X-Git-Url: https://plomlompom.com/repos/?p=plomrogue2-experiments;a=blobdiff_plain;f=server.py;h=cb9150b8d6e05a00993f6c4073057db350d8f8bc;hp=e17b3e68a7b5f24564ff0bc2a19e56b44fbba81f;hb=HEAD;hpb=6c2138deeea000ebb531203445fa22c1f7a6f0da diff --git a/server.py b/server.py index e17b3e6..cb9150b 100755 --- a/server.py +++ b/server.py @@ -1,150 +1,14 @@ #!/usr/bin/env python3 import sys import os -import parser import server_.game -import server_.io -import game_common - - -def fib(n): - """Calculate n-th Fibonacci number. Very inefficiently.""" - if n in (1, 2): - return 1 - else: - return fib(n-1) + fib(n-2) - - -class CommandHandler(server_.game.Commander): - - 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 quote(self, 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) - - def handle_input(self, input_, connection_id=None, store=True): - """Process input_ to command grammar, call command handler if found.""" - from inspect import signature - - def answer(connection_id, msg): - if connection_id: - self.send(msg, connection_id) - else: - print(msg) - - try: - command = self.parser.parse(input_) - if command is None: - answer(connection_id, 'UNHANDLED_INPUT') - else: - 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: - answer(connection_id, 'ARGUMENT_ERROR ' + self.quote(str(e))) - except server_.game.GameError as e: - answer(connection_id, 'GAME_ERROR ' + self.quote(str(e))) - - def send(self, msg, connection_id=None): - if connection_id: - self.queues_out[connection_id].put(msg) - else: - for connection_id in self.queues_out: - self.queues_out[connection_id].put(msg) - - def send_gamestate(self, connection_id=None): - """Send out game state data relevant to clients.""" - - 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]) - - self.send('NEW_TURN ' + str(self.world.turn)) - self.send('MAP_SIZE ' + stringify_yx(self.world.map_.size)) - visible_map = self.world.get_player().get_visible_map() - for y in range(self.world.map_.size[0]): - self.send('VISIBLE_MAP_LINE %5s %s' % - (y, self.quote(visible_map.get_line(y)))) - visible_things = self.world.get_player().get_visible_things() - for thing in visible_things: - self.send('THING_TYPE %s %s' % (thing.id_, thing.type_)) - self.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('TURN_FINISHED ' + str(self.world.turn)) - self.world.proceed_to_next_player_turn() - msg = str(self.world.get_player().last_task_result) - self.send('LAST_PLAYER_TASK_RESULT ' + self.quote(msg)) - self.send_gamestate() - - def cmd_FIB(self, numbers, connection_id): - """Reply with n-th Fibonacci numbers, n taken from tokens[1:]. - - Numbers are calculated in parallel as far as possible, using fib(). - A 'CALCULATING …' message is sent to caller before the result. - """ - self.send('CALCULATING …', connection_id) - results = self.pool.map(fib, numbers) - reply = ' '.join([str(r) for r in results]) - self.send(reply, connection_id) - cmd_FIB.argtypes = 'seq:int:nonneg' - - def cmd_INC_P(self, connection_id): - """Increment world.turn, send game turn data to everyone. - - To simulate game processing waiting times, a one second delay between - TURN_FINISHED and NEW_TURN occurs; after NEW_TURN, some expensive - calculations are started as pool processes that need to be finished - until a further INC finishes the turn. - - This is just a demo structure for how the game loop could work when - parallelized. One might imagine a two-step game turn, with a non-action - step determining actor tasks (the AI determinations would take the - place of the fib calculations here), and an action step wherein these - tasks are performed (where now sleep(1) is). - """ - from time import sleep - if self.pool_result is not None: - self.pool_result.wait() - self.send('TURN_FINISHED ' + str(self.world.turn)) - sleep(1) - self.world.turn += 1 - self.send_gamestate() - self.pool_result = self.pool.map_async(fib, (35, 35)) if len(sys.argv) != 2: print('wrong number of arguments, expected one (game file)') exit(1) game_file_name = sys.argv[1] -command_handler = CommandHandler(game_file_name) +game = server_.game.Game(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') @@ -153,19 +17,8 @@ if os.path.exists(game_file_name): lines = f.readlines() for i in range(len(lines)): line = lines[i] - print("FILE INPUT LINE %s: %s" % (i, line), end='') - command_handler.handle_input(line, store=False) + print("FILE INPUT LINE %5s: %s" % (i, line), end='') + game.io.handle_input(line, store=False) else: - command_handler.handle_input('MAP_SIZE Y:5,X:5') - command_handler.handle_input('TERRAIN_LINE 0 "xxxxx"') - command_handler.handle_input('TERRAIN_LINE 1 "x...x"') - command_handler.handle_input('TERRAIN_LINE 2 "x.X.x"') - command_handler.handle_input('TERRAIN_LINE 3 "x...x"') - command_handler.handle_input('TERRAIN_LINE 4 "xxxxx"') - command_handler.handle_input('THING_TYPE 0 human') - command_handler.handle_input('THING_POS 0 Y:3,X:3') - command_handler.handle_input('THING_TYPE 1 monster') - command_handler.handle_input('THING_POS 1 Y:1,X:1') - - -server_.io.run_server_with_io_loop(command_handler) + game.io.handle_input('GEN_WORLD Hex Y:16,X:16 bar') +game.io.run_loop_with_server()