import sys
sys.path.append('../')
import game_common
-import parser
-
-
-class GameError(Exception):
- pass
-
-
-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 Map(game_common.Map):
-
- def get_line(self, y):
- width = self.size[1]
- return self.terrain[y * width:(y + 1) * width]
+import server_.map_
+import server_.io
+import server_.tasks
+from server_.game_error import GameError
+from parser import ArgError
class World(game_common.World):
- def __init__(self):
+ def __init__(self, game):
super().__init__()
- self.Thing = Thing # use local Thing class instead of game_common's
- self.map_ = Map() # use extended child class
+ self.game = game
self.player_id = 0
+ # use extended local classes
+ self.Thing = Thing
def proceed_to_next_player_turn(self):
"""Run game world turns until player can decide their next step.
def get_player(self):
return self.get_thing(self.player_id)
+ def make_new(self, geometry, yx, seed):
+ import random
+ random.seed(seed)
+ self.turn = 0
+ self.new_map(geometry, yx)
+ for pos in self.map_:
+ if 0 in pos or (yx[0] - 1) == pos[0] or (yx[1] - 1) == pos[1]:
+ self.map_[pos] = '#'
+ continue
+ self.map_[pos] = random.choice(('.', '.', '.', '.', 'x'))
+ player = self.Thing(self, 0)
+ player.type_ = 'human'
+ player.position = [random.randint(0, yx[0] -1),
+ random.randint(0, yx[1] - 1)]
+ npc = self.Thing(self, 1)
+ npc.type_ = 'monster'
+ npc.position = [random.randint(0, yx[0] -1),
+ random.randint(0, yx[1] -1)]
+ self.things = [player, npc]
+
+
+ return 'success'
-class Task:
-
- def __init__(self, thing, name, args=(), kwargs={}):
- self.name = name
- self.thing = thing
- self.args = args
- self.kwargs = kwargs
- self.todo = 3
-
- 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_.terrain[pos_i]
- if map_tile != '.':
- raise GameError('would move into illegal terrain')
- for t in self.thing.world.things:
- if t.position == test_pos:
- raise GameError('would move into other thing')
class Thing(game_common.Thing):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
- self.task = Task(self, 'wait')
- self.last_task_result = None
+ self.task = self.world.game.task_manager.get_task_class('WAIT')(self)
+ self._last_task_result = None
self._stencil = None
- def task_wait(self):
- return 'success'
-
- def task_move(self, direction):
- move_pos(direction, self.position)
- return 'success'
+ def move_towards_target(self, target):
+ dijkstra_map = type(self.world.map_)(self.world.map_.size)
+ n_max = 256
+ dijkstra_map.terrain = [n_max for i in range(dijkstra_map.size_i)]
+ dijkstra_map[target] = 0
+ shrunk = True
+ visible_map = self.get_visible_map()
+ while shrunk:
+ shrunk = False
+ for pos in dijkstra_map:
+ if visible_map[pos] != '.':
+ continue
+ neighbors = dijkstra_map.get_neighbors(tuple(pos))
+ for direction in neighbors:
+ yx = neighbors[direction]
+ if yx is not None and dijkstra_map[yx] < dijkstra_map[pos] - 1:
+ dijkstra_map[pos] = dijkstra_map[yx] + 1
+ shrunk = True
+ #with open('log', 'a') as f:
+ # f.write('---------------------------------\n')
+ # for y, line in dijkstra_map.lines():
+ # for val in line:
+ # if val < 10:
+ # f.write(str(val))
+ # elif val == 256:
+ # f.write('x')
+ # else:
+ # f.write('~')
+ # f.write('\n')
+ neighbors = dijkstra_map.get_neighbors(tuple(self.position))
+ n = n_max
+ #print('DEBUG', self.position, neighbors)
+ #dirs = dijkstra_map.get_directions()
+ #print('DEBUG dirs', dirs)
+ #print('DEBUG neighbors', neighbors)
+ #debug_scores = []
+ #for pos in neighbors:
+ # if pos is None:
+ # debug_scores += [9000]
+ # else:
+ # debug_scores += [dijkstra_map[pos]]
+ #print('DEBUG debug_scores', debug_scores)
+ target_direction = None
+ for direction in neighbors:
+ yx = neighbors[direction]
+ if yx is not None:
+ n_new = dijkstra_map[yx]
+ if n_new < n:
+ n = n_new
+ target_direction = direction
+ #print('DEBUG result', direction)
+ if target_direction:
+ self.set_task('MOVE', (target_direction,))
def decide_task(self):
- if self.position[1] > 1:
- self.set_task('move', 'LEFT')
- elif self.position[1] < 3:
- self.set_task('move', 'RIGHT')
- else:
- self.set_task('wait')
+ # TODO: Check if monster can follow player too well (even when they should lose them)
+ visible_things = self.get_visible_things()
+ target = None
+ for t in visible_things:
+ if t.type_ == 'human':
+ target = t.position
+ break
+ if target is not None:
+ try:
+ self.move_towards_target(target)
+ return
+ except GameError:
+ pass
+ self.set_task('WAIT')
+
- def set_task(self, task_name, *args, **kwargs):
- self.task = Task(self, task_name, args, kwargs)
- self.task.check()
+ def set_task(self, task_name, args=()):
+ task_class = self.world.game.task_manager.get_task_class(task_name)
+ self.task = task_class(self, args)
+ self.task.check() # will throw GameError if necessary
def proceed(self, is_AI=True):
"""Further the thing in its tasks.
self.task.check()
except GameError as e:
self.task = None
- self.last_task_result = e
+ self._last_task_result = e
if is_AI:
- self.decide_task()
+ try:
+ self.decide_task()
+ except GameError:
+ self.set_task('WAIT')
return
self.task.todo -= 1
if self.task.todo <= 0:
- task = getattr(self, 'task_' + self.task.name)
- self.last_task_result = task(*self.task.args, **self.task.kwargs)
+ self._last_task_result = self.task.do()
self.task = None
if is_AI and self.task is None:
- self.decide_task()
+ try:
+ self.decide_task()
+ except GameError:
+ self.set_task('WAIT')
def get_stencil(self):
if self._stencil is not None:
return self._stencil
- size = self.world.map_.size
- m = Map(self.world.map_.size, '?'*size[0]*size[1])
- y_me = self.position[0]
- x_me = self.position[1]
- for y in range(m.size[0]):
- if y in (y_me - 1, y_me, y_me + 1):
- for x in range(m.size[1]):
- if x in (x_me - 1, x_me, x_me + 1):
- pos = y * size[1] + x
- m.terrain = m.terrain[:pos] + '.' + m.terrain[pos+1:]
- self._stencil = m
+ self._stencil = self.world.map_.get_fov_map(self.position)
return self._stencil
def get_visible_map(self):
stencil = self.get_stencil()
- size = self.world.map_.size
- size_i = self.world.map_.size[0] * self.world.map_.size[1]
- m = Map(size, ' '*size_i)
- for i in range(size_i):
- if stencil.terrain[i] == '.':
- c = self.world.map_.terrain[i]
- m.terrain = m.terrain[:i] + c + m.terrain[i+1:]
+ m = self.world.map_.new_from_shape(' ')
+ for pos in m:
+ if stencil[pos] == '.':
+ m[pos] = self.world.map_[pos]
return m
def get_visible_things(self):
stencil = self.get_stencil()
visible_things = []
for thing in self.world.things:
- width = self.world.map_.size[1]
- pos_i = thing.position[0] * width + thing.position[1]
- if stencil.terrain[pos_i] == '.':
+ if stencil[thing.position] == '.':
visible_things += [thing]
return visible_things
-class Commander():
+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 Game(game_common.CommonCommandsMixin):
+
+ def __init__(self, game_file_name):
+ self.map_manager = server_.map_.map_manager
+ self.task_manager = server_.tasks.task_manager
+ self.world = World(self)
+ self.io = server_.io.GameIO(game_file_name, self)
+ # 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 send_gamestate(self, connection_id=None):
+ """Send out game state data relevant to clients."""
+
+ self.io.send('TURN ' + str(self.world.turn))
+ self.io.send('MAP ' + self.world.map_.geometry +\
+ ' ' + server_.io.stringify_yx(self.world.map_.size))
+ visible_map = self.world.get_player().get_visible_map()
+ for y, line in visible_map.lines():
+ self.io.send('VISIBLE_MAP_LINE %5s %s' % (y, server_.io.quote(line)))
+ visible_things = self.world.get_player().get_visible_things()
+ for thing in visible_things:
+ self.io.send('THING_TYPE %s %s' % (thing.id_, thing.type_))
+ self.io.send('THING_POS %s %s' % (thing.id_,
+ server_.io.stringify_yx(thing.position)))
+ player = self.world.get_player()
+ self.io.send('PLAYER_POS %s' % (server_.io.stringify_yx(player.position)))
+ self.io.send('GAME_STATE_COMPLETE')
+
+ 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.io.send('TURN_FINISHED ' + str(self.world.turn))
+ self.world.proceed_to_next_player_turn()
+ msg = str(self.world.get_player()._last_task_result)
+ self.io.send('LAST_PLAYER_TASK_RESULT ' + server_.io.quote(msg))
+ self.send_gamestate()
+
+ def cmd_FIB(self, numbers, connection_id):
+ """Reply with n-th Fibonacci numbers, n taken from tokens[1:].
- def cmd_MOVE(self, direction):
- """Set player task to 'move' with direction arg, finish player turn."""
- if direction not in {'UP', 'DOWN', 'RIGHT', 'LEFT'}:
- raise parser.ArgError('Move argument must be one of: '
- 'UP, DOWN, RIGHT, LEFT')
- self.world.get_player().set_task('move', direction=direction)
- self.proceed()
- cmd_MOVE.argtypes = 'string'
+ Numbers are calculated in parallel as far as possible, using fib().
+ A 'CALCULATING …' message is sent to caller before the result.
+ """
+ self.io.send('CALCULATING …', connection_id)
+ results = self.pool.map(fib, numbers)
+ reply = ' '.join([str(r) for r in results])
+ self.io.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 TURN occurs; after 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).
- def cmd_WAIT(self):
- """Set player task to 'wait', finish player turn."""
- self.world.get_player().set_task('wait')
+ """
+ from time import sleep
+ if self.pool_result is not None:
+ self.pool_result.wait()
+ self.io.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))
+
+ def cmd_SWITCH_PLAYER(self):
+ player = self.world.get_player()
+ player.set_task('WAIT')
+ thing_ids = [t.id_ for t in self.world.things]
+ player_index = thing_ids.index(player.id_)
+ if player_index == len(thing_ids) - 1:
+ self.world.player_id = thing_ids[0]
+ else:
+ self.world.player_id = thing_ids[player_index + 1]
self.proceed()
def cmd_GET_GAMESTATE(self, connection_id):
- """Send game state jto caller."""
+ """Send game state to caller."""
self.send_gamestate(connection_id)
def cmd_ECHO(self, msg, connection_id):
"""Send msg to caller."""
- self.send(msg, connection_id)
+ self.io.send(msg, connection_id)
cmd_ECHO.argtypes = 'string'
def cmd_ALL(self, msg, connection_id):
"""Send msg to all clients."""
- self.send(msg)
+ self.io.send(msg)
cmd_ALL.argtypes = 'string'
def cmd_TERRAIN_LINE(self, y, terrain_line):
self.world.map_.set_line(y, terrain_line)
cmd_TERRAIN_LINE.argtypes = 'int:nonneg string'
+
+ def cmd_GEN_WORLD(self, geometry, yx, seed):
+ self.world.make_new(geometry, yx, seed)
+ cmd_GEN_WORLD.argtypes = 'string:geometry yx_tuple:pos string'
+
+ def get_command_signature(self, command_name):
+ from functools import partial
+
+ def cmd_TASK_colon(task_name, *args):
+ self.world.get_player().set_task(task_name, args)
+ self.proceed()
+
+ def cmd_SET_TASK_colon(task_name, thing_id, todo, *args):
+ t = self.world.get_thing(thing_id, False)
+ if t is None:
+ raiseArgError('No such Thing.')
+ task_class = self.task_manager.get_task_class(task_name)
+ t.task = task_class(t, args)
+ t.task.todo = todo
+
+ def task_prefixed(command_name, task_prefix, task_command,
+ argtypes_prefix=''):
+ func = None
+ argtypes = ''
+ if command_name[:len(task_prefix)] == task_prefix:
+ task_name = command_name[len(task_prefix):]
+ task_manager_reply = self.task_manager.get_task_class(task_name)
+ if task_manager_reply is not None:
+ func = partial(task_command, task_name)
+ task_class = task_manager_reply
+ argtypes = task_class.argtypes
+ if func is not None:
+ return func, argtypes_prefix + argtypes
+ return None, argtypes
+
+ func, argtypes = task_prefixed(command_name, 'TASK:', cmd_TASK_colon)
+ if func:
+ return func, argtypes
+ func, argtypes = task_prefixed(command_name, 'SET_TASK:',
+ cmd_SET_TASK_colon,
+ 'int:nonneg int:nonneg ')
+ if func:
+ return func, argtypes
+ func_candidate = 'cmd_' + command_name
+ if hasattr(self, func_candidate):
+ func = getattr(self, func_candidate)
+ if hasattr(func, 'argtypes'):
+ argtypes = func.argtypes
+ return func, argtypes
+
+ def get_string_options(self, string_option_type):
+ if string_option_type == 'geometry':
+ return self.map_manager.get_map_geometries()
+ elif string_option_type == 'direction':
+ return self.world.map_.get_directions()
+ return None
+
+ def cmd_PLAYER_ID(self, id_):
+ # TODO: test whether valid thing ID
+ self.world.player_id = id_
+ cmd_PLAYER_ID.argtypes = 'int:nonneg'
+
+ def cmd_TURN(self, n):
+ self.world.turn = n
+ cmd_TURN.argtypes = 'int:nonneg'
+
+ def cmd_SAVE(self):
+
+ def write(f, msg):
+ f.write(msg + '\n')
+
+ save_file_name = self.io.game_file_name + '.save'
+ with open(save_file_name, 'w') as f:
+ write(f, 'TURN %s' % self.world.turn)
+ write(f, 'MAP ' + self.world.map_.geometry + ' ' + server_.io.stringify_yx(self.world.map_.size))
+ for y, line in self.world.map_.lines():
+ write(f, 'TERRAIN_LINE %5s %s' % (y, server_.io.quote(line)))
+ for thing in self.world.things:
+ write(f, 'THING_TYPE %s %s' % (thing.id_, thing.type_))
+ write(f, 'THING_POS %s %s' % (thing.id_,
+ server_.io.stringify_yx(thing.position)))
+ task = thing.task
+ if task is not None:
+ task_args = task.get_args_string()
+ write(f, 'SET_TASK:%s %s %s %s' % (task.name, thing.id_,
+ task.todo, task_args))
+ write(f, 'PLAYER_ID %s' % self.world.player_id)
+ cmd_SAVE.dont_save = True
projects / plomrogue2-experiments / blobdiff