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812398b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | # Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
from __future__ import annotations
try:
from openenv.core.client_types import StepResult
from openenv.core.env_client import EnvClient
from openenv.core.env_server.types import State
except ImportError:
from core.client_types import StepResult
from core.env_client import EnvClient
from core.env_server.types import State
from .models import GridWorldAction, GridWorldObservation, MoveAction
class GridWorldEnv(EnvClient[GridWorldAction, GridWorldObservation, State]):
"""
A WebSocket-based client for interacting with the GridWorld environment.
This client inherits from EnvClient and is configured with the
GridWorld Pydantic models for automatic (de)serialization.
"""
def step_move(self, move: MoveAction) -> StepResult[GridWorldObservation]:
"""
Helper method to send a simple move action.
Args:
move: The MoveAction enum (e.g., MoveAction.UP)
"""
action_payload = GridWorldAction(action=move)
# 'super().step' comes from the base HTTPEnvClient
return super().step(action_payload)
# --- REQUIRED ABSTRACT METHODS (The Missing Pieces) ---
def _step_payload(self, action: GridWorldAction) -> dict:
"""Convert the Pydantic action model to a dictionary."""
# Uses Pydantic v2 'model_dump'. If this fails, try 'action.dict()'
return action.model_dump()
def _parse_result(self, data: dict) -> StepResult[GridWorldObservation]:
"""Convert the raw dictionary response into a typed StepResult."""
return StepResult(
observation=GridWorldObservation(
**data["observation"], reward=data["reward"], done=data["done"]
),
reward=data["reward"],
done=data["done"],
metadata=data.get("metadata"),
)
def _parse_state(self, data: dict) -> State:
"""Convert the raw state dictionary into a State object."""
return State(**data)
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