Domain Reward Provider behaviour.

Domains implement this behaviour to declare what reward signals they emit and how to compute rewards from domain state and metrics.

Example Implementation

A domain bridge module implementing this behaviour:

-module(my_domain_bridge). -behaviour(domain_rewards).

reward_spec() -> [#{name => survival, weight => 1.0, level => l0, sign => reward, category => temporal, description => "Ticks survived"}, #{name => death, weight => 100.0, level => l0, sign => punishment, category => temporal, description => "Death penalty"}].

compute_rewards(DomainState, Metrics) -> Ticks = maps:get(ticks, Metrics, 0), Died = maps:get(died, Metrics, false), #{survival => Ticks * 1.0, death => case Died of true -> -100.0; false -> 0.0 end}.