naja/widgets/board.py

   1 """
   2 Widget that holds the game tiles.
   3 """
   4 import pygame.locals as pgl
   5
   6 from naja.constants import BOARD_SIZE, TILE_SIZE, KEYS, ACT
   7 from naja.events import finish_event
   8 from naja.sound import sound
   9
  10 from naja.widgets.base import Widget
  11 from naja.widgets.tile import TileWidget
  12
  13
  14 class BoardWidget(Widget):
  15     """
  16     Widget which holds all the tiles that make up the gameboard.
  17     """
  18     def __init__(self, pos, state, info):
  19         super(BoardWidget, self).__init__(pos, BOARD_SIZE)
  20         self.info = info
  21         self.state = state
  22         self.card_pos = state.player.position
  23         self._tiles = []
  24         self.legal = False
  25         for y in range(0, 5):
  26             for x in range(0, 5):
  27                 tile_pos = (pos[0] + x * TILE_SIZE[0],
  28                             pos[1] + y * TILE_SIZE[1])
  29                 self._tiles.append(TileWidget(tile_pos, state, (x, y)))
  30
  31     def prepare(self):
  32         for tile in self._tiles:
  33             tile.set_highlight(self.card_pos)
  34             tile.prepare()
  35         self.size = BOARD_SIZE
  36         if self.state.gameboard.player_mode == ACT:
  37             self.card_pos = self.state.player.position
  38
  39     def draw(self, surface):
  40         for tile in self._tiles:
  41             tile.draw(surface)
  42
  43     def update_card_pos(self, card_pos):
  44         self.card_pos = card_pos
  45         self.info.set_position(self.card_pos)
  46         self.legal = self.card_pos in self.state.player.legal_moves()
  47         sound.play_sound('zoop.ogg', volume=0.05)
  48
  49     def change_pos(self, offset):
  50         tpos = (offset[0] + self.card_pos[0], offset[1] + self.card_pos[1])
  51         if tpos[0] < 0 or tpos[1] < 0 or tpos[0] > 4 or tpos[1] > 4:
  52             return False
  53         self.update_card_pos(tpos)
  54         return True
  55
  56     def next_viable_pos(self):
  57         moves = self.state.player.legal_moves()
  58         try:
  59             idx = moves.index(self.card_pos)
  60             idx = (idx + 1) % len(moves)
  61         except ValueError:
  62             idx = 0
  63         self.update_card_pos(moves[idx])
  64
  65     def handle_event(self, ev):
  66         if self.state.gameboard.player_mode == ACT:
  67             return super(BoardWidget, self).handle_event(ev)
  68         if ev.type == pgl.KEYDOWN:
  69             if ev.key in KEYS.UP:
  70                 if self.change_pos((0, -1)):
  71                     return finish_event()
  72             elif ev.key in KEYS.DOWN:
  73                 if self.change_pos((0, +1)):
  74                     return finish_event()
  75             elif ev.key in KEYS.LEFT:
  76                 if self.change_pos((-1, 0)):
  77                     return finish_event()
  78             elif ev.key in KEYS.RIGHT:
  79                 if self.change_pos((+1, 0)):
  80                     return finish_event()
  81             elif ev.key in KEYS.SWITCH:
  82                 self.next_viable_pos()
  83                 return finish_event()
  84             elif ev.key in KEYS.SELECT:
  85                 if self.state.player.set_position(self.card_pos):
  86                     self.state.gameboard.change_mode(ACT)
  87                     self.info.set_position(self.card_pos)
  88                     sound.play_sound('chirp.ogg', volume=0.5)
  89                     return finish_event()
  90         return super(BoardWidget, self).handle_event(ev)