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annotate nagslang/world.py @ 373:8c7c5db5f0d3

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Change the flavour of magic in World
author Stefano Rivera <stefano@rivera.za.net>
date Fri, 06 Sep 2013 22:33:51 +0200
parents 282113d86d75
children 150332d6c1fb
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1 # The world object
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2 #
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3 # This is a global object for tracking state across scenes and all that
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4
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5 import os
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6 import sys
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7
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8 import pymunk
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9
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10 from nagslang.level import Level
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11 from nagslang.protagonist import Protagonist
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12 from nagslang.yamlish import dump, load
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13
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14
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15 class World(object):
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16
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17 def __init__(self):
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18 self.reset()
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19
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20 def reset(self):
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21 first_level = Level.list_levels()[0]
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22 starting_position = (350, 300)
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23 self.__dict__['_data'] = {
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24 'attacks': 0,
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25 'transformations': 0,
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26 'kills': 0,
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27 'rooms': 0,
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28 'protagonist': Protagonist(pymunk.Space(), self,
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29 starting_position),
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30 'level': (first_level, starting_position),
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31 'level_state': {},
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32 }
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33
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34 def __getattr__(self, name):
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35 try:
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36 return self._data[name]
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37 except KeyError:
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38 raise AttributeError()
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39
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40 def __setattr__(self, name, value):
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41 if name not in self._data:
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42 raise AttributeError("Worlds don't have a %s property" % name)
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43 self._data[name] = value
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44
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45 def _save_location(self):
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46 app = 'nagslang'
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47 if sys.platform.startswith('win'):
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48 if 'APPDATA' in os.environ:
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49 return os.path.join(os.environ['APPDATA'], app)
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50 return os.path.join(os.path.expanduser('~'), '.' + app)
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51 elif 'XDG_DATA_HOME' in os.environ:
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52 return os.path.join(os.environ['XDG_DATA_HOME'], app)
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53 return os.path.join(os.path.expanduser('~'), '.local', 'share', app)
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54
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55 def save(self):
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56 data = self._data.copy()
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57 data['inventory'] = sorted(data.pop('protagonist').inventory)
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58 fn = self._save_location()
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59 if not os.path.isdir(os.path.dirname(fn)):
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60 os.makedirs(os.path.dirname(fn))
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61 with open(fn, 'w') as f:
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62 dump(data, f)
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63
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64 def load(self):
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65 fn = self._save_location()
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66 if not os.path.exists(fn):
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67 return False
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68 with open(fn) as f:
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69 data = load(f)
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70 self.protagonist.inventory = set(data.pop('inventory', []))
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71 for k, v in data.iteritems():
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72 setattr(self, k, v)
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73 return True
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74
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75 def get_formatted_stats(self):
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76 return "\n".join([
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77 "Times transformed: %d" % self.transformations,
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78 "Enemies killed: %d" % self.kills,
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79 "Rooms entered: %d" % self.rooms
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80 ])