+def replay_game():
+ """Replay game from record file.
+
+ Use opts.replay as breakpoint turn to which to replay automatically before
+ switching to manual input by non-meta commands in server input file
+ triggering further reads of record file. Ensure opts.replay is at least 1.
+ """
+ if opts.replay < 1:
+ opts.replay = 1
+ print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
+ " (if so late a turn is to be found).")
+ if not os.access(io_db["path_record"], os.F_OK):
+ raise SystemExit("No record file found to replay.")
+ io_db["file_record"] = open(io_db["path_record"], "r")
+ io_db["file_record"].prefix = "record file line "
+ io_db["file_record"].line_n = 1
+ while world_db["TURN"] < opts.replay:
+ line = io_db["file_record"].readline()
+ if "" == line:
+ break
+ obey(line.rstrip(), io_db["file_record"].prefix
+ + str(io_db["file_record"].line_n))
+ io_db["file_record"].line_n = io_db["file_record"].line_n + 1
+ while True:
+ obey(read_command(), "in file", replay=True)
+
+
+def play_game():
+ """Play game by server input file commands. Before, load save file found.
+
+ If no save file is found, a new world is generated from the commands in the
+ world config plus a 'MAKE WORLD [current Unix timestamp]'. Record this
+ command and all that follow via the server input file.
+ """
+ if os.access(io_db["path_save"], os.F_OK):
+ obey_lines_in_file(io_db["path_save"], "save")
+ else:
+ if not os.access(io_db["path_worldconf"], os.F_OK):
+ msg = "No world config file from which to start a new world."
+ raise SystemExit(msg)
+ obey_lines_in_file(io_db["path_worldconf"], "world config ",
+ do_record=True)
+ obey("MAKE_WORLD " + str(int(time.time())), "in file", do_record=True)
+ while True:
+ obey(read_command(), "in file", do_record=True)
+
+
+def remake_map():
+ # DUMMY.
+ print("I'd (re-)make the map now, if only I knew how.")
+
+
+def set_world_inactive():
+ """Set world_db["WORLD_ACTIVE"] to 0 and remove worldstate file."""
+ server_test()
+ if os.access(io_db["path_worldstate"], os.F_OK):
+ os.remove(io_db["path_worldstate"])
+ world_db["WORLD_ACTIVE"] = 0
+
+
+def worlddb_value_setter(key, min, max):
+ """Generate: Set world_db[key] to int(val_string) if >= min and <= max."""
+ def func(val_string):
+ try:
+ val = int(val_string)
+ if val < min or val > max:
+ raise ValueError
+ world_db[key] = val
+ except ValueError:
+ print("Ignoring: Please use integer >= " + str(min) + " and <= " +
+ str(max) + ".")
+ return func
+
+
+def command_ping():
+ """Send PONG line to server output file."""
+ io_db["file_out"].write("PONG\n")
+ io_db["file_out"].flush()
+
+
+def command_quit():
+ """Abort server process."""
+ raise SystemExit("received QUIT command")
+
+
+def command_seedmap(seed_string):
+ """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
+ worlddb_value_setter("SEED_MAP", 0, 4294967295)(seed_string)
+ remake_map()
+
+
+def command_makeworld(seed_string):
+ # DUMMY.
+ worlddb_value_setter("SEED_MAP", 0, 4294967295)(seed_string)
+ worlddb_value_setter("SEED_RANDOMNESS", 0, 4294967295)(seed_string)
+ # TODO: Test for existence of player thing and 'wait' thing action?
+
+
+def command_maplength(maplength_string):
+ # DUMMY.
+ set_world_inactive()
+ # TODO: remove things, map
+ worlddb_value_setter("MAP_LENGTH", 1, 256)(maplength_string)
+
+
+def command_worldactive(worldactive_string):
+ # DUMMY.
+ try:
+ val = int(worldactive_string)
+ if not (0 == val or 1 == val):
+ raise ValueError
+ except ValueError:
+ print("Ignoring: Please use integer 0 or 1.")
+ return
+ if 0 != world_db["WORLD_ACTIVE"] and 0 == val:
+ set_world_inactive()
+ elif 0 == world_db["WORLD_ACTIVE"]:
+ wait_exists = False
+ player_exists = False
+ map_exists = False
+ # TODO: perform tests:
+ # Is there thing action of name 'wait'?
+ # Is there a player thing?
+ # Is there a map?
+ if wait_exists and player_exists and map_exists:
+ # TODO: rebuild al things' FOVs, map memories
+ world_db["WORLD_ACTIVE"] = 1
+
+
+"""Commands database.
+
+Map command start tokens to ([0]) number of expected command arguments, ([1])
+the command's meta-ness (i.e. is it to be written to the record file, is it to
+be ignored in replay mode if read from server input file), and ([2]) a function
+to be called on it.
+"""
+commands_db = {
+ "QUIT": (0, True, command_quit),
+ "PING": (0, True, command_ping),
+ "MAKE_WORLD": (1, False, command_makeworld),
+ "SEED_MAP": (1, False, command_seedmap),
+ "SEED_RANDOMNESS": (1, False, worlddb_value_setter("SEED_RANDOMNESS", 0,
+ 4294967295)),
+ "TURN": (1, False, worlddb_value_setter("TURN", 0, 65535)),
+ "PLAYER_TYPE": (1, False, worlddb_value_setter("PLAYER_TYPE", 0, 255)),
+ "MAP_LENGTH": (1, False, command_maplength),
+ "WORLD_ACTIVE": (1, False, command_worldactive)
+}
+
+
+"""World state database. With sane default values."""
+world_db = {
+ "TURN": 1,
+ "SEED_MAP": 0,
+ "SEED_RANDOMNESS": 0,
+ "PLAYER_TYPE": 0,
+ "MAP_LENGTH": 64,
+ "WORLD_ACTIVE": 0,
+ "thing actions": {},
+ "thing types": {},
+ "things": {}
+}
+
+
+"""File IO database."""
+io_db = {
+ "path_save": "save",
+ "path_record": "record",
+ "path_worldconf": "confserver/world",
+ "path_server": "server/",
+ "path_in": "server/in",
+ "path_out": "server/out",
+ "path_worldstate": "server/worldstate",
+ "tmp_suffix": "_tmp",
+ "kicked_by_rival": False
+}
+
+