socketserver.TCPServer.allow_reuse_address = True
+class GameError(Exception):
+ pass
+
+
class Server(socketserver.ThreadingTCPServer):
"""Bind together threaded IO handling server and message queue."""
self.request.close()
+def move_pos(direction, pos_yx):
+ if direction == 'UP':
+ pos_yx[0] -= 1
+ elif direction == 'DOWN':
+ pos_yx[0] += 1
+ elif direction == 'RIGHT':
+ pos_yx[1] += 1
+ elif direction == 'LEFT':
+ pos_yx[1] -= 1
+
+
class Task:
- def __init__(self, name, args=(), kwargs={}):
+ def __init__(self, thing, name, args=(), kwargs={}):
self.name = name
+ self.thing = thing
self.args = args
self.kwargs = kwargs
self.todo = 1
+ def check(self):
+ if self.name == 'move':
+ if len(self.args) > 0:
+ direction = self.args[0]
+ else:
+ direction = self.kwargs['direction']
+ test_pos = self.thing.position[:]
+ move_pos(direction, test_pos)
+ if test_pos[0] < 0 or test_pos[1] < 0 or \
+ test_pos[0] >= self.thing.world.map_size[0] or \
+ test_pos[1] >= self.thing.world.map_size[1]:
+ raise GameError('would move outside map bounds')
+ pos_i = test_pos[0] * self.thing.world.map_size[1] + test_pos[1]
+ map_tile = self.thing.world.map_[pos_i]
+ if map_tile != '.':
+ raise GameError('would move into illegal terrain')
+
class Thing:
- def __init__(self, type_, position):
- self.type = type_
+ def __init__(self, world, type_, position):
+ self.world = world
+ self.type_ = type_
self.position = position
- self.task = Task('wait')
+ self.task = Task(self, 'wait')
def task_wait(self):
pass
def task_move(self, direction):
- if direction == 'UP':
- self.position[0] -= 1
- elif direction == 'DOWN':
- self.position[0] += 1
- elif direction == 'RIGHT':
- self.position[1] += 1
- elif direction == 'LEFT':
- self.position[1] -= 1
+ move_pos(direction, self.position)
def decide_task(self):
if self.position[1] > 1:
self.set_task('wait')
def set_task(self, task, *args, **kwargs):
- self.task = Task(task, args, kwargs)
+ self.task = Task(self, task, args, kwargs)
+ self.task.check()
def proceed(self, is_AI=True):
"""Further the thing in its tasks.
def __init__(self):
self.turn = 0
self.map_size = (5, 5)
- self.map_ = 'xxxxx\n' +\
- 'x...x\n' +\
- 'x.X.x\n' +\
- 'x...x\n' +\
+ self.map_ = 'xxxxx' +\
+ 'x...x' +\
+ 'x.X.x' +\
+ 'x...x' +\
'xxxxx'
- self.things = [Thing('human', [3, 3]), Thing('monster', [1, 1])]
+ self.things = [
+ Thing(self, 'human', [3, 3]),
+ Thing(self, 'monster', [1, 1])
+ ]
self.player_i = 0
self.player = self.things[self.player_i]
self.pool = Pool()
self.pool_result = None
+ def handle_input(self, input_, connection_id):
+ """Process input_ to command grammar, call command handler if found."""
+ 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:
+ self.send_to(connection_id, 'ARGUMENT ERROR: ' + str(e))
+ except 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)
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):
+ """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]))
+ 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.
self.world.player.proceed(is_AI=False)
if self.world.player.task is None:
break
- 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(self.world.map_))
- for thing in self.world.things:
- self.send_all('THING TYPE:' + thing.type + ' '
- + self.stringify_yx(thing.position))
+ 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'
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('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(self.world.map_))
- for thing in self.world.things:
- self.send_all('THING TYPE:' + thing.type + ' '
- + self.stringify_yx(thing.position))
+ self.send_all_gamestate()
self.pool_result = self.pool.map_async(fib, (35, 35))
- def cmd_GET_TURN(self, connection_id):
- """Send world.turn to caller."""
- self.send_to(connection_id, str(self.world.turn))
-
- 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_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'
-
- def handle_input(self, input_, connection_id):
- """Process input_ to command grammar, call command handler if found."""
- 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:
- self.send_to(connection_id, 'ARGUMENT ERROR: ' + str(e))
-
def io_loop(q):
"""Handle commands coming through queue q, send results back.
projects / plomrogue2-experiments / blobdiff