Mercurial > pyntnclick

annotate pyntnclick/main.py @ 556:a4f28da12720 pyntnclick

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Move option_parser onto GameDescription so it can be overridden by sub-classes if they lik.
author Simon Cross <hodgestar+bzr@gmail.com>
date Sat, 11 Feb 2012 14:12:11 +0200
parents 99a1420097df
children 28f03563f4db
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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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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.menu import MenuScreen
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20 from pyntnclick.gamescreen import GameScreen
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21 from pyntnclick.endscreen import EndScreen
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22 from pyntnclick.constants import (
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23 SCREEN, FRAME_RATE, FREQ, BITSIZE, CHANNELS, BUFFER, DEBUG)
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24 from pyntnclick.sound import no_sound, disable_sound
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25 from pyntnclick import state, data
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26
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27
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28 class MainShell(Shell):
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29 def __init__(self, display, initial_state):
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30 Shell.__init__(self, display)
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31 self.menu_screen = MenuScreen(self)
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32 self.game_screen = GameScreen(self, initial_state)
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33 self.end_screen = EndScreen(self)
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34 self.set_timer(FRAME_RATE)
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35 self.show_screen(self.menu_screen)
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36
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38 class GameDescriptionError(Exception):
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39 """Raised when an GameDescription is invalid."""
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40
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41
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42 class GameDescription(object):
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43
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44 # initial scene for start of game (unless overridden by debug)
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45 INITIAL_SCENE = None
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46
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47 # list of game scenes
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48 SCENE_LIST = None
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49
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50 def __init__(self):
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51 if self.INITIAL_SCENE is None:
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52 raise GameDescriptionError("A game must have an initial scene.")
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53 if not self.SCENE_LIST:
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54 raise GameDescriptionError("A game must have a non-empty list"
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55 " of scenes.")
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56 self._initial_scene = self.INITIAL_SCENE
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57 self._scene_list = self.SCENE_LIST
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58 self._debug_rects = False
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59
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60 def initial_state(self):
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61 """Create a copy of the initial game state."""
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62 initial_state = state.GameState()
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63 initial_state.set_debug_rects(self._debug_rects)
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64 for scene in self._scene_list:
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65 initial_state.load_scenes(scene)
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66 initial_state.set_current_scene(self._initial_scene)
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67 initial_state.set_do_enter_leave()
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68 return initial_state
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69
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70 def option_parser(self):
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71 parser = OptionParser()
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72 parser.add_option("--no-sound", action="store_false", default=True,
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73 dest="sound", help="disable sound")
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74 if DEBUG:
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75 parser.add_option("--scene", type="str", default=None,
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76 dest="scene", help="initial scene")
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77 parser.add_option("--no-rects", action="store_false", default=True,
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78 dest="rects", help="disable debugging rects")
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79 return parser
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80
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81 def main(self):
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82 parser = self.option_parser()
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83 opts, _ = parser.parse_args(sys.argv)
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84 pygame.display.init()
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85 pygame.font.init()
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86 if opts.sound:
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87 try:
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88 pygame.mixer.init(FREQ, BITSIZE, CHANNELS, BUFFER)
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89 except pygame.error, exc:
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90 no_sound(exc)
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91 else:
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92 # Ensure get_sound returns nothing, so everything else just works
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93 disable_sound()
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94 if DEBUG:
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95 if opts.scene is not None:
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96 # debug the specified scene
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97 self._initial_scene = opts.scene
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98 self._debug_rects = opts.rects
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99 display = pygame.display.set_mode(SCREEN, SWSURFACE)
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100 pygame.display.set_icon(pygame.image.load(
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101 data.filepath('icons/suspended_sentence24x24.png')))
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102 pygame.display.set_caption("Suspended Sentence")
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103 shell = MainShell(display, self.initial_state)
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104 try:
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105 shell.run()
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106 except KeyboardInterrupt:
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107 pass