naja/widgets/info_area.py

   1 """
   2 Widget for the game board information area.
   3 """
   4 import pygame
   5 import pygame.locals as pgl
   6
   7 from naja.constants import (
   8     INFO_SIZE, ACT, KEYS, EXAMINE, PALETTE,
   9     ACTION_TEXT_OFFSET, INFO_LEFT_PADDING,
  10     INFO_RIGHT_PADDING, BIT_SIZE, BITS)
  11 from naja.events import finish_event
  12 from naja.resources import resources
  13 from naja.resources.mutators import EIGHT_BIT, blender
  14 from naja.sound import sound
  15 from naja.utils import bit_glyphs
  16
  17 from naja.widgets.base import Widget
  18 from naja.widgets.tile import BIT_MAP
  19 from naja.widgets.text import TextBoxWidget, TextWidget
  20 from naja import constants
  21
  22
  23 HINTS = {
  24     ACT: "Choose an action using {NORTH,SOUTH} keys.\n"
  25          "Press {RETURN} to execute it.",
  26     EXAMINE: "Browse the tiles with {NORTH,SOUTH,EAST,WEST} keys.",
  27 }
  28
  29 HINT_LEGAL_MOVE = "\nPress {RETURN} to move to this tile."
  30
  31 TITLES = {
  32     ACT: "Choose an Action",
  33     EXAMINE: "Select a Tile",
  34 }
  35
  36
  37 class InfoAreaWidget(Widget):
  38     """
  39     Widget for the game board information area.
  40     """
  41     def __init__(self, pos, state):
  42         super(InfoAreaWidget, self).__init__(pos, INFO_SIZE)
  43         self.state = state
  44         self.chosen = None
  45         self.card_position = state.player.position
  46         self.set_position(state.player.position)
  47         self.flash_count = 0
  48         self.flash_light = True
  49
  50     def prepare(self):
  51         if self.state.gameboard.player_mode == ACT:
  52             self.set_position(self.state.player.position)
  53         self.surface = pygame.surface.Surface(INFO_SIZE)
  54         self.surface.fill((0, 0, 0))
  55
  56         box_width = INFO_SIZE[0] - INFO_LEFT_PADDING - INFO_RIGHT_PADDING
  57         y_offset = 0
  58         pos = lambda: (INFO_LEFT_PADDING, y_offset)
  59
  60         # Top title
  61         title = TextWidget(
  62             pos(), TITLES[self.state.gameboard.player_mode],
  63             colour=PALETTE.WHITE)
  64         title.render(self.surface)
  65         y_offset += title.surface.get_rect().height - 4
  66
  67         # Bits
  68         bits_text = ''.join('1' if bit in self.card.bitwise_operand else '0'
  69                             for bit in reversed(range(8)))
  70         if self.card.bitwise_operand:
  71             bits_text = '%s %s' % (
  72                 bits_text, bit_glyphs(self.card.bitwise_operand))
  73         card_bits = TextBoxWidget(
  74             pos(), bits_text, box_width=box_width,
  75             colour=PALETTE.LIGHT_TURQUOISE, bg_colour=PALETTE.BLACK)
  76         card_bits.render(self.surface)
  77         y_offset += card_bits.surface.get_rect().height + 4
  78
  79         # Actions
  80         for choice, action in enumerate(self.card.actions):
  81             y_offset = self.prepare_action(choice, action, y_offset, box_width)
  82
  83         # Hint text
  84         hint_text = HINTS[self.state.gameboard.player_mode]
  85         if self.state.gameboard.player_mode == EXAMINE:
  86             if self.card_position in self.state.player.legal_moves():
  87                 hint_text += HINT_LEGAL_MOVE
  88
  89         hint = TextBoxWidget(
  90             (0, 0), hint_text, padding=4,
  91             colour=PALETTE.WHITE, border=2,
  92             bg_colour=PALETTE.BLACK, border_colour=PALETTE.BLUE,
  93             box_width=box_width)
  94         hint.prepare()
  95         y_offset = (INFO_SIZE[1] - hint.surface.get_rect().height
  96                     - BIT_SIZE[1] - 2)
  97         self.surface.blit(hint.surface, pos())
  98
  99         # Game mode (puzzle, easy, standard, hard, etc ...)
 100         game_mode = TextBoxWidget(
 101             (0, 0), self.mode_hint(), padding=4, centre=True,
 102             colour=PALETTE.WHITE, border=2,
 103             bg_colour=PALETTE.BLACK, border_colour=PALETTE.BLUE,
 104             box_width=box_width)
 105         game_mode.prepare()
 106
 107         y_offset = (INFO_SIZE[1] - BIT_SIZE[1] + 12)
 108         self.surface.blit(game_mode.surface, pos())
 109
 110     def mode_hint(self):
 111         gameboard = self.state.gameboard
 112         if gameboard.puzzle:
 113             return "PUZZLE"
 114         return {
 115             0: "DEATH", 1: "LUDICROUS",
 116             2: "RAMBO", 3: "HARD",
 117             4: "STANDARD", 5: "EASY",
 118         }.get(gameboard.max_health, "UNKNOWN")
 119
 120     def prepare_action(self, choice, action, y_offset, box_width):
 121         x_offset = INFO_LEFT_PADDING
 122         glyphs_x_offset = 0
 123         glyphs_y_offset = y_offset
 124         y_offset += ACTION_TEXT_OFFSET
 125         action_viable = action.check_available(self.state.player)
 126         text_colour = PALETTE.BLACK if action_viable else PALETTE.GREY
 127
 128         text = TextBoxWidget(
 129             (x_offset, y_offset), action.get_text(self.card),
 130             box_width=box_width,
 131             fontsize=28, colour=text_colour,
 132             border=2, border_colour=PALETTE.GREY)
 133         text.render(self.surface)
 134
 135         border_colour = None
 136         if choice == self.chosen:
 137             if self.flash_light:
 138                 border_colour = (PALETTE.GREEN if action_viable else
 139                                  PALETTE.ORANGE)
 140             else:
 141                 border_colour = (PALETTE.DARK_GREEN if action_viable else
 142                                  PALETTE.DARK_RED)
 143
 144         if border_colour:
 145             bottom = y_offset + text.surface.get_rect().height
 146             right = text.surface.get_rect().width + x_offset
 147             pygame.draw.lines(self.surface, border_colour, True,
 148                               [(x_offset, y_offset), (right, y_offset),
 149                                (right, bottom), (x_offset, bottom)], 4)
 150
 151         required_keys = action.required_bits & frozenset([
 152             BITS.RED, BITS.GREEN, BITS.BLUE])
 153         if required_keys in BIT_MAP:
 154             img_name = BIT_MAP[required_keys].replace(
 155                 '.png', '_small.png')
 156             img = resources.get_image(img_name,
 157                                       transforms=(EIGHT_BIT,))
 158             self.surface.blit(img, (glyphs_x_offset, glyphs_y_offset))
 159             glyphs_x_offset += img.get_width() + 4
 160         else:
 161             glyphs_x_offset = INFO_LEFT_PADDING
 162
 163         if BITS.MSB in action.required_bits:
 164             msb = resources.get_image('board/msb_lock_decoration.png',
 165                                       transforms=(EIGHT_BIT,))
 166             msb_rect = msb.get_rect()
 167             self.surface.blit(
 168                 msb, (glyphs_x_offset - msb_rect.width - 4, glyphs_y_offset)
 169             )
 170
 171         for glyph in action.get_glyphs():
 172             img = resources.get_image(
 173                 glyph, transforms=(EIGHT_BIT, blender(PALETTE.GREY)))
 174             self.surface.blit(img, (glyphs_x_offset, glyphs_y_offset - 4))
 175             glyphs_x_offset += img.get_width()
 176         if action.get_msb_glyph() is not None:
 177             img = resources.get_image(
 178                 action.get_msb_glyph(),
 179                 transforms=(EIGHT_BIT, blender(PALETTE.LIGHT_VIOLET)))
 180             self.surface.blit(img, (glyphs_x_offset, glyphs_y_offset - 4))
 181
 182         return y_offset + text.surface.get_rect().height + 16
 183
 184     def set_position(self, position):
 185         self.card_position = position
 186         self.card = self.state.board_locations[self.card_position]
 187         if self.state.gameboard.player_mode == ACT:
 188             if self.chosen is None:
 189                 self.chosen = 0
 190         else:
 191             self.chosen = None
 192
 193     def draw(self, surface):
 194         self.flash_count += 1
 195         if self.flash_count >= (constants.FPS // 2):
 196             self.flash_light = not self.flash_light
 197             self.flash_count = 0
 198             self.prepare()
 199         surface.blit(self.surface, self.pos)
 200
 201     def next_action(self, viable_only=False, step=1):
 202         num_actions = len(self.card.actions)
 203         if num_actions == 0:
 204             return
 205         player = self.state.player
 206         chosen = self.chosen
 207         for i in range(num_actions - 1):
 208             # loop through each action at most once.
 209             chosen = (chosen + step) % num_actions
 210             action = self.card.actions[chosen]
 211             if not viable_only or action.check_available(player):
 212                 sound.play_sound('zoop.ogg', volume=0.05)
 213                 self.chosen = chosen
 214
 215     def prev_action(self, viable_only=False):
 216         return self.next_action(viable_only=viable_only, step=-1)
 217
 218     def try_perform_action(self):
 219         player = self.state.player
 220         action = self.card.actions[self.chosen]
 221         if not action.check_available(player):
 222             sound.play_sound('error.ogg')
 223         else:
 224             sound.play_sound('chirp.ogg', volume=0.5)
 225             action.perform_action(self.state.gameboard, self.card)
 226             self.state.gameboard.card_used(player.position)
 227             self.state.gameboard.change_mode(EXAMINE)
 228             self.set_position(player.position)
 229
 230     def handle_event(self, ev):
 231         if self.state.gameboard.player_mode == EXAMINE:
 232             return super(InfoAreaWidget, self).handle_event(ev)
 233         if ev.type == pgl.KEYDOWN:
 234             if ev.key in KEYS.SELECT:
 235                 self.try_perform_action()
 236                 return finish_event()
 237             if ev.key in KEYS.UP:
 238                 self.next_action()
 239                 return finish_event()
 240             if ev.key in KEYS.DOWN:
 241                 self.prev_action()
 242                 return finish_event()
 243             if ev.key in KEYS.SWITCH:
 244                 self.next_action(viable_only=True)
 245                 return finish_event()
 246         return super(InfoAreaWidget, self).handle_event(ev)