derive threat cost dynamically

src/lib/sim/WaveSystem.cpp

@@ -3,6 +3,7 @@
 #include <algorithm>
 
 #include "ShipSystem.h"
+#include "ThreatCostCalculator.h"
 #include "tracing.h"
 
 WaveSystem::WaveSystem(const GameConfig& config, std::mt19937& rng)
@@ -177,7 +178,8 @@ std::vector<WaveSystem::SpawnEntry> WaveSystem::selectWaveShips(double& budget,
     std::vector<EligibleShip> eligible;
     for (const ShipDef& def : m_config.ships.ships)
     {
-        const double cost = def.threat.costFormula.evaluate(static_cast<double>(shipLevel));
+        const double cost = calculateShipThreatCost(m_config.threatCosts, m_config,
+                                                      def.id, def.defaultModules);
         if (cost > 0.0)
         {
             EligibleShip es;