feat: define action completion costs

simulation/definitions/ActionDefinition.gd

@@ -7,6 +7,8 @@ extends Resource
 @export var preferred_profession_id: StringName
 @export var target_type: StringName = SimulationIds.TARGET_ACTIVITY
 @export var resource_action_id: StringName
+@export var completion_cost_resource_id: StringName
+@export_range(0.0, 1000.0, 0.1) var completion_cost_amount := 0.0
 
 
 func validate() -> Array[String]:
@@ -26,4 +28,12 @@ func validate() -> Array[String]:
 		errors.append("target_type '%s' is invalid for '%s'" % [target_type, action_id])
 	if target_type == SimulationIds.TARGET_RESOURCE and resource_action_id.is_empty():
 		errors.append("resource_action_id is required for '%s'" % action_id)
+	if completion_cost_resource_id.is_empty() and completion_cost_amount > 0.0:
+		errors.append("completion cost resource is required for '%s'" % action_id)
+	if not completion_cost_resource_id.is_empty() and completion_cost_amount <= 0.0:
+		errors.append("completion cost amount must be positive for '%s'" % action_id)
 	return errors
+
+
+func has_completion_cost() -> bool:
+	return not completion_cost_resource_id.is_empty() and completion_cost_amount > 0.0

simulation/definitions/SimulationDefinitions.gd

@@ -129,4 +129,15 @@ static func validate() -> Array[String]:
 					% [definition.action_id, definition.resource_action_id]
 				)
 			)
+		if (
+			not definition.completion_cost_resource_id.is_empty()
+			and definition.completion_cost_resource_id
+			not in [SimulationIds.RESOURCE_FOOD, SimulationIds.RESOURCE_WOOD]
+		):
+			errors.append(
+				(
+					"Action '%s' references unknown completion cost resource '%s'"
+					% [definition.action_id, definition.completion_cost_resource_id]
+				)
+			)
 	return errors

simulation/definitions/SimulationIds.gd

@@ -38,4 +38,5 @@ const EVENT_ITEM_CONSUMED := &"item_consumed"
 const EVENT_NPC_SLEPT := &"npc_slept"
 const EVENT_NPC_DIED := &"npc_died"
 const EVENT_TASK_STARTED := &"task_started"
+const EVENT_TASK_BLOCKED := &"task_blocked"
 const EVENT_RESOURCE_DEPLETED := &"resource_depleted"

simulation/definitions/actions/patrol.tres

@@ -9,3 +9,5 @@ display_name = "Patrol"
 default_duration = 6.0
 preferred_profession_id = &"guard"
 target_type = &"activity"
+completion_cost_resource_id = &"wood"
+completion_cost_amount = 1.0

simulation/definitions/actions/study.tres

@@ -9,3 +9,5 @@ display_name = "Study"
 default_duration = 6.0
 preferred_profession_id = &"scholar"
 target_type = &"activity"
+completion_cost_resource_id = &"wood"
+completion_cost_amount = 1.0