naja/widgets/tile.py

   1 # These will probably need to go away when we have images
   2 import pygame
   3
   4 from naja.constants import (
   5     TILE_SIZE, BITS, LOCK_HEIGHT, SMALL_LOCK_HEIGHT, EXAMINE, PALETTE)
   6 from naja.resources import resources
   7 from naja.resources.mutators import EIGHT_BIT, blender
   8 from naja.widgets.base import Widget
   9
  10
  11 BIT_MAP = {
  12     frozenset([BITS.RED]): 'board/tile_red.png',
  13     frozenset([BITS.GREEN]): 'board/tile_green.png',
  14     frozenset([BITS.BLUE]): 'board/tile_blue.png',
  15     frozenset([BITS.RED, BITS.GREEN]): 'board/tile_red_green.png',
  16     frozenset([BITS.RED, BITS.BLUE]): 'board/tile_red_blue.png',
  17     frozenset([BITS.GREEN, BITS.BLUE]): 'board/tile_green_blue.png',
  18     frozenset([BITS.RED, BITS.GREEN, BITS.BLUE]):
  19         'board/tile_red_green_blue.png',
  20 }
  21
  22
  23 class TileWidget(Widget):
  24     """Widget which holds a tile on the game board."""
  25     def __init__(self, pos, state=None, board_pos=None):
  26         super(TileWidget, self).__init__(pos, TILE_SIZE)
  27         self.state = state
  28         self.current_card = None
  29         self.board_pos = board_pos
  30         self.highlighted = False
  31         self.animation = TILE_SIZE[0]
  32
  33     def prepare(self):
  34         # Draw background
  35         x, y = abs(self.board_pos[0] - 2), abs(self.board_pos[1] - 2)
  36
  37         if self.state.gameboard.puzzle:
  38             tile_1_name = 'board/tile_1.png'
  39             tile_2_name = 'board/tile_2_puzzle.png'
  40             tile_available_name = 'board/tile_available_puzzle.png'
  41         else:
  42             tile_1_name = 'board/tile_1.png'
  43             tile_2_name = 'board/tile_2.png'
  44             tile_available_name = 'board/tile_available.png'
  45
  46         if (x + y) % 2 == 0:
  47             bg_name = tile_2_name
  48         else:
  49             bg_name = tile_1_name
  50         bg = resources.get_image(bg_name, transforms=(EIGHT_BIT,))
  51         overlays = []
  52
  53         legal_move = (self.board_pos in self.state.player.legal_moves())
  54
  55         if self.state.gameboard.player_mode == EXAMINE and legal_move:
  56             overlays.append(resources.get_image(
  57                 tile_available_name, transforms=(EIGHT_BIT,)))
  58         if self.highlighted:
  59             overlays.append(resources.get_image(
  60                 'board/tile_selected.png',
  61                 transforms=(EIGHT_BIT,)))
  62
  63         self.surface = pygame.surface.Surface(TILE_SIZE)
  64         self.surface.blit(bg, (0, 0))
  65         for overlay in overlays:
  66             self.surface.blit(overlay, (0, 0))
  67         # Look up the required bits on the board location
  68         card = self.state.board_locations[self.board_pos]
  69         if card is not self.current_card:
  70             self.animation = TILE_SIZE[0]
  71             self.current_card = card
  72
  73         y_offset = TILE_SIZE[1] - LOCK_HEIGHT * len(card.actions)
  74         for action in card.actions:
  75             y_offset = self._prepare_action(action, y_offset)
  76
  77     def _prepare_lock(self, action, y_offset):
  78         if not action.required_bits:
  79             return 4
  80
  81         img_name = BIT_MAP[action.required_bits]
  82
  83         if self.board_pos != self.state.player.position:
  84             x_offset = 0
  85         else:
  86             img_name = img_name.replace('.png', '_small.png')
  87             x_offset = 2
  88             if y_offset == LOCK_HEIGHT:
  89                 y_offset = 0  # middle -> top
  90             elif y_offset == 2 * LOCK_HEIGHT:
  91                 # bottom -> further down
  92                 y_offset += LOCK_HEIGHT - SMALL_LOCK_HEIGHT - 2
  93
  94         img = resources.get_image(img_name, transforms=(EIGHT_BIT,))
  95         self.surface.blit(img, (x_offset, y_offset))
  96         return x_offset + img.get_width() + 2
  97
  98     def _prepare_action(self, action, y_offset):
  99         x_offset = self._prepare_lock(action, y_offset)
 100         if self.board_pos != self.state.player.position:
 101             for glyph in action.GLYPHS:
 102                 img = resources.get_image(glyph, transforms=(EIGHT_BIT,))
 103                 self.surface.blit(img, (x_offset, y_offset + 4))
 104                 x_offset += img.get_width()
 105             if action.MSB_GLYPH is not None:
 106                 img = resources.get_image(
 107                     action.MSB_GLYPH,
 108                     transforms=(EIGHT_BIT, blender(PALETTE.LIGHT_VIOLET)))
 109                 self.surface.blit(img, (x_offset, y_offset + 4))
 110                 x_offset += img.get_width()
 111         return y_offset + LOCK_HEIGHT
 112
 113     def set_highlight(self, pos):
 114         self.highlighted = False
 115         if (self.state.gameboard.player_mode == EXAMINE and
 116                 self.board_pos == pos):
 117             self.highlighted = True
 118
 119     def draw(self, surface):
 120         scaled_width = self.surface.get_width() - self.animation
 121         scaled_height = self.surface.get_height() - self.animation
 122         scaled_position = (self.pos[0] + (self.animation / 2),
 123                            self.pos[1] + (self.animation / 2))
 124         if self.animation > 0:
 125             self.animation = max(0, self.animation - 4)
 126         scaled_surface = pygame.transform.scale(
 127             self.surface, (scaled_width, scaled_height))
 128         surface.blit(scaled_surface, scaled_position)