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         self._prepare_countdown(card)
  78
  79     def _prepare_countdown(self, card):
  80         if card.replacement_time is None:
  81             return
  82         elif card.replacement_time <= 1:
  83             glyph = 'glyphs/countdown_1.png'
  84         elif card.replacement_time == 2:
  85             glyph = 'glyphs/countdown_2.png'
  86         elif card.replacement_time == 3:
  87             glyph = 'glyphs/countdown_3.png'
  88         elif card.replacement_time < 8:
  89             glyph = 'glyphs/countdown_4.png'
  90         else:
  91             glyph = 'glyphs/countdown_5.png'
  92         img = resources.get_image(
  93             glyph, transforms=(EIGHT_BIT, blender(PALETTE.DARK_VIOLET)))
  94         self.surface.blit(img, (TILE_SIZE[0] - 20, 0))
  95
  96     def _prepare_lock(self, action, y_offset):
  97         required_keys = action.required_bits & frozenset([
  98             BITS.RED, BITS.GREEN, BITS.BLUE])
  99         if required_keys not in BIT_MAP:
 100             return 4
 101
 102         img_name = BIT_MAP[required_keys]
 103
 104         if self.board_pos != self.state.player.position:
 105             x_offset = 0
 106         else:
 107             img_name = img_name.replace('.png', '_small.png')
 108             x_offset = 2
 109             if y_offset == LOCK_HEIGHT:
 110                 y_offset = 0  # middle -> top
 111             elif y_offset == 2 * LOCK_HEIGHT:
 112                 # bottom -> further down
 113                 y_offset += LOCK_HEIGHT - SMALL_LOCK_HEIGHT - 2
 114
 115         img = resources.get_image(img_name, transforms=(EIGHT_BIT,))
 116         self.surface.blit(img, (x_offset, y_offset))
 117         return x_offset + img.get_width() + 2
 118
 119     def _prepare_action(self, action, y_offset):
 120         x_offset = self._prepare_lock(action, y_offset)
 121         if self.board_pos != self.state.player.position:
 122             for glyph in action.get_glyphs():
 123                 img = resources.get_image(glyph, transforms=(EIGHT_BIT,))
 124                 self.surface.blit(img, (x_offset, y_offset + 4))
 125                 x_offset += img.get_width()
 126             if action.get_msb_glyph() is not None:
 127                 img = resources.get_image(
 128                     action.get_msb_glyph(),
 129                     transforms=(EIGHT_BIT, blender(PALETTE.LIGHT_VIOLET)))
 130                 self.surface.blit(img, (x_offset, y_offset + 4))
 131                 x_offset += img.get_width()
 132         return y_offset + LOCK_HEIGHT
 133
 134     def set_highlight(self, pos):
 135         self.highlighted = False
 136         if (self.state.gameboard.player_mode == EXAMINE and
 137                 self.board_pos == pos):
 138             self.highlighted = True
 139
 140     def draw(self, surface):
 141         scaled_width = self.surface.get_width() - self.animation
 142         scaled_height = self.surface.get_height() - self.animation
 143         scaled_position = (self.pos[0] + (self.animation / 2),
 144                            self.pos[1] + (self.animation / 2))
 145         if self.animation > 0:
 146             self.animation = max(0, self.animation - 4)
 147         scaled_surface = pygame.transform.scale(
 148             self.surface, (scaled_width, scaled_height))
 149         surface.blit(scaled_surface, scaled_position)