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des.py
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des.py
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"""Discrete Event Simlator (RoomDes) for the Room."""
from copy import deepcopy
from pprint import pprint
from .utils import read_json_prod as read_json
from .utils import write_json
def fill_des_resources(des_size: str) -> None:
"""Fill resources
Args:
des_size
"""
des = RoomDes(des_size=des_size, check_resources=False)
des.run()
resources = {
foo: 9999
for foo in set(
[bar["object_location"] for foo in des.states for bar in foo.values()]
)
}
des.config["resources"] = deepcopy(resources)
write_json(des.config, f"./room_env/data/des-config-{des_size}.json")
resources = []
des = RoomDes(des_size=des_size, check_resources=True)
resources.append(deepcopy(des.resources))
while des.until > 0:
des.step()
des.until -= 1
resources.append(deepcopy(des.resources))
object_locations = deepcopy(list(des.resources.keys()))
resources = {
object_location: 9999
- min([resource[object_location] for resource in resources])
for object_location in object_locations
}
des.config["resources"] = deepcopy(resources)
write_json(des.config, f"./room_env/data/des-config-{des_size}.json")
des = RoomDes(des_size=des_size, check_resources=True)
class RoomDes:
"""RoomDes Class.
This class is very simple at the moment. When it's initialized, it places N_{humans}
in the room. They periodically move to other locations. They also periodically
change the location of their objects they are holding. At the moment,
everything is deterministic.
"""
def __init__(self, des_size: str = "l", check_resources: bool = True) -> None:
"""Instantiate the class.
Args:
des_size: configuartion for the RoomDes simulation. It should be either size or
dict. size can be "xxs (extra extra small", "xs (extra small)", "s (small)",
"m (medium)", or "l (large)".
{"components": <COMPONENTS>, "resources": <RESOURCES>,
"last_timestep": <LAST_TIMESTEP>,
"semantic_knowledge": <SEMANTIC_KNOWLEDGE>, "complexity", <COMPLEXITY>}
<COMPONENTS> should look like this:
<RESOURCES> should look like this:
{'desk': 2, 'A': 10000, 'lap': 10000}
<LAST_TIMESTEP> is a number where the DES terminates.
<SEMANTIC_KNOWLEDGE> is a dictionary of semantic knowledge.
<COMPLEXITY> is defined as num_humans * num_total_objects
* maximum_num_objects_per_human * maximum_num_locations_per_object
check_resources: whether to check if the resources are depleted or not.
"""
if isinstance(des_size, str):
assert des_size.lower() in [
"dev",
"xxs",
"xs",
"s",
"m",
"l",
]
self.config = read_json(f"./data/des-config-{des_size.lower()}-v1.json")
else:
self.config = des_size
self.check_resources = check_resources
self._initialize()
def _initialize(self) -> None:
"""Initialize the simulator."""
self.components = deepcopy(self.config["components"])
self.resources = deepcopy(self.config["resources"])
self.semantic_knowledge = [
[key, "atlocation", val]
for key, val in self.config["semantic_knowledge"].items()
]
self.humans = []
self.objects = []
self.object_locations = []
for human, obj_locs in self.components.items():
self.humans.append(human)
for obj, loc in obj_locs:
self.objects.append(obj)
self.object_locations.append(loc)
self.humans = sorted(list(set(self.humans)))
self.objects = sorted(list(set(self.objects)))
self.object_locations = sorted(list(set(self.object_locations)))
self.until = deepcopy(self.config["last_timestep"])
self.states = []
self.state = {}
for human in self.components:
self.state[human] = {}
(
self.state[human]["object"],
self.state[human]["object_location"],
) = self.components[human][0]
if self.check_resources:
self.resources[self.state[human]["object_location"]] -= 1
self.state[human]["current_time"] = 0
self.states.append(deepcopy(self.state))
if self.check_resources:
for key, val in self.resources.items():
assert val >= 0, f"{key}: {val}"
self.events = []
self.current_time = 0
def step(self) -> None:
"""Proceed time by one."""
previous_state = deepcopy(self.state)
previous_resources = deepcopy(self.resources)
self.current_time += 1
for human in self.state:
object_location_idx = self.current_time % len(self.components[human])
self.state[human]["current_time"] = self.current_time
if self.check_resources:
self.resources[self.state[human]["object_location"]] += 1
(
self.state[human]["object"],
self.state[human]["object_location"],
) = self.components[human][object_location_idx]
if self.check_resources:
self.resources[self.state[human]["object_location"]] -= 1
if self.check_resources:
for key, val in self.resources.items():
assert val >= 0, f"{key}: {val}"
current_state = deepcopy(self.state)
current_resources = deepcopy(self.resources)
self.event = self.check_event(
previous_state, previous_resources, current_state, current_resources
)
self.events.append(deepcopy(self.event))
self.states.append(deepcopy(self.state))
def check_event(
self,
previous_state: dict,
previous_resources: dict,
current_state: dict,
current_resources: dict,
) -> dict:
"""Check if any events have occured between the two consecutive states.
Args:
previous_state
previous_resources
current_state
current_resources
Returns:
event
"""
assert len(previous_state) == len(current_state)
assert len(previous_resources) == len(current_resources)
state_changes = {}
resource_changes = {}
humans = list(previous_state)
for human in humans:
previous_object = previous_state[human]["object"]
previous_object_location = previous_state[human]["object_location"]
previous_time = previous_state[human]["current_time"]
current_object = current_state[human]["object"]
current_object_location = current_state[human]["object_location"]
current_time = current_state[human]["current_time"]
assert current_time == previous_time + 1
state_changes[human] = {}
if previous_object != current_object:
state_changes[human]["object"] = {
"previous": previous_object,
"current": current_object,
}
if previous_object_location != current_object_location:
state_changes[human]["object_location"] = {
"previous": previous_object_location,
"current": current_object_location,
}
if len(state_changes[human]) == 0:
del state_changes[human]
else:
state_changes[human]["current_time"] = current_time
for resource in previous_resources:
previous_amount = previous_resources[resource]
current_amount = current_resources[resource]
if previous_amount != current_amount:
resource_changes[resource] = current_amount - previous_amount
return {"state_changes": state_changes, "resource_changes": resource_changes}
def run(self, debug: bool = False) -> None:
"""Run until the RoomDes terminates."""
while self.until > 0:
self.step()
if debug:
pprint(self.event)
self.until -= 1