plomlompom.com Git - plomrogue/blob - roguelike-client

   1 #!/usr/bin/python3
   2
   3 # This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
   4 # or any later version. For details on its copyright, license, and warranties,
   5 # see the file NOTICE in the root directory of the PlomRogue source package.
   6
   7
   8 import curses
   9 import os
  10 import signal
  11 import time
  12
  13 from client.config.world_data import world_data
  14 from client.config.io import io
  15 from client.config.commands import commands
  16 from client.window_management import redraw_windows, set_windows, draw_screen, \
  17                                      stdscr
  18 from client.query_mapcell import query_mapcell
  19
  20
  21 message_queue = {
  22     "open_end": False,
  23     "messages": []
  24 }
  25
  26
  27 def read_worldstate():
  28     global redraw_windows
  29     if not os.access(io["path_worldstate"], os.F_OK):
  30         msg = "No world state file found at " + io["path_worldstate"] + "."
  31         raise SystemExit(msg)
  32     read_anew = False
  33     worldstate_file = open(io["path_worldstate"], "r")
  34     turn_string = worldstate_file.readline()
  35     if int(turn_string) != world_data["turn"]:
  36         read_anew = True
  37     if not read_anew: # In rare cases, world may change, but not turn number.
  38         mtime = os.stat(io["path_worldstate"])
  39         if mtime != read_worldstate.last_checked_mtime:
  40             read_worldstate.last_checked_mtime = mtime
  41             read_anew = True
  42     if read_anew:
  43         # TODO: Hardcode order of necessary fields, ensure order dependencies.
  44         redraw_windows = True
  45         old_inventory_size = len(world_data["inventory"])
  46         world_data["turn"] = int(turn_string)
  47         for entry in io["worldstate_read_order"]:
  48             if entry[1] == "int":
  49                 if 2 == len(entry):
  50                     world_data[entry[0]] = int(worldstate_file.readline())
  51                 elif 3 == len(entry):
  52                     world_data[entry[0]][entry[2]] = \
  53                             int(worldstate_file.readline())
  54             elif entry[1] == "lines":
  55                 world_data[entry[0]] = []
  56                 while True:
  57                     line = worldstate_file.readline().replace("\n", "")
  58                     if line == '%':
  59                         break
  60                     world_data[entry[0]] += [line]
  61             elif entry[1] == "map":
  62                 world_data[entry[0]] = ""
  63                 for i in range(world_data["map_size"]):
  64                     line = worldstate_file.readline().replace("\n", "")
  65                     world_data[entry[0]] += line
  66         if not world_data["look_mode"]:
  67             world_data["map_center"] = world_data["avatar_position"][:]
  68         if world_data["inventory_selection"] > 0 and \
  69                 len(world_data["inventory"]) < old_inventory_size:
  70             world_data["inventory_selection"] -= 1
  71     worldstate_file.close()
  72 read_worldstate.last_checked_mtime = -1
  73
  74
  75 def read_message_queue():
  76     global redraw_windows
  77     while (len(message_queue["messages"]) > 1
  78         or (len(message_queue["messages"]) == 1
  79             and not message_queue["open_end"])):
  80         message = message_queue["messages"].pop(0)
  81         if message == "THINGS_HERE START":
  82             read_message_queue.parse_thingshere = True
  83             world_data["look"] = []
  84         elif message == "THINGS_HERE END":
  85             read_message_queue.parse_thingshere = False
  86             if world_data["look"] == []:
  87                 world_data["look"] = ["(none known)"]
  88             redraw_windows = True
  89         elif read_message_queue.parse_thingshere:
  90             world_data["look"] += [message]
  91         elif message[0:4] == "LOG ":
  92             world_data["log"] += [message[4:]]
  93             redraw_windows = True
  94         elif message == "WORLD_UPDATED":
  95             query_mapcell()
  96         elif message[:6] == "PLUGIN":
  97             str_plugin = message[7:]
  98             if (str_plugin.replace("_", "").isalnum()
  99                 and os.access("plugins/client/" + str_plugin + ".py",
 100                     os.F_OK)):
 101                 exec(open("plugins/client/" + str_plugin + ".py").read())
 102                 return
 103             raise SystemExit("Invalid plugin load path in message: " + message)
 104 read_message_queue.parse_thingshere = False
 105
 106
 107 def cursed_main(stdscr):
 108     global redraw_windows
 109
 110     def ping_test():
 111         half_wait_time = 5
 112         if len(new_data_from_server) > 0:
 113             ping_test.sent = False
 114         elif ping_test.wait_start + half_wait_time < time.time():
 115             if not ping_test.sent:
 116                 io["file_out"].write("PING\n")
 117                 io["file_out"].flush()
 118                 ping_test.sent = True
 119                 ping_test.wait_start = time.time()
 120             elif ping_test.sent:
 121                 raise SystemExit("Server not answering anymore.")
 122     ping_test.wait_start = 0
 123
 124     def read_into_message_queue():
 125         if new_data_from_server == "":
 126             return
 127         new_open_end = False
 128         if new_data_from_server[-1] is not "\n":
 129             new_open_end = True
 130         new_messages = new_data_from_server.splitlines()
 131         if message_queue["open_end"]:
 132             message_queue["messages"][-1] += new_messages[0]
 133             del new_messages[0]
 134         message_queue["messages"] += new_messages
 135         if new_open_end:
 136             message_queue["open_end"] = True
 137
 138     def set_and_redraw_windows(*ignore):
 139         set_windows()
 140         draw_screen()
 141
 142     curses.noecho()
 143     curses.curs_set(False)
 144     signal.signal(signal.SIGWINCH, set_and_redraw_windows)
 145     set_windows()
 146     delay = 1
 147     while True:
 148         stdscr.timeout(int(delay))
 149         if delay < 1000:
 150             delay = delay * 1.1
 151         if redraw_windows:
 152             delay = 1
 153             draw_screen()
 154             redraw_windows = False
 155         char = stdscr.getch()
 156         if char >= 0:
 157             char = chr(char)
 158             if char in commands:
 159                 if len(commands[char]) == 1 or not world_data["look_mode"]:
 160                     commands[char][0]()
 161                 else:
 162                     commands[char][1]()
 163                 redraw_windows = True
 164         new_data_from_server = io["file_in"].read()
 165         ping_test()
 166         read_into_message_queue()
 167         read_worldstate()
 168         read_message_queue()
 169
 170
 171 try:
 172     if (not os.access(io["path_out"], os.F_OK)):
 173         msg = "No server input file found at " + io["path_out"] + "."
 174         raise SystemExit(msg)
 175     io["file_out"] = open(io["path_out"], "a")
 176     io["file_in"] = open(io["path_in"], "r")
 177     curses.wrapper(cursed_main)
 178 except SystemExit as exit:
 179     print("ABORTING: " + exit.args[0])
 180 except:
 181     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
 182     raise
 183 finally:
 184     if "file_out" in io:
 185         io["file_out"].close()
 186     if "file_in" in io:
 187         io["file_in"].close()