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