3 files changed, 15 insertions, 4 deletions
diff --git a/src/openvic-simulation/economy/Building.cpp b/src/openvic-simulation/economy/Building.cpp
index a79741b..39b49ee 100644
--- a/src/openvic-simulation/economy/Building.cpp
+++ b/src/openvic-simulation/economy/Building.cpp
@@ -207,8 +207,8 @@ bool BuildingManager::add_building(std::string_view identifier, BuildingType con
 }
 
 bool BuildingManager::load_buildings_file(
-	GoodManager const& good_manager, ProductionTypeManager const& production_type_manager,
-	ModifierManager const& modifier_manager, ast::NodeCPtr root
+	GoodManager const& good_manager, ProductionTypeManager const& production_type_manager, ModifierManager& modifier_manager,
+	ast::NodeCPtr root
 ) {
 	bool ret = expect_dictionary_reserve_length(buildings, [this](std::string_view, ast::NodeCPtr value) -> bool {
 		return expect_key("type", expect_identifier(
@@ -281,6 +281,17 @@ bool BuildingManager::load_buildings_file(
 	)(root);
 	lock_buildings();
 
+	for (Building const& building : buildings.get_items()) {
+		std::string max_modifier_prefix = "max_";
+		std::string min_modifier_prefix = "min_build_";
+		modifier_manager.add_modifier_effect(
+			max_modifier_prefix.append(building.get_identifier()), true, ModifierEffect::format_t::INT
+		);
+		modifier_manager.add_modifier_effect(
+			min_modifier_prefix.append(building.get_identifier()), false, ModifierEffect::format_t::INT
+		);
+	}
+
 	return ret;
 }
 
diff --git a/src/openvic-simulation/economy/Building.hpp b/src/openvic-simulation/economy/Building.hpp
index 89b6db8..0b94298 100644
--- a/src/openvic-simulation/economy/Building.hpp
+++ b/src/openvic-simulation/economy/Building.hpp
@@ -162,7 +162,7 @@ namespace OpenVic {
 
 		bool load_buildings_file(
 			GoodManager const& good_manager, ProductionTypeManager const& production_type_manager,
-			ModifierManager const& modifier_manager, ast::NodeCPtr root
+			ModifierManager& modifier_manager, ast::NodeCPtr root
 		);
 
 		bool generate_province_buildings(Province& province) const;
diff --git a/src/openvic-simulation/economy/EconomyManager.hpp b/src/openvic-simulation/economy/EconomyManager.hpp
index b7d45c9..7445614 100644
--- a/src/openvic-simulation/economy/EconomyManager.hpp
+++ b/src/openvic-simulation/economy/EconomyManager.hpp
@@ -20,7 +20,7 @@ namespace OpenVic {
 			return production_type_manager.load_production_types_file(good_manager, pop_manager, root);
 		}
 
-		inline bool load_buildings_file(ModifierManager const& modifier_manager, ast::NodeCPtr root) {
+		inline bool load_buildings_file(ModifierManager& modifier_manager, ast::NodeCPtr root) {
 			return building_manager.load_buildings_file(good_manager, production_type_manager, modifier_manager, root);
 		}
 	};