (ACTION_GLYPHS.TOGGLE_BITS,)
 118
 119     def perform_action(self, board, location):
 120         board.player.bits.toggle_bits(location.bitwise_operand)
 121
 122
 123 class GenericBits(LocationAction):
 124     GLYPHS = (ACTION_GLYPHS.SET_BITS, ACTION_GLYPHS.CLEAR_BITS)
 125
 126     def __init__(self, *args, **kw):
 127         super(GenericBits, self).__init__(*args, **kw)
 128         self.set_bits = parse_bits(self.data.get('set', []))
 129         self.clear_bits = parse_bits(self.data.get('clear', []))
 130         self.toggle_bits = parse_bits(self.data.get('toggle', []))
 131
 132     def perform_action(self, board, location):
 133         bits = board.player.bits
 134         bits.set_bits(self.set_bits)
 135         bits.toggle_bits(self.toggle_bits)
 136         bits.clear_bits(self.clear_bits)
 137
 138     def get_text(self, location=None):
 139         if 'message' in self.data:
 140             return super(GenericBits, self).get_text()
 141         parts = []
 142         for template, bits in [
 143                 ('Set %s.', self.set_bits), ('Clear %s.', self.clear_bits),
 144                 ('Toggle %s', self.toggle_bits)]:
 145             if bits:
 146                 parts.append(template % (bit_glyphs(bits)))
 147         return " ".join(parts)
 148
 149
 150 class ShiftBits(LocationAction):
 151     TEXT = "Barrel-shift player bits %(shift_glyph)s %(shift)s."
 152     GLYPHS = (ACTION_GLYPHS.SHIFT_LEFT,)
 153
 154     def perform_action(self, board, location):
 155         shift = self.data['shift']
 156         if self.data['direction'] == 'left':
 157             board.player.bits.shift_bits_left(shift)
 158         else:
 159             board.player.bits.shift_bits_right(shift)
 160
 161
 162 class LoseHealthOrMSBAndSetBits(LocationAction):
 163     TEXT = "Lose {HEALTH} or {MSB}, then set %(location_bits)s."
 164     GLYPHS = (ACTION_GLYPHS.SET_BITS,)
 165     MSB_GLYPH = ACTION_GLYPHS.DAMAGE
 166
 167     def perform_action(self, board, location):
 168         if not self.check_and_clear_MSB(board.player):
 169             sound.play_sound('awwww.ogg')
 170             board.lose_health()
 171         board.player.bits.set_bits(location.bitwise_operand)
 172
 173
 174 class AcquireWinToken(LocationAction):
 175     TEXT = "Gain {WINTOKEN}, then clear {RED,GREEN,BLUE}."
 176     GLYPHS = (ACTION_GLYPHS.WINTOKEN,)
 177
 178     def perform_action(self, board, location):
 179         sound.play_sound('yipee.ogg')
 180         board.acquire_win_token()
 181         board.player.bits.clear_bits(set([
 182             BITS.RED, BITS.GREEN, BITS.BLUE,
 183         ]))
 184         if self.data.get('once', False):
 185             location.actions.remove(self)
 186
 187
 188 class GainHealth(LocationAction):
 189     TEXT = "Gain {HEALTH}."
 190     GLYPHS = (ACTION_GLYPHS.HEAL,)
 191
 192     def perform_action(self, board, location):
 193         sound.play_sound('aha.ogg')
 194         board.gain_health()
 195
 196
 197 class GainHealthAndClearBitsOrMSB(LocationAction):
 198     TEXT = "Gain {HEALTH}, then clear %(location_bits)s or {MSB}."
 199     GLYPHS = (ACTION_GLYPHS.HEAL,)
 200     MSB_GLYPH = ACTION_GLYPHS.CLEAR_BITS
 201
 202     def perform_action(self, board, location):
 203         sound.play_sound('aha.ogg')
 204         board.gain_health()
 205         if not self.check_and_clear_MSB(board.player):
 206             board.player.bits.clear_bits(location.bitwise_operand)
 207
 208
 209 class ShiftLocations(LocationAction):
 210     TEXT = "Shift current %(rowcol)s %(direction)s."
 211     GLYPHS = (ACTION_GLYPHS.CHANGE_BOARD,)
 212
 213     def perform_action(self, board, location):
 214         sound.play_sound('grind.ogg')
 215         board.shift_locations(self.data['direction'])
 216
 217
 218 class RotateLocations(LocationAction):
 219     TEXT = "Rotate adjacent tiles %(rot_direction_name)s."
 220     GLYPHS = (ACTION_GLYPHS.CHANGE_BOARD,)
 221
 222     def perform_action(self, board, location):
 223         sound.play_sound('grind.ogg')
 224         board.rotate_locations(self.data['rot_direction'])
 225
 226
 227 class AllowChessMove(LocationAction):
 228     TEXT = "Move like a %(chesspiece_name)s for one turn."
 229     GLYPHS = (ACTION_GLYPHS.MOVEMENT,)
 230
 231     def perform_action(self, board, location):
 232         if self.data['chesspiece'] in CHESS_PIECES:
 233             chesspiece = CHESS_PIECES[self.data['chesspiece']]
 234             board.allow_chess_move(chesspiece)
 235
 236
 237 class AllowChessMoveIfMSB(LocationAction):
 238     TEXT = (
 239         "Clear {MSB} and move like a %(chesspiece_name)s for one turn if it "
 240         "was set.")
 241     MSB_GLYPH = ACTION_GLYPHS.MOVEMENT
 242
 243     def perform_action(self, board, location):
 244         if self.data['chesspiece'] in CHESS_PIECES:
 245             if self.check_and_clear_MSB(board.player):
 246                 chesspiece = CHESS_PIECES[self.data['chesspiece']]
 247                 board.allow_chess_move(chesspiece)
 248
 249
 250 class GainMSB(LocationAction):
 251     TEXT = "Set {MSB}."
 252     GLYPHS = (ACTION_GLYPHS.MSB,)
 253
 254     def perform_action(self, board, location):
 255         board.player.bits.set_bit(BITS.MSB)