1 files changed, 30 insertions, 0 deletions
diff --git a/src/openvic-simulation/modifier/ModifierSum.hpp b/src/openvic-simulation/modifier/ModifierSum.hpp
new file mode 100644
index 0000000..957ffab
--- /dev/null
+++ b/src/openvic-simulation/modifier/ModifierSum.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "openvic-simulation/modifier/Modifier.hpp"
+#include "openvic-simulation/types/fixed_point/FixedPointMap.hpp"
+
+namespace OpenVic {
+	struct ModifierSum {
+	private:
+		fixed_point_map_t<Modifier const*> PROPERTY(modifiers);
+		ModifierValue PROPERTY(value_sum);
+
+	public:
+		ModifierSum() = default;
+		ModifierSum(ModifierSum&&) = default;
+
+		void clear();
+		bool empty();
+
+		fixed_point_t get_effect(ModifierEffect const& effect, bool* effect_found = nullptr) const;
+		bool has_effect(ModifierEffect const& effect) const;
+
+		void add_modifier(Modifier const& modifier, fixed_point_t multiplier = fixed_point_t::_1());
+		void add_modifier_sum(ModifierSum const& modifier_sum);
+
+		ModifierSum& operator+=(Modifier const& modifier);
+		ModifierSum& operator+=(ModifierSum const& modifier_sum);
+
+		std::vector<std::pair<Modifier const*, fixed_point_t>> get_contributing_modifiers(ModifierEffect const& effect) const;
+	};
+}