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

   1 from plomrogue.tasks import Task_WAIT, Task_MOVE, Task_WRITE
   2 from plomrogue.errors import GameError
   3 from plomrogue.commands import cmd_ALL, cmd_LOGIN, cmd_QUERY, cmd_PING
   4 from plomrogue.io import GameIO
   5 from plomrogue.misc import quote
   6 from plomrogue.things import Thing, ThingPlayer
   7 from plomrogue.mapping import YX, MapGeometrySquare, Map
   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                       'WRITE': Task_WRITE}
  41         self.map_geometry = MapGeometrySquare(YX(24, 40))
  42         self.commands = {'QUERY': cmd_QUERY,
  43                          'ALL': cmd_ALL,
  44                          'LOGIN': cmd_LOGIN,
  45                          'PING': cmd_PING}
  46         self.thing_type = Thing
  47         self.thing_types = {'player': ThingPlayer}
  48         self.sessions = {}
  49         self.map = Map(self.map_geometry.size)
  50
  51     def get_string_options(self, string_option_type):
  52         import string
  53         if string_option_type == 'direction':
  54             return self.map_geometry.get_directions()
  55         if string_option_type == 'char':
  56             return [c for c in
  57                     string.digits + string.ascii_letters + string.punctuation]
  58         return None
  59
  60     def send_gamestate(self, connection_id=None):
  61         """Send out game state data relevant to clients."""
  62
  63         def send_thing(thing):
  64             self.io.send('THING_POS %s %s' % (thing.id_, t.position))
  65
  66         self.io.send('TURN ' + str(self.turn))
  67         for t in self.things:
  68             send_thing(t)
  69         self.io.send('MAP %s %s' % (self.map_geometry.size, quote(self.map.terrain)))
  70         self.io.send('GAME_STATE_COMPLETE')
  71
  72     def run_tick(self):
  73         to_delete = []
  74         for connection_id in self.sessions:
  75             if not connection_id in self.io.server.clients:
  76                 t = self.get_thing(self.sessions[connection_id], create_unfound=False)
  77                 self.things.remove(t)
  78                 to_delete += [connection_id]
  79         for connection_id in to_delete:
  80             del self.sessions[connection_id]
  81             self.changed = True
  82         for t in [t for t in self.things]:
  83             if t in self.things:
  84                 try:
  85                     t.proceed()
  86                 except GameError as e:
  87                     for connection_id in [c_id for c_id in self.sessions
  88                                           if self.sessions[c_id] == t.id_]:
  89                         self.io.send('GAME_ERROR ' + quote(str(e)), connection_id)
  90         self.turn += 1
  91         if self.changed:
  92             self.send_gamestate()
  93             self.changed = False
  94
  95     def get_command(self, command_name):
  96
  97         def partial_with_attrs(f, *args, **kwargs):
  98             from functools import partial
  99             p = partial(f, *args, **kwargs)
 100             p.__dict__.update(f.__dict__)
 101             return p
 102
 103         def cmd_TASK_colon(task_name, game, *args, connection_id):
 104             if connection_id not in game.sessions:
 105                 raise GameError('Not registered as player.')
 106             t = game.get_thing(game.sessions[connection_id], create_unfound=False)
 107             t.set_next_task(task_name, args)
 108
 109         def task_prefixed(command_name, task_prefix, task_command):
 110             if command_name.startswith(task_prefix):
 111                 task_name = command_name[len(task_prefix):]
 112                 if task_name in self.tasks:
 113                     f = partial_with_attrs(task_command, task_name, self)
 114                     task = self.tasks[task_name]
 115                     f.argtypes = task.argtypes
 116                     return f
 117             return None
 118
 119         command = task_prefixed(command_name, 'TASK:', cmd_TASK_colon)
 120         if command:
 121             return command
 122         if command_name in self.commands:
 123             f = partial_with_attrs(self.commands[command_name], self)
 124             return f
 125         return None
 126
 127     def new_thing_id(self):
 128         if len(self.things) == 0:
 129             return 0
 130         # DANGEROUS – if anywhere we append a thing to the list of lower
 131         # ID than the highest-value ID, this might lead to re-using an
 132         # already active ID.  This condition /should/ not be fulfilled
 133         # anywhere in the code, but if it does, trouble here is one of
 134         # the more obvious indicators that it does – that's why there's
 135         # no safeguard here against this.
 136         return self.things[-1].id_ + 1