coopihc.observation.CascadedObservationEngine.CascadedObservationEngine

class CascadedObservationEngine(engine_list, *args, **kwargs)

Bases: coopihc.observation.BaseObservationEngine.BaseObservationEngine

Cascades (serially) several observation engines.

Gamestate –> Engine1 –> Engine2 –> … –> EngineN –> Observation

Parameters

engine_list (list(Observation Engine)) – list of observation engines

Methods

default_value	Apply this decorator to use bundle.game_state as default value to observe if game_state = None
observe	Serial observations (i.e.
observe_from_substates
reset	reset _summary_

Attributes

action	returns the last action
bundle
observation	returns the last observation
unwrapped

property action

returns the last action

Returns

last action

Return type

State

static default_value(func)

Apply this decorator to use bundle.game_state as default value to observe if game_state = None

property observation

returns the last observation

Returns

last observation

Return type

State

observe(game_state)

Serial observations (i.e. output of an engine becomes input of the next one)

Parameters

game_state (State<coopihc.base.State.State) – game state

Returns

(observation, obs reward)

Return type

tuple(State<coopihc.base.State.State, float)

reset(random=True)

reset _summary_

Empty by default.

Parameters

random (bool, optional) – whether states internal to the observation engine are reset randomly, defaults to True. Useful in case of subclassing the Observation Engine.