Revamp goals as resources

core/goals/goal_data.gd

@@ -0,0 +1,43 @@
+class_name GoalData
+extends Resource
+
+@export var id: StringName = &""
+@export var requirements: Array[GoalRequirementData] = []
+
+func has_id() -> bool:
+	return not String(id).strip_edges().is_empty()
+
+func get_valid_requirements() -> Array[Resource]:
+	var result: Array[Resource] = []
+	for requirement_resource in requirements:
+		if requirement_resource == null:
+			continue
+		if not bool(requirement_resource.call("is_valid")):
+			continue
+
+		result.append(requirement_resource)
+
+	return result
+
+func is_valid() -> bool:
+	if not has_id():
+		return false
+
+	return not get_valid_requirements().is_empty()
+
+func is_met() -> bool:
+	var valid_requirements: Array[Resource] = get_valid_requirements()
+	if valid_requirements.is_empty():
+		return false
+
+	for requirement_resource in valid_requirements:
+		if not bool(requirement_resource.call("is_met")):
+			return false
+
+	return true
+
+func get_first_requirement_summary() -> String:
+	var valid_requirements: Array[Resource] = get_valid_requirements()
+	if valid_requirements.is_empty():
+		return ""
+	return String(valid_requirements[0].call("get_summary_text"))