--- /dev/null
+import ctypes
+
+
+def mv_yx_in_dir_legal(dir, y, x):
+ """Wrapper around libpr.mv_yx_in_dir_legal to simplify its use."""
+ dir_c = dir.encode("ascii")[0]
+ test = libpr.mv_yx_in_dir_legal_wrap(dir_c, y, x)
+ if -1 == test:
+ raise RuntimeError("Too much wrapping in mv_yx_in_dir_legal_wrap()!")
+ return (test, libpr.result_y(), libpr.result_x())
+
+
+class RandomnessIO:
+ """"Interface to libplomrogue's pseudo-randomness generator."""
+
+ def set_seed(self, seed):
+ libpr.seed_rrand(1, seed)
+
+ def get_seed(self):
+ return libpr.seed_rrand(0, 0)
+
+ def next(self):
+ return libpr.rrand()
+
+ seed = property(get_seed, set_seed)
+
+
+def integer_test(val_string, min, max=None):
+ """Return val_string if integer >= min & (if max set) <= max, else None."""
+ try:
+ val = int(val_string)
+ if val < min or (max is not None and val > max):
+ raise ValueError
+ return val
+ except ValueError:
+ msg = "Ignoring: Please use integer >= " + str(min)
+ if max is not None:
+ msg += " and <= " + str(max)
+ msg += "."
+ print(msg)
+ return None
+
+
+def id_setter(id, category, id_store=False, start_at_1=False):
+ """Set ID of object of category to manipulate ID. Unused? Create new one.
+ The ID is stored as id_store.id (if id_store is set). If the integer of the
+ input is valid (if start_at_1, >= 0, else >= -1), but <0 or (if start_at_1)
+ <1, calculate new ID: lowest unused ID >=0 or (if start_at_1) >= 1. None is
+ always returned when no new object is created, else the new object's ID.
+ """
+ from server.config.world_data import world_db
+ min = 0 if start_at_1 else -1
+ if str == type(id):
+ id = integer_test(id, min)
+ if None != id:
+ if id in world_db[category]:
+ if id_store:
+ id_store.id = id
+ return None
+ else:
+ if (start_at_1 and 0 == id) \
+ or ((not start_at_1) and (id < 0)):
+ id = 0 if start_at_1 else -1
+ while 1:
+ id = id + 1
+ if id not in world_db[category]:
+ break
+ if id_store:
+ id_store.id = id
+ return id
+
+
+def prep_library():
+ """Prepare ctypes library at ./libplomrogue.so"""
+ import os
+ libpath = ("./libplomrogue.so")
+ if not os.access(libpath, os.F_OK):
+ raise SystemExit("No library " + libpath + ", run ./build.sh first?")
+ libpr = ctypes.cdll.LoadLibrary(libpath)
+ libpr.seed_rrand.restype = ctypes.c_uint32
+ return libpr
+
+
+def c_pointer_to_bytearray(ba):
+ """Return C char * pointer to ba."""
+ type = ctypes.c_char * len(ba)
+ return type.from_buffer(ba)
+
+
+def parse_command_line_arguments():
+ """Return settings values read from command line arguments."""
+ import argparse
+ parser = argparse.ArgumentParser()
+ parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
+ action='store')
+ parser.add_argument('-l', nargs="?", const="save", dest='savefile',
+ action="store")
+ parser.add_argument('-v', dest='verbose', action='store_true')
+ opts, unknown = parser.parse_known_args()
+ return opts
+
+
+libpr = prep_library()
+rand = RandomnessIO()
+opts = parse_command_line_arguments()