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 (x + y) % 2 == 0:
  38             bg_name = 'board/tile_2.png'
  39         else:
  40             bg_name = 'board/tile_1.png'
  41         bg = resources.get_image(bg_name, transforms=(EIGHT_BIT,))
  42         overlays = []
  43
  44         legal_move = (self.board_pos in self.state.player.legal_moves())
  45
  46         if self.state.gameboard.player_mode == EXAMINE and legal_move:
  47             overlays.append(resources.get_image(
  48                 'board/tile_available.png', transforms=(EIGHT_BIT,)))
  49         if self.highlighted:
  50             overlays.append(resources.get_image(
  51                 'board/tile_selected.png',
  52                 transforms=(EIGHT_BIT,)))
  53
  54         self.surface = pygame.surface.Surface(TILE_SIZE)
  55         self.surface.blit(bg, (0, 0))
  56         for overlay in overlays:
  57             self.surface.blit(overlay, (0, 0))
  58         # Look up the required bits on the board location
  59         card = self.state.board_locations[self.board_pos]
  60         if card is not self.current_card:
  61             self.animation = TILE_SIZE[0]
  62             self.current_card = card
  63
  64         y_offset = TILE_SIZE[1] - LOCK_HEIGHT * len(card.actions)
  65         for action in card.actions:
  66             y_offset = self._prepare_action(action, y_offset)
  67
  68     def _prepare_lock(self, action, y_offset):
  69         if not action.required_bits:
  70             return 4
  71
  72         img_name = BIT_MAP[action.required_bits]
  73
  74         if self.board_pos != self.state.player.position:
  75             x_offset = 0
  76         else:
  77             img_name = img_name.replace('.png', '_small.png')
  78             x_offset = 2
  79             if y_offset == LOCK_HEIGHT:
  80                 y_offset = 0  # middle -> top
  81             elif y_offset == 2 * LOCK_HEIGHT:
  82                 # bottom -> further down
  83                 y_offset += LOCK_HEIGHT - SMALL_LOCK_HEIGHT - 2
  84
  85         img = resources.get_image(img_name, transforms=(EIGHT_BIT,))
  86         self.surface.blit(img, (x_offset, y_offset))
  87         return x_offset + img.get_width() + 2
  88
  89     def _prepare_action(self, action, y_offset):
  90         x_offset = self._prepare_lock(action, y_offset)
  91         if self.board_pos != self.state.player.position:
  92             for glyph in action.GLYPHS:
  93                 img = resources.get_image(glyph, transforms=(EIGHT_BIT,))
  94                 self.surface.blit(img, (x_offset, y_offset + 4))
  95                 x_offset += img.get_width()
  96             if action.MSB_GLYPH is not None:
  97                 img = resources.get_image(
  98                     action.MSB_GLYPH,
  99                     transforms=(EIGHT_BIT, blender(PALETTE.LIGHT_VIOLET)))
 100                 self.surface.blit(img, (x_offset, y_offset + 4))
 101                 x_offset += img.get_width()
 102         return y_offset + LOCK_HEIGHT
 103
 104     def set_highlight(self, pos):
 105         self.highlighted = False
 106         if (self.state.gameboard.player_mode == EXAMINE and
 107                 self.board_pos == pos):
 108             self.highlighted = True
 109
 110     def draw(self, surface):
 111         scaled_width = self.surface.get_width() - self.animation
 112         scaled_height = self.surface.get_height() - self.animation
 113         scaled_position = (self.pos[0] + (self.animation / 2),
 114                            self.pos[1] + (self.animation / 2))
 115         if self.animation > 0:
 116             self.animation = max(0, self.animation - 4)
 117         scaled_surface = pygame.transform.scale(
 118             self.surface, (scaled_width, scaled_height))
 119         surface.blit(scaled_surface, scaled_position)