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lit_sb3.wrappers.frame_skip

source module lit_sb3.wrappers.frame_skip

Classes

  • FrameSkip — Return only every skip-th frame (frameskipping).

source class FrameSkip(env: gym.Env, skip: int = 4)

Bases : gym.Wrapper

Return only every skip-th frame (frameskipping).

:param env: Gym environment. :param skip: Number of frames to skip (repeat action for).

Attributes

  • metadata : dict[str, Any] — attr:Env :attr:metadata.

  • render_mode : str | None — attr:Env :attr:render_mode.

  • spec : EnvSpec | None — attr:Env :attr:spec attribute with the WrapperSpec if the wrapper inherits from EzPickle.

  • action_space : spaces.Space[ActType] | spaces.Space[WrapperActType] — attr:Env :attr:action_space unless overwritten then the wrapper :attr:action_space is used.

  • observation_space : spaces.Space[ObsType] | spaces.Space[WrapperObsType] — attr:Env :attr:observation_space unless overwritten then the wrapper :attr:observation_space is used.

  • unwrapped : Env[ObsType, ActType] — Returns the base environment of the wrapper.

  • np_random_seed : int | None — attr:np_random_seed.

  • np_random : np.random.Generator — attr:Env :attr:np_random attribute.

Methods

  • step — Step the environment, repeating action and summing reward.

source method FrameSkip.step(action: Any) → GymStepReturn

Step the environment, repeating action and summing reward.

:param action: The action to repeat. :return: observation, cumulative reward, terminated, truncated, info.