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