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