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