import socketserver
import threading
import queue
-from parser import ArgError, Parser
-from server_.game import World, GameError
+import sys
+import os
+import parser
+import server_.game
+import game_common
# Avoid "Address already in use" errors.
return fib(n-1) + fib(n-2)
-class CommandHandler:
+class CommandHandler(game_common.Commander, server_.game.Commander):
- def __init__(self, queues_out):
- from multiprocessing import Pool
- self.queues_out = queues_out
- self.world = World()
- self.parser = Parser(self)
+ def __init__(self, game_file_name):
+ self.queues_out = {}
+ self.world = server_.game.World()
+ self.parser = parser.Parser(self)
+ self.game_file_name = game_file_name
# self.pool and self.pool_result are currently only needed by the FIB
# command and the demo of a parallelized game loop in cmd_inc_p.
+ from multiprocessing import Pool
self.pool = Pool()
self.pool_result = None
- def handle_input(self, input_, connection_id):
+ def handle_input(self, input_, connection_id=None, store=True):
"""Process input_ to command grammar, call command handler if found."""
+ from inspect import signature
try:
command = self.parser.parse(input_)
if command is None:
self.send_to(connection_id, 'UNHANDLED INPUT')
else:
- command(connection_id=connection_id)
- except ArgError as e:
+ if 'connection_id' in list(signature(command).parameters):
+ command(connection_id=connection_id)
+ else:
+ command()
+ if store:
+ with open(self.game_file_name, 'a') as f:
+ f.write(input_ + '\n')
+ except parser.ArgError as e:
self.send_to(connection_id, 'ARGUMENT ERROR: ' + str(e))
- except GameError as e:
+ except server_.game.GameError as e:
self.send_to(connection_id, 'GAME ERROR: ' + str(e))
def send_to(self, connection_id, msg):
- """Send msg to client of connection_id."""
- self.queues_out[connection_id].put(msg)
+ """Send msg to client of connection_id; if no later, print instead."""
+ if connection_id:
+ self.queues_out[connection_id].put(msg)
+ else:
+ print(msg)
def send_all(self, msg):
"""Send msg to all clients."""
for connection_id in self.queues_out:
self.send_to(connection_id, msg)
- def stringify_yx(self, tuple_):
- """Transform tuple (y,x) into string 'Y:'+str(y)+',X:'+str(x)."""
- return 'Y:' + str(tuple_[0]) + ',X:' + str(tuple_[1])
-
- def quoted(self, string):
- """Quote and escape string so client interprets it as single token."""
- quoted = []
- quoted += ['"']
- for c in string:
- if c in {'"', '\\'}:
- quoted += ['\\']
- quoted += [c]
- quoted += ['"']
- return ''.join(quoted)
-
- def quoted_map(self, map_string, map_width):
- """Put \n into map_string at map_width intervals, return quoted whole."""
- map_lines = []
- map_size = len(map_string)
- start_cut = 0
- while start_cut < map_size:
- limit = start_cut + map_width
- map_lines += [map_string[start_cut:limit]]
- start_cut = limit
- return self.quoted("\n".join(map_lines))
-
- def send_all_gamestate(self):
+ def send_gamestate(self, connection_id=None):
"""Send out game state data relevant to clients."""
- self.send_all('NEW_TURN ' + str(self.world.turn))
- self.send_all('MAP_SIZE ' + self.stringify_yx(self.world.map_size))
- self.send_all('TERRAIN\n' + self.quoted_map(self.world.map_,
- self.world.map_size[1]))
+ from functools import partial
+
+ def stringify_yx(tuple_):
+ """Transform tuple (y,x) into string 'Y:'+str(y)+',X:'+str(x)."""
+ return 'Y:' + str(tuple_[0]) + ',X:' + str(tuple_[1])
+
+ def quoted(string):
+ """Quote & escape string so client interprets it as single token."""
+ quoted = []
+ quoted += ['"']
+ for c in string:
+ if c in {'"', '\\'}:
+ quoted += ['\\']
+ quoted += [c]
+ quoted += ['"']
+ return ''.join(quoted)
+
+ send=self.send_all
+ if connection_id:
+ send=partial(self.send_to, connection_id)
+ send('NEW_TURN ' + str(self.world.turn))
+ send('MAP_SIZE ' + stringify_yx(self.world.map_size))
+ for y in range(self.world.map_size[0]):
+ width = self.world.map_size[1]
+ terrain_line = self.world.terrain_map[y * width:(y + 1) * width]
+ send('TERRAIN_LINE %5s %s' % (y, quoted(terrain_line)))
for thing in self.world.things:
- self.send_all('THING TYPE:' + thing.type_ + ' '
- + self.stringify_yx(thing.position))
-
- def proceed_to_next_player_turn(self, connection_id):
- """Run game world turns until player can decide their next step.
-
- Sends a 'TURN_FINISHED' message, then iterates through all non-player
- things, on each step furthering them in their tasks (and letting them
- decide new ones if they finish). The iteration order is: first all
- things that come after the player in the world things list, then (after
- incrementing the world turn) all that come before the player; then the
- player's .proceed() is run, and if it does not finish his task, the
- loop starts at the beginning. Once the player's task is finished, the
- loop breaks, and client-relevant game data is sent.
+ send('THING_TYPE %s %s' % (thing.id_, thing.type_))
+ send('THING_POS %s %s' % (thing.id_,
+ stringify_yx(thing.position)))
+
+ def proceed(self):
+ """Send turn finish signal, run game world, send new world data.
+
+ First sends 'TURN_FINISHED' message, then runs game world
+ until new player input is needed, then sends game state.
"""
self.send_all('TURN_FINISHED ' + str(self.world.turn))
- while True:
- for thing in self.world.things[self.world.player_i+1:]:
- thing.proceed()
- self.world.turn += 1
- for thing in self.world.things[:self.world.player_i]:
- thing.proceed()
- self.world.player.proceed(is_AI=False)
- if self.world.player.task is None:
- break
- self.send_all_gamestate()
-
- def cmd_MOVE(self, direction, connection_id):
- """Set player task to 'move' with direction arg, finish player turn."""
- if direction not in {'UP', 'DOWN', 'RIGHT', 'LEFT'}:
- raise ArgError('Move argument must be one of: '
- 'UP, DOWN, RIGHT, LEFT')
- self.world.player.set_task('move', direction=direction)
- self.proceed_to_next_player_turn(connection_id)
- cmd_MOVE.argtypes = 'string'
-
- def cmd_WAIT(self, connection_id):
- """Set player task to 'wait', finish player turn."""
- self.world.player.set_task('wait')
- self.proceed_to_next_player_turn(connection_id)
-
- def cmd_GET_TURN(self, connection_id):
- """Send world.turn to caller."""
- self.send_to(connection_id, str(self.world.turn))
-
- def cmd_ECHO(self, msg, connection_id):
- """Send msg to caller."""
- self.send_to(connection_id, msg)
- cmd_ECHO.argtypes = 'string'
-
- def cmd_ALL(self, msg, connection_id):
- """Send msg to all clients."""
- self.send_all(msg)
- cmd_ALL.argtypes = 'string'
+ self.world.proceed_to_next_player_turn()
+ msg = str(self.world.get_player().last_task_result)
+ self.send_all('LAST_PLAYER_TASK_RESULT ' + msg)
+ self.send_gamestate()
def cmd_FIB(self, numbers, connection_id):
"""Reply with n-th Fibonacci numbers, n taken from tokens[1:].
self.send_all('TURN_FINISHED ' + str(self.world.turn))
sleep(1)
self.world.turn += 1
- self.send_all_gamestate()
+ self.send_gamestate()
self.pool_result = self.pool.map_async(fib, (35, 35))
-def io_loop(q):
+def io_loop(q, commander):
"""Handle commands coming through queue q, send results back.
Commands from q are expected to be tuples, with the first element either
which to send replies.
A 'COMMAND' command is specified in greater detail by a string that is the
- tuple's third element. CommandHandler takes care of processing this and
- sending out replies.
+ tuple's third element. The commander CommandHandler takes care of processing
+ this and sending out replies.
"""
- queues_out = {}
- command_handler = CommandHandler(queues_out)
while True:
x = q.get()
command_type = x[0]
connection_id = x[1]
content = None if len(x) == 2 else x[2]
if command_type == 'ADD_QUEUE':
- queues_out[connection_id] = content
+ commander.queues_out[connection_id] = content
elif command_type == 'COMMAND':
- command_handler.handle_input(content, connection_id)
+ commander.handle_input(content, connection_id)
elif command_type == 'KILL_QUEUE':
- del queues_out[connection_id]
+ del commander.queues_out[connection_id]
+if len(sys.argv) != 2:
+ print('wrong number of arguments, expected one (game file)')
+ exit(1)
+game_file_name = sys.argv[1]
+commander = CommandHandler(game_file_name)
+if os.path.exists(game_file_name):
+ if not os.path.isfile(game_file_name):
+ print('game file name does not refer to a valid game file')
+ else:
+ with open(game_file_name, 'r') as f:
+ lines = f.readlines()
+ for i in range(len(lines)):
+ line = lines[i]
+ print("FILE INPUT LINE %s: %s" % (i, line), end='')
+ commander.handle_input(line, store=False)
+else:
+ commander.handle_input('MAP_SIZE Y:5,X:5')
+ commander.handle_input('TERRAIN_LINE 0 "xxxxx"')
+ commander.handle_input('TERRAIN_LINE 1 "x...x"')
+ commander.handle_input('TERRAIN_LINE 2 "x.X.x"')
+ commander.handle_input('TERRAIN_LINE 3 "x...x"')
+ commander.handle_input('TERRAIN_LINE 4 "xxxxx"')
+ commander.handle_input('THING_TYPE 0 human')
+ commander.handle_input('THING_POS 0 Y:3,X:3')
+ commander.handle_input('THING_TYPE 1 monster')
+ commander.handle_input('THING_POS 1 Y:1,X:1')
q = queue.Queue()
-c = threading.Thread(target=io_loop, daemon=True, args=(q,))
+c = threading.Thread(target=io_loop, daemon=True, args=(q, commander))
c.start()
server = Server(q, ('localhost', 5000), IO_Handler)
try:
projects / plomrogue2-experiments / blobdiff