4 files changed, 29 insertions, 15 deletions
diff --git a/src/openvic-simulation/history/Bookmark.cpp b/src/openvic-simulation/history/Bookmark.cpp
index ee7b494..d42bd69 100644
--- a/src/openvic-simulation/history/Bookmark.cpp
+++ b/src/openvic-simulation/history/Bookmark.cpp
@@ -11,10 +11,19 @@ using namespace OpenVic;
 using namespace OpenVic::NodeTools;
 
 Bookmark::Bookmark(
-	size_t new_index, std::string_view new_name, std::string_view new_description, Date new_date, uint32_t new_initial_camera_x,
+	index_t new_index,
+	std::string_view new_name,
+	std::string_view new_description,
+	Date new_date,
+	uint32_t new_initial_camera_x,
 	uint32_t new_initial_camera_y
-) : HasIdentifier { std::to_string(new_index) }, name { new_name }, description { new_description }, date { new_date },
-	initial_camera_x { new_initial_camera_x }, initial_camera_y { new_initial_camera_y } {}
+) : HasIdentifier { std::to_string(new_index) },
+	HasIndex { new_index },
+	name { new_name },
+	description { new_description },
+	date { new_date },
+	initial_camera_x { new_initial_camera_x },
+	initial_camera_y { new_initial_camera_y } {}
 
 bool BookmarkManager::add_bookmark(
 	std::string_view name, std::string_view description, Date date, uint32_t initial_camera_x, uint32_t initial_camera_y
diff --git a/src/openvic-simulation/history/Bookmark.hpp b/src/openvic-simulation/history/Bookmark.hpp
index 6f30586..d945d41 100644
--- a/src/openvic-simulation/history/Bookmark.hpp
+++ b/src/openvic-simulation/history/Bookmark.hpp
@@ -9,19 +9,23 @@
 namespace OpenVic {
 	struct BookmarkManager;
 
-	struct Bookmark : HasIdentifier {
+	struct Bookmark : HasIdentifier, HasIndex<> {
 		friend struct BookmarkManager;
 
 	private:
-		const std::string PROPERTY(name);
-		const std::string PROPERTY(description);
+		std::string PROPERTY(name);
+		std::string PROPERTY(description);
 		const Date PROPERTY(date);
 		const uint32_t PROPERTY(initial_camera_x);
 		const uint32_t PROPERTY(initial_camera_y);
 
 		Bookmark(
-			size_t new_index, std::string_view new_name, std::string_view new_description, Date new_date,
-			uint32_t new_initial_camera_x, uint32_t new_initial_camera_y
+			index_t new_index,
+			std::string_view new_name,
+			std::string_view new_description,
+			Date new_date,
+			uint32_t new_initial_camera_x,
+			uint32_t new_initial_camera_y
 		);
 
 	public:
diff --git a/src/openvic-simulation/history/Period.cpp b/src/openvic-simulation/history/Period.cpp
index 2c6589c..b5a9c82 100644
--- a/src/openvic-simulation/history/Period.cpp
+++ b/src/openvic-simulation/history/Period.cpp
@@ -5,15 +5,15 @@
 using namespace OpenVic;
 
 Period::Period(
-	const Date new_start_date,
-	const std::optional<Date> new_end_date
+	Date new_start_date,
+	std::optional<Date> new_end_date
 ) : start_date { new_start_date }, end_date { new_end_date } {}
 
-bool Period::is_date_in_period(const Date date) const {
+bool Period::is_date_in_period(Date date) const {
 	return start_date <= date && (!end_date.has_value() || end_date.value() >= date);
 }
 
-bool Period::try_set_end(const Date date) {
+bool Period::try_set_end(Date date) {
 	if (end_date.has_value()) {
 		Logger::error("Period already has end date ", end_date.value());
 		return false;
diff --git a/src/openvic-simulation/history/Period.hpp b/src/openvic-simulation/history/Period.hpp
index d8b5ade..f59b16d 100644
--- a/src/openvic-simulation/history/Period.hpp
+++ b/src/openvic-simulation/history/Period.hpp
@@ -11,8 +11,9 @@ namespace OpenVic {
 		std::optional<Date> end_date;
 
 	public:
-		Period(const Date new_start_date, const std::optional<Date> new_end_date);
-		bool is_date_in_period(const Date date) const;
-		bool try_set_end(const Date date);
+		Period(Date new_start_date, std::optional<Date> new_end_date);
+
+		bool is_date_in_period(Date date) const;
+		bool try_set_end(Date date);
 	};
 }