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