Method purchase

game/state/shared/organisation.cpp:173–205

}

void Organisation::purchase(GameState &state, const StateRef<Building> &buyer,
                            StateRef<VEquipmentType> vehicleEquipment, int count)
{
	int price = 0;
	if (state.economy.find(vehicleEquipment.id) == state.economy.end())
	{
		LogError("Economy not found for %s: How are we buying it then!?", vehicleEquipment.id);
	}
	else
	{
		auto &economy = state.economy[vehicleEquipment.id];
		price = economy.currentPrice;
		if (buyer->owner == state.getPlayer())
		{
			economy.currentStock -= count;
			if (economy.currentStock < 0)
			{
				LogInfo("Economy went into negative stock for %s: Was it because we used economy "
				        "to transfer?",
				        vehicleEquipment.id);
			}
		}
	}

	// Expecting to be able to purchase
	auto building = buyer->owner->id == id ? buyer : getPurchaseBuilding(state, buyer);
	building->cargo.emplace_back(state, vehicleEquipment, count, price,
	                             StateRef<Organisation>{&state, id}, buyer);
	LogWarning("PURCHASE: %s bought %dx%s at %s to %s ", buyer->owner.id, count,
	           vehicleEquipment.id, building.id, buyer.id);
	auto owner = buyer->owner;
	owner->balance -= count * price;
}

void Organisation::purchase(GameState &state, const StateRef<Building> &buyer,
                            StateRef<VAmmoType> vehicleAmmo, int count)