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 __getitem__(self, yx):
+ return self.terrain[self.get_pos_i(yx)]
-class Map(game_common.Map):
+ def __setitem__(self, yx, c):
+ pos_i = self.get_pos_i(yx)
+ self.terrain = self.terrain[:pos_i] + c + self.terrain[pos_i + 1:]
+
+ def __iter__(self):
+ for y in range(self.size[0]):
+ for x in range(self.size[1]):
+ yield [y, x]
+
+ @property
+ def size_i(self):
+ return self.size[0] * self.size[1]
def get_line(self, y):
width = self.size[1]
return self.terrain[y * width:(y + 1) * width]
+ def get_directions(self):
+ directions = []
+ for name in dir(self):
+ if name[:5] == 'move_':
+ directions += [name[5:]]
+ return directions
+
+ def get_pos_i(self, yx):
+ return yx[0] * self.size[1] + yx[1]
+
+ def new_from_shape(self, init_char):
+ return Map(self.size, init_char*self.size_i)
+
+ def are_neighbors(self, pos_1, pos_2):
+ return abs(pos_1[0] - pos_2[0]) <= 1 and abs(pos_1[1] - pos_2[1] <= 1)
+
+ def move(self, start_pos, direction):
+ mover = getattr(self, 'move_' + direction)
+ new_pos = mover(start_pos)
+ if new_pos[0] < 0 or new_pos[1] < 0 or \
+ new_pos[0] >= self.size[0] or new_pos[1] >= self.size[1]:
+ raise GameError('would move outside map bounds')
+ return new_pos
+
+ def move_UP(self, start_pos):
+ return [start_pos[0] - 1, start_pos[1]]
+
+ def move_DOWN(self, start_pos):
+ return [start_pos[0] + 1, start_pos[1]]
+
+ def move_LEFT(self, start_pos):
+ return [start_pos[0], start_pos[1] - 1]
+
+ def move_RIGHT(self, start_pos):
+ return [start_pos[0], start_pos[1] + 1]
+
class World(game_common.World):
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 != '.':
+ test_pos = self.thing.world.map_.move(self.thing.position, direction)
+ if self.thing.world.map_[test_pos] != '.':
raise GameError('would move into illegal terrain')
for t in self.thing.world.things:
if t.position == test_pos:
return 'success'
def task_move(self, direction):
- move_pos(direction, self.position)
+ self.position = self.world.map_.move(self.position, direction)
return 'success'
def decide_task(self):
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:]
+ m = self.world.map_.new_from_shape('?')
+ for pos in m:
+ if pos == self.position or m.are_neighbors(pos, self.position):
+ m[pos] = '.'
self._stencil = m
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:
- print('DEBUG .....')
- 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):
+ import server_.io
+ self.world = World()
+ 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."""
+
+ 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.io.send('NEW_TURN ' + str(self.world.turn))
+ self.io.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.io.send('VISIBLE_MAP_LINE %5s %s' %
+ (y, self.io.quote(visible_map.get_line(y))))
+ 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_,
+ 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.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 ' + self.io.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.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 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.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_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')
+ import parser
+ legal_directions = self.world.map_.get_directions()
+ if direction not in legal_directions:
+ raise parser.ArgError('Move argument must be one of: ' +
+ ', '.join(legal_directions))
self.world.get_player().set_task('move', direction=direction)
self.proceed()
cmd_MOVE.argtypes = 'string'
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):
projects / plomrogue2-experiments / blobdiff