plomlompom.com Git - plomrogue/blob - client_prototype.py

   1 import curses
   2 import math
   3 import os
   4 import signal
   5 import time
   6
   7
   8 def set_window_geometries():
   9
  10     def set_window_size():
  11         win["size"], win["start"] = [0, 0], [0, 0]
  12         win["size"][0] = win["config"][0]
  13         if (win["config"][0] == 0):
  14             win["size"][0] = screen_size[0] - sep_size
  15         elif (win["config"][0] < 0):
  16             win["size"][0] = screen_size[0] + win["config"][0] - sep_size
  17         win["size"][1] = win["config"][1]
  18         if (win["config"][1] == 0):
  19             win["size"][1] = screen_size[1]
  20         elif (win["config"][1] < 0):
  21             win["size"][1] = screen_size[1] + win["config"][1]
  22
  23     def place_window():
  24         win_i = windows.index(win)
  25
  26         # If win is first window, it goes into the top left corner.
  27         win["start"][0] = 0 + sep_size
  28         win["start"][1] = 0
  29         if (win_i > 0):
  30
  31             # If not, get win's closest predecessor starting a new stack on the
  32             # screen top,fit win's top left to that win_top's top right corner.
  33             win_top = None
  34             for i in range(win_i - 1, -1, -1):
  35                 win_top = windows[i]
  36                 if (win_top["start"][0] == 0 + sep_size):
  37                     break
  38             win["start"][1] = win_top["start"][1] + win_top["size"][1] \
  39                 + sep_size
  40
  41             # If enough space is found below win's predecessor, fit win's top
  42             # left corner to that predecessor's bottom left corner.
  43             win_prev = windows[win_i - 1]
  44             next_free_y = win_prev["start"][0] + win_prev["size"][0] + sep_size
  45             if (win["size"][1] <= win_prev["size"][1] and
  46                     win["size"][0] <= screen_size[0] - next_free_y):
  47                 win["start"][1] = win_prev["start"][1]
  48                 win["start"][0] = next_free_y
  49
  50             # If that fails, try to fit win's top left corner to the top right
  51             # corner of its closest predecessor win_test 1) below win_top (see
  52             # above) 2) and with enough space open to its right between its
  53             # right edge and the lower edge of a win_high located directly
  54             # above win_test to fit win there (without growing further to the
  55             # right than win_high does or surpassing the screen's lower edge).
  56             else:
  57                 win_test = win_prev
  58                 win_high = None
  59                 while (win_test != win_top):
  60                     for i in range(win_i - 2, -1, -1):
  61                         win_high = windows[i]
  62                         if win_test["start"][0] > win_high["start"][0]:
  63                             break
  64                     next_free_y = win_high["start"][0] + win_high["size"][0] \
  65                         + sep_size
  66                     first_free_x = win_test["start"][1] + win_test["size"][1] \
  67                         + sep_size
  68                     last_free_x = win_high["start"][1] + win_high["size"][1]
  69                     if (win["size"][0] <= screen_size[0] - next_free_y and
  70                             win["size"][1] <= last_free_x - first_free_x):
  71                         win["start"][1] = first_free_x
  72                         win["start"][0] = next_free_y
  73                         break
  74                     win_test = win_high
  75
  76     global screen_size, stdscr
  77     curses.endwin()
  78     stdscr = curses.initscr()
  79     screen_size = stdscr.getmaxyx()
  80     for win in windows:
  81         set_window_size()
  82         place_window()
  83     cursed_main.redraw = True
  84
  85
  86 def draw_screen():
  87
  88     def healthy_addch(y, x, char, attr=0):
  89         """Workaround for <http://stackoverflow.com/questions/7063128/>."""
  90         if y == screen_size[0] - 1 and x == screen_size[1] - 1:
  91             char_before = stdscr.inch(y, x - 1)
  92             stdscr.addch(y, x - 1, char, attr)
  93             stdscr.insstr(y, x - 1, " ")
  94             stdscr.addch(y, x - 1, char_before)
  95         else:
  96             stdscr.addch(y, x, char, attr)
  97
  98     def draw_window_border_lines():
  99         for win in windows:
 100             for k in range(2):
 101                 j = win["start"][int(k == 0)] - sep_size
 102                 if (j >= 0 and j < screen_size[int(k == 0)]):
 103                     start = win["start"][k]
 104                     # start = start if start >= 0 else 0
 105                     end = win["start"][k] + win["size"][k]
 106                     end = end if end < screen_size[k] else screen_size[k]
 107                     if k:
 108                         [healthy_addch(j, i, '-') for i in range(start, end)]
 109                     else:
 110                         [healthy_addch(i, j, '|') for i in range(start, end)]
 111
 112     def draw_window_border_corners():
 113         for win in windows:
 114             up = win["start"][0] - sep_size
 115             down = win["start"][0] + win["size"][0]
 116             left = win["start"][1] - sep_size
 117             right = win["start"][1] + win["size"][1]
 118             if (up >= 0 and up < screen_size[0]):
 119                 if (left >= 0 and left < screen_size[1]):
 120                     healthy_addch(up, left, '+')
 121                 if (right >= 0 and right < screen_size[1]):
 122                     healthy_addch(up, right, '+')
 123             if (down >= 0 and down < screen_size[0]):
 124                 if (left >= 0 and left < screen_size[1]):
 125                     healthy_addch(down, left, '+')
 126                 if (right >= 0 and right < screen_size[1]):
 127                     healthy_addch(down, right, '+')
 128
 129     def draw_window_contents():
 130         def draw_winmap():
 131             """Draw winmap in area delimited by offset, winmap_size.
 132
 133             The individuall cell of a winmap is interpreted as either a single
 134             character element, or as a tuple of character and attribute,
 135             depending on the size len(cell) spits out.
 136             """
 137             stop = [0, 0]
 138             for i in range(2):
 139                 stop[i] = win["size"][i] + offset[i]
 140                 if stop[i] >= winmap_size[i]:
 141                     stop[i] = winmap_size[i]
 142             for y in range(offset[0], stop[0]):
 143                 for x in range(offset[1], stop[1]):
 144                     cell = winmap[y * winmap_size[1] + x]
 145                     attr = 0
 146                     if len(cell) > 1:
 147                         attr = cell[1]
 148                         cell = cell[0]
 149                     y_in_screen = win["start"][0] + (y - offset[0])
 150                     x_in_screen = win["start"][1] + (x - offset[1])
 151                     if (y_in_screen < screen_size[0]
 152                             and x_in_screen < screen_size[1]):
 153                         healthy_addch(y_in_screen, x_in_screen, cell, attr)
 154         def draw_scroll_hints():
 155             def draw_scroll_string(n_lines_outside):
 156                 hint = ' ' + str(n_lines_outside + 1) + ' more ' + unit + ' '
 157                 if len(hint) <= win["size"][ni]:
 158                     non_hint_space = win["size"][ni] - len(hint)
 159                     hint_offset = int(non_hint_space / 2)
 160                     for j in range(win["size"][ni] - non_hint_space):
 161                         pos_2 = win["start"][ni] + hint_offset + j
 162                         x, y = (pos_2, pos_1) if ni else (pos_1, pos_2)
 163                         healthy_addch(y, x, hint[j], curses.A_REVERSE)
 164             def draw_scroll_arrows(ar1, ar2):
 165                 for j in range(win["size"][ni]):
 166                     pos_2 = win["start"][ni] + j
 167                     x, y = (pos_2, pos_1) if ni else (pos_1, pos_2)
 168                     healthy_addch(y, x, ar1 if ni else ar2, curses.A_REVERSE)
 169             for i in range(2):
 170                 ni = int(i == 0)
 171                 unit = 'rows' if ni else 'columns'
 172                 if (offset[i] > 0):
 173                     pos_1 = win["start"][i]
 174                     draw_scroll_arrows('^', '<')
 175                     draw_scroll_string(offset[i])
 176                 if (winmap_size[i] > offset[i] + win["size"][i]):
 177                     pos_1 = win["start"][i] + win["size"][i] - 1
 178                     draw_scroll_arrows('v', '>')
 179                     draw_scroll_string(winmap_size[i] - offset[i]
 180                         - win["size"][i])
 181         for win in windows:
 182             offset, winmap_size, winmap = win["func"]()
 183             draw_winmap()
 184             draw_scroll_hints()
 185
 186     stdscr.erase()
 187     draw_window_border_lines()
 188     draw_window_border_corners()
 189     draw_window_contents()
 190     stdscr.refresh()
 191
 192
 193 def read_worldstate():
 194     if not os.access(io["path_worldstate"], os.F_OK):
 195         msg = "No world state file found at " + io["path_worldstate"] + "."
 196         raise SystemExit(msg)
 197     read_anew = False
 198     worldstate_file = open(io["path_worldstate"], "r")
 199     turn_string = worldstate_file.readline()
 200     if int(turn_string) != world_data["turn"]:
 201         read_anew = True
 202     if not read_anew: # In rare cases, world may change, but not turn number.
 203         mtime = os.stat(io["path_worldstate"])
 204         if mtime != read_worldstate.last_checked_mtime:
 205             read_worldstate.last_checked_mtime = mtime
 206             read_anew = True
 207     if read_anew:
 208         cursed_main.redraw = True
 209         world_data["turn"] = int(turn_string)
 210         world_data["lifepoints"] = int(worldstate_file.readline())
 211         world_data["satiation"] = int(worldstate_file.readline())
 212         world_data["inventory"] = []
 213         while True:
 214             line = worldstate_file.readline().replace("\n", "")
 215             if line == '%':
 216                 break
 217             world_data["inventory"] += [line]
 218         world_data["avatar_position"][0] = int(worldstate_file.readline())
 219         world_data["avatar_position"][1] = int(worldstate_file.readline())
 220         if not world_data["look_mode"]:
 221             world_data["map_center"][0] = world_data["avatar_position"][0]
 222             world_data["map_center"][1] = world_data["avatar_position"][1]
 223         world_data["map_size"] = int(worldstate_file.readline())
 224         world_data["fov_map"] = ""
 225         for i in range(world_data["map_size"]):
 226             line = worldstate_file.readline().replace("\n", "")
 227             world_data["fov_map"] += line
 228         world_data["mem_map"] = ""
 229         for i in range(world_data["map_size"]):
 230             line = worldstate_file.readline().replace("\n", "")
 231             world_data["mem_map"] += line
 232     worldstate_file.close()
 233 read_worldstate.last_checked_mtime = -1
 234
 235
 236 def read_message_queue():
 237     while (len(message_queue["messages"]) > 1
 238         or (len(message_queue["messages"]) == 1
 239             and not message_queue["open_end"])):
 240         message = message_queue["messages"].pop(0)
 241         if message == "THINGS_HERE START":
 242             read_message_queue.parse_thingshere = True
 243             world_data["look"] = []
 244         elif message == "THINGS_HERE END":
 245             read_message_queue.parse_thingshere = False
 246             if world_data["look"] == []:
 247                 world_data["look"] = ["(none known)"]
 248             cursed_main.redraw = True
 249         elif read_message_queue.parse_thingshere:
 250             world_data["look"] += [message]
 251         elif message[0:4] == "LOG ":
 252             world_data["log"] += [message[4:]]
 253             cursed_main.redraw = True
 254         elif message == "WORLD_UPDATED":
 255             query_mapcell()
 256 read_message_queue.parse_thingshere = False
 257
 258
 259 def query_mapcell():
 260    command_sender("THINGS_HERE " + str(world_data["map_center"][0]) + " "
 261         + str(world_data["map_center"][1]))()
 262    world_data["look"] = ["(polling)"]
 263
 264
 265 def cursed_main(stdscr):
 266
 267     def ping_test():
 268         half_wait_time = 5
 269         if len(new_data_from_server) > 0:
 270             ping_test.sent = False
 271         elif ping_test.wait_start + half_wait_time < time.time():
 272             if not ping_test.sent:
 273                 io["file_out"].write("PING\n")
 274                 io["file_out"].flush()
 275                 ping_test.sent = True
 276                 ping_test.wait_start = time.time()
 277             elif ping_test.sent:
 278                 raise SystemExit("Server not answering anymore.")
 279     ping_test.wait_start = 0
 280
 281     def read_into_message_queue():
 282         if new_data_from_server == "":
 283             return
 284         new_open_end = False
 285         if new_data_from_server[-1] is not "\n":
 286             new_open_end = True
 287         new_messages = new_data_from_server.splitlines()
 288         if message_queue["open_end"]:
 289             message_queue["messages"][-1] += new_messages[0]
 290             del new_messages[0]
 291         message_queue["messages"] += new_messages
 292         if new_open_end:
 293             message_queue["open_end"] = True
 294
 295     curses.noecho()
 296     curses.curs_set(False)
 297     # stdscr.keypad(True)
 298     signal.signal(signal.SIGWINCH,
 299         lambda ignore_1, ignore_2: set_window_geometries())
 300     set_window_geometries()
 301     delay = 1
 302     while True:
 303         stdscr.timeout(int(delay))
 304         delay = delay * 1.1 if delay < 1000 else delay
 305         if cursed_main.redraw:
 306             delay = 1
 307             draw_screen()
 308             cursed_main.redraw = False
 309         char = stdscr.getch()
 310         if char >= 0:
 311             char = chr(char)
 312             if char in commands:
 313                 if len(commands[char]) == 1 or not world_data["look_mode"]:
 314                     commands[char][0]()
 315                     cursed_main.redraw = True
 316                 else:
 317                     commands[char][1]()
 318                     cursed_main.redraw = True
 319         new_data_from_server = io["file_in"].read()
 320         ping_test()
 321         read_into_message_queue()
 322         read_worldstate()
 323         read_message_queue()
 324
 325
 326 def win_map():
 327     win_size = next(win["size"] for win in windows if win["func"] == win_map)
 328     offset = [0, 0]
 329     for i in range(2):
 330         if world_data["map_center"][i] * (i + 1) > win_size[i] / 2:
 331             if world_data["map_center"][i] * (i + 1) \
 332                 < world_data["map_size"] * (i + 1) - win_size[i] / 2:
 333                 offset[i] = world_data["map_center"][i] * (i + 1) \
 334                     - int(win_size[i] / 2)
 335                 if i == 1:
 336                     offset[1] = offset[1] + world_data["map_center"][0] % 2
 337             else:
 338                 offset[i] = world_data["map_size"] * (i + 1) - win_size[i] + i
 339     winmap_size = [world_data["map_size"], world_data["map_size"] * 2 + 1]
 340     winmap = []
 341     curses.init_pair(1, curses.COLOR_WHITE, curses.COLOR_BLUE)
 342     curses.init_pair(2, curses.COLOR_BLUE, curses.COLOR_BLACK)
 343     for y in range(world_data["map_size"]):
 344         for x in range(world_data["map_size"]):
 345             char = world_data["fov_map"][y * world_data["map_size"] + x]
 346             if world_data["look_mode"] and y == world_data["map_center"][0] \
 347                     and x == world_data["map_center"][1]:
 348                 if char == " ":
 349                     char = \
 350                         world_data["mem_map"][y * world_data["map_size"] + x]
 351                 winmap += [(char, curses.A_REVERSE), (" ", curses.A_REVERSE)]
 352                 continue
 353             if char == " ":
 354                 char = world_data["mem_map"][y * world_data["map_size"] + x]
 355                 attribute = curses.color_pair(1) if char == " " \
 356                     else curses.color_pair(2)
 357                 winmap += [(char, attribute), (" ", attribute)]
 358             else:
 359                 winmap += char + " "
 360         if y % 2 == 0:
 361             winmap += "  "
 362     return offset, winmap_size, winmap
 363
 364
 365 def win_inventory():
 366     win_size = next(win["size"] for win in windows
 367                                 if win["func"] == win_inventory)
 368     winmap = []
 369     winmap_size = [0, win_size[1]]
 370     for line in world_data["inventory"]:
 371         winmap_size[1] = winmap_size[1] if len(line) <= winmap_size[1] \
 372             else len(line)
 373     count = 0
 374     for line in world_data["inventory"]:
 375         padding_size = winmap_size[1] - len(line)
 376         line += (" " * padding_size)
 377         if count == world_data["inventory_selection"]:
 378             line_new = []
 379             for x in range(len(line)):
 380                 line_new += [(line[x], curses.A_REVERSE)]
 381             line = line_new
 382         winmap += line
 383         winmap_size[0] = winmap_size[0] + 1
 384         count += 1
 385     offset = [0, 0]
 386     if world_data["inventory_selection"] > win_size[0]/2:
 387         if world_data["inventory_selection"] < len(world_data["inventory"]) \
 388             - win_size[0]/2:
 389             offset[0] = world_data["inventory_selection"] - int(win_size[0]/2)
 390         else:
 391             offset[0] = len(world_data["inventory"]) - win_size[0]
 392     return offset, winmap_size, winmap
 393
 394
 395 def win_look():
 396     winmap = ""
 397     winmap_size = [0, 0]
 398     for line in world_data["look"]:
 399         winmap_size[1] = winmap_size[1] if len(line) <= winmap_size[1] \
 400             else len(line)
 401     for line in world_data["look"]:
 402         padding_size = winmap_size[1] - len(line)
 403         winmap += line + (" " * padding_size)
 404         winmap_size[0] = winmap_size[0] + 1
 405     offset = [0, 0]
 406     return offset, winmap_size, winmap
 407
 408
 409 def win_info():
 410     winmap = "T: " + str(world_data["turn"]) \
 411         + " H: " + str(world_data["lifepoints"]) \
 412         + " S: " + str(world_data["satiation"])
 413     winmap_size = [1, len(winmap)]
 414     offset = [0, 0]
 415     return offset, winmap_size, winmap
 416
 417
 418 def win_log():
 419     win_size = next(win["size"] for win in windows if win["func"] == win_log)
 420     offset = [0, 0]
 421     winmap = ""
 422     number_of_lines = 0
 423     for line in world_data["log"]:
 424         number_of_lines += math.ceil(len(line) / win_size[1])
 425         padding_size = win_size[1] - (len(line) % win_size[1])
 426         winmap += line + (padding_size * " ")
 427     if number_of_lines < win_size[0]:
 428         winmap = (" " * win_size[1] * (win_size[0] - number_of_lines)) + winmap
 429         number_of_lines = win_size[0]
 430     elif number_of_lines > win_size[0]:
 431         offset[0] = number_of_lines - win_size[0]
 432     winmap_size = [number_of_lines, win_size[1]]
 433     return offset, winmap_size, winmap
 434
 435
 436 def command_quit():
 437     command_sender("QUIT")()
 438     raise SystemExit("Received QUIT command, forwarded to server, leaving.")
 439
 440
 441 def command_toggle_look_mode():
 442     if not world_data["look_mode"]:
 443         world_data["look_mode"] = True
 444     else:
 445         world_data["look_mode"] = False
 446         world_data["map_center"] = world_data["avatar_position"]
 447         query_mapcell()
 448
 449
 450 def command_sender(string, int_field=None):
 451     def command_send():
 452         int_string = ""
 453         if int_field:
 454             int_string = " " + str(world_data[int_field])
 455         io["file_out"].write(string + int_string + "\n")
 456         io["file_out"].flush()
 457     return command_send
 458
 459
 460 def command_looker(string):
 461     def command_look():
 462         if string == "west" \
 463                 and world_data["map_center"][1] > 0:
 464             world_data["map_center"][1] -= 1
 465         elif string == "east" \
 466                 and world_data["map_center"][1] < world_data["map_size"] - 1:
 467             world_data["map_center"][1] += 1
 468         else:
 469             y_unevenness = world_data["map_center"][0] % 2
 470             y_evenness = int(not(y_unevenness))
 471             if string[6:] == "west" and \
 472                     world_data["map_center"][1] > -y_unevenness:
 473                 if string[:5] == "north" and world_data["map_center"][0] > 0:
 474                     world_data["map_center"][0] -= 1
 475                     world_data["map_center"][1] -= y_evenness
 476                 if string[:5] == "south" and world_data["map_center"][0] \
 477                         < world_data["map_size"] - 1:
 478                     world_data["map_center"][0] += 1
 479                     world_data["map_center"][1] -= y_evenness
 480             elif string[6:] == "east" and world_data["map_center"][1] \
 481                     < world_data["map_size"] - y_unevenness:
 482                 if string[:5] == "north" and world_data["map_center"][0] > 0:
 483                     world_data["map_center"][0] -= 1
 484                     world_data["map_center"][1] += y_unevenness
 485                 if string[:5] == "south" and world_data["map_center"][0] \
 486                         < world_data["map_size"] - 1:
 487                     world_data["map_center"][0] += 1
 488                     world_data["map_center"][1] += y_unevenness
 489         query_mapcell()
 490     return command_look
 491
 492
 493 def command_inventory_selector(string):
 494     def command_inventory_select():
 495         logfile = open("logfile", "a")
 496         logfile.write(string + "\n")
 497         logfile.close()
 498         if string == "up" and world_data["inventory_selection"] > 0:
 499             world_data["inventory_selection"] -= 1
 500         elif string == "down" and world_data["inventory_selection"] \
 501                 < len(world_data["inventory"]) - 1:
 502             world_data["inventory_selection"] += 1
 503     return command_inventory_select
 504
 505
 506 windows = [
 507     {"config": [1, 33], "func": win_info},
 508     {"config": [-7, 33], "func": win_log},
 509     {"config": [4, 16], "func": win_inventory},
 510     {"config": [4, 16], "func": win_look},
 511     {"config": [0, -34], "func": win_map}
 512 ]
 513 io = {
 514     "path_out": "server/in",
 515     "path_in": "server/out",
 516     "path_worldstate": "server/worldstate"
 517 }
 518 commands = {
 519     "D": (command_sender("drop", "inventory_selection"),),
 520     "P": (command_sender("pick_up"),),
 521     "Q": (command_quit,),
 522     "W": (command_sender("wait"),),
 523     "c": (command_sender("move south-east"), command_looker("south-east")),
 524     "d": (command_sender("move east"), command_looker("east")),
 525     "e": (command_sender("move north-east"), command_looker("north-east")),
 526     "j": (command_inventory_selector("down"),),
 527     "k": (command_inventory_selector("up"),),
 528     "l": (command_toggle_look_mode,),
 529     "s": (command_sender("move west"), command_looker("west")),
 530     "w": (command_sender("move north-west"), command_looker("north-west")),
 531     "x": (command_sender("move south-west"), command_looker("south-west")),
 532 }
 533 message_queue = {
 534     "open_end": False,
 535     "messages": []
 536 }
 537 world_data = {
 538     "avatar_position": [-1, -1],
 539     "fov_map": "",
 540     "inventory": [],
 541     "inventory_selection": 0,
 542     "lifepoints": -1,
 543     "look": [],
 544     "look_mode": False,
 545     "log": [],
 546     "map_center": [-1, -1],
 547     "map_size": 0,
 548     "mem_map": "",
 549     "satiation": -1,
 550     "turn": -1
 551 }
 552 sep_size = 1  # Width of inter-window borders and title bars.
 553 stdscr = None
 554 screen_size = [0,0]
 555
 556
 557 try:
 558     if (not os.access(io["path_out"], os.F_OK)):
 559         msg = "No server input file found at " + io["path_out"] + "."
 560         raise SystemExit(msg)
 561     io["file_out"] = open(io["path_out"], "a")
 562     io["file_in"] = open(io["path_in"], "r")
 563     curses.wrapper(cursed_main)
 564 except SystemExit as exit:
 565     print("ABORTING: " + exit.args[0])
 566 except:
 567     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
 568     raise
 569 finally:
 570     if "file_out" in io:
 571         io["file_out"].close()
 572     if "file_in" in io:
 573         io["file_in"].close()