code/datums/ai/basic_mobs/target_priority_strategies/_target_priority_strategy.dm

/datum/target_priority_strategy	Target priority datum, exists to allow target acquisition behaviors to have custom selection policies. Singleton.
/datum/target_priority_strategy/nearest	Selects the closest candidate.
/datum/target_priority_strategy/most_wounded	Selects the living candidate with the lowest health.
/datum/target_priority_strategy/prioritize_trait	Selects candidates carrying the trait configured in trait_key before candidates without it.
/datum/target_priority_strategy/type_weighted	Chooses a nonempty target type tier by weight, then randomly chooses a target within that tier. This prevents a large number of low-priority candidates from drowning out one high-priority candidate.