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

   1 from plomrogue.tasks import (Task_WAIT, Task_MOVE, Task_WRITE,
   2                              Task_FLATTEN_SURROUNDINGS)
   3 from plomrogue.errors import GameError
   4 from plomrogue.commands import (cmd_ALL, cmd_LOGIN, cmd_QUERY, cmd_PING,
   5                                 cmd_TURN, cmd_MAP_LINE)
   6 from plomrogue.io import GameIO
   7 from plomrogue.misc import quote
   8 from plomrogue.things import Thing, ThingPlayer
   9 from plomrogue.mapping import YX, MapGeometrySquare, Map
  10
  11
  12
  13 class GameBase:
  14
  15     def __init__(self):
  16         pass
  17         self.turn = 0
  18         self.things = []
  19
  20     def get_thing(self, id_, create_unfound):
  21         # No default for create_unfound because every call to get_thing
  22         # should be accompanied by serious consideration whether to use it.
  23         for thing in self.things:
  24             if id_ == thing.id_:
  25                 return thing
  26         if create_unfound:
  27             t = self.thing_type(self, id_)
  28             self.things += [t]
  29             return t
  30         return None
  31
  32
  33
  34 class Game(GameBase):
  35
  36     def __init__(self, save_file, *args, **kwargs):
  37         import os
  38         super().__init__(*args, **kwargs)
  39         self.changed = True
  40         self.io = GameIO(self, save_file)
  41         self.tasks = {'WAIT': Task_WAIT,
  42                       'MOVE': Task_MOVE,
  43                       'WRITE': Task_WRITE,
  44                       'FLATTEN_SURROUNDINGS': Task_FLATTEN_SURROUNDINGS}
  45         self.map_geometry = MapGeometrySquare(YX(24, 40))
  46         self.commands = {'QUERY': cmd_QUERY,
  47                          'ALL': cmd_ALL,
  48                          'LOGIN': cmd_LOGIN,
  49                          'TURN': cmd_TURN,
  50                          'MAP_LINE': cmd_MAP_LINE,
  51                          'PING': cmd_PING}
  52         self.thing_type = Thing
  53         self.thing_types = {'player': ThingPlayer}
  54         self.sessions = {}
  55         self.map = Map(self.map_geometry.size)
  56         if os.path.exists(self.io.save_file):
  57             if not os.path.isfile(self.io.save_file):
  58                 raise GameError('save file path refers to non-file')
  59             else:
  60                 with open(self.io.save_file, 'r') as f:
  61                     lines = f.readlines()
  62                 for i in range(len(lines)):
  63                     line = lines[i]
  64                     print("FILE INPUT LINE %5s: %s" % (i, line), end='')
  65                     self.io.handle_input(line)
  66
  67     def get_string_options(self, string_option_type):
  68         import string
  69         if string_option_type == 'direction':
  70             return self.map_geometry.get_directions()
  71         if string_option_type == 'char':
  72             return [c for c in
  73                     string.digits + string.ascii_letters + string.punctuation]
  74         return None
  75
  76     def send_gamestate(self, connection_id=None):
  77         """Send out game state data relevant to clients."""
  78
  79         def send_thing(thing):
  80             self.io.send('THING_POS %s %s' % (thing.id_, t.position))
  81
  82         self.io.send('TURN ' + str(self.turn))
  83         for t in self.things:
  84             send_thing(t)
  85         self.io.send('MAP %s %s' % (self.map_geometry.size, quote(self.map.terrain)))
  86         self.io.send('GAME_STATE_COMPLETE')
  87
  88     def run_tick(self):
  89         to_delete = []
  90         for connection_id in self.sessions:
  91             if not connection_id in self.io.server.clients:
  92                 t = self.get_thing(self.sessions[connection_id], create_unfound=False)
  93                 self.things.remove(t)
  94                 to_delete += [connection_id]
  95         for connection_id in to_delete:
  96             del self.sessions[connection_id]
  97             self.changed = True
  98         for t in [t for t in self.things]:
  99             if t in self.things:
 100                 try:
 101                     t.proceed()
 102                 except GameError as e:
 103                     for connection_id in [c_id for c_id in self.sessions
 104                                           if self.sessions[c_id] == t.id_]:
 105                         self.io.send('GAME_ERROR ' + quote(str(e)), connection_id)
 106         if self.changed:
 107             self.turn += 1
 108             self.send_gamestate()
 109             self.changed = False
 110             self.save()
 111
 112     def get_command(self, command_name):
 113
 114         def partial_with_attrs(f, *args, **kwargs):
 115             from functools import partial
 116             p = partial(f, *args, **kwargs)
 117             p.__dict__.update(f.__dict__)
 118             return p
 119
 120         def cmd_TASK_colon(task_name, game, *args, connection_id):
 121             if connection_id not in game.sessions:
 122                 raise GameError('Not registered as player.')
 123             t = game.get_thing(game.sessions[connection_id], create_unfound=False)
 124             t.set_next_task(task_name, args)
 125
 126         def task_prefixed(command_name, task_prefix, task_command):
 127             if command_name.startswith(task_prefix):
 128                 task_name = command_name[len(task_prefix):]
 129                 if task_name in self.tasks:
 130                     f = partial_with_attrs(task_command, task_name, self)
 131                     task = self.tasks[task_name]
 132                     f.argtypes = task.argtypes
 133                     return f
 134             return None
 135
 136         command = task_prefixed(command_name, 'TASK:', cmd_TASK_colon)
 137         if command:
 138             return command
 139         if command_name in self.commands:
 140             f = partial_with_attrs(self.commands[command_name], self)
 141             return f
 142         return None
 143
 144     def new_thing_id(self):
 145         if len(self.things) == 0:
 146             return 0
 147         # DANGEROUS – if anywhere we append a thing to the list of lower
 148         # ID than the highest-value ID, this might lead to re-using an
 149         # already active ID.  This condition /should/ not be fulfilled
 150         # anywhere in the code, but if it does, trouble here is one of
 151         # the more obvious indicators that it does – that's why there's
 152         # no safeguard here against this.
 153         return self.things[-1].id_ + 1
 154
 155     def save(self):
 156
 157       def write(f, msg):
 158           f.write(msg + '\n')
 159
 160       with open(self.io.save_file, 'w') as f:
 161           write(f, 'TURN %s' % self.turn)
 162           for y, line in self.map.lines():
 163               write(f, 'MAP_LINE %5s %s' % (y, quote(line)))