def _load_pc_schema(self, schema):
try:
self.pc_template = schema
except KeyError as e:
raise SchemaError(
'pc state template missing required section ``state``',
schema=schema) from e
def load_events():
events = list()
try:
event_id = schema['state']['encounter_event']
try:
get_eventstream_by_id(event_id)
except ObjectNotFoundError as e:
raise ObjectNotFoundError(
"tried to load npc object (id ``{0}``) with a "
"nonexistant event_id in its event registry - "
"requested id was ``{1}``"
.format(self.id_, event_id),
schema=schema) from e
events.append(event_id)
except KeyError as e:
if e.args[0] == 'events':
# This is an error because eventless locales are not
# interactable and this error indicates that no events are
# attached to this npc.
raise SchemaError(
"tried to load npc object (id ``{0}``) with no"
" registered events".format(self.id_),
schema=schema)
raise
return events
def __init__(self, schema):
super().__init__(schema)
state_defaults = {
'counters': 0,
'flags': False
}
self.state = dict()
try:
self.state['encounter_event_id'] = \
schema['state']['encounter_event']
except KeyError:
raise SchemaError("{0} schema missing required initial state "
"``encounter_event``".format(type(self)),
schema=schema)
try:
self.event_path = schema['load_events']
except KeyError:
self.event_path = None
for key, default in state_defaults.items():
try:
self.state[key] = {
id_: default for id_ in schema['state'][key]
}
except KeyError:
pass
def __init__(self, schema):
super().__init__(schema)
try:
self.state['victory_event_id'] = schema['state']['victory_event']
self.state['defeat_event_id'] = schema['state']['defeat_event']
except KeyError as e:
raise SchemaError(
"{0} schema missing required field ``{1}``".format(
type(self), e.args[0]),
schema=schema) from e
self.initialized = True
def parse(schema):
if type(schema) == str:
return Expr(schema)
elif type(schema) == list:
return All(schema)
elif type(schema) == dict:
try:
return Any(schema['any'])
except KeyError:
return All(schema['all'])
else:
raise SchemaError("conditional schema tree is of an unrecognized type",
schema=schema)
def _load_schema(self, path, schema):
schema_handlers = {
'town': town.Town,
'dungeon': dungeon.Dungeon,
'npc': npc.NPC,
'monster': monster.Monster,
'event_stream': eventstream.EventStream,
'world': self._load_world_schema,
'pc': self._load_pc_schema
}
try:
schema_handlers[schema['type']](schema)
except KeyError as e:
if e.args[0] == 'type':
raise SchemaError(
'unable to load schema from {0} with missing '
'``type`` parameter'.format(path), schema=schema)\
from e
else:
raise SchemaError(
'unable to load schema from {0}. ``{1}`` is not a '
'supported object type.'.format(path, schema['type']),
schema=schema) from e
def load_strings():
strings = dict()
try:
for string in schema['state']['strings']:
try:
pair = string.popitem()
strings[pair[0]] = str(pair[1])
except AttributeError:
strings[string] = ''
except (TypeError, IndexError):
raise SchemaError(
"malformed string state parameter ``{0}`` in town"
" object (id ``{1}``)".format(pair[0], self.id_),
schema=schema)
except KeyError:
pass
return strings
def load_numbers():
numbers = dict()
try:
for number in schema['state']['numbers']:
try:
pair = number.popitem()
numbers[pair[0]] = bool(pair[1])
except AttributeError:
numbers[number] = 0.0
except (TypeError, IndexError):
raise SchemaError(
"malformed number state parameter ``{0}`` in town "
"object (id ``{1}``)".format(pair[0], self.id_),
schema=schema)
except KeyError:
pass
return numbers
def load_counters():
counters = dict()
try:
for counter in schema['state']['counters']:
try:
pair = counter.popitem()
counters[pair[0]] = int(pair[1])
except AttributeError:
counters[counter] = 0
except (TypeError, IndexError):
raise SchemaError(
"malformed counter state parameter ``{0}`` in town"
" object (id ``{1}``)".format(pair[0], self.id_),
schema=schema)
except KeyError:
pass
return counters
def __init__(self, schema):
super().__init__()
self.id_ = schema['id']
try:
self.events = [
Event.construct(item, self) for item in schema['events']
]
except KeyError as e:
raise SchemaError("encountered an unknown event type ``{0}`` "
"while attempting to load event ``{1}``"
.format(e.args[0], schema['id']))
global eventstream_registry
if schema['id'] in eventstream_registry:
raise LoadError("attempted to load event_stream ``{0}`` but that "
"event id already exists".format(schema['id']))
self.initialized = True
eventstream_registry[self.id_] = self
def load_flags():
flags = dict()
try:
for flag in schema['state']['flags']:
try:
pair = flag.popitem()
flags[pair[0]] = bool(pair[1])
except AttributeError:
# this is expected to occur because this flag has no
# associated value (i.e. it's implicitly false)
flags[flag] = False
except (TypeError, IndexError):
raise SchemaError(
"malformed flag state parameter ``{0}`` in town"
" object (id ``{1}``)".format(pair[0], self.id_),
schema=schema)
except KeyError:
pass
return flags
def load_events():
events = list()
try:
for event_id in schema['state']['events']:
if not is_eventstream_loaded(event_id):
raise ObjectNotFoundError(
"tried to load town object (id ``{0}``) with a "
"nonexistant event_id in its event registry - "
"requested id was ``{1}``".format(
self.id_, event_id),
schema=schema)
events.append(event_id)
except KeyError as e:
if e.args[0] == 'events':
raise SchemaError(
"tried to load town object (id ``{0}``) with no"
" registered events".format(self.id_),
schema=schema)
raise
return events
def __init__(self, schema_root):
super().__init__()
file_paths = glob.glob(os.path.join(schema_root, '*.yaml'))
loaded_paths = list()
subdirs = [d.name for d in os.scandir(schema_root) if d.is_dir()]
for subdir in subdirs:
file_paths.extend(
glob.glob(os.path.join(schema_root, subdir, '*.yaml')))
schema_types = [
'event_stream', 'town', 'dungeon', 'npc', 'monster', 'world', 'pc'
]
schema_sets = {key: [] for key in schema_types}
while file_paths:
path = file_paths.pop()
loaded_paths.append(path)
with open(path, 'r') as file:
loaded = list(yaml.safe_load_all(file.read()))
for schema in loaded:
try:
for path_ in schema['load_paths']:
additional_path = os.path.join(os.path.dirname(path),
path_)
if additional_path not in loaded_paths:
file_paths.extend(glob.glob(additional_path))
loaded_paths.append(additional_path)
except KeyError:
pass
try:
for schema_type in schema_types:
schema_sets[schema_type].extend(
filter(lambda x: x['type'] == schema_type, loaded))
except KeyError:
raise SchemaError("An object schema at path ``{0}`` is "
"missing a 'type'` property")
for schema_type in schema_types:
for schema in schema_sets[schema_type]:
self._load_schema(schema_type, schema)
self.world_template = None
self.id_ = hashlib.sha256(repr(
self.get_state_template()).encode()).hexdigest()
self.initialized = True
def __init__(self, schema):
def load_flags():
flags = dict()
try:
for flag in schema['state']['flags']:
try:
pair = flag.popitem()
flags[pair[0]] = bool(pair[1])
except AttributeError:
# this is expected to occur because this flag has no
# associated value (i.e. it's implicitly false)
flags[flag] = False
except (TypeError, IndexError):
raise SchemaError(
"malformed flag state parameter ``{0}`` in npc"
" object (id ``{1}``)".format(pair[0], self.id_),
schema=schema)
except KeyError:
pass
return flags
def load_counters():
counters = dict()
try:
for counter in schema['state']['counters']:
try:
pair = counter.popitem()
counters[pair[0]] = int(pair[1])
except AttributeError:
counters[counter] = 0
except (TypeError, IndexError):
raise SchemaError(
"malformed counter state parameter ``{0}`` in npc"
" object (id ``{1}``)".format(pair[0], self.id_),
schema=schema)
except KeyError:
pass
return counters
def load_numbers():
numbers = dict()
try:
for number in schema['state']['numbers']:
try:
pair = number.popitem()
numbers[pair[0]] = bool(pair[1])
except AttributeError:
numbers[number] = 0.0
except (TypeError, IndexError):
raise SchemaError(
"malformed number state parameter ``{0}`` in npc "
"object (id ``{1}``)".format(pair[0], self.id_),
schema=schema)
except KeyError:
pass
return numbers
def load_strings():
strings = dict()
try:
for string in schema['state']['strings']:
try:
pair = string.popitem()
strings[pair[0]] = str(pair[1])
except AttributeError:
strings[string] = ''
except (TypeError, IndexError):
raise SchemaError(
"malformed string state parameter ``{0}`` in npc"
" object (id ``{1}``)".format(pair[0], self.id_),
schema=schema)
except KeyError:
pass
return strings
def load_events():
events = list()
try:
event_id = schema['state']['encounter_event']
try:
get_eventstream_by_id(event_id)
except ObjectNotFoundError as e:
raise ObjectNotFoundError(
"tried to load npc object (id ``{0}``) with a "
"nonexistant event_id in its event registry - "
"requested id was ``{1}``"
.format(self.id_, event_id),
schema=schema) from e
events.append(event_id)
except KeyError as e:
if e.args[0] == 'events':
# This is an error because eventless locales are not
# interactable and this error indicates that no events are
# attached to this npc.
raise SchemaError(
"tried to load npc object (id ``{0}``) with no"
" registered events".format(self.id_),
schema=schema)
raise
return events
super().__init__(schema)
try:
self.id_ = schema['id']
except KeyError:
raise SchemaError("tried to load town object with no id field",
schema=schema)
self.state['flags'] = load_flags()
self.state['counters'] = load_counters()
self.state['numbers'] = load_numbers()
self.state['strings'] = load_strings()
self.state['events'] = load_events()
self.initialized = True
npc_registry[self.id_] = self