-from naja.gameboard import LocationAction
+from naja.constants import BITS
+
+
+class LocationAction(object):
+ """
+ An action that may be performed on a location.
+ """
+
+ TEXT = None
+ USES_MSB = False
+
+ def __init__(self, required_bits, **data):
+ bits = set()
+ for bit in required_bits:
+ # Convert names to numbers if applicable.
+ bits.add(BITS.get(bit, bit))
+ self.required_bits = frozenset(bits)
+ self.data = data
+
+ def get_text(self):
+ substitutions = self.data.copy()
+ if 'direction' in self.data:
+ substitutions['rowcol'] = {
+ 'NORTH': 'column',
+ 'SOUTH': 'column',
+ 'EAST': 'row',
+ 'WEST': 'row',
+ }[self.data['direction']]
+ return self.TEXT % substitutions
+
+ def check_available(self, player):
+ return player.bits.check_bits(self.required_bits)
+
+ def perform_action(self, board, location):
+ raise NotImplementedError("TODO")
+
+ def check_and_clear_MSB(self, player):
+ if player.bits.check_bit(BITS.MSB):
+ player.bits.clear_bit(BITS.MSB)
+ return True
+ else:
+ return False
+
+ def export(self):
+ return {'required_bits': list(self.required_bits),
+ 'data': self.data,
+ 'action_class': self.__class__.__name__}
class DoNothing(LocationAction):
TEXT = "No effect."
- def perform_action(self, player, board):
+ def perform_action(self, board, location):
pass
-class LoseHeathOrMSB(LocationAction):
- TEXT = "Lose health. If MSB is set, it will be cleared instead."
+class LoseHealthOrMSB(LocationAction):
+ TEXT = "Lose health or MSB."
+ USES_MSB = True
+
+ def perform_action(self, board, location):
+ if not self.check_and_clear_MSB(board.player):
+ board.lose_health()
+
+
+class SetBits(LocationAction):
+ TEXT = "Set bits specified by this location."
+
+ def perform_action(self, board, location):
+ board.player.bits.set_bits(location.bitwise_operand)
- def perform_action(self, player, board):
- if not self.check_and_clear_MSB(player):
+
+class ToggleBits(LocationAction):
+ TEXT = "Toggle bits specified by this location."
+
+ def perform_action(self, board, location):
+ board.player.bits.toggle_bits(location.bitwise_operand)
+
+
+class LoseHealthOrMSBAndSetBits(LocationAction):
+ TEXT = "Lose health or MSB, then set bits specified by this location."
+ USES_MSB = True
+
+ def perform_action(self, board, location):
+ if not self.check_and_clear_MSB(board.player):
board.lose_health()
+ board.player.bits.set_bits(location.bitwise_operand)
+
+
+class AcquireWinToken(LocationAction):
+ TEXT = "Acquire a win token, then clear all key bits."
+
+ def perform_action(self, board, location):
+ board.acquire_win_token()
+ board.player.bits.clear_bits(set([
+ BITS.RED, BITS.GREEN, BITS.BLUE,
+ ]))
+
+
+class GainHealthAndClearBitsOrMSB(LocationAction):
+ TEXT = "Gain health, then clear bits specified by this location or MSB."
+ USES_MSB = True
+
+ def perform_action(self, board, location):
+ board.gain_health()
+ if not self.check_and_clear_MSB(board.player):
+ board.player.bits.clear_bits(location.bitwise_operand)
+
+
+class ShiftLocations(LocationAction):
+ TEXT = "Shift current %(rowcol)s %(direction)s."
+
+ def perform_action(self, board, location):
+ board.shift_locations(self.data['direction'])