UPDATE

koptilnya/engine_remastered/factories/gearbox.txt

@@ -1,10 +1,11 @@
--- @include ../gearboxes/manual.txt
-require('../gearboxes/manual.txt')
--- require('../gearboxes/auto.txt')
--- require('../gearboxes/cvt.txt')
+-- @include ../powertrain/gearboxes/manual.txt
 
-GearboxFactory = class('GearboxFactory')
+local ManualGearbox = require('../powertrain/gearboxes/manual.txt')
 
-function GearboxFactory.create(...)
+local GearboxFactory = class('GearboxFactory')
+
+function GearboxFactory.static:create(...)
     return ManualGearbox:new(...)
 end
+
+return GearboxFactory

koptilnya/engine_remastered/factories/powertrain_component.txt

@@ -0,0 +1,34 @@
+--@include ../powertrain/engine.txt
+--@include ../powertrain/clutch.txt
+--@include ../powertrain/differential.txt
+--@include ../powertrain/wheel.txt
+--@include ./gearbox.txt
+--@include ../enums/powertrain_component.txt
+
+local Engine = require('../powertrain/engine.txt')
+local Clutch = require('../powertrain/clutch.txt')
+local Differential = require('../powertrain/differential.txt')
+local Wheel = require('../powertrain/wheel.txt')
+local GearboxFactory = require('./gearbox.txt')
+
+local POWERTRAIN_COMPONENT = require('../enums/powertrain_component.txt')
+
+local PowertrainComponentFactory = class('PowertrainComponentFactory')
+
+function PowertrainComponentFactory.static:create(vehicle, type, name, config)
+    local args = { vehicle, name, config }
+
+    if type == POWERTRAIN_COMPONENT.Engine then
+        return Engine:new(unpack(args))
+    elseif type == POWERTRAIN_COMPONENT.Clutch then
+        return Clutch:new(unpack(args))
+    elseif type == POWERTRAIN_COMPONENT.Gearbox then
+        return GearboxFactory:create(unpack(args))
+    elseif type == POWERTRAIN_COMPONENT.Differential then
+        return Differential:new(unpack(args))
+    elseif type == POWERTRAIN_COMPONENT.Wheel then
+        return Wheel:new(unpack(args))
+    end
+end
+
+return PowertrainComponentFactory