define ship roles via added modules and allow multiple weapons

src/balancing/ArenaSimulation.cpp

@@ -14,6 +14,7 @@
 #include "EntityAdmin.h"
 #include "FactionComponent.h"
 #include "HealthComponent.h"
+#include "ModuleOwnerComponent.h"
 #include "MovementIntentSystem.h"
 #include "PositionComponent.h"
 #include "ScrapSystem.h"
@@ -159,7 +160,12 @@ void ArenaSimulation::placeStructures()
         }
         const entt::entity stationEntity = m_admin.spawnStation(
             anchor, parsed.footprint, absCells, hp, hp, isEnemy);
-        m_admin.addComponent<WeaponComponent>(stationEntity, weapon);
+        {
+            entt::entity wChild = m_admin.createModuleEntity();
+            m_admin.addComponent<WeaponComponent>(wChild, weapon);
+            m_admin.addComponent<ModuleOwnerComponent>(wChild,
+                ModuleOwnerComponent{stationEntity});
+        }
         m_buildingSystem->registerTileOccupancy(absCells, allocateBuildingId());
     };
 
@@ -247,6 +253,7 @@ void ArenaSimulation::tick()
     m_aiSystem->tickHomeReturnBehavior(m_admin);
     m_aiSystem->tickThreatResponseBehavior(m_admin, *m_buildingSystem);
     m_aiSystem->tickRepairBehavior(m_admin, *m_buildingSystem);
+    m_aiSystem->tickRepairTools(m_admin);
     m_aiSystem->tickSalvageBehavior(m_admin, *m_scrapSystem, *m_buildingSystem);
 
     // Combat resolution (tick step 8).
@@ -320,6 +327,15 @@ void ArenaSimulation::tickDeaths()
     {
         const StationBodyComponent& sb = m_admin.get<StationBodyComponent>(deadEntity);
         m_buildingSystem->unregisterTileOccupancy(sb.bodyCells);
+        {
+            std::vector<entt::entity> stationChildren;
+            m_admin.forEach<ModuleOwnerComponent>(
+                [&](entt::entity ce, const ModuleOwnerComponent& o)
+                {
+                    if (o.owner == deadEntity) { stationChildren.push_back(ce); }
+                });
+            for (entt::entity ce : stationChildren) { m_admin.destroy(ce); }
+        }
         m_admin.destroy(deadEntity);
     }