plomlompom.com Git - plomrogue2-experiments/blob - new2/plomrogue/game.py

   1 from plomrogue.tasks import Task_WAIT, Task_MOVE
   2 from plomrogue.errors import GameError
   3 from plomrogue.commands import cmd_ALL, cmd_LOGIN, cmd_QUERY
   4 from plomrogue.io import GameIO
   5 from plomrogue.misc import quote
   6 from plomrogue.things import Thing, ThingPlayer
   7
   8
   9
  10 class GameBase:
  11
  12     def __init__(self):
  13         pass
  14         self.turn = 0
  15         self.things = []
  16
  17     def get_thing(self, id_, create_unfound):
  18         # No default for create_unfound because every call to get_thing
  19         # should be accompanied by serious consideration whether to use it.
  20         for thing in self.things:
  21             if id_ == thing.id_:
  22                 return thing
  23         if create_unfound:
  24             t = self.thing_type(self, id_)
  25             self.things += [t]
  26             return t
  27         return None
  28
  29
  30
  31 class Game(GameBase):
  32
  33     def __init__(self, *args, **kwargs):
  34         super().__init__(*args, **kwargs)
  35         self.changed = True
  36         self.io = GameIO(self)
  37         self.tasks = {'WAIT': Task_WAIT,
  38                       'MOVE': Task_MOVE}
  39         self.commands = {'QUERY': cmd_QUERY, 'ALL': cmd_ALL, 'LOGIN': cmd_LOGIN}
  40         self.thing_type = Thing
  41         self.thing_types = {'player': ThingPlayer}
  42         self.sessions = {}
  43
  44     def get_string_options(self, string_option_type):
  45         if string_option_type == 'direction':
  46             return ['UP', 'DOWN', 'LEFT', 'RIGHT']
  47         return None
  48
  49     def send_gamestate(self, connection_id=None):
  50         """Send out game state data relevant to clients."""
  51
  52         def send_thing(thing):
  53             self.io.send('THING_POS %s %s' % (thing.id_, t.position))
  54
  55         self.io.send('TURN ' + str(self.turn))
  56         for t in self.things:
  57             send_thing(t)
  58
  59     def run_tick(self):
  60         to_delete = []
  61         for connection_id in self.sessions:
  62             if not connection_id in self.io.server.clients:
  63                 t = self.get_thing(self.sessions[connection_id], create_unfound=False)
  64                 self.things.remove(t)
  65                 to_delete += [connection_id]
  66         for connection_id in to_delete:
  67             del self.sessions[connection_id]
  68             self.changed = True
  69         for t in [t for t in self.things]:
  70             if t in self.things:
  71                 try:
  72                     t.proceed()
  73                 except GameError as e:
  74                     for connection_id in [c_id for c_id in self.sessions
  75                                           if self.sessions[c_id] == t.id_]:
  76                         self.io.send('GAME_ERROR ' + quote(str(e)), connection_id)
  77         self.turn += 1
  78         if self.changed:
  79             self.send_gamestate()
  80             self.changed = False
  81
  82     def get_command(self, command_name):
  83
  84         def partial_with_attrs(f, *args, **kwargs):
  85             from functools import partial
  86             p = partial(f, *args, **kwargs)
  87             p.__dict__.update(f.__dict__)
  88             return p
  89
  90         def cmd_TASK_colon(task_name, game, *args, connection_id):
  91             if connection_id not in game.sessions:
  92                 raise GameError('Not registered as player.')
  93             t = game.get_thing(game.sessions[connection_id], create_unfound=False)
  94             t.set_next_task(task_name, args)
  95
  96         def task_prefixed(command_name, task_prefix, task_command):
  97             if command_name.startswith(task_prefix):
  98                 task_name = command_name[len(task_prefix):]
  99                 if task_name in self.tasks:
 100                     f = partial_with_attrs(task_command, task_name, self)
 101                     task = self.tasks[task_name]
 102                     f.argtypes = task.argtypes
 103                     return f
 104             return None
 105
 106         command = task_prefixed(command_name, 'TASK:', cmd_TASK_colon)
 107         if command:
 108             return command
 109         if command_name in self.commands:
 110             f = partial_with_attrs(self.commands[command_name], self)
 111             return f
 112         return None
 113
 114     def new_thing_id(self):
 115         if len(self.things) == 0:
 116             return 0
 117         # DANGEROUS – if anywhere we append a thing to the list of lower
 118         # ID than the highest-value ID, this might lead to re-using an
 119         # already active ID.  This condition /should/ not be fulfilled
 120         # anywhere in the code, but if it does, trouble here is one of
 121         # the more obvious indicators that it does – that's why there's
 122         # no safeguard here against this.
 123         return self.things[-1].id_ + 1