define ship roles via added modules and allow multiple weapons

bin/app/data/config/modules.toml

@@ -34,7 +34,7 @@ threat_cost = 3.0
 fill_color = "#FF4040"
 glyph = "W"
 
-[module.combat]
+[module.weapon]
 multiplied_damage_formula = "1.0 + 0.15 * x"
 
 [[module]]
@@ -49,3 +49,46 @@ glyph = "E"
 
 [module.movement]
 added_speed_formula = "0.5 * x"
+
+[[module]]
+id = "laser_cannon"
+surface_mask = ["O"]
+materials = [{item = "iron_ingot", amount = 1}]
+player_production_level = 1
+production_time_seconds = 5
+threat_cost = 5.0
+fill_color = "#FF8040"
+glyph = "L"
+
+[module.weapon]
+damage_formula = "2"
+attack_range_formula = "5"
+attack_rate_formula = "2.0"
+
+[[module]]
+id = "salvage_bay_module"
+surface_mask = ["OO"]
+materials = [{item = "iron_ingot", amount = 2}]
+player_production_level = 1
+production_time_seconds = 5
+threat_cost = 0.0
+fill_color = "#AACC44"
+glyph = "Sv"
+
+[module.salvage]
+collection_range_formula = "50"
+cargo_capacity_formula = "10"
+
+[[module]]
+id = "repair_tool_module"
+surface_mask = ["O"]
+materials = [{item = "circuit_board", amount = 2}]
+player_production_level = 1
+production_time_seconds = 5
+threat_cost = 0.0
+fill_color = "#66CCFF"
+glyph = "Rp"
+
+[module.repair]
+repair_rate_formula = "5 + x"
+repair_range_formula = "80"

bin/app/data/config/ships.toml

@@ -2,6 +2,7 @@
 id = "fighter"
 available_from_start = true
 layout = ["XOX", "OOO", "XOX"]
+default_modules = [{type = "laser_cannon", x = 1, y = 1, rotation = "east"}]
 
 [ship.schematic]
 materials = [{item = "iron_ingot", amount = 3}, {item = "circuit_board", amount = 1}]
@@ -24,11 +25,6 @@ max_rotation_speed_formula  = "6.28"
 [ship.sensor]
 sensor_range_formula = "15"
 
-[ship.combat]
-damage_formula = "2"
-attack_range_formula = "5"
-attack_rate_formula = "2.0"
-
 [ship.loot]
 scrap_drop = 2
 
@@ -38,6 +34,7 @@ scrap_drop = 2
 id = "sniper"
 available_from_start = true
 layout = ["XOOX", "OOOO", "XOOX"]
+default_modules = [{type = "laser_cannon", x = 1, y = 1, rotation = "east"}]
 
 [ship.schematic]
 materials = [{item = "iron_ingot", amount = 3}, {item = "circuit_board", amount = 1}]
@@ -60,11 +57,6 @@ max_rotation_speed_formula  = "3.14"
 [ship.sensor]
 sensor_range_formula = "25"
 
-[ship.combat]
-damage_formula = "10"
-attack_range_formula = "20"
-attack_rate_formula = "0.5"
-
 [ship.loot]
 scrap_drop = 2
 
@@ -74,6 +66,7 @@ scrap_drop = 2
 id = "gunship"
 available_from_start = true
 layout = ["XOOOX", "OOOOO", "OOOOO", "XOOOX"]
+default_modules = [{type = "laser_cannon", x = 1, y = 1, rotation = "east"}]
 
 [ship.schematic]
 materials = [{item = "iron_ingot", amount = 3}, {item = "circuit_board", amount = 1}]
@@ -96,11 +89,6 @@ max_rotation_speed_formula  = "3.14"
 [ship.sensor]
 sensor_range_formula = "20"
 
-[ship.combat]
-damage_formula = "1"
-attack_range_formula = "10"
-attack_rate_formula = "5"
-
 [ship.loot]
 scrap_drop = 2
 
@@ -132,10 +120,6 @@ max_rotation_speed_formula  = "6.28"
 [ship.sensor]
 sensor_range_formula = "250"
 
-[ship.salvage]
-collection_range = 50
-cargo_capacity = 10
-
 [ship.loot]
 scrap_drop = 2
 
@@ -166,9 +150,5 @@ max_rotation_speed_formula  = "6.28"
 [ship.sensor]
 sensor_range_formula = "250"
 
-[ship.repair]
-repair_rate_formula = "5 + x"
-repair_range_formula = "80"
-
 [ship.loot]
 scrap_drop = 2

bin/app/data/config/visuals.toml

@@ -141,26 +141,29 @@ outline = "#201a14"
 # -----------------------------------------------------------------------------
 # Ships
 #
-# Ships are drawn as oriented triangles/arrows. Color is keyed to role, not
+# Ships are drawn as oriented triangles/arrows. Color is keyed to schematic id.
-# schematic (architecture.md, "Layer Order").
 # -----------------------------------------------------------------------------
 
-[ships.player_combat]
+[ships.fighter]
 fill    = "#3366ff"
 outline = "#ffffff"
 
-[ships.salvage]
+[ships.sniper]
+fill    = "#3366ff"
+outline = "#ffffff"
+
+[ships.gunship]
+fill    = "#3366ff"
+outline = "#ffffff"
+
+[ships.salvage_ship]
 fill    = "#33cc66"
 outline = "#ffffff"
 
-[ships.repair]
+[ships.repair_ship]
 fill    = "#66ccff"
 outline = "#ffffff"
 
-[ships.enemy]
-fill    = "#cc3333"
-outline = "#ffffff"
-
 # -----------------------------------------------------------------------------
 # Laser beams (REQ-SHP-FIRING-BEAM)
 # -----------------------------------------------------------------------------

bin/balancing/data/balancing.toml

@@ -12,8 +12,9 @@ enemy_buffer_width = 10
     level = 1
     count = 5
     modules = [
+      {type = "laser_cannon",  x = 1, y = 1, rotation = "east"},
       {type = "weapon_upgrade", x = 0, y = 1, rotation = "east"},
-      {type = "sensor_booster", x = 1, y = 0, rotation = "east"},
+      {type = "sensor_booster", x = 2, y = 1, rotation = "east"},
     ]
 
   [[arena.team]]
@@ -23,6 +24,7 @@ enemy_buffer_width = 10
     level = 1
     count = 1
     modules = [
+      {type = "laser_cannon",  x = 1, y = 1, rotation = "east"},
       {type = "armor_plate",   x = 1, y = 0, rotation = "east"},
       {type = "weapon_upgrade", x = 1, y = 2, rotation = "east"},
     ]
@@ -42,6 +44,7 @@ enemy_buffer_width = 10
     level = 1
     count = 1
     modules = [
+      {type = "laser_cannon",  x = 1, y = 1, rotation = "east"},
       {type = "armor_plate",    x = 1, y = 0, rotation = "east"},
       {type = "sensor_booster", x = 0, y = 1, rotation = "east"},
     ]
@@ -53,6 +56,7 @@ enemy_buffer_width = 10
     level = 1
     count = 1
     modules = [
+      {type = "laser_cannon",  x = 2, y = 1, rotation = "east"},
       {type = "armor_plate",    x = 1, y = 0, rotation = "east"},
       {type = "weapon_upgrade", x = 3, y = 1, rotation = "east"},
       {type = "engine_booster", x = 0, y = 1, rotation = "east"},
@@ -73,6 +77,7 @@ enemy_buffer_width = 10
     level = 1
     count = 1
     modules = [
+      {type = "laser_cannon",  x = 2, y = 2, rotation = "east"},
       {type = "armor_plate",    x = 1, y = 0, rotation = "east"},
       {type = "weapon_upgrade", x = 3, y = 2, rotation = "east"},
       {type = "engine_booster", x = 0, y = 1, rotation = "east"},
@@ -85,6 +90,7 @@ enemy_buffer_width = 10
     level = 1
     count = 5
     modules = [
+      {type = "laser_cannon",  x = 1, y = 1, rotation = "east"},
       {type = "engine_booster", x = 1, y = 0, rotation = "east"},
       {type = "sensor_booster", x = 2, y = 1, rotation = "east"},
     ]
@@ -104,7 +110,8 @@ enemy_buffer_width = 15
     level = 1
     count = 3
     modules = [
-      {type = "weapon_upgrade", x = 1, y = 1, rotation = "east"},
+      {type = "laser_cannon",   x = 1, y = 1, rotation = "east"},
+      {type = "weapon_upgrade", x = 2, y = 1, rotation = "east"},
       {type = "sensor_booster", x = 1, y = 0, rotation = "east"},
     ]
     [[arena.team.station]]
@@ -125,5 +132,6 @@ enemy_buffer_width = 15
     level = 1
     count = 8
     modules = [
+      {type = "laser_cannon",  x = 1, y = 1, rotation = "east"},
       {type = "engine_booster", x = 1, y = 0, rotation = "east"},
     ]

bin/test/data/config/modules.toml

@@ -34,5 +34,48 @@ threat_cost = 3.0
 fill_color = "#FF4040"
 glyph = "W"
 
-[module.combat]
+[module.weapon]
 multiplied_damage_formula = "1.2"
+
+[[module]]
+id = "laser_cannon"
+surface_mask = ["O"]
+materials = [{item = "iron_ingot", amount = 1}]
+player_production_level = 1
+production_time_seconds = 5
+threat_cost = 5.0
+fill_color = "#FF8040"
+glyph = "L"
+
+[module.weapon]
+damage_formula = "2"
+attack_range_formula = "5"
+attack_rate_formula = "2.0"
+
+[[module]]
+id = "salvage_bay_module"
+surface_mask = ["OO"]
+materials = [{item = "iron_ingot", amount = 2}]
+player_production_level = 1
+production_time_seconds = 5
+threat_cost = 0.0
+fill_color = "#AACC44"
+glyph = "Sv"
+
+[module.salvage]
+collection_range_formula = "50"
+cargo_capacity_formula = "10"
+
+[[module]]
+id = "repair_tool_module"
+surface_mask = ["O"]
+materials = [{item = "circuit_board", amount = 2}]
+player_production_level = 1
+production_time_seconds = 5
+threat_cost = 0.0
+fill_color = "#66CCFF"
+glyph = "Rp"
+
+[module.repair]
+repair_rate_formula = "5 + x"
+repair_range_formula = "80"

bin/test/data/config/ships.toml

@@ -2,6 +2,7 @@
 id = "interceptor"
 available_from_start = true
 layout = ["XOX", "OOO", "XOX"]
+default_modules = [{type = "laser_cannon", x = 1, y = 1, rotation = "east"}]
 
 [ship.schematic]
 materials = [{item = "iron_ingot", amount = 3}, {item = "circuit_board", amount = 1}]
@@ -24,11 +25,6 @@ max_rotation_speed_formula  = "100000"
 [ship.sensor]
 sensor_range_formula = "200"
 
-[ship.combat]
-damage_formula = "10 + 2*x"
-attack_range_formula = "150"
-attack_rate_formula = "2.0"
-
 [ship.loot]
 scrap_drop = 2
 
@@ -37,6 +33,7 @@ scrap_drop = 2
 id = "destroyer"
 available_from_start = true
 layout = ["XOOX", "OOOO", "XOOX"]
+default_modules = [{type = "laser_cannon", x = 1, y = 1, rotation = "east"}]
 
 [ship.schematic]
 materials = [{item = "iron_ingot", amount = 5}, {item = "circuit_board", amount = 2}]
@@ -59,11 +56,6 @@ max_rotation_speed_formula  = "100000"
 [ship.sensor]
 sensor_range_formula = "300"
 
-[ship.combat]
-damage_formula = "12 + 2*x"
-attack_range_formula = "250"
-attack_rate_formula = "1.0"
-
 [ship.loot]
 scrap_drop = 4
 
@@ -94,10 +86,6 @@ max_rotation_speed_formula  = "100000"
 [ship.sensor]
 sensor_range_formula = "250"
 
-[ship.salvage]
-collection_range = 50
-cargo_capacity = 10
-
 [ship.loot]
 scrap_drop = 2
 
@@ -128,9 +116,5 @@ max_rotation_speed_formula  = "100000"
 [ship.sensor]
 sensor_range_formula = "250"
 
-[ship.repair]
-repair_rate_formula = "5 + x"
-repair_range_formula = "80"
-
 [ship.loot]
 scrap_drop = 2

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);
     }
 

src/balancing/ArenaView.cpp

@@ -14,23 +14,12 @@
 #include "FactionComponent.h"
 #include "HealthComponent.h"
 #include "PositionComponent.h"
-#include "RepairToolComponent.h"
-#include "SalvageCargoComponent.h"
 #include "ScrapSystem.h"
 #include "ShipIdentityComponent.h"
 #include "StationBodyComponent.h"
 
 namespace
 {
-
-ShipRole shipRoleFromComponents(bool isEnemy, bool hasCargo, bool hasRepairTool)
-{
-    if (isEnemy)       { return ShipRole::Enemy; }
-    if (hasCargo)      { return ShipRole::Salvage; }
-    if (hasRepairTool) { return ShipRole::Repair; }
-    return ShipRole::PlayerCombat;
-}
-
 }  // namespace
 
 
@@ -322,15 +311,12 @@ void ArenaView::drawShips(QPainter& painter)
 {
     m_sim->admin().forEach<ShipIdentityComponent, PositionComponent, FacingComponent,
                            FactionComponent>(
-        [&](entt::entity e, const ShipIdentityComponent& /*si*/,
+        [&](entt::entity /*e*/, const ShipIdentityComponent& si,
             const PositionComponent& pos, const FacingComponent& facing,
-            const FactionComponent& fac)
+            const FactionComponent& /*fac*/)
         {
-            const bool hasCargo  = m_sim->admin().hasAll<SalvageCargoComponent>(e);
+            const std::map<std::string, ShipVisuals>::const_iterator it =
-            const bool hasRepair = m_sim->admin().hasAll<RepairToolComponent>(e);
+                m_visuals->ships.find(si.schematicId);
-            const ShipRole role  = shipRoleFromComponents(fac.isEnemy, hasCargo, hasRepair);
-            const std::map<ShipRole, ShipVisuals>::const_iterator it =
-                m_visuals->ships.find(role);
             if (it == m_visuals->ships.end()) { return; }
 
             const QPointF center = worldToWidget(pos.value);

src/lib/config/ConfigLoader.cpp

@@ -7,8 +7,13 @@
 #include <utility>
 #include <vector>
 
+#include <QPoint>
+
 #include "toml.hpp"
 
+#include "Rotation.h"
+#include "ShipLayout.h"
+
 namespace
 {
 
@@ -207,6 +212,42 @@ toml::table parseFile(const std::string& path, const std::string& file)
     }
 }
 
+Rotation parseRotationString(const std::string& s)
+{
+    if (s == "east")  { return Rotation::East;  }
+    if (s == "south") { return Rotation::South; }
+    if (s == "west")  { return Rotation::West;  }
+    return Rotation::North;
+}
+
+std::vector<PlacedModule> parsePlacedModules(const toml::array& arr,
+                                             const std::string& file,
+                                             const std::string& path)
+{
+    std::vector<PlacedModule> result;
+    result.reserve(arr.size());
+    for (std::size_t i = 0; i < arr.size(); ++i)
+    {
+        const std::string elemPath = path + "[" + std::to_string(i) + "]";
+        const toml::table* t = arr[i].as_table();
+        if (t == nullptr) { continue; }
+        toml::table& mt = const_cast<toml::table&>(*t);
+
+        const std::optional<std::string> type = mt["type"].value<std::string>();
+        const std::optional<int64_t>     x    = mt["x"].value<int64_t>();
+        const std::optional<int64_t>     y    = mt["y"].value<int64_t>();
+        const std::optional<std::string> rot  = mt["rotation"].value<std::string>();
+        if (!type || !x || !y || !rot) { continue; }
+
+        PlacedModule pm;
+        pm.moduleId = *type;
+        pm.position = QPoint(static_cast<int>(*x), static_cast<int>(*y));
+        pm.rotation = parseRotationString(*rot);
+        result.push_back(std::move(pm));
+    }
+    return result;
+}
+
 }  // namespace
 
 
@@ -418,43 +459,13 @@ ShipsConfig ConfigLoader::loadShips(const std::string& path)
             def.loot.scrapDrop = static_cast<int>(requireInt(lMt["scrap_drop"], file, lPath + ".scrap_drop"));
         }
 
-        // Optional: combat
+        // Optional: default_modules (REQ-WAV-DEFAULT-MODULES)
-        if (mt.contains("combat"))
+        if (mt.contains("default_modules"))
         {
-            const std::string cPath = elemPath + ".combat";
+            const toml::array& modArr = requireArray(mt["default_modules"], file,
-            const toml::table& cTable = requireTable(mt["combat"], file, cPath);
+                elemPath + ".default_modules");
-            toml::table& cMt = const_cast<toml::table&>(cTable);
+            def.defaultModules = parsePlacedModules(modArr, file,
-            ShipCombat combat {
+                elemPath + ".default_modules");
-                requireFormula(cMt["damage_formula"],       file, cPath + ".damage_formula"),
-                requireFormula(cMt["attack_range_formula"], file, cPath + ".attack_range_formula"),
-                requireFormula(cMt["attack_rate_formula"],  file, cPath + ".attack_rate_formula"),
-            };
-            def.combat = std::move(combat);
-        }
-
-        // Optional: salvage
-        if (mt.contains("salvage"))
-        {
-            const std::string sPath = elemPath + ".salvage";
-            const toml::table& sTable = requireTable(mt["salvage"], file, sPath);
-            toml::table& sMt = const_cast<toml::table&>(sTable);
-            ShipSalvage salvage;
-            salvage.collectionRange = requireDouble(sMt["collection_range"], file, sPath + ".collection_range");
-            salvage.cargoCapacity   = static_cast<int>(requireInt(sMt["cargo_capacity"], file, sPath + ".cargo_capacity"));
-            def.salvage = salvage;
-        }
-
-        // Optional: repair
-        if (mt.contains("repair"))
-        {
-            const std::string rPath = elemPath + ".repair";
-            const toml::table& rTable = requireTable(mt["repair"], file, rPath);
-            toml::table& rMt = const_cast<toml::table&>(rTable);
-            ShipRepair repair {
-                requireFormula(rMt["repair_rate_formula"],  file, rPath + ".repair_rate_formula"),
-                requireFormula(rMt["repair_range_formula"], file, rPath + ".repair_range_formula"),
-            };
-            def.repair = std::move(repair);
         }
 
         cfg.ships.push_back(std::move(def));
@@ -514,9 +525,11 @@ static const StatEntry kKnownStats[] = {
     {"health",   "hp"},
     {"movement", "speed"},
     {"sensor",   "sensor_range"},
-    {"combat",   "damage"},
+    {"weapon",   "damage"},
-    {"combat",   "attack_range"},
+    {"weapon",   "attack_range"},
-    {"combat",   "attack_rate"},
+    {"weapon",   "attack_rate"},
+    {"salvage",  "collection_range"},
+    {"salvage",  "cargo_capacity"},
     {"repair",   "repair_rate"},
     {"repair",   "repair_range"},
 };
@@ -597,6 +610,60 @@ ModulesConfig ConfigLoader::loadModules(const std::string& path)
             }
         }
 
+        // Weapon capability section: [module.weapon] with base stat formulas
+        if (mt.contains("weapon"))
+        {
+            const std::string wPath = elemPath + ".weapon";
+            const toml::table& wTable = requireTable(mt["weapon"], file, wPath);
+            toml::table& wMt = const_cast<toml::table&>(wTable);
+            if (wMt.contains("damage_formula") || wMt.contains("attack_range_formula")
+                || wMt.contains("attack_rate_formula"))
+            {
+                ModuleWeaponCapability cap;
+                cap.damageFormula      = requireFormula(wMt["damage_formula"],
+                    file, wPath + ".damage_formula");
+                cap.attackRangeFormula = requireFormula(wMt["attack_range_formula"],
+                    file, wPath + ".attack_range_formula");
+                cap.attackRateFormula  = requireFormula(wMt["attack_rate_formula"],
+                    file, wPath + ".attack_rate_formula");
+                def.weaponCapability = std::move(cap);
+            }
+        }
+
+        // Salvage capability section: [module.salvage] with base stat formulas
+        if (mt.contains("salvage"))
+        {
+            const std::string sPath = elemPath + ".salvage";
+            const toml::table& sTable = requireTable(mt["salvage"], file, sPath);
+            toml::table& sMt = const_cast<toml::table&>(sTable);
+            if (sMt.contains("collection_range_formula") || sMt.contains("cargo_capacity_formula"))
+            {
+                ModuleSalvageCapability cap;
+                cap.collectionRangeFormula = requireFormula(sMt["collection_range_formula"],
+                    file, sPath + ".collection_range_formula");
+                cap.cargoCapacityFormula   = requireFormula(sMt["cargo_capacity_formula"],
+                    file, sPath + ".cargo_capacity_formula");
+                def.salvageCapability = std::move(cap);
+            }
+        }
+
+        // Repair capability section: [module.repair] with base stat formulas
+        if (mt.contains("repair"))
+        {
+            const std::string rPath = elemPath + ".repair";
+            const toml::table& rTable = requireTable(mt["repair"], file, rPath);
+            toml::table& rMt = const_cast<toml::table&>(rTable);
+            if (rMt.contains("repair_rate_formula") || rMt.contains("repair_range_formula"))
+            {
+                ModuleRepairCapability cap;
+                cap.repairRateFormula  = requireFormula(rMt["repair_rate_formula"],
+                    file, rPath + ".repair_rate_formula");
+                cap.repairRangeFormula = requireFormula(rMt["repair_range_formula"],
+                    file, rPath + ".repair_range_formula");
+                def.repairCapability = std::move(cap);
+            }
+        }
+
         cfg.modules.push_back(std::move(def));
     }
 

src/lib/config/ModulesConfig.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <optional>
 #include <string>
 #include <vector>
 
@@ -15,6 +16,26 @@ struct ModuleStatModifier
     Formula formula;
 };
 
+// Capability sections — present when the module grants that capability.
+struct ModuleWeaponCapability
+{
+    Formula damageFormula;
+    Formula attackRangeFormula;
+    Formula attackRateFormula;
+};
+
+struct ModuleSalvageCapability
+{
+    Formula collectionRangeFormula;
+    Formula cargoCapacityFormula;
+};
+
+struct ModuleRepairCapability
+{
+    Formula repairRateFormula;
+    Formula repairRangeFormula;
+};
+
 struct ModuleDef
 {
     std::string id;
@@ -26,6 +47,10 @@ struct ModuleDef
     std::string fillColor;
     std::string glyph;
     std::vector<ModuleStatModifier> statModifiers;
+
+    std::optional<ModuleWeaponCapability>  weaponCapability;
+    std::optional<ModuleSalvageCapability> salvageCapability;
+    std::optional<ModuleRepairCapability>  repairCapability;
 };
 
 struct ModulesConfig

src/lib/config/ShipsConfig.h

@@ -1,11 +1,11 @@
 #pragma once
 
-#include <optional>
 #include <string>
 #include <vector>
 
 #include "Formula.h"
 #include "RecipesConfig.h"  // for RecipeIngredient
+#include "ShipLayout.h"     // for PlacedModule
 
 // Build materials and initial per-schematic production level
 // (REQ-BLD-SHIPYARD, REQ-DEF-SCHEMATIC-DROP).
@@ -42,27 +42,6 @@ struct ShipSensor
     Formula sensorRangeFormula;  // REQ-SHP-SENSOR, REQ-SHP-STATS
 };
 
-struct ShipCombat
-{
-    Formula damageFormula;
-    Formula attackRangeFormula;
-    Formula attackRateFormula;  // shots per second
-};
-
-// Optional; present only on salvage ships (REQ-SHP-SALVAGE).
-struct ShipSalvage
-{
-    double collectionRange;
-    int cargoCapacity;
-};
-
-// Optional; present only on repair ships (REQ-SHP-REPAIR).
-struct ShipRepair
-{
-    Formula repairRateFormula;
-    Formula repairRangeFormula;
-};
-
 // Scrap dropped on destruction (REQ-RES-SCRAP-DROP).
 struct ShipLoot
 {
@@ -82,12 +61,8 @@ struct ShipDef
     ShipSensor sensor;
     ShipLoot loot;
 
-    // Role-specific sections. A ship is a combat ship if combat is present,
+    // Module layout used for enemy wave ships (REQ-WAV-DEFAULT-MODULES).
-    // a salvage ship if salvage is present, etc. A ship may have multiple
+    std::vector<PlacedModule> defaultModules;
-    // of these set (hybrid ships) once the behavior systems support it.
-    std::optional<ShipCombat> combat;
-    std::optional<ShipSalvage> salvage;
-    std::optional<ShipRepair> repair;
 };
 
 struct ShipsConfig

src/lib/core/EntityAdmin.cpp

@@ -18,6 +18,11 @@ entt::entity EntityAdmin::createEntity()
     return m_registry.create();
 }
 
+entt::entity EntityAdmin::createModuleEntity()
+{
+    return m_registry.create();
+}
+
 bool EntityAdmin::isValid(entt::entity entity) const
 {
     return m_registry.valid(entity);

src/lib/core/EntityAdmin.h

@@ -66,6 +66,10 @@ public:
 
     entt::entity spawnHqProxy(QVector2D position, float hp, float maxHp);
 
+    // Creates a bare entity for module child entities (weapons, salvage, repair).
+    // Caller is responsible for attaching all required components.
+    entt::entity createModuleEntity();
+
 private:
     entt::entity createEntity();
 

src/lib/ecs/component/ModuleOwnerComponent.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include "entt/entity/entity.hpp"
+
+// Links a capability module child entity back to its owner ship or station.
+struct ModuleOwnerComponent
+{
+    entt::entity owner;
+};

src/lib/ecs/component/RepairBehaviorComponent.h

@@ -7,4 +7,5 @@
 struct RepairBehaviorComponent
 {
     std::optional<entt::entity> currentTarget;
+    float maxRepairRange = 0.0f;
 };

src/lib/ecs/component/SalvageBehaviorComponent.h

@@ -9,5 +9,6 @@
 struct SalvageBehaviorComponent
 {
     std::optional<QVector2D> scrapTarget;
-    BuildingId deliveryBay;  // kInvalidBuildingId until assigned at a salvage bay
+    BuildingId deliveryBay;      // kInvalidBuildingId until assigned at a salvage bay
+    float maxCollectionRange = 0.0f;
 };

src/lib/ecs/system/AiSystem.cpp

@@ -1,6 +1,7 @@
 #include "AiSystem.h"
 
 #include <optional>
+#include <unordered_map>
 #include <vector>
 
 #include <QVector2D>
@@ -14,6 +15,7 @@
 #include "HealthComponent.h"
 #include "HomeReturnBehaviorComponent.h"
 #include "HqProxyComponent.h"
+#include "ModuleOwnerComponent.h"
 #include "MovementIntentComponent.h"
 #include "PositionComponent.h"
 #include "RallyBehaviorComponent.h"
@@ -224,13 +226,13 @@ void AiSystem::tickRepairBehavior(EntityAdmin& admin, BuildingSystem& buildings)
             }
         });
 
-    admin.forEach<RepairBehaviorComponent, RepairToolComponent, PositionComponent,
+    admin.forEach<RepairBehaviorComponent, PositionComponent,
                   FactionComponent, SensorRangeComponent, MovementIntentComponent>(
-        [&](entt::entity e, RepairBehaviorComponent& rb, RepairToolComponent& rt,
+        [&](entt::entity e, RepairBehaviorComponent& rb,
             PositionComponent& pos, FactionComponent& /*faction*/,
             SensorRangeComponent& sensor, MovementIntentComponent& intent)
         {
-            const float repairRange = rt.range;
+            const float repairRange = rb.maxRepairRange;
 
             // Flee if enemy nearby.
             bool enemyNearby = false;
@@ -303,17 +305,6 @@ void AiSystem::tickRepairBehavior(EntityAdmin& admin, BuildingSystem& buildings)
                 targetPos = admin.get<PositionComponent>(target).value;
             }
 
-            const float distToTarget = (targetPos - pos.value).length();
-            if (distToTarget <= repairRange)
-            {
-                if (admin.isValid(target) && admin.hasAll<HealthComponent>(target))
-                {
-                    HealthComponent& targetHealth = admin.get<HealthComponent>(target);
-                    targetHealth.hp = std::min(targetHealth.hp + rt.ratePerTick,
-                                               targetHealth.maxHp);
-                }
-            }
-
             if (2 > intent.priority)
             {
                 intent = MovementIntentComponent{2, targetPos};
@@ -321,6 +312,33 @@ void AiSystem::tickRepairBehavior(EntityAdmin& admin, BuildingSystem& buildings)
         });
 }
 
+// ---------------------------------------------------------------------------
+// tickRepairTools
+// ---------------------------------------------------------------------------
+
+void AiSystem::tickRepairTools(EntityAdmin& admin)
+{
+    admin.forEach<RepairToolComponent, ModuleOwnerComponent>(
+        [&](entt::entity /*e*/, RepairToolComponent& rt, const ModuleOwnerComponent& owner)
+        {
+            if (!admin.hasAll<RepairBehaviorComponent>(owner.owner)) { return; }
+            const RepairBehaviorComponent& rb =
+                admin.get<RepairBehaviorComponent>(owner.owner);
+            if (!rb.currentTarget) { return; }
+
+            const entt::entity target = *rb.currentTarget;
+            if (!admin.isValid(target) || !admin.hasAll<HealthComponent>(target)) { return; }
+
+            const PositionComponent& ownerPos = admin.get<PositionComponent>(owner.owner);
+            const PositionComponent& targetPos = admin.get<PositionComponent>(target);
+            const float dist = (targetPos.value - ownerPos.value).length();
+            if (dist > rt.range) { return; }
+
+            HealthComponent& targetHealth = admin.get<HealthComponent>(target);
+            targetHealth.hp = std::min(targetHealth.hp + rt.ratePerTick, targetHealth.maxHp);
+        });
+}
+
 // ---------------------------------------------------------------------------
 // tickSalvageBehavior  (priority 1)
 // ---------------------------------------------------------------------------
@@ -344,15 +362,31 @@ void AiSystem::tickSalvageBehavior(EntityAdmin& admin, ScrapSystem& scraps,
             }
         });
 
+    // Aggregate cargo across all salvage-module children per owning ship.
+    struct AggregatedCargo
+    {
+        int totalCurrent  = 0;
+        int totalCapacity = 0;
+    };
+    std::unordered_map<entt::entity, AggregatedCargo> cargoByShip;
+    admin.forEach<SalvageCargoComponent, ModuleOwnerComponent>(
+        [&](entt::entity /*ce*/, const SalvageCargoComponent& c, const ModuleOwnerComponent& o)
+        {
+            AggregatedCargo& agg = cargoByShip[o.owner];
+            agg.totalCurrent  += c.current;
+            agg.totalCapacity += c.capacity;
+        });
+
     const std::vector<ScrapInfo> allScrap = scraps.allScrapInfo();
 
-    admin.forEach<SalvageBehaviorComponent, SalvageCargoComponent, PositionComponent,
+    admin.forEach<SalvageBehaviorComponent, PositionComponent,
                   SensorRangeComponent, MovementIntentComponent>(
-        [&](entt::entity /*e*/, SalvageBehaviorComponent& salvageBehavior,
+        [&](entt::entity e, SalvageBehaviorComponent& salvageBehavior,
-            SalvageCargoComponent& cargo, PositionComponent& pos,
+            PositionComponent& pos,
             SensorRangeComponent& sensor, MovementIntentComponent& intent)
         {
-            const float collectRange = cargo.collectionRange;
+            const float collectRange = salvageBehavior.maxCollectionRange;
+            const AggregatedCargo& cargoState = cargoByShip[e];
 
             // Assign nearest SalvageBay if needed.
             if (salvageBehavior.deliveryBay == kInvalidBuildingId)
@@ -378,7 +412,8 @@ void AiSystem::tickSalvageBehavior(EntityAdmin& admin, ScrapSystem& scraps,
                 }
             }
 
-            const bool cargoFull = (cargo.current >= cargo.capacity);
+            const bool cargoFull = (cargoState.totalCurrent >= cargoState.totalCapacity
+                                    && cargoState.totalCapacity > 0);
 
             if (cargoFull)
             {
@@ -389,17 +424,26 @@ void AiSystem::tickSalvageBehavior(EntityAdmin& admin, ScrapSystem& scraps,
                 if (bayId != kInvalidBuildingId
                     && (pos.value - bayPos).length() <= 1.0f)
                 {
-                    if (buildings.deliverScrapToSalvageBay(bayId))
+                    // Decrement first non-empty salvage child.
-                    {
+                    bool delivered = false;
-                        --cargo.current;
+                    admin.forEach<SalvageCargoComponent, ModuleOwnerComponent>(
-                    }
+                        [&](entt::entity /*ce*/, SalvageCargoComponent& c,
+                            const ModuleOwnerComponent& o)
+                        {
+                            if (delivered || o.owner != e || c.current <= 0) { return; }
+                            if (buildings.deliverScrapToSalvageBay(bayId))
+                            {
+                                --c.current;
+                                delivered = true;
+                            }
+                        });
                 }
                 return;
             }
 
             // Retreat if enemy near and cargo empty.
             bool retreating = false;
-            if (cargo.current == 0)
+            if (cargoState.totalCurrent == 0)
             {
                 for (const EnemyShipPos& enemy : enemyShips)
                 {
@@ -417,16 +461,24 @@ void AiSystem::tickSalvageBehavior(EntityAdmin& admin, ScrapSystem& scraps,
             }
             if (retreating) { return; }
 
-            // Collect nearby scrap.
+            // Collect nearby scrap — increment first non-full salvage child.
             for (const ScrapInfo& si : allScrap)
             {
                 if ((si.position - pos.value).length() <= collectRange)
                 {
-                    if (scraps.consume(si.entity))
+                    bool collected = false;
-                    {
+                    admin.forEach<SalvageCargoComponent, ModuleOwnerComponent>(
-                        ++cargo.current;
+                        [&](entt::entity /*ce*/, SalvageCargoComponent& c,
-                        salvageBehavior.scrapTarget = std::nullopt;
+                            const ModuleOwnerComponent& o)
-                    }
+                        {
+                            if (collected || o.owner != e || c.current >= c.capacity) { return; }
+                            if (scraps.consume(si.entity))
+                            {
+                                ++c.current;
+                                salvageBehavior.scrapTarget = std::nullopt;
+                                collected = true;
+                            }
+                        });
                     break;
                 }
             }

src/lib/ecs/system/AiSystem.h

@@ -10,5 +10,6 @@ public:
     void tickHomeReturnBehavior(EntityAdmin& admin);
     void tickThreatResponseBehavior(EntityAdmin& admin, const BuildingSystem& buildings);
     void tickRepairBehavior(EntityAdmin& admin, BuildingSystem& buildings);
+    void tickRepairTools(EntityAdmin& admin);
     void tickSalvageBehavior(EntityAdmin& admin, ScrapSystem& scraps, BuildingSystem& buildings);
 };

src/lib/ecs/system/CombatSystem.cpp

@@ -2,8 +2,8 @@
 
 #include "EntityAdmin.h"
 #include "FactionComponent.h"
-#include "StationBodyComponent.h"
 #include "HealthComponent.h"
+#include "ModuleOwnerComponent.h"
 #include "PositionComponent.h"
 #include "SensorRangeComponent.h"
 #include "ShipIdentityComponent.h"
@@ -22,24 +22,18 @@ void CombatSystem::tick(Tick currentTick,
                          BuildingSystem& /*buildings*/,
                          std::vector<FireEvent>& outFireEvents)
 {
-    // Ship weapons.
+    // All weapons (ships and stations) are child entities linked via ModuleOwnerComponent.
-    admin.forEach<WeaponComponent, ThreatResponseBehaviorComponent,
+    admin.forEach<WeaponComponent, ModuleOwnerComponent>(
-                  PositionComponent, FactionComponent>(
+        [&](entt::entity /*e*/, WeaponComponent& weapon, const ModuleOwnerComponent& owner)
-        [&](entt::entity e, WeaponComponent& weapon,
-            ThreatResponseBehaviorComponent& threatResponseBehavior,
-            PositionComponent& pos, FactionComponent& faction)
         {
-            weapon.currentTarget = threatResponseBehavior.currentTarget;
+            if (admin.hasAll<ThreatResponseBehaviorComponent>(owner.owner))
-            resolveWeapon(e, weapon, pos, faction, currentTick, admin, outFireEvents);
+            {
-        });
+                weapon.currentTarget =
-
+                    admin.get<ThreatResponseBehaviorComponent>(owner.owner).currentTarget;
-    // Station weapons (entities with StationBodyComponent; ships are excluded because
+            }
-    // they lack that component and are already handled by the ship loop above).
+            const PositionComponent& pos     = admin.get<PositionComponent>(owner.owner);
-    admin.forEach<WeaponComponent, PositionComponent, FactionComponent, StationBodyComponent>(
+            const FactionComponent&  faction = admin.get<FactionComponent>(owner.owner);
-        [&](entt::entity e, WeaponComponent& weapon, PositionComponent& pos,
+            resolveWeapon(owner.owner, weapon, pos, faction, currentTick, admin, outFireEvents);
-            FactionComponent& faction, const StationBodyComponent& /*sb*/)
-        {
-            resolveWeapon(e, weapon, pos, faction, currentTick, admin, outFireEvents);
         });
 }
 

src/lib/ecs/system/ShipSystem.cpp

@@ -3,11 +3,13 @@
 #include <cassert>
 #include <map>
 #include <utility>
+#include <vector>
 
 #include "DynamicBodyComponent.h"
 #include "EntityAdmin.h"
 #include "FactionComponent.h"
 #include "HealthComponent.h"
+#include "ModuleOwnerComponent.h"
 #include "ModulesConfig.h"
 #include "MovementIntentComponent.h"
 #include "RallyBehaviorComponent.h"
@@ -85,17 +87,182 @@ entt::entity ShipSystem::spawn(const std::string& schematicId, int level,
         angularAccelPerTick, maxRotationSpeedPerTick, sensorRange,
         level, schematicId, isEnemy);
 
-    // Optional components based on ship role.
+    // Determine module list: configured layout takes precedence over default.
-    if (def->combat)
+    const std::vector<PlacedModule>& modules =
-    {
+        layout.has_value() ? layout->placedModules : def->defaultModules;
-        WeaponComponent w;
-        w.damage        = static_cast<float>(def->combat->damageFormula.evaluate(x));
-        w.range         = static_cast<float>(def->combat->attackRangeFormula.evaluate(x));
-        w.fireRateHz    = static_cast<float>(def->combat->attackRateFormula.evaluate(x));
-        w.cooldownTicks = 0.0f;
-        w.currentTarget = std::nullopt;
-        m_admin.addComponent<WeaponComponent>(entity, w);
 
+    // --- Pass 1: create capability child entities ----------------------------
+    std::vector<entt::entity> weaponChildren;
+    std::vector<entt::entity> salvageChildren;
+    std::vector<entt::entity> repairChildren;
+
+    for (const PlacedModule& pm : modules)
+    {
+        const ModuleDef* modDef = findModuleDef(pm.moduleId);
+        if (!modDef) { continue; }
+
+        const double mx = static_cast<double>(modDef->playerProductionLevel);
+
+        if (modDef->weaponCapability)
+        {
+            WeaponComponent w;
+            w.damage        = static_cast<float>(
+                modDef->weaponCapability->damageFormula.evaluate(mx));
+            w.range         = static_cast<float>(
+                modDef->weaponCapability->attackRangeFormula.evaluate(mx));
+            w.fireRateHz    = static_cast<float>(
+                modDef->weaponCapability->attackRateFormula.evaluate(mx));
+            w.cooldownTicks = 0.0f;
+            w.currentTarget = std::nullopt;
+
+            entt::entity child = m_admin.createModuleEntity();
+            m_admin.addComponent<WeaponComponent>(child, w);
+            m_admin.addComponent<ModuleOwnerComponent>(child, ModuleOwnerComponent{entity});
+            weaponChildren.push_back(child);
+        }
+
+        if (modDef->salvageCapability)
+        {
+            SalvageCargoComponent cargo;
+            cargo.capacity = static_cast<int>(
+                modDef->salvageCapability->cargoCapacityFormula.evaluate(mx));
+            cargo.current  = 0;
+            cargo.collectionRange = static_cast<float>(
+                modDef->salvageCapability->collectionRangeFormula.evaluate(mx));
+
+            entt::entity child = m_admin.createModuleEntity();
+            m_admin.addComponent<SalvageCargoComponent>(child, cargo);
+            m_admin.addComponent<ModuleOwnerComponent>(child, ModuleOwnerComponent{entity});
+            salvageChildren.push_back(child);
+        }
+
+        if (modDef->repairCapability)
+        {
+            RepairToolComponent rt;
+            rt.ratePerTick   = static_cast<float>(
+                modDef->repairCapability->repairRateFormula.evaluate(mx))
+                / static_cast<float>(kTickRateHz);
+            rt.range         = static_cast<float>(
+                modDef->repairCapability->repairRangeFormula.evaluate(mx));
+            rt.currentTarget = std::nullopt;
+
+            entt::entity child = m_admin.createModuleEntity();
+            m_admin.addComponent<RepairToolComponent>(child, rt);
+            m_admin.addComponent<ModuleOwnerComponent>(child, ModuleOwnerComponent{entity});
+            repairChildren.push_back(child);
+        }
+    }
+
+    // --- Pass 2: apply passive stat modifiers --------------------------------
+
+    // Accumulate hull-level modifiers.
+    std::map<std::string, std::pair<double, double>> hullMods;
+    // Per-capability-type modifier accumulators (applied to each child).
+    std::map<std::string, std::pair<double, double>> weaponMods;
+    std::map<std::string, std::pair<double, double>> salvageMods;
+    std::map<std::string, std::pair<double, double>> repairMods;
+
+    for (const PlacedModule& pm : modules)
+    {
+        const ModuleDef* modDef = findModuleDef(pm.moduleId);
+        if (!modDef) { continue; }
+
+        const double mx = static_cast<double>(modDef->playerProductionLevel);
+
+        for (const ModuleStatModifier& sm : modDef->statModifiers)
+        {
+            const double val = sm.formula.evaluate(mx);
+
+            // Route modifier to the correct accumulator by stat category.
+            // weapon/salvage/repair stats go to the corresponding child map;
+            // hull stats (hp, speed, sensor_range, …) go to hullMods.
+            const bool isWeaponStat  = (sm.stat == "damage"
+                                     || sm.stat == "attack_range"
+                                     || sm.stat == "attack_rate");
+            const bool isSalvageStat = (sm.stat == "collection_range"
+                                     || sm.stat == "cargo_capacity");
+            const bool isRepairStat  = (sm.stat == "repair_rate"
+                                     || sm.stat == "repair_range");
+
+            std::map<std::string, std::pair<double, double>>* target = &hullMods;
+            if (isWeaponStat)  { target = &weaponMods;  }
+            if (isSalvageStat) { target = &salvageMods; }
+            if (isRepairStat)  { target = &repairMods;  }
+
+            std::pair<double, double>& acc = (*target)[sm.stat];
+            if (sm.modifierType == "multiplicative")
+            {
+                acc.first += (val - 1.0);
+            }
+            else
+            {
+                acc.second += val;
+            }
+        }
+    }
+
+    // Helper: apply a modifier map to a float stat.
+    auto applyMod = [](float& stat, const std::string& name,
+                       const std::map<std::string, std::pair<double, double>>& mods)
+    {
+        const auto it = mods.find(name);
+        if (it != mods.end())
+        {
+            stat = static_cast<float>(
+                static_cast<double>(stat) * (1.0 + it->second.first)
+                + it->second.second);
+        }
+    };
+
+    // Apply hull modifiers.
+    {
+        HealthComponent& health        = m_admin.get<HealthComponent>(entity);
+        DynamicBodyComponent& dynamics = m_admin.get<DynamicBodyComponent>(entity);
+        SensorRangeComponent& sensor   = m_admin.get<SensorRangeComponent>(entity);
+
+        applyMod(health.maxHp,                              "hp",                    hullMods);
+        health.hp = health.maxHp;
+        applyMod(dynamics.maxSpeedPerTick,                  "speed",                 hullMods);
+        applyMod(dynamics.mainAccelerationPerTick,          "main_acceleration",     hullMods);
+        applyMod(dynamics.maneuveringAccelerationPerTick,   "maneuvering_acceleration", hullMods);
+        applyMod(dynamics.angularAccelerationPerTick,       "angular_acceleration",  hullMods);
+        applyMod(dynamics.maxRotationSpeedPerTick,          "max_rotation_speed",    hullMods);
+        applyMod(sensor.value,                              "sensor_range",          hullMods);
+    }
+
+    // Apply weapon modifiers to each weapon child.
+    for (entt::entity child : weaponChildren)
+    {
+        WeaponComponent& w = m_admin.get<WeaponComponent>(child);
+        applyMod(w.damage,     "damage",       weaponMods);
+        applyMod(w.range,      "attack_range", weaponMods);
+        applyMod(w.fireRateHz, "attack_rate",  weaponMods);
+    }
+
+    // Apply salvage modifiers to each salvage child.
+    for (entt::entity child : salvageChildren)
+    {
+        SalvageCargoComponent& c = m_admin.get<SalvageCargoComponent>(child);
+        float fRange    = c.collectionRange;
+        float fCapacity = static_cast<float>(c.capacity);
+        applyMod(fRange,    "collection_range", salvageMods);
+        applyMod(fCapacity, "cargo_capacity",   salvageMods);
+        c.collectionRange = fRange;
+        c.capacity        = static_cast<int>(fCapacity);
+    }
+
+    // Apply repair modifiers to each repair child.
+    for (entt::entity child : repairChildren)
+    {
+        RepairToolComponent& rt = m_admin.get<RepairToolComponent>(child);
+        applyMod(rt.ratePerTick, "repair_rate",  repairMods);
+        applyMod(rt.range,       "repair_range", repairMods);
+    }
+
+    // --- Pass 3: attach behavior components based on capability presence -----
+
+    if (!weaponChildren.empty())
+    {
         m_admin.addComponent<ThreatResponseBehaviorComponent>(
             entity, ThreatResponseBehaviorComponent{});
 
@@ -106,95 +273,35 @@ entt::entity ShipSystem::spawn(const std::string& schematicId, int level,
         }
     }
 
-    if (def->salvage)
+    if (!salvageChildren.empty())
     {
-        SalvageCargoComponent cargo;
+        float maxCollRange = 0.0f;
-        cargo.capacity        = def->salvage->cargoCapacity;
+        for (entt::entity child : salvageChildren)
-        cargo.current         = 0;
+        {
-        cargo.collectionRange = static_cast<float>(def->salvage->collectionRange);
+            const float r = m_admin.get<SalvageCargoComponent>(child).collectionRange;
-        m_admin.addComponent<SalvageCargoComponent>(entity, cargo);
+            if (r > maxCollRange) { maxCollRange = r; }
+        }
 
-        SalvageBehaviorComponent salvageBehavior;
+        SalvageBehaviorComponent sb;
-        salvageBehavior.scrapTarget = std::nullopt;
+        sb.scrapTarget        = std::nullopt;
-        salvageBehavior.deliveryBay = kInvalidBuildingId;
+        sb.deliveryBay        = kInvalidBuildingId;
-        m_admin.addComponent<SalvageBehaviorComponent>(entity, salvageBehavior);
+        sb.maxCollectionRange = maxCollRange;
+        m_admin.addComponent<SalvageBehaviorComponent>(entity, sb);
     }
 
-    if (def->repair)
+    if (!repairChildren.empty())
     {
-        RepairToolComponent rt;
+        float maxRepairRange = 0.0f;
-        rt.ratePerTick    = static_cast<float>(def->repair->repairRateFormula.evaluate(x));
+        for (entt::entity child : repairChildren)
-        rt.range          = static_cast<float>(def->repair->repairRangeFormula.evaluate(x));
-        rt.currentTarget  = std::nullopt;
-        m_admin.addComponent<RepairToolComponent>(entity, rt);
-
-        m_admin.addComponent<RepairBehaviorComponent>(entity, RepairBehaviorComponent{});
-    }
-
-    // Apply module stat modifiers (REQ-MOD-STAT-CALC).
-    if (layout.has_value() && !layout->placedModules.empty())
-    {
-        std::map<std::string, std::pair<double, double>> mods;
-        for (const PlacedModule& pm : layout->placedModules)
         {
-            const ModuleDef* modDef = findModuleDef(pm.moduleId);
+            const float r = m_admin.get<RepairToolComponent>(child).range;
-            if (!modDef)
+            if (r > maxRepairRange) { maxRepairRange = r; }
-            {
-                continue;
-            }
-            for (const ModuleStatModifier& sm : modDef->statModifiers)
-            {
-                const double val = sm.formula.evaluate(
-                    static_cast<double>(modDef->playerProductionLevel));
-                std::pair<double, double>& acc = mods[sm.stat];
-                if (sm.modifierType == "multiplicative")
-                {
-                    acc.first += (val - 1.0);
-                }
-                else
-                {
-                    acc.second += val;
-                }
-            }
         }
 
-        auto applyMod = [&mods](float& stat, const std::string& name) {
+        RepairBehaviorComponent rb;
-            const std::map<std::string, std::pair<double, double>>::const_iterator it =
+        rb.currentTarget  = std::nullopt;
-                mods.find(name);
+        rb.maxRepairRange = maxRepairRange;
-            if (it != mods.end())
+        m_admin.addComponent<RepairBehaviorComponent>(entity, rb);
-            {
-                stat = static_cast<float>(
-                    static_cast<double>(stat) * (1.0 + it->second.first)
-                    + it->second.second);
-            }
-        };
-
-        HealthComponent& health           = m_admin.get<HealthComponent>(entity);
-        DynamicBodyComponent& dynamics    = m_admin.get<DynamicBodyComponent>(entity);
-        SensorRangeComponent& sensor      = m_admin.get<SensorRangeComponent>(entity);
-
-        applyMod(health.maxHp, "hp");
-        health.hp = health.maxHp;
-        applyMod(dynamics.maxSpeedPerTick, "speed");
-        applyMod(dynamics.mainAccelerationPerTick, "main_acceleration");
-        applyMod(dynamics.maneuveringAccelerationPerTick, "maneuvering_acceleration");
-        applyMod(dynamics.angularAccelerationPerTick, "angular_acceleration");
-        applyMod(dynamics.maxRotationSpeedPerTick, "max_rotation_speed");
-        applyMod(sensor.value, "sensor_range");
-
-        if (m_admin.hasAll<WeaponComponent>(entity))
-        {
-            WeaponComponent& weapon = m_admin.get<WeaponComponent>(entity);
-            applyMod(weapon.damage, "damage");
-            applyMod(weapon.range, "attack_range");
-            applyMod(weapon.fireRateHz, "attack_rate");
-        }
-        if (m_admin.hasAll<RepairToolComponent>(entity))
-        {
-            RepairToolComponent& repairTool = m_admin.get<RepairToolComponent>(entity);
-            applyMod(repairTool.ratePerTick, "repair_rate");
-            applyMod(repairTool.range, "repair_range");
-        }
     }
 
     return entity;
@@ -202,6 +309,13 @@ entt::entity ShipSystem::spawn(const std::string& schematicId, int level,
 
 void ShipSystem::despawn(entt::entity entity)
 {
+    std::vector<entt::entity> children;
+    m_admin.forEach<ModuleOwnerComponent>(
+        [&](entt::entity e, const ModuleOwnerComponent& o)
+        {
+            if (o.owner == entity) { children.push_back(e); }
+        });
+    for (entt::entity child : children) { m_admin.destroy(child); }
     m_admin.destroy(entity);
 }
 

src/lib/sim/Simulation.cpp

@@ -8,6 +8,7 @@
 #include "DynamicBodySystem.h"
 #include "FactionComponent.h"
 #include "HealthComponent.h"
+#include "ModuleOwnerComponent.h"
 #include "MovementIntentSystem.h"
 #include "PositionComponent.h"
 #include "ScrapSystem.h"
@@ -173,6 +174,7 @@ void Simulation::tick()
     m_aiSystem->tickHomeReturnBehavior(m_admin);                                          // priority 4
     m_aiSystem->tickThreatResponseBehavior(m_admin, *m_buildingSystem);                  // priority 3
     m_aiSystem->tickRepairBehavior(m_admin, *m_buildingSystem);                          // priority 2
+    m_aiSystem->tickRepairTools(m_admin);
     m_aiSystem->tickSalvageBehavior(m_admin, *m_scrapSystem, *m_buildingSystem);         // priority 1
 
     // Step 8: combat resolution
@@ -255,7 +257,12 @@ void Simulation::placeInitialStructures()
         }
         m_playerStation1Entity = m_admin.spawnStation(
             anchor, psParsed.footprint, absCells, psHp, psHp, false);
-        m_admin.addComponent<WeaponComponent>(m_playerStation1Entity, psWeapon);
+        {
+            entt::entity wChild = m_admin.createModuleEntity();
+            m_admin.addComponent<WeaponComponent>(wChild, psWeapon);
+            m_admin.addComponent<ModuleOwnerComponent>(wChild,
+                ModuleOwnerComponent{m_playerStation1Entity});
+        }
         m_buildingSystem->registerTileOccupancy(absCells, allocateBuildingId());
     }
     {
@@ -267,7 +274,12 @@ void Simulation::placeInitialStructures()
         }
         m_playerStation2Entity = m_admin.spawnStation(
             anchor, psParsed.footprint, absCells, psHp, psHp, false);
-        m_admin.addComponent<WeaponComponent>(m_playerStation2Entity, psWeapon);
+        {
+            entt::entity wChild = m_admin.createModuleEntity();
+            m_admin.addComponent<WeaponComponent>(wChild, psWeapon);
+            m_admin.addComponent<ModuleOwnerComponent>(wChild,
+                ModuleOwnerComponent{m_playerStation2Entity});
+        }
         m_buildingSystem->registerTileOccupancy(absCells, allocateBuildingId());
     }
 
@@ -316,7 +328,12 @@ void Simulation::placeEnemyStationSet(int generation)
         }
         m_currentEnemyStationEntities[0] = m_admin.spawnStation(
             anchor, esParsed.footprint, absCells, esHp, esHp, true);
-        m_admin.addComponent<WeaponComponent>(m_currentEnemyStationEntities[0], esWeapon);
+        {
+            entt::entity wChild = m_admin.createModuleEntity();
+            m_admin.addComponent<WeaponComponent>(wChild, esWeapon);
+            m_admin.addComponent<ModuleOwnerComponent>(wChild,
+                ModuleOwnerComponent{m_currentEnemyStationEntities[0]});
+        }
         m_buildingSystem->registerTileOccupancy(absCells, allocateBuildingId());
     }
     {
@@ -328,7 +345,12 @@ void Simulation::placeEnemyStationSet(int generation)
         }
         m_currentEnemyStationEntities[1] = m_admin.spawnStation(
             anchor, esParsed.footprint, absCells, esHp, esHp, true);
-        m_admin.addComponent<WeaponComponent>(m_currentEnemyStationEntities[1], esWeapon);
+        {
+            entt::entity wChild = m_admin.createModuleEntity();
+            m_admin.addComponent<WeaponComponent>(wChild, esWeapon);
+            m_admin.addComponent<ModuleOwnerComponent>(wChild,
+                ModuleOwnerComponent{m_currentEnemyStationEntities[1]});
+        }
         m_buildingSystem->registerTileOccupancy(absCells, allocateBuildingId());
     }
 }
@@ -407,6 +429,15 @@ void Simulation::tickDeathsAndLoot()
             m_scrapSystem->spawn(pos.value, scrap, despawnAt);
         }
         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);
     }
 

src/lib/sim/WaveSystem.cpp

@@ -34,7 +34,7 @@ void WaveSystem::tickWaveScheduler(Tick currentTick, ShipSystem& ships,
         if (currentTick >= entry.spawnAt)
         {
             ships.spawn(entry.schematicId, entry.level, entry.position,
-                        /*isEnemy=*/true);
+                        /*isEnemy=*/true, entry.layout);
         }
         else
         {
@@ -90,8 +90,9 @@ std::vector<WaveSystem::SpawnEntry> WaveSystem::composeWave(Tick currentTick,
     // Build eligible ship list with their costs at the current level.
     struct EligibleShip
     {
-        std::string schematicId;
+        std::string              schematicId;
-        double      cost;
+        double                   cost;
+        std::vector<PlacedModule> defaultModules;
     };
     std::vector<EligibleShip> eligible;
     for (const ShipDef& def : m_config.ships.ships)
@@ -100,8 +101,9 @@ std::vector<WaveSystem::SpawnEntry> WaveSystem::composeWave(Tick currentTick,
         if (cost > 0.0)
         {
             EligibleShip es;
-            es.schematicId = def.id;
+            es.schematicId    = def.id;
-            es.cost        = cost;
+            es.cost           = cost;
+            es.defaultModules = def.defaultModules;
             eligible.push_back(es);
         }
     }
@@ -151,11 +153,12 @@ std::vector<WaveSystem::SpawnEntry> WaveSystem::composeWave(Tick currentTick,
         budget -= chosen.cost;
 
         SpawnEntry entry;
-        entry.schematicId = chosen.schematicId;
+        entry.schematicId              = chosen.schematicId;
-        entry.level       = shipLevel;
+        entry.level                    = shipLevel;
-        entry.spawnAt     = 0;  // set below after all picks are done
+        entry.spawnAt                  = 0;  // set below after all picks are done
-        entry.position    = QVector2D(xDist(m_rng),
+        entry.position                 = QVector2D(xDist(m_rng),
-                                      static_cast<float>(yDist(m_rng)) + 0.5f);
+                                                   static_cast<float>(yDist(m_rng)) + 0.5f);
+        entry.layout.placedModules     = chosen.defaultModules;
         picked.push_back(entry);
     }
 

src/lib/sim/WaveSystem.h

@@ -7,6 +7,7 @@
 #include <QVector2D>
 
 #include "GameConfig.h"
+#include "ShipLayout.h"
 #include "Tick.h"
 
 class ShipSystem;
@@ -40,10 +41,11 @@ public:
 private:
     struct SpawnEntry
     {
-        std::string schematicId;
+        std::string      schematicId;
-        int         level;
+        int              level;
-        Tick        spawnAt;
+        Tick             spawnAt;
-        QVector2D   position;
+        QVector2D        position;
+        ShipLayoutConfig layout;
     };
 
     // Compose the next wave from the current threat budget, returning timed

src/test/BehaviorSystemTest.cpp

@@ -2,10 +2,13 @@
 
 #include <random>
 
+#include <QPoint>
 #include <QVector2D>
 
 #include "AiSystem.h"
 #include "BeltSystem.h"
+#include "ModuleOwnerComponent.h"
+#include "ShipLayout.h"
 #include "Building.h"
 #include "BuildingSystem.h"
 #include "BuildingType.h"
@@ -81,6 +84,7 @@ struct Fixture
         ai.tickHomeReturnBehavior(admin);
         ai.tickThreatResponseBehavior(admin, buildings);
         ai.tickRepairBehavior(admin, buildings);
+        ai.tickRepairTools(admin);
         ai.tickSalvageBehavior(admin, scraps, buildings);
         movementIntent.tick(admin);
         dynamicBody.tick(admin);
@@ -88,6 +92,28 @@ struct Fixture
     }
 };
 
+static ShipLayoutConfig makeSingleModuleLayout(const std::string& moduleId)
+{
+    PlacedModule pm;
+    pm.moduleId = moduleId;
+    pm.position = QPoint(1, 1);
+    pm.rotation = Rotation::East;
+    ShipLayoutConfig layout;
+    layout.placedModules.push_back(pm);
+    return layout;
+}
+
+static entt::entity firstSalvageChild(EntityAdmin& admin, entt::entity ship)
+{
+    entt::entity result = entt::null;
+    admin.forEach<SalvageCargoComponent, ModuleOwnerComponent>(
+        [&](entt::entity ce, const SalvageCargoComponent&, const ModuleOwnerComponent& o)
+        {
+            if (o.owner == ship && result == entt::null) { result = ce; }
+        });
+    return result;
+}
+
 // Helpers to read ECS data for a ship entity.
 static const MovementIntentComponent& intent(EntityAdmin& a, entt::entity e)
 {
@@ -299,7 +325,9 @@ TEST_CASE("BehaviorSystem: repair ship writes intent toward damaged friendly shi
           "[behavior]")
 {
     Fixture f;
-    const entt::entity repairShip = f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig repairLayout = makeSingleModuleLayout("repair_tool_module");
+    const entt::entity repairShip = f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f),
+                                                   false, repairLayout);
     const entt::entity friendly   = f.ships.spawn("interceptor",  1, QVector2D(5.0f, 0.0f));
 
     f.admin.get<HealthComponent>(friendly).hp = f.admin.get<HealthComponent>(friendly).maxHp * 0.5f;
@@ -315,7 +343,9 @@ TEST_CASE("BehaviorSystem: repair ship heals damaged ally within repair range",
           "[behavior]")
 {
     Fixture f;
-    const entt::entity repairShip = f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig repairLayout = makeSingleModuleLayout("repair_tool_module");
+    const entt::entity repairShip = f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f),
+                                                   false, repairLayout);
     const entt::entity friendly   = f.ships.spawn("interceptor",  1, QVector2D(1.0f, 0.0f));
 
     const float initialHp = f.admin.get<HealthComponent>(friendly).maxHp * 0.5f;
@@ -323,6 +353,7 @@ TEST_CASE("BehaviorSystem: repair ship heals damaged ally within repair range",
 
     f.ships.clearMovementIntents();
     f.ai.tickRepairBehavior(f.admin, f.buildings);
+    f.ai.tickRepairTools(f.admin);
 
     REQUIRE(health(f.admin, friendly).hp > initialHp);
 }
@@ -330,7 +361,8 @@ TEST_CASE("BehaviorSystem: repair ship heals damaged ally within repair range",
 TEST_CASE("BehaviorSystem: repair ship does not heal above maxHp", "[behavior]")
 {
     Fixture f;
-    f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig repairLayout = makeSingleModuleLayout("repair_tool_module");
+    f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f), false, repairLayout);
     const entt::entity friendly = f.ships.spawn("interceptor",  1, QVector2D(1.0f, 0.0f));
 
     f.admin.get<HealthComponent>(friendly).hp = f.admin.get<HealthComponent>(friendly).maxHp - 0.001f;
@@ -339,6 +371,7 @@ TEST_CASE("BehaviorSystem: repair ship does not heal above maxHp", "[behavior]")
     {
         f.ships.clearMovementIntents();
         f.ai.tickRepairBehavior(f.admin, f.buildings);
+        f.ai.tickRepairTools(f.admin);
     }
 
     const HealthComponent& h = health(f.admin, friendly);
@@ -353,7 +386,9 @@ TEST_CASE("BehaviorSystem: repair ship does not heal above maxHp", "[behavior]")
 TEST_CASE("BehaviorSystem: salvage ship writes intent toward nearest scrap", "[behavior]")
 {
     Fixture f;
-    const entt::entity ship = f.ships.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig salvageLayout = makeSingleModuleLayout("salvage_bay_module");
+    const entt::entity ship = f.ships.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f),
+                                             false, salvageLayout);
 
     const QVector2D scrapPos(100.0f, 0.0f);
     f.scraps.spawn(scrapPos, 1, 100000);
@@ -368,13 +403,17 @@ TEST_CASE("BehaviorSystem: salvage ship writes intent toward nearest scrap", "[b
 TEST_CASE("BehaviorSystem: salvage ship collects scrap on arrival", "[behavior]")
 {
     Fixture f;
-    const entt::entity ship       = f.ships.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig salvageLayout = makeSingleModuleLayout("salvage_bay_module");
+    const entt::entity ship       = f.ships.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f),
+                                                   false, salvageLayout);
     const entt::entity scrapEntity = f.scraps.spawn(QVector2D(0.0f, 0.0f), 1, 100000);
 
     f.ships.clearMovementIntents();
     f.ai.tickSalvageBehavior(f.admin, f.scraps, f.buildings);
 
-    REQUIRE(f.admin.get<SalvageCargoComponent>(ship).current == 1);
+    const entt::entity sc = firstSalvageChild(f.admin, ship);
+    REQUIRE(f.admin.isValid(sc));
+    REQUIRE(f.admin.get<SalvageCargoComponent>(sc).current == 1);
     REQUIRE_FALSE(f.admin.isValid(scrapEntity));
 }
 
@@ -395,9 +434,15 @@ TEST_CASE("BehaviorSystem: full-cargo salvage ship moves toward SalvageBay", "[b
     }
     REQUIRE(f.buildings.findBuilding(bayId) != nullptr);
 
-    const entt::entity ship = f.ships.spawn("salvage_ship", 1, QVector2D(5.0f, 0.0f));
+    const ShipLayoutConfig salvageLayout = makeSingleModuleLayout("salvage_bay_module");
-    SalvageCargoComponent& cargo = f.admin.get<SalvageCargoComponent>(ship);
+    const entt::entity ship = f.ships.spawn("salvage_ship", 1, QVector2D(5.0f, 0.0f),
-    cargo.current = cargo.capacity;  // full cargo
+                                             false, salvageLayout);
+    {
+        const entt::entity sc = firstSalvageChild(f.admin, ship);
+        REQUIRE(f.admin.isValid(sc));
+        SalvageCargoComponent& cargo = f.admin.get<SalvageCargoComponent>(sc);
+        cargo.current = cargo.capacity;  // full cargo
+    }
 
     f.ships.clearMovementIntents();
     f.ai.tickSalvageBehavior(f.admin, f.scraps, f.buildings);
@@ -467,7 +512,9 @@ TEST_CASE("SensorRange: enemy ship ignores player just outside sensor range", "[
 TEST_CASE("SensorRange: repair ship retreats from enemy within sensor range", "[sensor]")
 {
     Fixture f;
-    const entt::entity repairShip = f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig repairLayout = makeSingleModuleLayout("repair_tool_module");
+    const entt::entity repairShip = f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f),
+                                                   false, repairLayout);
     f.ships.spawn("interceptor", 1, QVector2D(200.0f, 0.0f), /*isEnemy=*/true);
 
     f.ships.clearMovementIntents();
@@ -480,7 +527,9 @@ TEST_CASE("SensorRange: repair ship retreats from enemy within sensor range", "[
 TEST_CASE("SensorRange: repair ship does not retreat from enemy beyond sensor range", "[sensor]")
 {
     Fixture f;
-    const entt::entity repairShip = f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig repairLayout = makeSingleModuleLayout("repair_tool_module");
+    const entt::entity repairShip = f.ships.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f),
+                                                   false, repairLayout);
     f.ships.spawn("interceptor", 1, QVector2D(300.0f, 0.0f), /*isEnemy=*/true);
 
     f.ships.clearMovementIntents();
@@ -492,7 +541,9 @@ TEST_CASE("SensorRange: repair ship does not retreat from enemy beyond sensor ra
 TEST_CASE("SensorRange: repair ship does not acquire damaged ally beyond sensor range", "[sensor]")
 {
     Fixture f;
-    const entt::entity repairShip = f.ships.spawn("repair_ship",  1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig repairLayout = makeSingleModuleLayout("repair_tool_module");
+    const entt::entity repairShip = f.ships.spawn("repair_ship",  1, QVector2D(0.0f, 0.0f),
+                                                   false, repairLayout);
     const entt::entity friendly   = f.ships.spawn("interceptor",  1, QVector2D(300.0f, 0.0f));
     f.admin.get<HealthComponent>(friendly).hp = f.admin.get<HealthComponent>(friendly).maxHp * 0.5f;
 
@@ -509,7 +560,9 @@ TEST_CASE("SensorRange: repair ship does not acquire damaged ally beyond sensor
 TEST_CASE("SensorRange: salvage ship ignores scrap beyond sensor range", "[sensor]")
 {
     Fixture f;
-    const entt::entity ship = f.ships.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig salvageLayout = makeSingleModuleLayout("salvage_bay_module");
+    const entt::entity ship = f.ships.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f),
+                                             false, salvageLayout);
     f.scraps.spawn(QVector2D(300.0f, 0.0f), 1, 100000);
 
     f.ships.clearMovementIntents();

src/test/CombatSystemTest.cpp

@@ -13,6 +13,7 @@
 #include "FireEvent.h"
 #include "HealthComponent.h"
 #include "HqProxyComponent.h"
+#include "ModuleOwnerComponent.h"
 #include "ScrapSystem.h"
 #include "ShipSystem.h"
 #include "Simulation.h"
@@ -30,7 +31,7 @@ static const ShipDef* findCombatShip(const GameConfig& cfg)
 {
     for (const ShipDef& def : cfg.ships.ships)
     {
-        if (def.combat)
+        if (!def.defaultModules.empty())
         {
             return &def;
         }
@@ -38,6 +39,17 @@ static const ShipDef* findCombatShip(const GameConfig& cfg)
     return nullptr;
 }
 
+static entt::entity findWeaponChild(EntityAdmin& admin, entt::entity ship)
+{
+    entt::entity result = entt::null;
+    admin.forEach<WeaponComponent, ModuleOwnerComponent>(
+        [&](entt::entity ce, const WeaponComponent&, const ModuleOwnerComponent& o)
+        {
+            if (o.owner == ship && result == entt::null) { result = ce; }
+        });
+    return result;
+}
+
 // Helper fixture for unit tests that need ships + combat but not a full Simulation.
 struct CombatFixture
 {
@@ -67,10 +79,13 @@ struct CombatFixture
 
     void wireEnemyTarget(entt::entity enemy, entt::entity playerTarget)
     {
-        if (admin.hasAll<WeaponComponent>(enemy))
+        // Set target on weapon child entity (CombatSystem syncs from ThreatResponse each tick,
+        // but also setting directly ensures the first tick fires without waiting for sync).
+        const entt::entity wc = findWeaponChild(admin, enemy);
+        if (wc != entt::null)
         {
-            admin.get<WeaponComponent>(enemy).currentTarget = playerTarget;
+            admin.get<WeaponComponent>(wc).currentTarget = playerTarget;
-            admin.get<WeaponComponent>(enemy).cooldownTicks = 0.0f;
+            admin.get<WeaponComponent>(wc).cooldownTicks = 0.0f;
         }
         if (admin.hasAll<ThreatResponseBehaviorComponent>(enemy))
         {
@@ -113,7 +128,11 @@ TEST_CASE("CombatSystem: cooldown prevents firing before it expires", "[combat]"
     const entt::entity player = f.ships.spawn(combatDef->id, 1, QVector2D(4.0f, 5.0f), false);
 
     f.wireEnemyTarget(enemy, player);
-    f.admin.get<WeaponComponent>(enemy).cooldownTicks = 3.0f;  // override to 3
+    {
+        const entt::entity wc = findWeaponChild(f.admin, enemy);
+        REQUIRE(f.admin.isValid(wc));
+        f.admin.get<WeaponComponent>(wc).cooldownTicks = 3.0f;  // override to 3
+    }
 
     auto enemyFiredIn = [&enemy](const std::vector<FireEvent>& evts)
     {

src/test/ConfigLoaderTest.cpp

@@ -108,23 +108,19 @@ TEST_CASE("ConfigLoader loads the committed bin/config/ configs end-to-end", "[c
     REQUIRE(ironIngotIt->outputs.size() == 1);
     REQUIRE_FALSE(ironIngotIt->outputs[0].probability.has_value());
 
-    // ships.toml — combat ships have a combat section; salvage ships don't.
+    // ships.toml — combat ships have default_modules with a weapon; salvage ships don't.
     const auto interceptorIt = std::find_if(
         cfg.ships.ships.begin(), cfg.ships.ships.end(),
         [](const ShipDef& s) { return s.id == "interceptor"; });
     REQUIRE(interceptorIt != cfg.ships.ships.end());
-    REQUIRE(interceptorIt->combat.has_value());
+    REQUIRE_FALSE(interceptorIt->defaultModules.empty());
-    REQUIRE_FALSE(interceptorIt->salvage.has_value());
+    REQUIRE(interceptorIt->defaultModules[0].moduleId == "laser_cannon");
-    REQUIRE_FALSE(interceptorIt->repair.has_value());
-    REQUIRE(interceptorIt->combat->damageFormula.evaluate(5.0) == Approx(20.0)); // "10 + 2*x"
 
     const auto salvageShipIt = std::find_if(
         cfg.ships.ships.begin(), cfg.ships.ships.end(),
         [](const ShipDef& s) { return s.id == "salvage_ship"; });
     REQUIRE(salvageShipIt != cfg.ships.ships.end());
-    REQUIRE_FALSE(salvageShipIt->combat.has_value());
+    REQUIRE(salvageShipIt->defaultModules.empty());
-    REQUIRE(salvageShipIt->salvage.has_value());
-    REQUIRE(salvageShipIt->salvage->cargoCapacity == 10);
 
     // stations.toml
     REQUIRE(cfg.stations.playerStation.level == 5);

src/test/ShipTest.cpp

@@ -3,6 +3,7 @@
 #include <cmath>
 #include <string>
 
+#include <QPoint>
 #include <QVector2D>
 
 #include "BuildingId.h"
@@ -10,11 +11,14 @@
 #include "DynamicBodyComponent.h"
 #include "EntityAdmin.h"
 #include "HealthComponent.h"
+#include "ModuleOwnerComponent.h"
 #include "RepairBehaviorComponent.h"
 #include "RepairToolComponent.h"
+#include "Rotation.h"
 #include "SalvageBehaviorComponent.h"
 #include "SalvageCargoComponent.h"
 #include "SensorRangeComponent.h"
+#include "ShipLayout.h"
 #include "ShipSystem.h"
 #include "Tick.h"
 #include "ThreatResponseBehaviorComponent.h"
@@ -26,10 +30,58 @@ static GameConfig loadConfig()
 }
 
 // ---------------------------------------------------------------------------
-// Combat ship
+// Helpers
 // ---------------------------------------------------------------------------
 
-TEST_CASE("ShipSystem: interceptor spawn has weapon and threatResponse, no cargo or repair",
+static entt::entity firstWeaponChild(EntityAdmin& admin, entt::entity ship)
+{
+    entt::entity result = entt::null;
+    admin.forEach<WeaponComponent, ModuleOwnerComponent>(
+        [&](entt::entity ce, const WeaponComponent&, const ModuleOwnerComponent& o)
+        {
+            if (o.owner == ship && result == entt::null) { result = ce; }
+        });
+    return result;
+}
+
+static entt::entity firstSalvageChild(EntityAdmin& admin, entt::entity ship)
+{
+    entt::entity result = entt::null;
+    admin.forEach<SalvageCargoComponent, ModuleOwnerComponent>(
+        [&](entt::entity ce, const SalvageCargoComponent&, const ModuleOwnerComponent& o)
+        {
+            if (o.owner == ship && result == entt::null) { result = ce; }
+        });
+    return result;
+}
+
+static entt::entity firstRepairChild(EntityAdmin& admin, entt::entity ship)
+{
+    entt::entity result = entt::null;
+    admin.forEach<RepairToolComponent, ModuleOwnerComponent>(
+        [&](entt::entity ce, const RepairToolComponent&, const ModuleOwnerComponent& o)
+        {
+            if (o.owner == ship && result == entt::null) { result = ce; }
+        });
+    return result;
+}
+
+static ShipLayoutConfig makeSingleModuleLayout(const std::string& moduleId)
+{
+    PlacedModule pm;
+    pm.moduleId = moduleId;
+    pm.position = QPoint(0, 0);
+    pm.rotation = Rotation::East;
+    ShipLayoutConfig layout;
+    layout.placedModules.push_back(pm);
+    return layout;
+}
+
+// ---------------------------------------------------------------------------
+// Combat ship (interceptor has default_modules = [laser_cannon])
+// ---------------------------------------------------------------------------
+
+TEST_CASE("ShipSystem: interceptor spawn has weapon child and threatResponse, no cargo or repair",
           "[ship]")
 {
     EntityAdmin admin;
@@ -39,10 +91,10 @@ TEST_CASE("ShipSystem: interceptor spawn has weapon and threatResponse, no cargo
     const entt::entity e = ss.spawn("interceptor", 1, QVector2D(0.0f, 0.0f));
 
     REQUIRE(admin.isValid(e));
-    REQUIRE(admin.hasAll<WeaponComponent>(e));
+    REQUIRE(admin.isValid(firstWeaponChild(admin, e)));
     REQUIRE(admin.hasAll<ThreatResponseBehaviorComponent>(e));
-    REQUIRE_FALSE(admin.hasAll<SalvageCargoComponent>(e));
+    REQUIRE_FALSE(admin.isValid(firstSalvageChild(admin, e)));
-    REQUIRE_FALSE(admin.hasAll<RepairToolComponent>(e));
+    REQUIRE_FALSE(admin.isValid(firstRepairChild(admin, e)));
     REQUIRE_FALSE(admin.hasAll<RepairBehaviorComponent>(e));
     REQUIRE_FALSE(admin.hasAll<SalvageBehaviorComponent>(e));
 }
@@ -58,14 +110,15 @@ TEST_CASE("ShipSystem: interceptor level 1 stats match config formulas", "[ship]
     // hp_formula = "40 + 5*x" at x=1 → 45
     REQUIRE(admin.get<HealthComponent>(e).maxHp == Approx(45.0f));
     REQUIRE(admin.get<HealthComponent>(e).hp    == Approx(45.0f));
-    // damage_formula = "10 + 2*x" at x=1 → 12
-    REQUIRE(admin.get<WeaponComponent>(e).damage == Approx(12.0f));
-    // attack_range_formula = "150"
-    REQUIRE(admin.get<WeaponComponent>(e).range == Approx(150.0f));
     // sensor_range_formula = "200"
     REQUIRE(admin.get<SensorRangeComponent>(e).value == Approx(200.0f));
-    // cooldownTicks starts at 0
+
-    REQUIRE(admin.get<WeaponComponent>(e).cooldownTicks == Approx(0.0f));
+    // laser_cannon: damage_formula = "2", attack_range_formula = "5"
+    const entt::entity wc = firstWeaponChild(admin, e);
+    REQUIRE(admin.isValid(wc));
+    REQUIRE(admin.get<WeaponComponent>(wc).damage == Approx(2.0f));
+    REQUIRE(admin.get<WeaponComponent>(wc).range  == Approx(5.0f));
+    REQUIRE(admin.get<WeaponComponent>(wc).cooldownTicks == Approx(0.0f));
 }
 
 TEST_CASE("ShipSystem: interceptor level 5 hp matches formula", "[ship]")
@@ -94,22 +147,23 @@ TEST_CASE("ShipSystem: interceptor level 0 maxSpeedPerTick matches formula / kTi
 }
 
 // ---------------------------------------------------------------------------
-// Salvage ship
+// Salvage ship (spawned with salvage_bay_module layout)
 // ---------------------------------------------------------------------------
 
-TEST_CASE("ShipSystem: salvage_ship spawn has cargo and scrapCollector, no weapon",
+TEST_CASE("ShipSystem: salvage_ship spawn with salvage module has cargo child and behavior, no weapon",
           "[ship]")
 {
     EntityAdmin admin;
     const GameConfig cfg = loadConfig();
     ShipSystem ss(cfg, admin);
 
-    const entt::entity e = ss.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig layout = makeSingleModuleLayout("salvage_bay_module");
+    const entt::entity e = ss.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f), false, layout);
 
-    REQUIRE(admin.hasAll<SalvageCargoComponent>(e));
+    REQUIRE(admin.isValid(firstSalvageChild(admin, e)));
     REQUIRE(admin.hasAll<SalvageBehaviorComponent>(e));
-    REQUIRE_FALSE(admin.hasAll<WeaponComponent>(e));
+    REQUIRE_FALSE(admin.isValid(firstWeaponChild(admin, e)));
-    REQUIRE_FALSE(admin.hasAll<RepairToolComponent>(e));
+    REQUIRE_FALSE(admin.isValid(firstRepairChild(admin, e)));
 }
 
 TEST_CASE("ShipSystem: salvage_ship cargo capacity matches config", "[ship]")
@@ -118,32 +172,37 @@ TEST_CASE("ShipSystem: salvage_ship cargo capacity matches config", "[ship]")
     const GameConfig cfg = loadConfig();
     ShipSystem ss(cfg, admin);
 
-    const entt::entity e = ss.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig layout = makeSingleModuleLayout("salvage_bay_module");
+    const entt::entity e = ss.spawn("salvage_ship", 1, QVector2D(0.0f, 0.0f), false, layout);
 
-    // cargo_capacity = 10
+    // salvage_bay_module: cargo_capacity_formula = "10", collection_range_formula = "50"
-    REQUIRE(admin.get<SalvageCargoComponent>(e).capacity == 10);
+    const entt::entity sc = firstSalvageChild(admin, e);
-    REQUIRE(admin.get<SalvageCargoComponent>(e).current  == 0);
+    REQUIRE(admin.isValid(sc));
+    REQUIRE(admin.get<SalvageCargoComponent>(sc).capacity == 10);
+    REQUIRE(admin.get<SalvageCargoComponent>(sc).current  == 0);
     REQUIRE(admin.get<SalvageBehaviorComponent>(e).deliveryBay == kInvalidBuildingId);
     REQUIRE_FALSE(admin.get<SalvageBehaviorComponent>(e).scrapTarget.has_value());
+    REQUIRE(admin.get<SalvageBehaviorComponent>(e).maxCollectionRange == Approx(50.0f));
 }
 
 // ---------------------------------------------------------------------------
-// Repair ship
+// Repair ship (spawned with repair_tool_module layout)
 // ---------------------------------------------------------------------------
 
-TEST_CASE("ShipSystem: repair_ship spawn has repairTool and repairBehavior, no weapon",
+TEST_CASE("ShipSystem: repair_ship spawn with repair module has repair child and behavior, no weapon",
           "[ship]")
 {
     EntityAdmin admin;
     const GameConfig cfg = loadConfig();
     ShipSystem ss(cfg, admin);
 
-    const entt::entity e = ss.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig layout = makeSingleModuleLayout("repair_tool_module");
+    const entt::entity e = ss.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f), false, layout);
 
-    REQUIRE(admin.hasAll<RepairToolComponent>(e));
+    REQUIRE(admin.isValid(firstRepairChild(admin, e)));
     REQUIRE(admin.hasAll<RepairBehaviorComponent>(e));
-    REQUIRE_FALSE(admin.hasAll<WeaponComponent>(e));
+    REQUIRE_FALSE(admin.isValid(firstWeaponChild(admin, e)));
-    REQUIRE_FALSE(admin.hasAll<SalvageCargoComponent>(e));
+    REQUIRE_FALSE(admin.isValid(firstSalvageChild(admin, e)));
 }
 
 TEST_CASE("ShipSystem: repair_ship level 1 repair stats match config formulas", "[ship]")
@@ -152,12 +211,17 @@ TEST_CASE("ShipSystem: repair_ship level 1 repair stats match config formulas",
     const GameConfig cfg = loadConfig();
     ShipSystem ss(cfg, admin);
 
-    const entt::entity e = ss.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f));
+    const ShipLayoutConfig layout = makeSingleModuleLayout("repair_tool_module");
+    const entt::entity e = ss.spawn("repair_ship", 1, QVector2D(0.0f, 0.0f), false, layout);
 
-    // repair_rate_formula = "5 + x" at x=1 → 6
+    // repair_tool_module: repair_rate_formula = "5 + x" at x=1 → 6 / kTickRateHz
-    REQUIRE(admin.get<RepairToolComponent>(e).ratePerTick == Approx(6.0f));
+    const float expectedRate = 6.0f / static_cast<float>(kTickRateHz);
+    const entt::entity rc = firstRepairChild(admin, e);
+    REQUIRE(admin.isValid(rc));
+    REQUIRE(admin.get<RepairToolComponent>(rc).ratePerTick == Approx(expectedRate));
     // repair_range_formula = "80"
-    REQUIRE(admin.get<RepairToolComponent>(e).range == Approx(80.0f));
+    REQUIRE(admin.get<RepairToolComponent>(rc).range == Approx(80.0f));
+    REQUIRE(admin.get<RepairBehaviorComponent>(e).maxRepairRange == Approx(80.0f));
 }
 
 // ---------------------------------------------------------------------------
@@ -171,22 +235,26 @@ TEST_CASE("ShipSystem: spawned ships are valid entities", "[ship]")
     ShipSystem ss(cfg, admin);
 
     const entt::entity e1 = ss.spawn("interceptor",  1, QVector2D(0.0f, 0.0f));
-    const entt::entity e2 = ss.spawn("salvage_ship", 1, QVector2D(1.0f, 0.0f));
+    const ShipLayoutConfig salvageLayout = makeSingleModuleLayout("salvage_bay_module");
+    const entt::entity e2 = ss.spawn("salvage_ship", 1, QVector2D(1.0f, 0.0f), false, salvageLayout);
 
     REQUIRE(admin.isValid(e1));
     REQUIRE(admin.isValid(e2));
     REQUIRE(e1 != e2);
 }
 
-TEST_CASE("ShipSystem: despawn removes the ship", "[ship]")
+TEST_CASE("ShipSystem: despawn removes the ship and its weapon children", "[ship]")
 {
     EntityAdmin admin;
     const GameConfig cfg = loadConfig();
     ShipSystem ss(cfg, admin);
 
-    const entt::entity e = ss.spawn("interceptor", 1, QVector2D(0.0f, 0.0f));
+    const entt::entity e  = ss.spawn("interceptor", 1, QVector2D(0.0f, 0.0f));
+    const entt::entity wc = firstWeaponChild(admin, e);
     REQUIRE(admin.isValid(e));
+    REQUIRE(admin.isValid(wc));
 
     ss.despawn(e);
     REQUIRE_FALSE(admin.isValid(e));
+    REQUIRE_FALSE(admin.isValid(wc));
 }

src/test/WaveSystemTest.cpp

@@ -10,6 +10,7 @@
 #include "FactionComponent.h"
 #include "HealthComponent.h"
 #include "HqProxyComponent.h"
+#include "ModuleOwnerComponent.h"
 #include "Rotation.h"
 #include "ShipIdentityComponent.h"
 #include "ShipSystem.h"
@@ -166,13 +167,14 @@ TEST_CASE("WaveSystem: HQ anchor is at asteroid right edge", "[wave]")
 
 TEST_CASE("WaveSystem: player stations have weapon set", "[wave]")
 {
-    const Simulation sim(loadConfig(), 42);
+    Simulation sim(loadConfig(), 42);
 
     int armedPlayerStations = 0;
-    sim.admin().forEach<StationBodyComponent, FactionComponent, WeaponComponent>(
+    sim.admin().forEach<WeaponComponent, ModuleOwnerComponent>(
-        [&](entt::entity /*e*/, const StationBodyComponent& /*sb*/, const FactionComponent& f,
+        [&](entt::entity /*e*/, const WeaponComponent& w, const ModuleOwnerComponent& mo)
-            const WeaponComponent& w)
         {
+            if (!sim.admin().hasAll<StationBodyComponent>(mo.owner)) { return; }
+            const FactionComponent& f = sim.admin().get<FactionComponent>(mo.owner);
             if (!f.isEnemy)
             {
                 ++armedPlayerStations;
@@ -186,13 +188,14 @@ TEST_CASE("WaveSystem: player stations have weapon set", "[wave]")
 
 TEST_CASE("WaveSystem: enemy stations have weapon set", "[wave]")
 {
-    const Simulation sim(loadConfig(), 42);
+    Simulation sim(loadConfig(), 42);
 
     int armedEnemyStations = 0;
-    sim.admin().forEach<StationBodyComponent, FactionComponent, WeaponComponent>(
+    sim.admin().forEach<WeaponComponent, ModuleOwnerComponent>(
-        [&](entt::entity /*e*/, const StationBodyComponent& /*sb*/, const FactionComponent& f,
+        [&](entt::entity /*e*/, const WeaponComponent& w, const ModuleOwnerComponent& mo)
-            const WeaponComponent& w)
         {
+            if (!sim.admin().hasAll<StationBodyComponent>(mo.owner)) { return; }
+            const FactionComponent& f = sim.admin().get<FactionComponent>(mo.owner);
             if (f.isEnemy)
             {
                 ++armedEnemyStations;

src/ui/GameWorldView.cpp

@@ -24,8 +24,6 @@
 #include "FactionComponent.h"
 #include "HealthComponent.h"
 #include "PositionComponent.h"
-#include "RepairToolComponent.h"
-#include "SalvageCargoComponent.h"
 #include "ScrapSystem.h"
 #include "SensorRangeComponent.h"
 #include "ShipIdentityComponent.h"
@@ -62,13 +60,6 @@ Rotation rotateCounterClockwise(Rotation r)
     return Rotation::East;
 }
 
-ShipRole shipRoleFromComponents(bool isEnemy, bool hasCargo, bool hasRepairTool)
-{
-    if (isEnemy)      { return ShipRole::Enemy; }
-    if (hasCargo)     { return ShipRole::Salvage; }
-    if (hasRepairTool){ return ShipRole::Repair; }
-    return ShipRole::PlayerCombat;
-}
 
 QString toDisplayName(const std::string& id)
 {
@@ -847,15 +838,12 @@ void GameWorldView::drawShips(QPainter& painter)
 {
     m_sim->admin().forEach<ShipIdentityComponent, PositionComponent, FacingComponent,
                            FactionComponent>(
-        [&](entt::entity e, const ShipIdentityComponent& /*si*/,
+        [&](entt::entity /*e*/, const ShipIdentityComponent& si,
             const PositionComponent& pos, const FacingComponent& facing,
-            const FactionComponent& fac)
+            const FactionComponent& /*fac*/)
         {
-            const bool hasCargo  = m_sim->admin().hasAll<SalvageCargoComponent>(e);
+            const std::map<std::string, ShipVisuals>::const_iterator it =
-            const bool hasRepair = m_sim->admin().hasAll<RepairToolComponent>(e);
+                m_visuals->ships.find(si.schematicId);
-            const ShipRole role  = shipRoleFromComponents(fac.isEnemy, hasCargo, hasRepair);
-            const std::map<ShipRole, ShipVisuals>::const_iterator it =
-                m_visuals->ships.find(role);
             if (it == m_visuals->ships.end()) { return; }
 
             const QPointF center = worldToWidget(pos.value);
@@ -884,15 +872,12 @@ void GameWorldView::drawDebugSensorRanges(QPainter& painter)
     painter.setBrush(Qt::NoBrush);
     m_sim->admin().forEach<ShipIdentityComponent, PositionComponent, FacingComponent,
                            FactionComponent, SensorRangeComponent>(
-        [&](entt::entity e, const ShipIdentityComponent& /*si*/,
+        [&](entt::entity /*e*/, const ShipIdentityComponent& si,
             const PositionComponent& pos, const FacingComponent& /*facing*/,
-            const FactionComponent& fac, const SensorRangeComponent& sensor)
+            const FactionComponent& /*fac*/, const SensorRangeComponent& sensor)
         {
-            const bool hasCargo  = m_sim->admin().hasAll<SalvageCargoComponent>(e);
+            const std::map<std::string, ShipVisuals>::const_iterator it =
-            const bool hasRepair = m_sim->admin().hasAll<RepairToolComponent>(e);
+                m_visuals->ships.find(si.schematicId);
-            const ShipRole role  = shipRoleFromComponents(fac.isEnemy, hasCargo, hasRepair);
-            const std::map<ShipRole, ShipVisuals>::const_iterator it =
-                m_visuals->ships.find(role);
             if (it == m_visuals->ships.end()) { return; }
 
             const QPointF center   = worldToWidget(pos.value);

src/ui/VisualsConfig.h

@@ -55,14 +55,6 @@ struct ToastVisuals
     int    fontSize;
 };
 
-enum class ShipRole
-{
-    PlayerCombat,
-    Salvage,
-    Repair,
-    Enemy,
-};
-
 struct VisualsConfig
 {
     TileVisuals asteroid;
@@ -70,7 +62,7 @@ struct VisualsConfig
 
     std::map<BuildingType, BuildingVisuals> buildings;
     std::map<std::string,  ItemVisuals>     items;
-    std::map<ShipRole,     ShipVisuals>     ships;
+    std::map<std::string,  ShipVisuals>     ships;
 
     BeamVisuals    beams;
     OverlayVisuals overlays;

src/ui/VisualsLoader.cpp

@@ -190,17 +190,20 @@ VisualsConfig VisualsLoader::load(const std::string& path)
         }
     }
 
-    // Ships
+    // Ships (dynamic keys: each key is a schematic id)
     {
         toml::table& ships = requireSubtable(tbl, "ships", "root");
-        cfg.ships[ShipRole::PlayerCombat] = parseShip(
+        for (toml::table::iterator it = ships.begin(); it != ships.end(); ++it)
-            requireSubtable(ships, "player_combat", "ships"), "ships.player_combat");
+        {
-        cfg.ships[ShipRole::Salvage] = parseShip(
+            std::string schematicId = std::string(it->first.str());
-            requireSubtable(ships, "salvage", "ships"), "ships.salvage");
+            toml::table* sub = it->second.as_table();
-        cfg.ships[ShipRole::Repair] = parseShip(
+            if (sub == nullptr)
-            requireSubtable(ships, "repair", "ships"), "ships.repair");
+            {
-        cfg.ships[ShipRole::Enemy] = parseShip(
+                throw std::runtime_error("visuals.toml: ships." + schematicId
-            requireSubtable(ships, "enemy", "ships"), "ships.enemy");
+                                         + " is not a table");
+            }
+            cfg.ships[schematicId] = parseShip(*sub, "ships." + schematicId);
+        }
     }
 
     // Beams