1 from random import choice
3 from naja.constants import(
4 BITS, DIRECTION_BITS, CONDITION_BITS, PLAYER_DEFAULTS,
6 from naja.player import Player
7 from naja import actions
10 class GameBoard(object):
12 A representation of the game board.
15 def __init__(self, state, player, board_locations):
16 self.max_health = state['max_health']
17 self.wins_required = state['wins_required']
18 self.health = state['health']
19 self.wins = state['wins']
20 self.locations = [item.copy() for item in state['locations']]
22 self.board_locations = board_locations
23 self.player_mode = MOVE
26 def new_game(cls, locations_definition,
27 initial_bits=PLAYER_DEFAULTS.INITIAL_BITS,
28 initial_pos=PLAYER_DEFAULTS.INITIAL_POS,
29 max_health=PLAYER_DEFAULTS.MAX_HEALTH,
30 wins_required=PLAYER_DEFAULTS.WINS_REQUIRED):
32 'max_health': max_health,
34 'wins_required': wins_required,
36 'locations': locations_definition,
38 player = Player(initial_bits, initial_pos)
39 board_locations = cls.import_board_locations(
40 cls.generate_board(locations_definition))
41 return cls(state, player, board_locations)
44 def import_game(cls, definition):
45 state = definition.copy()
46 player = Player.import_player(state.pop('player'))
47 board_locations = cls.import_board_locations(
48 state.pop('board_locations'))
49 return cls(state, player, board_locations)
53 'max_health': self.max_health,
54 'health': self.health,
55 'wins_required': self.wins_required,
57 'locations': [item.copy() for item in self.locations],
58 'player': self.player.export(),
59 'board_locations': self.export_board_locations(),
63 def import_locations(cls, locations_definition):
65 LocationCard.import_location(definition)
66 for definition in locations_definition]
68 def export_board_locations(self):
70 (position, location.export())
71 for position, location in self.board_locations.iteritems())
74 def import_board_locations(cls, board_locations_definition):
76 (position, LocationCard.import_location(definition))
77 for position, definition in board_locations_definition.iteritems())
80 def generate_board(cls, locations_definition):
84 board_location = LocationCard.new_location(
85 choice(locations_definition).copy())
86 board_locations[(x, y)] = board_location.export()
87 return board_locations
89 def lose_health(self):
91 # TODO: Check win/lose
93 def acquire_win_token(self):
95 # TODO: Check win/lose
97 def replace_card(self, position):
98 location = LocationCard.new_location(choice(self.locations).copy())
99 self.board_locations[position] = location
101 def change_mode(self):
102 """Advance to the next mode"""
103 if self.player_mode == MOVE:
104 self.player_mode = ACT
105 elif self.player_mode == ACT:
106 self.player_mode = MOVE
108 raise RuntimeError("Illegal player mode %s" % self.player_mode)
111 class LocationCard(object):
113 A particular set of options available on a location.
116 def __init__(self, bitwise_operand, location_actions):
117 self.bitwise_operand = bitwise_operand
118 self.actions = location_actions
122 def import_location(cls, state):
124 cls.build_action(definition) for definition in state['actions']]
125 return cls(state['bitwise_operand'], location_actions)
128 def build_action(cls, definition):
129 action_class = getattr(actions, definition['action_class'])
130 required_bits = definition['required_bits']
131 data = definition.get('data', {})
132 return action_class(required_bits, **data)
135 def new_location(cls, definition):
136 return cls.import_location({
137 'bitwise_operand': cls.generate_bitwise_operand(),
138 'actions': definition['actions'],
143 'bitwise_operand': self.bitwise_operand,
144 'actions': [action.export() for action in self.actions],
147 def check_actions(self):
149 print "Warning: Location has no actions."
150 self.insert_default_default_action()
151 if self.actions[0].required_bits:
152 self.insert_default_default_action()
154 def insert_default_default_action(self):
155 self.actions.insert(0, self.build_action({
156 'action_class': 'DoNothing',
161 def generate_bitwise_operand():
163 Generate a set of two or three bits. At least one direction and one
164 condition bit will be included. There is a low probability of choosing
165 a third bit from the complete set.
168 bits.add(choice(DIRECTION_BITS.values()))
169 bits.add(choice(CONDITION_BITS.values()))
170 # One in three chance of adding a third bit, with a further one in four
171 # chance that it will match a bit already chosen.
172 if choice(range(3)) == 0:
173 bits.add(choice(BITS.values()))
174 return frozenset(bits)