feat: add weak-villager and damaged-roof village needs

simulation/opportunities/VillageOpportunitySystem.gd

@@ -2,6 +2,7 @@ class_name VillageOpportunitySystem
 extends RefCounted
 
 const CARE_HUNGER_THRESHOLD := 80.0
+const WEAK_ENERGY_THRESHOLD := 25.0
 
 var opportunities: Array[OpportunityStateRecord] = []
 var next_opportunity_id := 0
@@ -29,7 +30,13 @@ func consider_event(
 		return opened
 	if woodpile == null:
 		return null
-	return _try_open_wood(event, current_tick, woodpile, npcs, knowledge_system)
+	opened = _try_open_wood(event, current_tick, woodpile, npcs, knowledge_system)
+	if opened != null:
+		return opened
+	opened = _try_open_weak(event, current_tick, pantry, npcs, knowledge_system)
+	if opened != null:
+		return opened
+	return _try_open_roof(event, current_tick, woodpile, npcs, knowledge_system)
 
 
 func maintain_open_opportunity(
@@ -42,7 +49,14 @@ func maintain_open_opportunity(
 	var opportunity := get_open_opportunity()
 	if opportunity == null or current_tick < opportunity.get_created_tick():
 		return null
-	if opportunity.get_opportunity_type() != SimulationIds.OPPORTUNITY_SUPPLY_MISSING_WOOD:
+	if (
+		opportunity.get_opportunity_type()
+		not in [
+			SimulationIds.OPPORTUNITY_SUPPLY_MISSING_WOOD,
+			SimulationIds.OPPORTUNITY_FEED_WEAK_VILLAGER,
+			SimulationIds.OPPORTUNITY_REPAIR_HOME_ROOF,
+		]
+	):
 		return null
 	var interested := _find_npc(opportunity.get_interested_npc_id(), npcs)
 	if interested == null or interested.is_dead:
@@ -53,15 +67,17 @@ func maintain_open_opportunity(
 			)
 			else null
 		)
-	var target_storage := _get_target_storage(opportunity, pantry, woodpile)
-	var condition_is_stale := (
-		target_storage == null
-		or (
-			target_storage.get_amount(opportunity.get_resource_id())
-			>= opportunity.get_target_amount()
+	var condition_is_stale := current_tick - opportunity.get_created_tick() >= maxi(max_age, 1)
+	if opportunity.get_opportunity_type() != SimulationIds.OPPORTUNITY_FEED_WEAK_VILLAGER:
+		var target_storage := _get_target_storage(opportunity, pantry, woodpile)
+		condition_is_stale = (
+			condition_is_stale
+			or target_storage == null
+			or (
+				target_storage.get_amount(opportunity.get_resource_id())
+				>= opportunity.get_target_amount()
+			)
 		)
-		or current_tick - opportunity.get_created_tick() >= maxi(max_age, 1)
-	)
 	if not condition_is_stale:
 		return null
 	return (
@@ -452,6 +468,95 @@ func _try_open_wood(
 	return opportunity
 
 
+func _try_open_weak(
+	event: EconomicEventRecord,
+	current_tick: int,
+	pantry: StorageStateRecord,
+	npcs: Array[SimNPC],
+	knowledge_system: EventKnowledgeSystem
+) -> OpportunityStateRecord:
+	if knowledge_system == null or get_open_opportunity() != null:
+		return null
+	if not _is_weak_trigger(event):
+		return null
+	if pantry.get_amount(SimulationIds.RESOURCE_FOOD) > 0.0:
+		return null
+	var actor := _find_npc(int(event.data["actor_id"]), npcs)
+	if (
+		actor == null
+		or actor.is_dead
+		or actor.hunger < CARE_HUNGER_THRESHOLD
+		or actor.energy >= WEAK_ENERGY_THRESHOLD
+		or not knowledge_system.knows_event(actor.id, int(event.data["event_id"]))
+	):
+		return null
+	var opportunity := OpportunityStateRecord.create(
+		next_opportunity_id,
+		current_tick,
+		int(event.data["event_id"]),
+		actor.id,
+		OpportunityStateRecord.DEFAULT_TARGET_AMOUNT,
+		SimulationIds.OPPORTUNITY_FEED_WEAK_VILLAGER,
+		SimulationIds.STORAGE_VILLAGE_PANTRY,
+		SimulationIds.RESOURCE_FOOD
+	)
+	next_opportunity_id += 1
+	opportunities.append(opportunity)
+	return opportunity
+
+
+func _try_open_roof(
+	event: EconomicEventRecord,
+	current_tick: int,
+	woodpile: StorageStateRecord,
+	npcs: Array[SimNPC],
+	knowledge_system: EventKnowledgeSystem
+) -> OpportunityStateRecord:
+	if knowledge_system == null or get_open_opportunity() != null:
+		return null
+	if not _is_home_damaged_trigger(event):
+		return null
+	if (
+		woodpile.get_amount(SimulationIds.RESOURCE_WOOD)
+		>= OpportunityStateRecord.DEFAULT_TARGET_AMOUNT
+	):
+		return null
+	var actor := _find_npc(int(event.data["actor_id"]), npcs)
+	if (
+		actor == null
+		or actor.is_dead
+		or not knowledge_system.knows_event(actor.id, int(event.data["event_id"]))
+	):
+		return null
+	var opportunity := OpportunityStateRecord.create(
+		next_opportunity_id,
+		current_tick,
+		int(event.data["event_id"]),
+		actor.id,
+		OpportunityStateRecord.DEFAULT_TARGET_AMOUNT,
+		SimulationIds.OPPORTUNITY_REPAIR_HOME_ROOF,
+		SimulationIds.STORAGE_VILLAGE_WOODPILE,
+		SimulationIds.RESOURCE_WOOD
+	)
+	next_opportunity_id += 1
+	opportunities.append(opportunity)
+	return opportunity
+
+
+static func _is_weak_trigger(event: EconomicEventRecord) -> bool:
+	return (
+		StringName(event.data["event_type"]) == SimulationIds.EVENT_VILLAGER_WEAK
+		and int(event.data["actor_id"]) >= 0
+	)
+
+
+static func _is_home_damaged_trigger(event: EconomicEventRecord) -> bool:
+	return (
+		StringName(event.data["event_type"]) == SimulationIds.EVENT_HOME_DAMAGED
+		and int(event.data["actor_id"]) >= 0
+	)
+
+
 func _try_resolve(
 	event: EconomicEventRecord,
 	pantry: StorageStateRecord,
@@ -462,6 +567,17 @@ func _try_resolve(
 	var opportunity := get_open_opportunity()
 	if opportunity == null:
 		return null
+	if (
+		opportunity.get_opportunity_type() == SimulationIds.OPPORTUNITY_FEED_WEAK_VILLAGER
+		and _is_valid_supply(event, opportunity, npcs, resource_states)
+	):
+		if int(event.data["tick"]) < opportunity.get_created_tick():
+			return null
+		if int(event.data["event_id"]) <= opportunity.get_trigger_event_id():
+			return null
+		if not opportunity.resolve(int(event.data["event_id"]), int(event.data["tick"])):
+			return null
+		return opportunity
 	var target_storage := _get_target_storage(opportunity, pantry, woodpile)
 	if (
 		target_storage == null
@@ -528,6 +644,13 @@ static func _is_valid_supply(
 	npcs: Array[SimNPC],
 	resource_states: Dictionary
 ) -> bool:
+	if opportunity.get_opportunity_type() == SimulationIds.OPPORTUNITY_FEED_WEAK_VILLAGER:
+		return (
+			StringName(event.data["event_type"]) == SimulationIds.EVENT_ITEM_CONSUMED
+			and int(event.data["actor_id"]) == opportunity.get_interested_npc_id()
+			and StringName(event.data["item_id"]) == SimulationIds.RESOURCE_FOOD
+			and float(event.data["amount"]) > 0.0
+		)
 	if (
 		StringName(event.data["item_id"]) != opportunity.get_resource_id()
 		or StringName(event.data["destination_id"]) != opportunity.get_target_id()