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# 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.
"""
Data models for the Grid World Environment.
The grid_world environment is a simple test environment that echoes back messages.
"""
from typing import Optional
from enum import Enum
from openenv.core.env_server.types import Action, Observation, State
class MoveAction(str, Enum):
UP = "UP"
DOWN = "DOWN"
LEFT = "LEFT"
RIGHT = "RIGHT"
class GridWorldAction(Action):
"""Action for the Grid World environment"""
action: MoveAction
class GridWorldObservation(Observation):
"""Observation from the Grid World environment"""
# have the value to pass directly to the action
x: int = 0
y: int = 0
suggested_action: Optional[MoveAction] = None
message: str = ""
reward: Optional[float] = None
done: bool = False
class GridWorldState(State):
agent_x: int = 0
agent_y: int = 0
goal_x: int = 0
goal_y: int = 0
grid_size: int = 0
episode_steps: int = 0
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