4 files changed, 66 insertions, 4 deletions
diff --git a/src/openvic-simulation/economy/FactoryProducer.cpp b/src/openvic-simulation/economy/FactoryProducer.cpp
index 81ebd4a..98c04b2 100644
--- a/src/openvic-simulation/economy/FactoryProducer.cpp
+++ b/src/openvic-simulation/economy/FactoryProducer.cpp
@@ -1,5 +1,10 @@
 #include "FactoryProducer.hpp"
 
+#include "openvic-simulation/economy/Good.hpp"
+#include "openvic-simulation/pop/Pop.hpp"
+#include "openvic-simulation/types/fixed_point/FixedPoint.hpp"
+
+
 using namespace OpenVic;
 
 FactoryProducer::FactoryProducer(
@@ -20,7 +25,8 @@ FactoryProducer::FactoryProducer(
 	  market_spendings_yesterday { new_market_spendings_yesterday }, paychecks_yesterday { new_paychecks_yesterday },
 	  unprofitable_days { new_unprofitable_days }, subsidised_days { new_subsidised_days },
 	  days_without_input { new_days_without_input }, hiring_priority { new_hiring_priority },
-	  profit_history_current { new_profit_history_current }, daily_profit_history { std::move(new_daily_profit_history) } {}
+	  profit_history_current { new_profit_history_current }, daily_profit_history { std::move(new_daily_profit_history) },
+	  employees_per_job_cache {} {}
 FactoryProducer::FactoryProducer(ProductionType const& new_production_type, const fixed_point_t new_size_multiplier)
 	: FactoryProducer { new_production_type, new_size_multiplier, 0, 0, 0, {}, {}, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {} } {}
 
@@ -37,3 +43,54 @@ fixed_point_t FactoryProducer::get_average_profitability_last_seven_days() const
 
 	return sum / (1 + profit_history_current);
 }
+
+void FactoryProducer::produce(
+	const fixed_point_t input_modifier, const fixed_point_t throughput_modifier, const fixed_point_t output_modifier
+) {
+	fixed_point_t my_input_multiplier = input_modifier, my_throughput_multiplier = throughput_modifier,
+				  my_output_multiplier = output_modifier;
+	for (Job const& job : production_type.get_jobs()) {
+		const fixed_point_t number_of_employees_in_job = employees_per_job_cache[&job];
+		switch (job.get_effect_type()) {
+		case Job::effect_t::INPUT:
+			my_input_multiplier += job.get_effect_multiplier() * number_of_employees_in_job /
+				(size_multiplier * production_type.get_base_workforce_size());
+			break;
+		case Job::effect_t::OUTPUT:
+			my_output_multiplier += job.get_effect_multiplier() * number_of_employees_in_job /
+				(size_multiplier * production_type.get_base_workforce_size());
+			break;
+		case Job::effect_t::THROUGHPUT:
+			my_throughput_multiplier *=
+				job.get_effect_multiplier() * number_of_employees_in_job / production_type.get_base_workforce_size();
+			break;
+		}
+	}
+
+	my_input_multiplier *= my_throughput_multiplier;
+	my_output_multiplier *= my_throughput_multiplier;
+
+	fixed_point_t lack_of_inputs_multiplier = 1;
+	for (const auto& [good, base_input_amount] : production_type.get_input_goods()) {
+		const fixed_point_t desired_input = base_input_amount * my_input_multiplier;
+		const fixed_point_t in_stock = stockpile[good];
+		if (desired_input > in_stock) {
+			fixed_point_t relative_inputs = in_stock / desired_input;
+			if (relative_inputs < lack_of_inputs_multiplier) {
+				lack_of_inputs_multiplier = relative_inputs;
+			}
+		}
+	}
+
+	if (lack_of_inputs_multiplier < 1) {
+		my_input_multiplier *= lack_of_inputs_multiplier;
+		my_output_multiplier *= lack_of_inputs_multiplier;
+		days_without_input++;
+	}
+
+	for (const auto& [good, base_input_amount] : production_type.get_input_goods()) {
+		stockpile[good] -= base_input_amount * my_input_multiplier;
+	}
+
+	output_quantity_yesterday = production_type.get_base_output_quantity() * my_output_multiplier;
+}
diff --git a/src/openvic-simulation/economy/FactoryProducer.hpp b/src/openvic-simulation/economy/FactoryProducer.hpp
index 623ec48..5570b7a 100644
--- a/src/openvic-simulation/economy/FactoryProducer.hpp
+++ b/src/openvic-simulation/economy/FactoryProducer.hpp
@@ -13,6 +13,8 @@ namespace OpenVic {
 		static constexpr uint8_t DAYS_OF_HISTORY = 7;
 		using daily_profit_history_t = std::array<fixed_point_t, DAYS_OF_HISTORY>;
 
+		ordered_map<Job const*, Pop::pop_size_t> employees_per_job_cache;
+
 		uint8_t PROPERTY(profit_history_current);
 		daily_profit_history_t PROPERTY(daily_profit_history);
 		ProductionType const& PROPERTY(production_type);
@@ -47,5 +49,8 @@ namespace OpenVic {
 
 		fixed_point_t get_profitability_yesterday() const;
 		fixed_point_t get_average_profitability_last_seven_days() const;
+		void produce(
+			const fixed_point_t input_modifier, const fixed_point_t throughput_modifier, const fixed_point_t output_modifier
+		);
 	};
 }
diff --git a/src/openvic-simulation/pop/Pop.cpp b/src/openvic-simulation/pop/Pop.cpp
index 1701321..536459d 100644
--- a/src/openvic-simulation/pop/Pop.cpp
+++ b/src/openvic-simulation/pop/Pop.cpp
@@ -533,8 +533,8 @@ bool PopManager::load_pop_into_vector(
 		*non_integer_size = true;
 	}
 
-	if (culture != nullptr && religion != nullptr && size >= 1) {
-		vec.emplace_back(Pop { type, *culture, *religion, size.to_int64_t(), militancy, consciousness, rebel_type });
+	if (culture != nullptr && religion != nullptr && size >= 1 && size <= std::numeric_limits<Pop::pop_size_t>::max()) {
+		vec.emplace_back(Pop { type, *culture, *religion, size.to_int32_t(), militancy, consciousness, rebel_type });
 	} else {
 		Logger::warning(
 			"Some pop arguments are invalid: culture = ", culture, ", religion = ", religion, ", size = ", size
diff --git a/src/openvic-simulation/pop/Pop.hpp b/src/openvic-simulation/pop/Pop.hpp
index cdecf44..647d06d 100644
--- a/src/openvic-simulation/pop/Pop.hpp
+++ b/src/openvic-simulation/pop/Pop.hpp
@@ -30,7 +30,7 @@ namespace OpenVic {
 	struct Pop {
 		friend struct PopManager;
 
-		using pop_size_t = int64_t;
+		using pop_size_t = int32_t;
 
 		static constexpr pop_size_t MAX_SIZE = std::numeric_limits<pop_size_t>::max();