annotate pyntnclick/main.py @ 599:2d2ea51b73ad pyntnclick

Move menu.py and endscreen.py to gamelib. Add default versions for new games
author Neil Muller <neil@dip.sun.ac.za>
date Sat, 11 Feb 2012 18:46:19 +0200
parents c1b5e982809b
children fabce47e542f
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1 '''Game main module.
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2
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3 Contains the entry point used by the run_game.py script.
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4
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5 '''
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6
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7 # Albow looks for stuff in os.path[0], which isn't always where it expects.
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8 # The following horribleness fixes this.
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9 import sys
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10 import os.path
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11 right_path = os.path.dirname(os.path.dirname(__file__))
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12 sys.path.insert(0, right_path)
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13 from optparse import OptionParser
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14
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15 import pygame
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16 from pygame.locals import SWSURFACE
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17 from albow.shell import Shell
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18
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19 from pyntnclick.gamescreen import GameScreen, DefMenuScreen, DefEndScreen
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20 from pyntnclick.constants import GameConstants, DEBUG_ENVVAR
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21 from pyntnclick.resources import Resources
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22 from pyntnclick.sound import Sound
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23 from pyntnclick import state
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24
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25 from pyntnclick.tools.rect_drawer import RectApp, make_rect_display
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26 from pyntnclick.tools.utils import list_scenes
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27
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28
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29 class MainShell(Shell):
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30 # Should we allow the menu not to be the opening screen?
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31 def __init__(self, display, game_description, menu_screen, end_screen):
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32 Shell.__init__(self, display)
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33 if menu_screen:
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34 self.menu_screen = menu_screen(self, game_description)
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35 else:
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36 self.menu_screen = DefMenuScreen(self, game_description)
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37 self.game_screen = GameScreen(self, game_description)
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38 if end_screen:
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39 self.end_screen = end_screen(self, game_description)
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40 else:
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41 self.end_screen = DefEndScreen(self, game_description)
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42 self.set_timer(game_description.constants.frame_rate)
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43 self.show_screen(self.menu_screen)
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44
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45
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46 class GameDescriptionError(Exception):
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47 """Raised when an GameDescription is invalid."""
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48
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49
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50 class GameDescription(object):
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51
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52 # initial scene for start of game (unless overridden by debug)
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53 INITIAL_SCENE = None
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54
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55 # list of game scenes
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56 SCENE_LIST = None
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57
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58 # starting menu
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59 MENU_SCREEN = None
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60
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61 # game over screen
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62 END_SCREEN = None
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63
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64
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65 # resource module
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66 RESOURCE_MODULE = "Resources"
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67
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68 def __init__(self):
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69 if self.INITIAL_SCENE is None:
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70 raise GameDescriptionError("A game must have an initial scene.")
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71 if not self.SCENE_LIST:
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72 raise GameDescriptionError("A game must have a non-empty list"
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73 " of scenes.")
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74 self._initial_scene = self.INITIAL_SCENE
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75 self._scene_list = self.SCENE_LIST
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76 self._resource_module = self.RESOURCE_MODULE
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77 self._debug_rects = False
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78 self.resource = Resources(self._resource_module)
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79 self.sound = Sound(self.resource)
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80 self.constants = self.game_constants()
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81 self.debug_options = []
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82
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83 def initial_state(self):
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84 """Create a copy of the initial game state."""
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85 initial_state = state.GameState(self)
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86 initial_state.set_debug_rects(self._debug_rects)
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87 for scene in self._scene_list:
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88 initial_state.load_scenes(scene)
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89 initial_state.set_current_scene(self._initial_scene)
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90 initial_state.set_do_enter_leave()
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91 return initial_state
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92
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93 def game_constants(self):
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94 return GameConstants()
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95
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96 def option_parser(self):
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97 parser = OptionParser()
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98 parser.add_option("--no-sound", action="store_false", default=True,
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99 dest="sound", help="disable sound")
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100 # We flag these, so we can warn the user that these require debug mode
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101 self.debug_options = ['--scene', '--no-rects', '--rect-drawer',
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102 '--list-scenes', '--details']
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103 if self.constants.debug:
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104 parser.add_option("--scene", type="str", default=None,
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105 dest="scene", help="initial scene")
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106 parser.add_option("--no-rects", action="store_false", default=True,
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107 dest="rects", help="disable debugging rects")
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108 parser.add_option("--rect-drawer", action="store_true",
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109 default=False, dest="rect_drawer",
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110 help="Launch the rect drawing helper tool. Specify the"
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111 " scene with --scene")
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112 parser.add_option("--list-scenes", action="store_true",
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113 default=False, dest='list_scenes', help="List all scenes"
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114 " that can be used with --scene and exit.")
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115 parser.add_option("--detail", type="str", default=None,
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116 dest="detail", help="Detailed view for rect_drawer")
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117 return parser
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118
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119 def warn_debug(self, option):
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120 """Warn the user that he needs debug mode"""
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121 print '%s is only valid in debug mode' % option
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122 print 'set %s to enable debug mode' % DEBUG_ENVVAR
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123 print
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124
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125 def main(self):
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126 parser = self.option_parser()
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127 # This is a bit hack'ish, but works
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128 if not self.constants.debug:
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129 for option in self.debug_options:
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130 if option in sys.argv:
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131 self.warn_debug(option)
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132 opts, _ = parser.parse_args(sys.argv)
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133 pygame.display.init()
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134 pygame.font.init()
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135 if opts.sound:
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136 self.sound.enable_sound(self.constants)
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137 else:
564
2f7aa3cad77c Sound hackery
Neil Muller <neil@dip.sun.ac.za>
parents: 560
diff changeset
138 self.sound.disable_sound()
576
1b1ab71535bd Classify constants, which involves a whole bunch of XXX comments
Stefano Rivera <stefano@rivera.za.net>
parents: 570
diff changeset
139 if self.constants.debug:
554
99a1420097df Create GameDescription object.
Simon Cross <hodgestar+bzr@gmail.com>
parents: 553
diff changeset
140 if opts.scene is not None:
99a1420097df Create GameDescription object.
Simon Cross <hodgestar+bzr@gmail.com>
parents: 553
diff changeset
141 # debug the specified scene
99a1420097df Create GameDescription object.
Simon Cross <hodgestar+bzr@gmail.com>
parents: 553
diff changeset
142 self._initial_scene = opts.scene
99a1420097df Create GameDescription object.
Simon Cross <hodgestar+bzr@gmail.com>
parents: 553
diff changeset
143 self._debug_rects = opts.rects
590
a77dd4619176 Fix to work when debug is not enabled
Neil Muller <neil@dip.sun.ac.za>
parents: 589
diff changeset
144 if self.constants.debug and opts.list_scenes:
589
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
145 # FIXME: Horrible hack to avoid image loading issues for
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
146 # now
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
147 display = pygame.display.set_mode(self.constants.screen,
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
148 SWSURFACE)
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
149 list_scenes(self.initial_state)
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
150 sys.exit(0)
590
a77dd4619176 Fix to work when debug is not enabled
Neil Muller <neil@dip.sun.ac.za>
parents: 589
diff changeset
151 if self.constants.debug and opts.rect_drawer:
589
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
152 if opts.scene is None:
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
153 print 'Need to supply a scene to use the rect drawer'
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
154 sys.exit(1)
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
155 display = make_rect_display()
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
156 try:
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
157 shell = RectApp(display, self.initial_state, opts.scene,
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
158 opts.detail)
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
159 except KeyError:
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
160 print 'Invalid scene: %s' % opts.scene
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
161 sys.exit(1)
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
162 else:
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
163 display = pygame.display.set_mode(self.constants.screen,
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
164 SWSURFACE)
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
165 pygame.display.set_icon(self.resource.get_image(
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
166 'suspended_sentence24x24.png', basedir='icons'))
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
167 pygame.display.set_caption("Suspended Sentence")
ebc48b397fd5 Turn rect_drawer into a command line option
Neil Muller <neil@dip.sun.ac.za>
parents: 587
diff changeset
168
599
2d2ea51b73ad Move menu.py and endscreen.py to gamelib. Add default versions for new games
Neil Muller <neil@dip.sun.ac.za>
parents: 598
diff changeset
169 shell = MainShell(display, self, self.MENU_SCREEN,
2d2ea51b73ad Move menu.py and endscreen.py to gamelib. Add default versions for new games
Neil Muller <neil@dip.sun.ac.za>
parents: 598
diff changeset
170 self.END_SCREEN)
107
5213b45fcc7e Initial event sound support
Neil Muller <neil@dip.sun.ac.za>
parents: 105
diff changeset
171 try:
554
99a1420097df Create GameDescription object.
Simon Cross <hodgestar+bzr@gmail.com>
parents: 553
diff changeset
172 shell.run()
99a1420097df Create GameDescription object.
Simon Cross <hodgestar+bzr@gmail.com>
parents: 553
diff changeset
173 except KeyboardInterrupt:
99a1420097df Create GameDescription object.
Simon Cross <hodgestar+bzr@gmail.com>
parents: 553
diff changeset
174 pass