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51 行
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from abc import ABC, abstractmethod
from enum import IntEnum
class SideChannelType(IntEnum):
FloatProperties = 1
EngineSettings = 2
# Raw bytes channels should start here to avoid conflicting with other
# Unity ones.
RawBytesChannelStart = 1000
# custom side channels should start here to avoid conflicting with Unity
# ones.
UserSideChannelStart = 2000
class SideChannel(ABC):
"""
The side channel just get access to a bytes buffer that will be shared
between C# and Python. For example, We will create a specific side channel
for properties that will be a list of string (fixed size) to float number,
that can be modified by both C# and Python. All side channels are passed
to the Env object at construction.
"""
def __init__(self):
self.message_queue = []
def queue_message_to_send(self, data: bytearray) -> None:
"""
Queues a message to be sent by the environment at the next call to
step.
"""
self.message_queue.append(data)
@abstractmethod
def on_message_received(self, data: bytes) -> None:
"""
Is called by the environment to the side channel. Can be called
multiple times per step if multiple messages are meant for that
SideChannel.
"""
pass
@property
@abstractmethod
def channel_type(self) -> int:
"""
:return:The type of side channel used. Will influence how the data is
processed in the environment.
"""
pass