7 files changed, 114 insertions, 4 deletions

diff --git a/src/openvic-simulation/map/Map.cpp b/src/openvic-simulation/map/Map.cpp
index cdedebd..67e91cd 100644
--- a/src/openvic-simulation/map/Map.cpp
+++ b/src/openvic-simulation/map/Map.cpp
@@ -1,7 +1,9 @@
 #include "Map.hpp"
 
 #include <cassert>
+#include <cstddef>
 #include <unordered_set>
+#include <vector>
 
 #include "openvic-simulation/economy/Good.hpp"
 #include "openvic-simulation/history/ProvinceHistory.hpp"
@@ -644,3 +646,91 @@ bool Map::generate_and_load_province_adjacencies(std::vector<LineObject> const&
 	);
 	return ret;
 }
+
+bool Map::load_climate_file(ModifierManager const& modifier_manager, ast::NodeCPtr root) {
+	bool ret = expect_dictionary_reserve_length(climates, [this, &modifier_manager](std::string_view identifier, ast::NodeCPtr node) -> bool {
+		if (identifier.empty()) {
+			Logger::error("Invalid climate identifier - empty!");
+			return false;
+		}
+
+		bool ret = true;
+		Climate* cur_climate = climates.get_item_by_identifier(identifier);
+		if (cur_climate == nullptr) {
+			ModifierValue values;
+			ret &= modifier_manager.expect_modifier_value(move_variable_callback(values))(node);
+			ret &= climates.add_item({ identifier, std::move(values) });
+		} else {
+			ret &= expect_list_reserve_length(*cur_climate, expect_province_identifier(
+				[cur_climate, &identifier](Province& province) {
+					if (province.climate != cur_climate) {
+						cur_climate->add_province(&province);
+						if (province.climate != nullptr) {
+							Climate* old_climate = const_cast<Climate*>(province.climate);
+							old_climate->remove_province(&province);
+							Logger::warning(
+								"Province with id ", province.get_identifier(),
+								" found in multiple climates: ", identifier,
+								" and ", old_climate->get_identifier()
+							);
+						}
+						province.climate = cur_climate;
+					} else {
+						Logger::warning(
+							"Province with id ", province.get_identifier(),
+							"defined twice in climate ", identifier
+						);
+					}
+					return true;
+				}
+			))(node);
+			cur_climate->lock();
+		}
+		return ret;
+	})(root);
+
+	lock_climates();
+
+	return ret;
+}
+
+bool Map::load_continent_file(ModifierManager const& modifier_manager, ast::NodeCPtr root) {
+	bool ret = expect_dictionary_reserve_length(continents, [this, &modifier_manager](std::string_view identifier, ast::NodeCPtr node) -> bool {
+		if (identifier.empty()) {
+			Logger::error("Invalid continent identifier - empty!");
+			return false;
+		}
+
+		ModifierValue values;
+		ProvinceSetModifier::provinces_t prov_list;
+		bool ret = modifier_manager.expect_modifier_value_and_keys(move_variable_callback(values),
+			"provinces", ONE_EXACTLY, expect_list_reserve_length(prov_list, expect_province_identifier(
+				[&prov_list](Province const& province) -> bool {
+					if (province.continent == nullptr) {
+						prov_list.emplace_back(&province);
+					}
+					return true;
+				}
+			))
+		)(node);
+
+		Continent continent = { identifier, std::move(values) };
+		continent.add_provinces(prov_list);
+		continent.lock();
+
+		if (continents.add_item(std::move(continent))) {
+			Continent const& moved_continent = continents.get_items().back();
+			for (Province const* prov : moved_continent.get_provinces()) {
+				remove_province_const(prov)->continent = &moved_continent;
+			}
+		} else {
+			ret = false;
+		}
+
+		return ret;
+	})(root);
+
+	lock_continents();
+
+	return ret;
+}
diff --git a/src/openvic-simulation/map/Map.hpp b/src/openvic-simulation/map/Map.hpp
index 523a8e7..2575324 100644
--- a/src/openvic-simulation/map/Map.hpp
+++ b/src/openvic-simulation/map/Map.hpp
@@ -49,7 +49,6 @@ namespace OpenVic {
 	 * MAP-4
 	 */
 	struct Map {
-
 #pragma pack(push, 1)
 		/* Used to represent tightly packed 3-byte integer pixel information. */
 		struct shape_pixel_t {
@@ -63,6 +62,8 @@ namespace OpenVic {
 		IdentifierRegistry<Province> IDENTIFIER_REGISTRY_CUSTOM_INDEX_OFFSET(province, 1);
 		IdentifierRegistry<Region> IDENTIFIER_REGISTRY(region);
 		IdentifierRegistry<Mapmode> IDENTIFIER_REGISTRY(mapmode);
+		IdentifierRegistry<Climate> IDENTIFIER_REGISTRY(climate);
+		IdentifierRegistry<Continent> IDENTIFIER_REGISTRY(continent);
 		ProvinceSet water_provinces;
 		TerrainTypeManager PROPERTY_REF(terrain_type_manager);
 
@@ -132,5 +133,7 @@ namespace OpenVic {
 		bool load_region_file(ast::NodeCPtr root);
 		bool load_map_images(fs::path const& province_path, fs::path const& terrain_path, bool detailed_errors);
 		bool generate_and_load_province_adjacencies(std::vector<ovdl::csv::LineObject> const& additional_adjacencies);
+		bool load_climate_file(ModifierManager const& modifier_manager, ast::NodeCPtr root);
+		bool load_continent_file(ModifierManager const& modifier_manager, ast::NodeCPtr root);
 	};
 }
diff --git a/src/openvic-simulation/map/Province.cpp b/src/openvic-simulation/map/Province.cpp
index cb9095b..2d301e8 100644
--- a/src/openvic-simulation/map/Province.cpp
+++ b/src/openvic-simulation/map/Province.cpp
@@ -8,8 +8,8 @@ using namespace OpenVic::NodeTools;
 Province::Province(
 	std::string_view new_identifier, colour_t new_colour, index_t new_index
 ) : HasIdentifierAndColour { new_identifier, new_colour, true }, index { new_index }, region { nullptr },
-	on_map { false }, has_region { false }, water { false }, coastal { false }, port { false },
-	default_terrain_type { nullptr }, positions {}, terrain_type { nullptr }, life_rating { 0 },
+	climate { nullptr }, continent { nullptr }, on_map { false }, has_region { false }, water { false }, coastal { false },
+	port { false }, default_terrain_type { nullptr }, positions {}, terrain_type { nullptr }, life_rating { 0 },
 	colony_status { colony_status_t::STATE }, state { nullptr }, owner { nullptr }, controller { nullptr }, slave { false },
 	crime { nullptr }, rgo { nullptr }, buildings { "buildings", false }, total_population { 0 } {
 	assert(index != NULL_INDEX);
diff --git a/src/openvic-simulation/map/Province.hpp b/src/openvic-simulation/map/Province.hpp
index 58fe29e..431b4c2 100644
--- a/src/openvic-simulation/map/Province.hpp
+++ b/src/openvic-simulation/map/Province.hpp
@@ -16,6 +16,10 @@ namespace OpenVic {
 	struct TerrainType;
 	struct TerrainTypeMapping;
 	struct ProvinceHistoryEntry;
+	struct ProvinceSetModifier;
+	using Climate = ProvinceSetModifier;
+	using Continent = ProvinceSetModifier;
+
 
 	/* REQUIREMENTS:
 	 * MAP-5, MAP-7, MAP-8, MAP-43, MAP-47
@@ -88,6 +92,8 @@ namespace OpenVic {
 		/* Immutable attributes (unchanged after initial game load) */
 		const index_t PROPERTY(index);
 		Region const* PROPERTY(region);
+		Climate const* PROPERTY(climate);
+		Continent const* PROPERTY(continent);
 		bool PROPERTY(on_map);
 		bool PROPERTY(has_region);
 		bool PROPERTY_CUSTOM_PREFIX(water, is);
diff --git a/src/openvic-simulation/map/Region.cpp b/src/openvic-simulation/map/Region.cpp
index e356c89..6f40338 100644
--- a/src/openvic-simulation/map/Region.cpp
+++ b/src/openvic-simulation/map/Region.cpp
@@ -94,6 +94,9 @@ ProvinceSet::provinces_t const& ProvinceSet::get_provinces() const {
 Region::Region(std::string_view new_identifier, colour_t new_colour, bool new_meta)
 	: HasIdentifierAndColour { new_identifier, new_colour, false }, meta { new_meta } {}
 
+ProvinceSetModifier::ProvinceSetModifier(std::string_view new_identifier, ModifierValue&& new_values)
+	: Modifier { new_identifier, std::move(new_values), 0 } {}
+
 bool Region::get_meta() const {
 	return meta;
 }
diff --git a/src/openvic-simulation/map/Region.hpp b/src/openvic-simulation/map/Region.hpp
index e4565c9..d8948b7 100644
--- a/src/openvic-simulation/map/Region.hpp
+++ b/src/openvic-simulation/map/Region.hpp
@@ -27,6 +27,14 @@ namespace OpenVic {
 		provinces_t const& get_provinces() const;
 	};
 
+	struct ProvinceSetModifier : Modifier, ProvinceSet {
+		friend struct Map;
+	private:
+		ProvinceSetModifier(std::string_view new_identifier, ModifierValue&& new_values);
+	public:
+		ProvinceSetModifier(ProvinceSetModifier&&) = default;
+	};
+
 	/* REQUIREMENTS:
 	 * MAP-6, MAP-44, MAP-48
 	 */
diff --git a/src/openvic-simulation/map/TerrainType.hpp b/src/openvic-simulation/map/TerrainType.hpp
index 1a5b09c..dc9bc56 100644
--- a/src/openvic-simulation/map/TerrainType.hpp
+++ b/src/openvic-simulation/map/TerrainType.hpp
@@ -5,7 +5,7 @@
 namespace OpenVic {
 	struct TerrainTypeManager;
 
-	struct TerrainType : HasIdentifierAndColour, ModifierValue {
+	struct TerrainType : HasIdentifierAndColour {
 		friend struct TerrainTypeManager;
 
 	private: