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